[X9D] I remove the Project directory from ST library

This commit is contained in:
bsongis
2012-12-21 06:30:49 +00:00
parent f00ed18da8
commit 3d6d7e6a20
604 changed files with 0 additions and 173686 deletions
@@ -1,261 +0,0 @@
/**
******************************************************************************
* @file ADC/ADC3_DMA/main.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main program body
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
#include "stm322xg_eval.h"
#include "stm322xg_eval_lcd.h"
#include <stdio.h>
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup ADC_ADC3_DMA
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* used to display the ADC converted value on LCD */
#define PRINT_ON_LCD
/* if you are not using the LCD, you can monitor the converted value by adding
the variable "ADC3ConvertedValue" to the debugger watch window */
#define ADC3_DR_ADDRESS ((uint32_t)0x4001224C)
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
__IO uint16_t ADC3ConvertedValue = 0;
__IO uint32_t ADC3ConvertedVoltage = 0;
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
void ADC3_CH7_DMA_Config(void);
#ifdef PRINT_ON_LCD
void Display_Init(void);
void Display(void);
#endif /* PRINT_ON_LCD */
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f2xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f2xx.c file
*/
#ifdef PRINT_ON_LCD
/* LCD Display init */
Display_Init();
#endif
/* ADC3 configuration *******************************************************/
/* - Enable peripheral clocks */
/* - DMA2_Stream0 channel2 configuration */
/* - Configure ADC Channel7 pin as analog input */
/* - Configure ADC3 Channel7 */
ADC3_CH7_DMA_Config();
/* Start ADC3 Software Conversion */
ADC_SoftwareStartConv(ADC3);
while (1)
{
ADC3ConvertedVoltage = ADC3ConvertedValue *3300/0xFFF;
#ifdef PRINT_ON_LCD
/* Display ADC3 converted value on LCD */
Display();
#endif
}
}
/**
* @brief ADC3 channel07 with DMA configuration
* @param None
* @retval None
*/
void ADC3_CH7_DMA_Config(void)
{
ADC_InitTypeDef ADC_InitStructure;
ADC_CommonInitTypeDef ADC_CommonInitStructure;
DMA_InitTypeDef DMA_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
/* Enable ADC3, DMA2 and GPIO clocks ****************************************/
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2 | RCC_AHB1Periph_GPIOF, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC3, ENABLE);
/* DMA2 Stream0 channel2 configuration **************************************/
DMA_InitStructure.DMA_Channel = DMA_Channel_2;
DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)ADC3_DR_ADDRESS;
DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)&ADC3ConvertedValue;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
DMA_InitStructure.DMA_BufferSize = 1;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Disable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
DMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Disable;
DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_HalfFull;
DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
DMA_Init(DMA2_Stream0, &DMA_InitStructure);
DMA_Cmd(DMA2_Stream0, ENABLE);
/* Configure ADC3 Channel7 pin as analog input ******************************/
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;
GPIO_Init(GPIOF, &GPIO_InitStructure);
/* ADC Common Init **********************************************************/
ADC_CommonInitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_CommonInitStructure.ADC_Prescaler = ADC_Prescaler_Div2;
ADC_CommonInitStructure.ADC_DMAAccessMode = ADC_DMAAccessMode_Disabled;
ADC_CommonInitStructure.ADC_TwoSamplingDelay = ADC_TwoSamplingDelay_5Cycles;
ADC_CommonInit(&ADC_CommonInitStructure);
/* ADC3 Init ****************************************************************/
ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
ADC_InitStructure.ADC_ScanConvMode = DISABLE;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_T1_CC1;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfConversion = 1;
ADC_Init(ADC3, &ADC_InitStructure);
/* ADC3 regular channel7 configuration *************************************/
ADC_RegularChannelConfig(ADC3, ADC_Channel_7, 1, ADC_SampleTime_3Cycles);
/* Enable DMA request after last transfer (Single-ADC mode) */
ADC_DMARequestAfterLastTransferCmd(ADC3, ENABLE);
/* Enable ADC3 DMA */
ADC_DMACmd(ADC3, ENABLE);
/* Enable ADC3 */
ADC_Cmd(ADC3, ENABLE);
}
#ifdef PRINT_ON_LCD
/**
* @brief Display ADC converted value on LCD
* @param None
* @retval None
*/
void Display(void)
{
uint32_t v=0,mv=0;
uint8_t text[50];
v=(ADC3ConvertedVoltage)/1000;
mv = (ADC3ConvertedVoltage%1000)/100;
sprintf((char*)text," ADC = %d,%d V ",v,mv);
LCD_DisplayStringLine(LINE(6),text);
}
/**
* @brief Display Init (LCD)
* @param None
* @retval None
*/
void Display_Init(void)
{
/* Initialize the LCD */
STM322xG_LCD_Init();
/* Clear the LCD */
LCD_Clear(White);
/* Set the LCD Text size */
LCD_SetFont(&Font8x12);
/* Set the LCD Back Color and Text Color*/
LCD_SetBackColor(Blue);
LCD_SetTextColor(White);
/* Display */
LCD_DisplayStringLine(LINE(0x13), " ADC conversion w/ DMA transfer example ");
/* Set the LCD Text size */
LCD_SetFont(&Font16x24);
/* Display */
LCD_DisplayStringLine(LINE(0), "ADC Conversion @2Msps");
/* Set the LCD Back Color and Text Color*/
LCD_SetBackColor(White);
LCD_SetTextColor(Blue);
/* Display */
LCD_DisplayStringLine(LINE(2)," Turn RV1(PF.09) ");
LCD_DisplayStringLine(LINE(4)," Potentiometer ");
}
#endif /* PRINT_ON_LCD */
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,81 +0,0 @@
/**
@page ADC_ADC3_DMA ADC3 conversion using DMA for Data transfer
@verbatim
******************** (C) COPYRIGHT 2012 STMicroelectronics *******************
* @file ADC/ADC3_DMA/readme.txt
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Description of the ADC3 DMA example.
******************************************************************************
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
@endverbatim
@par Example Description
This example describes how to use the ADC3 and DMA to transfer continuously
converted data from ADC3 to memory.
The ADC3 is configured to convert continuously channel7.
Each time an end of conversion occurs the DMA transfers, in circular mode, the
converted data from ADC3 DR register to the ADC3ConvertedValue variable.
In this example, the system clock is 120MHz, APB2 =60MHz and ADC clock = APB2 /2.
Since ADC3 clock is 30 MHz and sampling time is set to 3 cycles, the total
conversion time is 0.5 us (2Msps).
User can vary the ADC3 channel7 voltage using the Eval Board potentiometer
The converted voltage is displayed on the Eval Board LCD (when the define PRINT_ON_LCD
is enabled in main.c)
@par Directory contents
- ADC/ADC3_DMA/system_stm32f2xx.c STM32F2xx system clock configuration file
- ADC/ADC3_DMA/stm32f2xx_conf.h Library Configuration file
- ADC/ADC3_DMA/stm32f2xx_it.c Interrupt handlers
- ADC/ADC3_DMA/stm32f2xx_it.h Interrupt handlers header file
- ADC/ADC3_DMA/main.c Main program
@note The "system_stm32f2xx.c" is generated by an automatic clock configuration
tool and can be easily customized to your own configuration.
To select different clock setup, use the "STM32F2xx_Clock_Configuration_V1.0.0.xls"
provided with the AN3362 package available on <a href="http://www.st.com/internet/mcu/family/141.jsp"> ST Microcontrollers </a>
@par Hardware and Software environment
- This example runs on STM32F2xx Devices.
- This example has been tested with STM322xG-EVAL RevB and can be easily tailored
to any other development board.
- STM322xG-EVAL Set-up
- Use the Potentiometer (RV1) of the Eval board (connected to PF.09).
@par How to use it ?
In order to make the program work, you must do the following :
- Copy all source files from this example folder to the template folder under
Project\STM32F2xx_StdPeriph_Template
- Open your preferred toolchain
- Rebuild all files and load your image into target memory
- Run the example
* <h3><center>&copy; COPYRIGHT STMicroelectronics</center></h3>
*/
@@ -1,94 +0,0 @@
/**
******************************************************************************
* @file ADC/ADC3_DMA/stm32f2xx_conf.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Library configuration file.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_CONF_H
#define __STM32F2xx_CONF_H
/* Includes ------------------------------------------------------------------*/
/* Uncomment the line below to enable peripheral header file inclusion */
#include "stm32f2xx_adc.h"
#include "stm32f2xx_can.h"
#include "stm32f2xx_crc.h"
#include "stm32f2xx_cryp.h"
#include "stm32f2xx_dac.h"
#include "stm32f2xx_dbgmcu.h"
#include "stm32f2xx_dcmi.h"
#include "stm32f2xx_dma.h"
#include "stm32f2xx_exti.h"
#include "stm32f2xx_flash.h"
#include "stm32f2xx_fsmc.h"
#include "stm32f2xx_hash.h"
#include "stm32f2xx_gpio.h"
#include "stm32f2xx_i2c.h"
#include "stm32f2xx_iwdg.h"
#include "stm32f2xx_pwr.h"
#include "stm32f2xx_rcc.h"
#include "stm32f2xx_rng.h"
#include "stm32f2xx_rtc.h"
#include "stm32f2xx_sdio.h"
#include "stm32f2xx_spi.h"
#include "stm32f2xx_syscfg.h"
#include "stm32f2xx_tim.h"
#include "stm32f2xx_usart.h"
#include "stm32f2xx_wwdg.h"
#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* If an external clock source is used, then the value of the following define
should be set to the value of the external clock source, else, if no external
clock is used, keep this define commented */
/*#define I2S_EXTERNAL_CLOCK_VAL 12288000 */ /* Value of the external clock in Hz */
/* Uncomment the line below to expanse the "assert_param" macro in the
Standard Peripheral Library drivers code */
/* #define USE_FULL_ASSERT 1 */
/* Exported macro ------------------------------------------------------------*/
#ifdef USE_FULL_ASSERT
/**
* @brief The assert_param macro is used for function's parameters check.
* @param expr: If expr is false, it calls assert_failed function
* which reports the name of the source file and the source
* line number of the call that failed.
* If expr is true, it returns no value.
* @retval None
*/
#define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__))
/* Exported functions ------------------------------------------------------- */
void assert_failed(uint8_t* file, uint32_t line);
#else
#define assert_param(expr) ((void)0)
#endif /* USE_FULL_ASSERT */
#endif /* __STM32F2xx_CONF_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,170 +0,0 @@
/**
******************************************************************************
* @file ADC/ADC3_DMA/stm32f2xx_it.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main Interrupt Service Routines.
* This file provides template for all exceptions handler and
* peripherals interrupt service routine.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx_it.h"
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup ADC_ADC3_DMA
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/******************************************************************************/
/* Cortex-M3 Processor Exceptions Handlers */
/******************************************************************************/
/**
* @brief This function handles NMI exception.
* @param None
* @retval None
*/
void NMI_Handler(void)
{
}
/**
* @brief This function handles Hard Fault exception.
* @param None
* @retval None
*/
void HardFault_Handler(void)
{
/* Go to infinite loop when Hard Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Memory Manage exception.
* @param None
* @retval None
*/
void MemManage_Handler(void)
{
/* Go to infinite loop when Memory Manage exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Bus Fault exception.
* @param None
* @retval None
*/
void BusFault_Handler(void)
{
/* Go to infinite loop when Bus Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Usage Fault exception.
* @param None
* @retval None
*/
void UsageFault_Handler(void)
{
/* Go to infinite loop when Usage Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles SVCall exception.
* @param None
* @retval None
*/
void SVC_Handler(void)
{
}
/**
* @brief This function handles Debug Monitor exception.
* @param None
* @retval None
*/
void DebugMon_Handler(void)
{
}
/**
* @brief This function handles PendSVC exception.
* @param None
* @retval None
*/
void PendSV_Handler(void)
{
}
/**
* @brief This function handles SysTick Handler.
* @param None
* @retval None
*/
void SysTick_Handler(void)
{
}
/******************************************************************************/
/* STM32F2xx Peripherals Interrupt Handlers */
/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */
/* available peripheral interrupt handler's name please refer to the startup */
/* file (startup_stm32f2xx.s). */
/******************************************************************************/
/**
* @brief This function handles PPP interrupt request.
* @param None
* @retval None
*/
/*void PPP_IRQHandler(void)
{
}*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,60 +0,0 @@
/**
******************************************************************************
* @file ADC/ADC3_DMA/stm32f2xx_it.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief This file contains the headers of the interrupt handlers.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_IT_H
#define __STM32F2xx_IT_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
void NMI_Handler(void);
void HardFault_Handler(void);
void MemManage_Handler(void);
void BusFault_Handler(void);
void UsageFault_Handler(void);
void SVC_Handler(void);
void DebugMon_Handler(void);
void PendSV_Handler(void);
void SysTick_Handler(void);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F2xx_IT_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,542 +0,0 @@
/**
******************************************************************************
* @file system_stm32f2xx.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File.
* This file contains the system clock configuration for STM32F2xx devices,
* and is generated by the clock configuration tool
* "STM32f2xx_Clock_Configuration_V1.0.0.xls"
*
* 1. This file provides two functions and one global variable to be called from
* user application:
* - SystemInit(): Setups the system clock (System clock source, PLL Multiplier
* and Divider factors, AHB/APBx prescalers and Flash settings),
* depending on the configuration made in the clock xls tool.
* This function is called at startup just after reset and
* before branch to main program. This call is made inside
* the "startup_stm32f2xx.s" file.
*
* - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
* by the user application to setup the SysTick
* timer or configure other parameters.
*
* - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
* be called whenever the core clock is changed
* during program execution.
*
* 2. After each device reset the HSI (16 MHz) is used as system clock source.
* Then SystemInit() function is called, in "startup_stm32f2xx.s" file, to
* configure the system clock before to branch to main program.
*
* 3. If the system clock source selected by user fails to startup, the SystemInit()
* function will do nothing and HSI still used as system clock source. User can
* add some code to deal with this issue inside the SetSysClock() function.
*
* 4. The default value of HSE crystal is set to 25MHz, refer to "HSE_VALUE" define
* in "stm32f2xx.h" file. When HSE is used as system clock source, directly or
* through PLL, and you are using different crystal you have to adapt the HSE
* value to your own configuration.
*
* 5. This file configures the system clock as follows:
*=============================================================================
*=============================================================================
* Supported STM32F2xx device revision | Rev B and Y
*-----------------------------------------------------------------------------
* System Clock source | PLL (HSE)
*-----------------------------------------------------------------------------
* SYSCLK(Hz) | 120000000
*-----------------------------------------------------------------------------
* HCLK(Hz) | 120000000
*-----------------------------------------------------------------------------
* AHB Prescaler | 1
*-----------------------------------------------------------------------------
* APB1 Prescaler | 4
*-----------------------------------------------------------------------------
* APB2 Prescaler | 2
*-----------------------------------------------------------------------------
* HSE Frequency(Hz) | 25000000
*-----------------------------------------------------------------------------
* PLL_M | 25
*-----------------------------------------------------------------------------
* PLL_N | 240
*-----------------------------------------------------------------------------
* PLL_P | 2
*-----------------------------------------------------------------------------
* PLL_Q | 5
*-----------------------------------------------------------------------------
* PLLI2S_N | NA
*-----------------------------------------------------------------------------
* PLLI2S_R | NA
*-----------------------------------------------------------------------------
* I2S input clock | NA
*-----------------------------------------------------------------------------
* VDD(V) | 3.3
*-----------------------------------------------------------------------------
* Flash Latency(WS) | 3
*-----------------------------------------------------------------------------
* Prefetch Buffer | ON
*-----------------------------------------------------------------------------
* Instruction cache | ON
*-----------------------------------------------------------------------------
* Data cache | ON
*-----------------------------------------------------------------------------
* Require 48MHz for USB OTG FS, | Enabled
* SDIO and RNG clock |
*-----------------------------------------------------------------------------
*=============================================================================
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/** @addtogroup CMSIS
* @{
*/
/** @addtogroup stm32f2xx_system
* @{
*/
/** @addtogroup STM32F2xx_System_Private_Includes
* @{
*/
#include "stm32f2xx.h"
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Defines
* @{
*/
/*!< Uncomment the following line if you need to use external SRAM mounted
on STM322xG_EVAL board as data memory */
/* #define DATA_IN_ExtSRAM */
/*!< Uncomment the following line if you need to relocate your vector Table in
Internal SRAM. */
/* #define VECT_TAB_SRAM */
#define VECT_TAB_OFFSET 0x00 /*!< Vector Table base offset field.
This value must be a multiple of 0x200. */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N */
#define PLL_M 25
#define PLL_N 240
/* SYSCLK = PLL_VCO / PLL_P */
#define PLL_P 2
/* USB OTG FS, SDIO and RNG Clock = PLL_VCO / PLLQ */
#define PLL_Q 5
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Macros
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Variables
* @{
*/
uint32_t SystemCoreClock = 120000000;
__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_FunctionPrototypes
* @{
*/
static void SetSysClock(void);
#ifdef DATA_IN_ExtSRAM
static void SystemInit_ExtMemCtl(void);
#endif /* DATA_IN_ExtSRAM */
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Functions
* @{
*/
/**
* @brief Setup the microcontroller system
* Initialize the Embedded Flash Interface, the PLL and update the
* SystemFrequency variable.
* @param None
* @retval None
*/
void SystemInit(void)
{
/* Reset the RCC clock configuration to the default reset state ------------*/
/* Set HSION bit */
RCC->CR |= (uint32_t)0x00000001;
/* Reset CFGR register */
RCC->CFGR = 0x00000000;
/* Reset HSEON, CSSON and PLLON bits */
RCC->CR &= (uint32_t)0xFEF6FFFF;
/* Reset PLLCFGR register */
RCC->PLLCFGR = 0x24003010;
/* Reset HSEBYP bit */
RCC->CR &= (uint32_t)0xFFFBFFFF;
/* Disable all interrupts */
RCC->CIR = 0x00000000;
#ifdef DATA_IN_ExtSRAM
SystemInit_ExtMemCtl();
#endif /* DATA_IN_ExtSRAM */
/* Configure the System clock source, PLL Multiplier and Divider factors,
AHB/APBx prescalers and Flash settings ----------------------------------*/
SetSysClock();
/* Configure the Vector Table location add offset address ------------------*/
#ifdef VECT_TAB_SRAM
SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */
#else
SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */
#endif
}
/**
* @brief Update SystemCoreClock variable according to Clock Register Values.
* The SystemCoreClock variable contains the core clock (HCLK), it can
* be used by the user application to setup the SysTick timer or configure
* other parameters.
*
* @note Each time the core clock (HCLK) changes, this function must be called
* to update SystemCoreClock variable value. Otherwise, any configuration
* based on this variable will be incorrect.
*
* @note - The system frequency computed by this function is not the real
* frequency in the chip. It is calculated based on the predefined
* constant and the selected clock source:
*
* - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*)
*
* - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**)
*
* - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**)
* or HSI_VALUE(*) multiplied/divided by the PLL factors.
*
* (*) HSI_VALUE is a constant defined in stm32f2xx.h file (default value
* 16 MHz) but the real value may vary depending on the variations
* in voltage and temperature.
*
* (**) HSE_VALUE is a constant defined in stm32f2xx.h file (default value
* 25 MHz), user has to ensure that HSE_VALUE is same as the real
* frequency of the crystal used. Otherwise, this function may
* have wrong result.
*
* - The result of this function could be not correct when using fractional
* value for HSE crystal.
*
* @param None
* @retval None
*/
void SystemCoreClockUpdate(void)
{
uint32_t tmp = 0, pllvco = 0, pllp = 2, pllsource = 0, pllm = 2;
/* Get SYSCLK source -------------------------------------------------------*/
tmp = RCC->CFGR & RCC_CFGR_SWS;
switch (tmp)
{
case 0x00: /* HSI used as system clock source */
SystemCoreClock = HSI_VALUE;
break;
case 0x04: /* HSE used as system clock source */
SystemCoreClock = HSE_VALUE;
break;
case 0x08: /* PLL used as system clock source */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N
SYSCLK = PLL_VCO / PLL_P
*/
pllsource = (RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) >> 22;
pllm = RCC->PLLCFGR & RCC_PLLCFGR_PLLM;
if (pllsource != 0)
{
/* HSE used as PLL clock source */
pllvco = (HSE_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
}
else
{
/* HSI used as PLL clock source */
pllvco = (HSI_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
}
pllp = (((RCC->PLLCFGR & RCC_PLLCFGR_PLLP) >>16) + 1 ) *2;
SystemCoreClock = pllvco/pllp;
break;
default:
SystemCoreClock = HSI_VALUE;
break;
}
/* Compute HCLK frequency --------------------------------------------------*/
/* Get HCLK prescaler */
tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)];
/* HCLK frequency */
SystemCoreClock >>= tmp;
}
/**
* @brief Configures the System clock source, PLL Multiplier and Divider factors,
* AHB/APBx prescalers and Flash settings
* @Note This function should be called only once the RCC clock configuration
* is reset to the default reset state (done in SystemInit() function).
* @param None
* @retval None
*/
static void SetSysClock(void)
{
/******************************************************************************/
/* PLL (clocked by HSE) used as System clock source */
/******************************************************************************/
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
/* Enable HSE */
RCC->CR |= ((uint32_t)RCC_CR_HSEON);
/* Wait till HSE is ready and if Time out is reached exit */
do
{
HSEStatus = RCC->CR & RCC_CR_HSERDY;
StartUpCounter++;
} while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
if ((RCC->CR & RCC_CR_HSERDY) != RESET)
{
HSEStatus = (uint32_t)0x01;
}
else
{
HSEStatus = (uint32_t)0x00;
}
if (HSEStatus == (uint32_t)0x01)
{
/* HCLK = SYSCLK / 1*/
RCC->CFGR |= RCC_CFGR_HPRE_DIV1;
/* PCLK2 = HCLK / 2*/
RCC->CFGR |= RCC_CFGR_PPRE2_DIV2;
/* PCLK1 = HCLK / 4*/
RCC->CFGR |= RCC_CFGR_PPRE1_DIV4;
/* Configure the main PLL */
RCC->PLLCFGR = PLL_M | (PLL_N << 6) | (((PLL_P >> 1) -1) << 16) |
(RCC_PLLCFGR_PLLSRC_HSE) | (PLL_Q << 24);
/* Enable the main PLL */
RCC->CR |= RCC_CR_PLLON;
/* Wait till the main PLL is ready */
while((RCC->CR & RCC_CR_PLLRDY) == 0)
{
}
/* Configure Flash prefetch, Instruction cache, Data cache and wait state */
FLASH->ACR = FLASH_ACR_PRFTEN | FLASH_ACR_ICEN | FLASH_ACR_DCEN | FLASH_ACR_LATENCY_3WS;
/* Select the main PLL as system clock source */
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW));
RCC->CFGR |= RCC_CFGR_SW_PLL;
/* Wait till the main PLL is used as system clock source */
while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS ) != RCC_CFGR_SWS_PLL);
{
}
}
else
{ /* If HSE fails to start-up, the application will have wrong clock
configuration. User can add here some code to deal with this error */
}
}
/**
* @brief Setup the external memory controller. Called in startup_stm32f2xx.s
* before jump to __main
* @param None
* @retval None
*/
#ifdef DATA_IN_ExtSRAM
/**
* @brief Setup the external memory controller.
* Called in startup_stm32f2xx.s before jump to main.
* This function configures the external SRAM mounted on STM322xG_EVAL board
* This SRAM will be used as program data memory (including heap and stack).
* @param None
* @retval None
*/
void SystemInit_ExtMemCtl(void)
{
/*-- GPIOs Configuration -----------------------------------------------------*/
/*
+-------------------+--------------------+------------------+------------------+
+ SRAM pins assignment +
+-------------------+--------------------+------------------+------------------+
| PD0 <-> FSMC_D2 | PE0 <-> FSMC_NBL0 | PF0 <-> FSMC_A0 | PG0 <-> FSMC_A10 |
| PD1 <-> FSMC_D3 | PE1 <-> FSMC_NBL1 | PF1 <-> FSMC_A1 | PG1 <-> FSMC_A11 |
| PD4 <-> FSMC_NOE | PE7 <-> FSMC_D4 | PF2 <-> FSMC_A2 | PG2 <-> FSMC_A12 |
| PD5 <-> FSMC_NWE | PE8 <-> FSMC_D5 | PF3 <-> FSMC_A3 | PG3 <-> FSMC_A13 |
| PD8 <-> FSMC_D13 | PE9 <-> FSMC_D6 | PF4 <-> FSMC_A4 | PG4 <-> FSMC_A14 |
| PD9 <-> FSMC_D14 | PE10 <-> FSMC_D7 | PF5 <-> FSMC_A5 | PG5 <-> FSMC_A15 |
| PD10 <-> FSMC_D15 | PE11 <-> FSMC_D8 | PF12 <-> FSMC_A6 | PG9 <-> FSMC_NE2 |
| PD11 <-> FSMC_A16 | PE12 <-> FSMC_D9 | PF13 <-> FSMC_A7 |------------------+
| PD12 <-> FSMC_A17 | PE13 <-> FSMC_D10 | PF14 <-> FSMC_A8 |
| PD14 <-> FSMC_D0 | PE14 <-> FSMC_D11 | PF15 <-> FSMC_A9 |
| PD15 <-> FSMC_D1 | PE15 <-> FSMC_D12 |------------------+
+-------------------+--------------------+
*/
/* Enable GPIOD, GPIOE, GPIOF and GPIOG interface clock */
RCC->AHB1ENR = 0x00000078;
/* Connect PDx pins to FSMC Alternate function */
GPIOD->AFR[0] = 0x00cc00cc;
GPIOD->AFR[1] = 0xcc0ccccc;
/* Configure PDx pins in Alternate function mode */
GPIOD->MODER = 0xa2aa0a0a;
/* Configure PDx pins speed to 100 MHz */
GPIOD->OSPEEDR = 0xf3ff0f0f;
/* Configure PDx pins Output type to push-pull */
GPIOD->OTYPER = 0x00000000;
/* No pull-up, pull-down for PDx pins */
GPIOD->PUPDR = 0x00000000;
/* Connect PEx pins to FSMC Alternate function */
GPIOE->AFR[0] = 0xc00000cc;
GPIOE->AFR[1] = 0xcccccccc;
/* Configure PEx pins in Alternate function mode */
GPIOE->MODER = 0xaaaa800a;
/* Configure PEx pins speed to 100 MHz */
GPIOE->OSPEEDR = 0xffffc00f;
/* Configure PEx pins Output type to push-pull */
GPIOE->OTYPER = 0x00000000;
/* No pull-up, pull-down for PEx pins */
GPIOE->PUPDR = 0x00000000;
/* Connect PFx pins to FSMC Alternate function */
GPIOF->AFR[0] = 0x00cccccc;
GPIOF->AFR[1] = 0xcccc0000;
/* Configure PFx pins in Alternate function mode */
GPIOF->MODER = 0xaa000aaa;
/* Configure PFx pins speed to 100 MHz */
GPIOF->OSPEEDR = 0xff000fff;
/* Configure PFx pins Output type to push-pull */
GPIOF->OTYPER = 0x00000000;
/* No pull-up, pull-down for PFx pins */
GPIOF->PUPDR = 0x00000000;
/* Connect PGx pins to FSMC Alternate function */
GPIOG->AFR[0] = 0x00cccccc;
GPIOG->AFR[1] = 0x000000c0;
/* Configure PGx pins in Alternate function mode */
GPIOG->MODER = 0x00080aaa;
/* Configure PGx pins speed to 100 MHz */
GPIOG->OSPEEDR = 0x000c0fff;
/* Configure PGx pins Output type to push-pull */
GPIOG->OTYPER = 0x00000000;
/* No pull-up, pull-down for PGx pins */
GPIOG->PUPDR = 0x00000000;
/*-- FSMC Configuration ------------------------------------------------------*/
/* Enable the FSMC interface clock */
RCC->AHB3ENR = 0x00000001;
/* Configure and enable Bank1_SRAM2 */
FSMC_Bank1->BTCR[2] = 0x00001015;
FSMC_Bank1->BTCR[3] = 0x00010400;
FSMC_Bank1E->BWTR[2] = 0x0fffffff;
/*
Bank1_SRAM2 is configured as follow:
p.FSMC_AddressSetupTime = 0;
p.FSMC_AddressHoldTime = 0;
p.FSMC_DataSetupTime = 4;
p.FSMC_BusTurnAroundDuration = 1;
p.FSMC_CLKDivision = 0;
p.FSMC_DataLatency = 0;
p.FSMC_AccessMode = FSMC_AccessMode_A;
FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM2;
FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;
FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_PSRAM;
FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b;
FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_AsynchronousWait = FSMC_AsynchronousWait_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState;
FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;
FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;
FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p;
FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;
*/
}
#endif /* DATA_IN_ExtSRAM */
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,274 +0,0 @@
/**
******************************************************************************
* @file ADC/DualADC_Interleaved_DMAmode3/main.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main program body
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
#include "stm322xg_eval.h"
#include "stm322xg_eval_lcd.h"
#include <stdio.h>
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup ADC_DualADC_Interleaved_DMAmode3
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* used to display the ADC converted value on LCD */
#define PRINT_ON_LCD
/* if you are not using the LCD, you can monitor the converted values by adding
the variable "ADCDualConvertedValue" to the debugger watch window */
#define ADC_CDR_ADDRESS ((uint32_t)0x40012308)
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
__IO uint16_t ADCDualConvertedValue;
ADC_InitTypeDef ADC_InitStructure;
ADC_CommonInitTypeDef ADC_CommonInitStructure;
DMA_InitTypeDef DMA_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
/* Private function prototypes -----------------------------------------------*/
#ifdef PRINT_ON_LCD
void Display_Init(void);
void Display(void);
#endif /* PRINT_ON_LCD */
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f2xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f2xx.c file
*/
#ifdef PRINT_ON_LCD
/* LCD Display init */
Display_Init();
#endif /* PRINT_ON_LCD */
/******************************************************************************/
/* ADCs interface clock, pin and DMA configuration */
/******************************************************************************/
/* Enable peripheral clocks */
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2 | RCC_AHB1Periph_GPIOC, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1 | RCC_APB2Periph_ADC2, ENABLE);
/* Configure ADC Channel 12 pin as analog input */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;
GPIO_Init(GPIOC, &GPIO_InitStructure);
/* DMA2 Stream0 channel0 configuration */
DMA_InitStructure.DMA_Channel = DMA_Channel_0;
DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)ADC_CDR_ADDRESS;
DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)&ADCDualConvertedValue;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
DMA_InitStructure.DMA_BufferSize = 1;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Disable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
DMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Disable;
DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_HalfFull;
DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
DMA_Init(DMA2_Stream0, &DMA_InitStructure);
/* DMA2_Stream0 enable */
DMA_Cmd(DMA2_Stream0, ENABLE);
/******************************************************************************/
/* ADCs configuration: double interleaved with 6cycles delay to reach 5Msps */
/******************************************************************************/
/* ADC Common configuration *************************************************/
ADC_CommonInitStructure.ADC_Mode = ADC_DualMode_Interl;
ADC_CommonInitStructure.ADC_TwoSamplingDelay = ADC_TwoSamplingDelay_6Cycles;
ADC_CommonInitStructure.ADC_DMAAccessMode = ADC_DMAAccessMode_3;
ADC_CommonInitStructure.ADC_Prescaler = ADC_Prescaler_Div2;
ADC_CommonInit(&ADC_CommonInitStructure);
/* DMA mode 3 is used in interleaved mode in 6-bit or 8-bit resolutions */
ADC_InitStructure.ADC_Resolution = ADC_Resolution_8b;
/* ADC1 regular channel 12 configuration ************************************/
ADC_InitStructure.ADC_ScanConvMode = DISABLE;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_T1_CC1;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfConversion = 1;
ADC_Init(ADC1, &ADC_InitStructure);
/* ADC1 regular channel12 configuration */
ADC_RegularChannelConfig(ADC1, ADC_Channel_12, 1, ADC_SampleTime_3Cycles);
/* ADC2 regular channel 12 configuration ************************************/
ADC_Init(ADC2, &ADC_InitStructure);
/* ADC2 regular channel12 configuration */
ADC_RegularChannelConfig(ADC2, ADC_Channel_12, 1, ADC_SampleTime_3Cycles);
/* Enable DMA request after last transfer (multi-ADC mode) ******************/
ADC_MultiModeDMARequestAfterLastTransferCmd(ENABLE);
/* Enable ADC1 **************************************************************/
ADC_Cmd(ADC1, ENABLE);
/* Enable ADC2 **************************************************************/
ADC_Cmd(ADC2, ENABLE);
/* Start ADC1 Software Conversion */
ADC_SoftwareStartConv(ADC1);
while (1)
{
#ifdef PRINT_ON_LCD
/* Display ADCs converted values on LCD */
Display();
#endif /* PRINT_ON_LCD */
}
}
#ifdef PRINT_ON_LCD
/**
* @brief Display ADCs converted values on LCD
* @param None
* @retval None
*/
void Display(void)
{
uint32_t Voltage =0, mVoltage=0;
uint8_t text[50];
__IO uint32_t ADC1ConvertedVoltage;
__IO uint32_t ADC2ConvertedVoltage;
__IO uint8_t ADC1ConvertedValue;
__IO uint8_t ADC2ConvertedValue;
ADC1ConvertedValue = (ADCDualConvertedValue & 0x00FF);
ADC1ConvertedVoltage = ADC1ConvertedValue *3300/0xFF;
Voltage = (ADC1ConvertedVoltage)/1000;
mVoltage = (ADC1ConvertedVoltage%1000)/100;
sprintf((char*)text," ADC1 = %d,%d V ",Voltage,mVoltage);
LCD_DisplayStringLine(LINE(6),text);
ADC2ConvertedValue = (ADCDualConvertedValue >>8);
ADC2ConvertedVoltage = ADC2ConvertedValue *3300/0xFF;
Voltage=ADC2ConvertedVoltage/1000;
mVoltage = (ADC2ConvertedVoltage%1000)/100;
sprintf((char*)text," ADC2 = %d,%d V ",Voltage,mVoltage);
LCD_DisplayStringLine(LINE(7),text);
}
/**
* @brief Display Init (LCD)
* @param None
* @retval None
*/
void Display_Init(void)
{
/* Initialize the LCD */
STM322xG_LCD_Init();
/* Clear the LCD */
LCD_Clear(White);
/* Set the LCD Text size */
LCD_SetFont(&Font8x12);
/* Set the LCD Back Color and Text Color*/
LCD_SetBackColor(Blue);
LCD_SetTextColor(White);
LCD_DisplayStringLine(LINE(0x13), " Dual ADC Interleaved DMA mode3 example ");
/* Set the LCD Text size */
LCD_SetFont(&Font16x24);
LCD_DisplayStringLine(LINE(0), "ADC Ch12 Conv 5Msps ");
/* Set the LCD Back Color and Text Color*/
LCD_SetBackColor(White);
LCD_SetTextColor(Blue);
LCD_DisplayStringLine(LINE(2)," Connect voltage to ");
LCD_DisplayStringLine(LINE(3)," ADC Ch12 (PC.02) ");
}
#endif /* PRINT_ON_LCD */
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,93 +0,0 @@
/**
@page DualADC_Interleaved_DMAmode3 Use ADC1 and ADC2 in Dual interleaved mode and DMA mode3
@verbatim
******************** (C) COPYRIGHT 2012 STMicroelectronics *******************
* @file ADC/DualADC_Interleaved_DMAmode3/readme.txt
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Description of the Dual interleaved mode and DMA mode3 Example
******************************************************************************
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
@endverbatim
@par Example Description
This example provides a short description of how to use the ADC peripheral to
convert a regular channel in Dual interleaved mode using DMA in mode 3 with 5Msps.
DMA mode 3 is used in interleaved mode in 6-bit and 8-bit resolutions.
The Dual interleaved delay is configured 6 ADC clk cycles.
On each DMA request (two data items are available) two bytes representing two
ADC-converted data items are transferred as a half word.
The data transfer order is similar to that of the DMA mode 2.
A DMA request is generated each time 2 data items are available
1st request: ADC_CDR[15:0] = (ADC2_DR[7:0] << 8) | ADC1_DR[7:0]
2nd request: ADC_CDR[15:0] = (ADC2_DR[7:0] << 8) | ADC1_DR[7:0]
The ADC1 and ADC2 are configured to convert ADC Channel 12, with conversion
triggered by software.
By this way, ADC channel 12 is converted each 6 cycles.
In this example, the system clock is 120MHz, APB2 =60MHz and ADC clock = APB2 /2.
Since ADCCLK= 30MHz and Conversion rate = 6 cycle
==> Conversion Time = 30M/6cyc = 5Msps.
@note Refer to "simulation.xls" file to have the diagram simulation of the example.
@par Directory contents
- ADC/DualADC_Interleaved_DMAmode3/system_stm32f2xx.c STM32F2xx system clock configuration file
- ADC/DualADC_Interleaved_DMAmode3/stm32f2xx_conf.h Library Configuration file
- ADC/DualADC_Interleaved_DMAmode3/stm32f2xx_it.h Interrupt handlers header file
- ADC/DualADC_Interleaved_DMAmode3/stm32f2xx_it.c Interrupt handlers
- ADC/DualADC_Interleaved_DMAmode3/main.c Main program
@note The "system_stm32f2xx.c" is generated by an automatic clock configuration
tool and can be easily customized to your own configuration.
To select different clock setup, use the "STM32F2xx_Clock_Configuration_V1.0.0.xls"
provided with the AN3362 package available on <a href="http://www.st.com/internet/mcu/family/141.jsp"> ST Microcontrollers </a>
@par Hardware and Software environment
- This example runs on STM32F2xx Devices.
- This example has been tested with STM322xG-EVAL RevB and can be easily tailored
to any other development board
- STM322xG-EVAL Set-up
- Connect PC.2 to a power supply (do not forget to connect the power supply
GND to the EVAL board GND)
@par How to use it ?
In order to make the program work, you must do the following :
- Copy all source files from this example folder to the template folder under
Project\STM32F2xx_StdPeriph_Template
- Open your preferred toolchain
- Rebuild all files and load your image into target memory
- Run the example
* <h3><center>&copy; COPYRIGHT STMicroelectronics</center></h3>
*/
@@ -1,94 +0,0 @@
/**
******************************************************************************
* @file ADC/DualADC_Interleaved_DMAmode3/stm32f2xx_conf.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Library configuration file.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_CONF_H
#define __STM32F2xx_CONF_H
/* Includes ------------------------------------------------------------------*/
/* Uncomment the line below to enable peripheral header file inclusion */
#include "stm32f2xx_adc.h"
#include "stm32f2xx_can.h"
#include "stm32f2xx_crc.h"
#include "stm32f2xx_cryp.h"
#include "stm32f2xx_dac.h"
#include "stm32f2xx_dbgmcu.h"
#include "stm32f2xx_dcmi.h"
#include "stm32f2xx_dma.h"
#include "stm32f2xx_exti.h"
#include "stm32f2xx_flash.h"
#include "stm32f2xx_fsmc.h"
#include "stm32f2xx_hash.h"
#include "stm32f2xx_gpio.h"
#include "stm32f2xx_i2c.h"
#include "stm32f2xx_iwdg.h"
#include "stm32f2xx_pwr.h"
#include "stm32f2xx_rcc.h"
#include "stm32f2xx_rng.h"
#include "stm32f2xx_rtc.h"
#include "stm32f2xx_sdio.h"
#include "stm32f2xx_spi.h"
#include "stm32f2xx_syscfg.h"
#include "stm32f2xx_tim.h"
#include "stm32f2xx_usart.h"
#include "stm32f2xx_wwdg.h"
#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* If an external clock source is used, then the value of the following define
should be set to the value of the external clock source, else, if no external
clock is used, keep this define commented */
/*#define I2S_EXTERNAL_CLOCK_VAL 12288000 */ /* Value of the external clock in Hz */
/* Uncomment the line below to expanse the "assert_param" macro in the
Standard Peripheral Library drivers code */
/* #define USE_FULL_ASSERT 1 */
/* Exported macro ------------------------------------------------------------*/
#ifdef USE_FULL_ASSERT
/**
* @brief The assert_param macro is used for function's parameters check.
* @param expr: If expr is false, it calls assert_failed function
* which reports the name of the source file and the source
* line number of the call that failed.
* If expr is true, it returns no value.
* @retval None
*/
#define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__))
/* Exported functions ------------------------------------------------------- */
void assert_failed(uint8_t* file, uint32_t line);
#else
#define assert_param(expr) ((void)0)
#endif /* USE_FULL_ASSERT */
#endif /* __STM32F2xx_CONF_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,174 +0,0 @@
/**
******************************************************************************
* @file ADC/DualADC_Interleaved_DMAmode3/stm32f2xx_it.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main Interrupt Service Routines.
* This file provides template for all exceptions handler and
* peripherals interrupt service routine.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx_it.h"
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup ADC_DualADC_Interleaved_DMAmode3
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/******************************************************************************/
/* Cortex-M3 Processor Exceptions Handlers */
/******************************************************************************/
/**
* @brief This function handles NMI exception.
* @param None
* @retval None
*/
void NMI_Handler(void)
{
}
/**
* @brief This function handles Hard Fault exception.
* @param None
* @retval None
*/
void HardFault_Handler(void)
{
/* Go to infinite loop when Hard Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Memory Manage exception.
* @param None
* @retval None
*/
void MemManage_Handler(void)
{
/* Go to infinite loop when Memory Manage exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Bus Fault exception.
* @param None
* @retval None
*/
void BusFault_Handler(void)
{
/* Go to infinite loop when Bus Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Usage Fault exception.
* @param None
* @retval None
*/
void UsageFault_Handler(void)
{
/* Go to infinite loop when Usage Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles SVCall exception.
* @param None
* @retval None
*/
void SVC_Handler(void)
{
}
/**
* @brief This function handles Debug Monitor exception.
* @param None
* @retval None
*/
void DebugMon_Handler(void)
{
}
/**
* @brief This function handles PendSVC exception.
* @param None
* @retval None
*/
void PendSV_Handler(void)
{
}
/**
* @brief This function handles SysTick Handler.
* @param None
* @retval None
*/
void SysTick_Handler(void)
{
}
/******************************************************************************/
/* STM32F2xx Peripherals Interrupt Handlers */
/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */
/* available peripheral interrupt handler's name please refer to the startup */
/* file (startup_stm32f2xx.s). */
/******************************************************************************/
/**
* @brief This function handles PPP interrupt request.
* @param None
* @retval None
*/
/*void PPP_IRQHandler(void)
{
}*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,60 +0,0 @@
/**
******************************************************************************
* @file ADC/DualADC_Interleaved_DMAmode3/stm32f2xx_it.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief This file contains the headers of the interrupt handlers.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_IT_H
#define __STM32F2xx_IT_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
void NMI_Handler(void);
void HardFault_Handler(void);
void MemManage_Handler(void);
void BusFault_Handler(void);
void UsageFault_Handler(void);
void SVC_Handler(void);
void DebugMon_Handler(void);
void PendSV_Handler(void);
void SysTick_Handler(void);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F2xx_IT_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,542 +0,0 @@
/**
******************************************************************************
* @file system_stm32f2xx.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File.
* This file contains the system clock configuration for STM32F2xx devices,
* and is generated by the clock configuration tool
* "STM32f2xx_Clock_Configuration_V1.0.0.xls"
*
* 1. This file provides two functions and one global variable to be called from
* user application:
* - SystemInit(): Setups the system clock (System clock source, PLL Multiplier
* and Divider factors, AHB/APBx prescalers and Flash settings),
* depending on the configuration made in the clock xls tool.
* This function is called at startup just after reset and
* before branch to main program. This call is made inside
* the "startup_stm32f2xx.s" file.
*
* - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
* by the user application to setup the SysTick
* timer or configure other parameters.
*
* - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
* be called whenever the core clock is changed
* during program execution.
*
* 2. After each device reset the HSI (16 MHz) is used as system clock source.
* Then SystemInit() function is called, in "startup_stm32f2xx.s" file, to
* configure the system clock before to branch to main program.
*
* 3. If the system clock source selected by user fails to startup, the SystemInit()
* function will do nothing and HSI still used as system clock source. User can
* add some code to deal with this issue inside the SetSysClock() function.
*
* 4. The default value of HSE crystal is set to 25MHz, refer to "HSE_VALUE" define
* in "stm32f2xx.h" file. When HSE is used as system clock source, directly or
* through PLL, and you are using different crystal you have to adapt the HSE
* value to your own configuration.
*
* 5. This file configures the system clock as follows:
*=============================================================================
*=============================================================================
* Supported STM32F2xx device revision | Rev B and Y
*-----------------------------------------------------------------------------
* System Clock source | PLL (HSE)
*-----------------------------------------------------------------------------
* SYSCLK(Hz) | 120000000
*-----------------------------------------------------------------------------
* HCLK(Hz) | 120000000
*-----------------------------------------------------------------------------
* AHB Prescaler | 1
*-----------------------------------------------------------------------------
* APB1 Prescaler | 4
*-----------------------------------------------------------------------------
* APB2 Prescaler | 2
*-----------------------------------------------------------------------------
* HSE Frequency(Hz) | 25000000
*-----------------------------------------------------------------------------
* PLL_M | 25
*-----------------------------------------------------------------------------
* PLL_N | 240
*-----------------------------------------------------------------------------
* PLL_P | 2
*-----------------------------------------------------------------------------
* PLL_Q | 5
*-----------------------------------------------------------------------------
* PLLI2S_N | NA
*-----------------------------------------------------------------------------
* PLLI2S_R | NA
*-----------------------------------------------------------------------------
* I2S input clock | NA
*-----------------------------------------------------------------------------
* VDD(V) | 3.3
*-----------------------------------------------------------------------------
* Flash Latency(WS) | 3
*-----------------------------------------------------------------------------
* Prefetch Buffer | ON
*-----------------------------------------------------------------------------
* Instruction cache | ON
*-----------------------------------------------------------------------------
* Data cache | ON
*-----------------------------------------------------------------------------
* Require 48MHz for USB OTG FS, | Enabled
* SDIO and RNG clock |
*-----------------------------------------------------------------------------
*=============================================================================
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/** @addtogroup CMSIS
* @{
*/
/** @addtogroup stm32f2xx_system
* @{
*/
/** @addtogroup STM32F2xx_System_Private_Includes
* @{
*/
#include "stm32f2xx.h"
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Defines
* @{
*/
/*!< Uncomment the following line if you need to use external SRAM mounted
on STM322xG_EVAL board as data memory */
/* #define DATA_IN_ExtSRAM */
/*!< Uncomment the following line if you need to relocate your vector Table in
Internal SRAM. */
/* #define VECT_TAB_SRAM */
#define VECT_TAB_OFFSET 0x00 /*!< Vector Table base offset field.
This value must be a multiple of 0x200. */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N */
#define PLL_M 25
#define PLL_N 240
/* SYSCLK = PLL_VCO / PLL_P */
#define PLL_P 2
/* USB OTG FS, SDIO and RNG Clock = PLL_VCO / PLLQ */
#define PLL_Q 5
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Macros
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Variables
* @{
*/
uint32_t SystemCoreClock = 120000000;
__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_FunctionPrototypes
* @{
*/
static void SetSysClock(void);
#ifdef DATA_IN_ExtSRAM
static void SystemInit_ExtMemCtl(void);
#endif /* DATA_IN_ExtSRAM */
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Functions
* @{
*/
/**
* @brief Setup the microcontroller system
* Initialize the Embedded Flash Interface, the PLL and update the
* SystemFrequency variable.
* @param None
* @retval None
*/
void SystemInit(void)
{
/* Reset the RCC clock configuration to the default reset state ------------*/
/* Set HSION bit */
RCC->CR |= (uint32_t)0x00000001;
/* Reset CFGR register */
RCC->CFGR = 0x00000000;
/* Reset HSEON, CSSON and PLLON bits */
RCC->CR &= (uint32_t)0xFEF6FFFF;
/* Reset PLLCFGR register */
RCC->PLLCFGR = 0x24003010;
/* Reset HSEBYP bit */
RCC->CR &= (uint32_t)0xFFFBFFFF;
/* Disable all interrupts */
RCC->CIR = 0x00000000;
#ifdef DATA_IN_ExtSRAM
SystemInit_ExtMemCtl();
#endif /* DATA_IN_ExtSRAM */
/* Configure the System clock source, PLL Multiplier and Divider factors,
AHB/APBx prescalers and Flash settings ----------------------------------*/
SetSysClock();
/* Configure the Vector Table location add offset address ------------------*/
#ifdef VECT_TAB_SRAM
SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */
#else
SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */
#endif
}
/**
* @brief Update SystemCoreClock variable according to Clock Register Values.
* The SystemCoreClock variable contains the core clock (HCLK), it can
* be used by the user application to setup the SysTick timer or configure
* other parameters.
*
* @note Each time the core clock (HCLK) changes, this function must be called
* to update SystemCoreClock variable value. Otherwise, any configuration
* based on this variable will be incorrect.
*
* @note - The system frequency computed by this function is not the real
* frequency in the chip. It is calculated based on the predefined
* constant and the selected clock source:
*
* - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*)
*
* - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**)
*
* - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**)
* or HSI_VALUE(*) multiplied/divided by the PLL factors.
*
* (*) HSI_VALUE is a constant defined in stm32f2xx.h file (default value
* 16 MHz) but the real value may vary depending on the variations
* in voltage and temperature.
*
* (**) HSE_VALUE is a constant defined in stm32f2xx.h file (default value
* 25 MHz), user has to ensure that HSE_VALUE is same as the real
* frequency of the crystal used. Otherwise, this function may
* have wrong result.
*
* - The result of this function could be not correct when using fractional
* value for HSE crystal.
*
* @param None
* @retval None
*/
void SystemCoreClockUpdate(void)
{
uint32_t tmp = 0, pllvco = 0, pllp = 2, pllsource = 0, pllm = 2;
/* Get SYSCLK source -------------------------------------------------------*/
tmp = RCC->CFGR & RCC_CFGR_SWS;
switch (tmp)
{
case 0x00: /* HSI used as system clock source */
SystemCoreClock = HSI_VALUE;
break;
case 0x04: /* HSE used as system clock source */
SystemCoreClock = HSE_VALUE;
break;
case 0x08: /* PLL used as system clock source */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N
SYSCLK = PLL_VCO / PLL_P
*/
pllsource = (RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) >> 22;
pllm = RCC->PLLCFGR & RCC_PLLCFGR_PLLM;
if (pllsource != 0)
{
/* HSE used as PLL clock source */
pllvco = (HSE_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
}
else
{
/* HSI used as PLL clock source */
pllvco = (HSI_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
}
pllp = (((RCC->PLLCFGR & RCC_PLLCFGR_PLLP) >>16) + 1 ) *2;
SystemCoreClock = pllvco/pllp;
break;
default:
SystemCoreClock = HSI_VALUE;
break;
}
/* Compute HCLK frequency --------------------------------------------------*/
/* Get HCLK prescaler */
tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)];
/* HCLK frequency */
SystemCoreClock >>= tmp;
}
/**
* @brief Configures the System clock source, PLL Multiplier and Divider factors,
* AHB/APBx prescalers and Flash settings
* @Note This function should be called only once the RCC clock configuration
* is reset to the default reset state (done in SystemInit() function).
* @param None
* @retval None
*/
static void SetSysClock(void)
{
/******************************************************************************/
/* PLL (clocked by HSE) used as System clock source */
/******************************************************************************/
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
/* Enable HSE */
RCC->CR |= ((uint32_t)RCC_CR_HSEON);
/* Wait till HSE is ready and if Time out is reached exit */
do
{
HSEStatus = RCC->CR & RCC_CR_HSERDY;
StartUpCounter++;
} while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
if ((RCC->CR & RCC_CR_HSERDY) != RESET)
{
HSEStatus = (uint32_t)0x01;
}
else
{
HSEStatus = (uint32_t)0x00;
}
if (HSEStatus == (uint32_t)0x01)
{
/* HCLK = SYSCLK / 1*/
RCC->CFGR |= RCC_CFGR_HPRE_DIV1;
/* PCLK2 = HCLK / 2*/
RCC->CFGR |= RCC_CFGR_PPRE2_DIV2;
/* PCLK1 = HCLK / 4*/
RCC->CFGR |= RCC_CFGR_PPRE1_DIV4;
/* Configure the main PLL */
RCC->PLLCFGR = PLL_M | (PLL_N << 6) | (((PLL_P >> 1) -1) << 16) |
(RCC_PLLCFGR_PLLSRC_HSE) | (PLL_Q << 24);
/* Enable the main PLL */
RCC->CR |= RCC_CR_PLLON;
/* Wait till the main PLL is ready */
while((RCC->CR & RCC_CR_PLLRDY) == 0)
{
}
/* Configure Flash prefetch, Instruction cache, Data cache and wait state */
FLASH->ACR = FLASH_ACR_PRFTEN | FLASH_ACR_ICEN | FLASH_ACR_DCEN | FLASH_ACR_LATENCY_3WS;
/* Select the main PLL as system clock source */
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW));
RCC->CFGR |= RCC_CFGR_SW_PLL;
/* Wait till the main PLL is used as system clock source */
while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS ) != RCC_CFGR_SWS_PLL);
{
}
}
else
{ /* If HSE fails to start-up, the application will have wrong clock
configuration. User can add here some code to deal with this error */
}
}
/**
* @brief Setup the external memory controller. Called in startup_stm32f2xx.s
* before jump to __main
* @param None
* @retval None
*/
#ifdef DATA_IN_ExtSRAM
/**
* @brief Setup the external memory controller.
* Called in startup_stm32f2xx.s before jump to main.
* This function configures the external SRAM mounted on STM322xG_EVAL board
* This SRAM will be used as program data memory (including heap and stack).
* @param None
* @retval None
*/
void SystemInit_ExtMemCtl(void)
{
/*-- GPIOs Configuration -----------------------------------------------------*/
/*
+-------------------+--------------------+------------------+------------------+
+ SRAM pins assignment +
+-------------------+--------------------+------------------+------------------+
| PD0 <-> FSMC_D2 | PE0 <-> FSMC_NBL0 | PF0 <-> FSMC_A0 | PG0 <-> FSMC_A10 |
| PD1 <-> FSMC_D3 | PE1 <-> FSMC_NBL1 | PF1 <-> FSMC_A1 | PG1 <-> FSMC_A11 |
| PD4 <-> FSMC_NOE | PE7 <-> FSMC_D4 | PF2 <-> FSMC_A2 | PG2 <-> FSMC_A12 |
| PD5 <-> FSMC_NWE | PE8 <-> FSMC_D5 | PF3 <-> FSMC_A3 | PG3 <-> FSMC_A13 |
| PD8 <-> FSMC_D13 | PE9 <-> FSMC_D6 | PF4 <-> FSMC_A4 | PG4 <-> FSMC_A14 |
| PD9 <-> FSMC_D14 | PE10 <-> FSMC_D7 | PF5 <-> FSMC_A5 | PG5 <-> FSMC_A15 |
| PD10 <-> FSMC_D15 | PE11 <-> FSMC_D8 | PF12 <-> FSMC_A6 | PG9 <-> FSMC_NE2 |
| PD11 <-> FSMC_A16 | PE12 <-> FSMC_D9 | PF13 <-> FSMC_A7 |------------------+
| PD12 <-> FSMC_A17 | PE13 <-> FSMC_D10 | PF14 <-> FSMC_A8 |
| PD14 <-> FSMC_D0 | PE14 <-> FSMC_D11 | PF15 <-> FSMC_A9 |
| PD15 <-> FSMC_D1 | PE15 <-> FSMC_D12 |------------------+
+-------------------+--------------------+
*/
/* Enable GPIOD, GPIOE, GPIOF and GPIOG interface clock */
RCC->AHB1ENR = 0x00000078;
/* Connect PDx pins to FSMC Alternate function */
GPIOD->AFR[0] = 0x00cc00cc;
GPIOD->AFR[1] = 0xcc0ccccc;
/* Configure PDx pins in Alternate function mode */
GPIOD->MODER = 0xa2aa0a0a;
/* Configure PDx pins speed to 100 MHz */
GPIOD->OSPEEDR = 0xf3ff0f0f;
/* Configure PDx pins Output type to push-pull */
GPIOD->OTYPER = 0x00000000;
/* No pull-up, pull-down for PDx pins */
GPIOD->PUPDR = 0x00000000;
/* Connect PEx pins to FSMC Alternate function */
GPIOE->AFR[0] = 0xc00000cc;
GPIOE->AFR[1] = 0xcccccccc;
/* Configure PEx pins in Alternate function mode */
GPIOE->MODER = 0xaaaa800a;
/* Configure PEx pins speed to 100 MHz */
GPIOE->OSPEEDR = 0xffffc00f;
/* Configure PEx pins Output type to push-pull */
GPIOE->OTYPER = 0x00000000;
/* No pull-up, pull-down for PEx pins */
GPIOE->PUPDR = 0x00000000;
/* Connect PFx pins to FSMC Alternate function */
GPIOF->AFR[0] = 0x00cccccc;
GPIOF->AFR[1] = 0xcccc0000;
/* Configure PFx pins in Alternate function mode */
GPIOF->MODER = 0xaa000aaa;
/* Configure PFx pins speed to 100 MHz */
GPIOF->OSPEEDR = 0xff000fff;
/* Configure PFx pins Output type to push-pull */
GPIOF->OTYPER = 0x00000000;
/* No pull-up, pull-down for PFx pins */
GPIOF->PUPDR = 0x00000000;
/* Connect PGx pins to FSMC Alternate function */
GPIOG->AFR[0] = 0x00cccccc;
GPIOG->AFR[1] = 0x000000c0;
/* Configure PGx pins in Alternate function mode */
GPIOG->MODER = 0x00080aaa;
/* Configure PGx pins speed to 100 MHz */
GPIOG->OSPEEDR = 0x000c0fff;
/* Configure PGx pins Output type to push-pull */
GPIOG->OTYPER = 0x00000000;
/* No pull-up, pull-down for PGx pins */
GPIOG->PUPDR = 0x00000000;
/*-- FSMC Configuration ------------------------------------------------------*/
/* Enable the FSMC interface clock */
RCC->AHB3ENR = 0x00000001;
/* Configure and enable Bank1_SRAM2 */
FSMC_Bank1->BTCR[2] = 0x00001015;
FSMC_Bank1->BTCR[3] = 0x00010400;
FSMC_Bank1E->BWTR[2] = 0x0fffffff;
/*
Bank1_SRAM2 is configured as follow:
p.FSMC_AddressSetupTime = 0;
p.FSMC_AddressHoldTime = 0;
p.FSMC_DataSetupTime = 4;
p.FSMC_BusTurnAroundDuration = 1;
p.FSMC_CLKDivision = 0;
p.FSMC_DataLatency = 0;
p.FSMC_AccessMode = FSMC_AccessMode_A;
FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM2;
FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;
FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_PSRAM;
FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b;
FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_AsynchronousWait = FSMC_AsynchronousWait_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState;
FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;
FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;
FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p;
FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;
*/
}
#endif /* DATA_IN_ExtSRAM */
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,234 +0,0 @@
/**
******************************************************************************
* @file ADC/DualADC_RegulSimu_DMAmode1/main.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main program body
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup ADC_DualADC_RegulSimu_DMAmode1
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define ADC_CCR_ADDRESS ((uint32_t)0x40012308)
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
__IO uint16_t ADCDualConvertedValue[4];
/* Private function prototypes -----------------------------------------------*/
void DMA_Config(void);
void GPIO_Config(void);
void ADC1_CH10_CH11_Config(void);
void ADC2_CH11_CH12_Config(void);
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
ADC_CommonInitTypeDef ADC_CommonInitStructure;
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f2xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f2xx.c file
*/
/* Enable peripheral clocks *************************************************/
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2 | RCC_AHB1Periph_GPIOC, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1|RCC_APB2Periph_ADC2, ENABLE);
/* DMA2 Stream0 channel0 configuration **************************************/
DMA_Config();
/* ADCs configuration ------------------------------------------------------*/
/* Configure ADC Channel10, 11, 12 pin as analog input */
GPIO_Config();
/* ADC Common Init */
ADC_CommonInitStructure.ADC_Mode = ADC_DualMode_RegSimult;
ADC_CommonInitStructure.ADC_Prescaler = ADC_Prescaler_Div2;
ADC_CommonInitStructure.ADC_DMAAccessMode = ADC_DMAAccessMode_1;
ADC_CommonInitStructure.ADC_TwoSamplingDelay = ADC_TwoSamplingDelay_5Cycles;
ADC_CommonInit(&ADC_CommonInitStructure);
/* ADC1 regular channels 10, 11 configuration */
ADC1_CH10_CH11_Config();
/* ADC2 regular channels 11, 12 configuration */
ADC2_CH11_CH12_Config();
/* Enable DMA request after last transfer (Multi-ADC mode) */
ADC_MultiModeDMARequestAfterLastTransferCmd(ENABLE);
/* Enable ADC1 */
ADC_Cmd(ADC1, ENABLE);
/* Enable ADC2 */
ADC_Cmd(ADC2, ENABLE);
/* Start ADC1 Software Conversion */
ADC_SoftwareStartConv(ADC1);
while (1)
{
}
}
/**
* @brief ADC1 regular channels 10 and 11 configuration
* @param None
* @retval None
*/
void ADC1_CH10_CH11_Config(void)
{
ADC_InitTypeDef ADC_InitStructure;
ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
ADC_InitStructure.ADC_ScanConvMode = ENABLE;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_T1_CC1;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfConversion = 2;
ADC_Init(ADC1, &ADC_InitStructure);
/* ADC1 regular channels 10, 11 configuration */
ADC_RegularChannelConfig(ADC1, ADC_Channel_10, 1, ADC_SampleTime_3Cycles);
ADC_RegularChannelConfig(ADC1, ADC_Channel_11, 2, ADC_SampleTime_3Cycles);
}
/**
* @brief ADC2 regular channels 11, 12 configuration
* @param None
* @retval None
*/
void ADC2_CH11_CH12_Config(void)
{
ADC_InitTypeDef ADC_InitStructure;
ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
ADC_InitStructure.ADC_ScanConvMode = ENABLE;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_T1_CC1;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfConversion = 2;
ADC_Init(ADC2, &ADC_InitStructure);
/* ADC2 regular channels 11, 12 configuration */
ADC_RegularChannelConfig(ADC2, ADC_Channel_11, 1, ADC_SampleTime_3Cycles);
ADC_RegularChannelConfig(ADC2, ADC_Channel_12, 2, ADC_SampleTime_3Cycles);
}
/**
* @brief DMA Configuration
* @param None
* @retval None
*/
void DMA_Config(void)
{
DMA_InitTypeDef DMA_InitStructure;
DMA_InitStructure.DMA_Channel = DMA_Channel_0;
DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)&ADCDualConvertedValue;
DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)ADC_CCR_ADDRESS;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
DMA_InitStructure.DMA_BufferSize = 4;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
DMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Enable;
DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_HalfFull;
DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
DMA_Init(DMA2_Stream0, &DMA_InitStructure);
/* DMA2_Stream0 enable */
DMA_Cmd(DMA2_Stream0, ENABLE);
}
/**
* @brief Configure ADC Channels 10, 11, 12 pins as analog inputs
* @param None
* @retval None
*/
void GPIO_Config(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* ADC Channel 10 -> PC0
ADC Channel 11 -> PC1
ADC Channel 12 -> PC2
*/
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;
GPIO_Init(GPIOC, &GPIO_InitStructure);
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,94 +0,0 @@
/**
@page DualADC_RegulSimu_DMAmode1 Use ADC1 and ADC2 in Dual regular simultaneous mode and DMA mode1
@verbatim
******************** (C) COPYRIGHT 2012 STMicroelectronics *******************
* @file ADC/DualADC_RegulSimu_DMAmode1/readme.txt
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Description of the Dual regular simultaneous mode and DMA mode1
* Example
******************************************************************************
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
@endverbatim
@par Example Description
This example provides a short description of how to use the ADC peripheral to
convert regular channels simultaneously in dual mode using DMA in mode 1.
Regular simultaneous mode is performed on a regular group of channels.
In Dual ADC mode, ADC1 data are transferred on the first request, ADC2 data are
transferred on the second request and so on.
On each DMA request (one data item is available), a half-word representing an
ADC-converted data item is transferred.
The conversion is triggered by software.
The ADC1 is configured to convert ADC Channel 10 and 11.
The ADC2 is configured to convert ADC Channel 11 and 12.
Note: the sequence length must be the same for both ADCs
In this example, the system clock is 120MHz, APB2 =60MHz and ADC clock = APB2 /2.
So ADCCLK= 30MHz
Conversion rate of channel 10 and 12 = 30 cycles => Conversion Time = 30M/30cyc = 1Msps.
Conversion rate of channel 11 = 15 cycles => Conversion Time = 30M/15cyc = 2Msps.
@note Refer to "simulation.xls" file to have the diagram simulation of the example.
@par Directory contents
- ADC/DualADC_RegulSimu_DMAmode1/system_stm32f2xx.c STM32F2xx system clock configuration file
- ADC/DualADC_RegulSimu_DMAmode1/stm32f2xx_conf.h Library Configuration file
- ADC/DualADC_RegulSimu_DMAmode1/stm32f2xx_it.h Interrupt handlers header file
- ADC/DualADC_RegulSimu_DMAmode1/stm32f2xx_it.c Interrupt handlers
- ADC/DualADC_RegulSimu_DMAmode1/main.c Main program
@note The "system_stm32f2xx.c" is generated by an automatic clock configuration
tool and can be easily customized to your own configuration.
To select different clock setup, use the "STM32F2xx_Clock_Configuration_V1.0.0.xls"
provided with the AN3362 package available on <a href="http://www.st.com/internet/mcu/family/141.jsp"> ST Microcontrollers </a>
@par Hardware and Software environment
- This example runs on STM32F2xx Devices.
- This example has been tested with STM322xG-EVAL RevB and can be easily tailored
to any other development board.
- STM322xG-EVAL Set-up
- Connect PC.0, PC.1 and PC.2 to a power supply (do not forget to connect the
power supply GND to the EVAL board GND)
@par How to use it ?
In order to make the program work, you must do the following :
- Copy all source files from this example folder to the template folder under
Project\STM32F2xx_StdPeriph_Template
- Open your preferred toolchain
- Rebuild all files and load your image into target memory
- Run the example
* <h3><center>&copy; COPYRIGHT STMicroelectronics</center></h3>
*/
@@ -1,94 +0,0 @@
/**
******************************************************************************
* @file ADC/DualADC_RegulSimu_DMAmode1/stm32f2xx_conf.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Library configuration file.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_CONF_H
#define __STM32F2xx_CONF_H
/* Includes ------------------------------------------------------------------*/
/* Uncomment the line below to enable peripheral header file inclusion */
#include "stm32f2xx_adc.h"
#include "stm32f2xx_can.h"
#include "stm32f2xx_crc.h"
#include "stm32f2xx_cryp.h"
#include "stm32f2xx_dac.h"
#include "stm32f2xx_dbgmcu.h"
#include "stm32f2xx_dcmi.h"
#include "stm32f2xx_dma.h"
#include "stm32f2xx_exti.h"
#include "stm32f2xx_flash.h"
#include "stm32f2xx_fsmc.h"
#include "stm32f2xx_hash.h"
#include "stm32f2xx_gpio.h"
#include "stm32f2xx_i2c.h"
#include "stm32f2xx_iwdg.h"
#include "stm32f2xx_pwr.h"
#include "stm32f2xx_rcc.h"
#include "stm32f2xx_rng.h"
#include "stm32f2xx_rtc.h"
#include "stm32f2xx_sdio.h"
#include "stm32f2xx_spi.h"
#include "stm32f2xx_syscfg.h"
#include "stm32f2xx_tim.h"
#include "stm32f2xx_usart.h"
#include "stm32f2xx_wwdg.h"
#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* If an external clock source is used, then the value of the following define
should be set to the value of the external clock source, else, if no external
clock is used, keep this define commented */
/*#define I2S_EXTERNAL_CLOCK_VAL 12288000 */ /* Value of the external clock in Hz */
/* Uncomment the line below to expanse the "assert_param" macro in the
Standard Peripheral Library drivers code */
/* #define USE_FULL_ASSERT 1 */
/* Exported macro ------------------------------------------------------------*/
#ifdef USE_FULL_ASSERT
/**
* @brief The assert_param macro is used for function's parameters check.
* @param expr: If expr is false, it calls assert_failed function
* which reports the name of the source file and the source
* line number of the call that failed.
* If expr is true, it returns no value.
* @retval None
*/
#define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__))
/* Exported functions ------------------------------------------------------- */
void assert_failed(uint8_t* file, uint32_t line);
#else
#define assert_param(expr) ((void)0)
#endif /* USE_FULL_ASSERT */
#endif /* __STM32F2xx_CONF_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,173 +0,0 @@
/**
******************************************************************************
* @file ADC/DualADC_RegulSimu_DMAmode1/stm32f2xx_it.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main Interrupt Service Routines.
* This file provides template for all exceptions handler and
* peripherals interrupt service routine.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx_it.h"
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup ADC_DualADC_RegulSimu_DMAmode1
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/******************************************************************************/
/* Cortex-M3 Processor Exceptions Handlers */
/******************************************************************************/
/**
* @brief This function handles NMI exception.
* @param None
* @retval None
*/
void NMI_Handler(void)
{
}
/**
* @brief This function handles Hard Fault exception.
* @param None
* @retval None
*/
void HardFault_Handler(void)
{
/* Go to infinite loop when Hard Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Memory Manage exception.
* @param None
* @retval None
*/
void MemManage_Handler(void)
{
/* Go to infinite loop when Memory Manage exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Bus Fault exception.
* @param None
* @retval None
*/
void BusFault_Handler(void)
{
/* Go to infinite loop when Bus Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Usage Fault exception.
* @param None
* @retval None
*/
void UsageFault_Handler(void)
{
/* Go to infinite loop when Usage Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles SVCall exception.
* @param None
* @retval None
*/
void SVC_Handler(void)
{
}
/**
* @brief This function handles Debug Monitor exception.
* @param None
* @retval None
*/
void DebugMon_Handler(void)
{
}
/**
* @brief This function handles PendSVC exception.
* @param None
* @retval None
*/
void PendSV_Handler(void)
{
}
/**
* @brief This function handles SysTick Handler.
* @param None
* @retval None
*/
void SysTick_Handler(void)
{
}
/******************************************************************************/
/* STM32F2xx Peripherals Interrupt Handlers */
/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */
/* available peripheral interrupt handler's name please refer to the startup */
/* file (startup_stm32f2xx.s). */
/******************************************************************************/
/**
* @brief This function handles PPP interrupt request.
* @param None
* @retval None
*/
/*void PPP_IRQHandler(void)
{
}*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,60 +0,0 @@
/**
******************************************************************************
* @file ADC/DualADC_RegulSimu_DMAmode1/stm32f2xx_it.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief This file contains the headers of the interrupt handlers.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_IT_H
#define __STM32F2xx_IT_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
void NMI_Handler(void);
void HardFault_Handler(void);
void MemManage_Handler(void);
void BusFault_Handler(void);
void UsageFault_Handler(void);
void SVC_Handler(void);
void DebugMon_Handler(void);
void PendSV_Handler(void);
void SysTick_Handler(void);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F2xx_IT_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,542 +0,0 @@
/**
******************************************************************************
* @file system_stm32f2xx.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File.
* This file contains the system clock configuration for STM32F2xx devices,
* and is generated by the clock configuration tool
* "STM32f2xx_Clock_Configuration_V1.0.0.xls"
*
* 1. This file provides two functions and one global variable to be called from
* user application:
* - SystemInit(): Setups the system clock (System clock source, PLL Multiplier
* and Divider factors, AHB/APBx prescalers and Flash settings),
* depending on the configuration made in the clock xls tool.
* This function is called at startup just after reset and
* before branch to main program. This call is made inside
* the "startup_stm32f2xx.s" file.
*
* - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
* by the user application to setup the SysTick
* timer or configure other parameters.
*
* - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
* be called whenever the core clock is changed
* during program execution.
*
* 2. After each device reset the HSI (16 MHz) is used as system clock source.
* Then SystemInit() function is called, in "startup_stm32f2xx.s" file, to
* configure the system clock before to branch to main program.
*
* 3. If the system clock source selected by user fails to startup, the SystemInit()
* function will do nothing and HSI still used as system clock source. User can
* add some code to deal with this issue inside the SetSysClock() function.
*
* 4. The default value of HSE crystal is set to 25MHz, refer to "HSE_VALUE" define
* in "stm32f2xx.h" file. When HSE is used as system clock source, directly or
* through PLL, and you are using different crystal you have to adapt the HSE
* value to your own configuration.
*
* 5. This file configures the system clock as follows:
*=============================================================================
*=============================================================================
* Supported STM32F2xx device revision | Rev B and Y
*-----------------------------------------------------------------------------
* System Clock source | PLL (HSE)
*-----------------------------------------------------------------------------
* SYSCLK(Hz) | 120000000
*-----------------------------------------------------------------------------
* HCLK(Hz) | 120000000
*-----------------------------------------------------------------------------
* AHB Prescaler | 1
*-----------------------------------------------------------------------------
* APB1 Prescaler | 4
*-----------------------------------------------------------------------------
* APB2 Prescaler | 2
*-----------------------------------------------------------------------------
* HSE Frequency(Hz) | 25000000
*-----------------------------------------------------------------------------
* PLL_M | 25
*-----------------------------------------------------------------------------
* PLL_N | 240
*-----------------------------------------------------------------------------
* PLL_P | 2
*-----------------------------------------------------------------------------
* PLL_Q | 5
*-----------------------------------------------------------------------------
* PLLI2S_N | NA
*-----------------------------------------------------------------------------
* PLLI2S_R | NA
*-----------------------------------------------------------------------------
* I2S input clock | NA
*-----------------------------------------------------------------------------
* VDD(V) | 3.3
*-----------------------------------------------------------------------------
* Flash Latency(WS) | 3
*-----------------------------------------------------------------------------
* Prefetch Buffer | ON
*-----------------------------------------------------------------------------
* Instruction cache | ON
*-----------------------------------------------------------------------------
* Data cache | ON
*-----------------------------------------------------------------------------
* Require 48MHz for USB OTG FS, | Enabled
* SDIO and RNG clock |
*-----------------------------------------------------------------------------
*=============================================================================
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/** @addtogroup CMSIS
* @{
*/
/** @addtogroup stm32f2xx_system
* @{
*/
/** @addtogroup STM32F2xx_System_Private_Includes
* @{
*/
#include "stm32f2xx.h"
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Defines
* @{
*/
/*!< Uncomment the following line if you need to use external SRAM mounted
on STM322xG_EVAL board as data memory */
/* #define DATA_IN_ExtSRAM */
/*!< Uncomment the following line if you need to relocate your vector Table in
Internal SRAM. */
/* #define VECT_TAB_SRAM */
#define VECT_TAB_OFFSET 0x00 /*!< Vector Table base offset field.
This value must be a multiple of 0x200. */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N */
#define PLL_M 25
#define PLL_N 240
/* SYSCLK = PLL_VCO / PLL_P */
#define PLL_P 2
/* USB OTG FS, SDIO and RNG Clock = PLL_VCO / PLLQ */
#define PLL_Q 5
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Macros
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Variables
* @{
*/
uint32_t SystemCoreClock = 120000000;
__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_FunctionPrototypes
* @{
*/
static void SetSysClock(void);
#ifdef DATA_IN_ExtSRAM
static void SystemInit_ExtMemCtl(void);
#endif /* DATA_IN_ExtSRAM */
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Functions
* @{
*/
/**
* @brief Setup the microcontroller system
* Initialize the Embedded Flash Interface, the PLL and update the
* SystemFrequency variable.
* @param None
* @retval None
*/
void SystemInit(void)
{
/* Reset the RCC clock configuration to the default reset state ------------*/
/* Set HSION bit */
RCC->CR |= (uint32_t)0x00000001;
/* Reset CFGR register */
RCC->CFGR = 0x00000000;
/* Reset HSEON, CSSON and PLLON bits */
RCC->CR &= (uint32_t)0xFEF6FFFF;
/* Reset PLLCFGR register */
RCC->PLLCFGR = 0x24003010;
/* Reset HSEBYP bit */
RCC->CR &= (uint32_t)0xFFFBFFFF;
/* Disable all interrupts */
RCC->CIR = 0x00000000;
#ifdef DATA_IN_ExtSRAM
SystemInit_ExtMemCtl();
#endif /* DATA_IN_ExtSRAM */
/* Configure the System clock source, PLL Multiplier and Divider factors,
AHB/APBx prescalers and Flash settings ----------------------------------*/
SetSysClock();
/* Configure the Vector Table location add offset address ------------------*/
#ifdef VECT_TAB_SRAM
SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */
#else
SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */
#endif
}
/**
* @brief Update SystemCoreClock variable according to Clock Register Values.
* The SystemCoreClock variable contains the core clock (HCLK), it can
* be used by the user application to setup the SysTick timer or configure
* other parameters.
*
* @note Each time the core clock (HCLK) changes, this function must be called
* to update SystemCoreClock variable value. Otherwise, any configuration
* based on this variable will be incorrect.
*
* @note - The system frequency computed by this function is not the real
* frequency in the chip. It is calculated based on the predefined
* constant and the selected clock source:
*
* - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*)
*
* - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**)
*
* - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**)
* or HSI_VALUE(*) multiplied/divided by the PLL factors.
*
* (*) HSI_VALUE is a constant defined in stm32f2xx.h file (default value
* 16 MHz) but the real value may vary depending on the variations
* in voltage and temperature.
*
* (**) HSE_VALUE is a constant defined in stm32f2xx.h file (default value
* 25 MHz), user has to ensure that HSE_VALUE is same as the real
* frequency of the crystal used. Otherwise, this function may
* have wrong result.
*
* - The result of this function could be not correct when using fractional
* value for HSE crystal.
*
* @param None
* @retval None
*/
void SystemCoreClockUpdate(void)
{
uint32_t tmp = 0, pllvco = 0, pllp = 2, pllsource = 0, pllm = 2;
/* Get SYSCLK source -------------------------------------------------------*/
tmp = RCC->CFGR & RCC_CFGR_SWS;
switch (tmp)
{
case 0x00: /* HSI used as system clock source */
SystemCoreClock = HSI_VALUE;
break;
case 0x04: /* HSE used as system clock source */
SystemCoreClock = HSE_VALUE;
break;
case 0x08: /* PLL used as system clock source */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N
SYSCLK = PLL_VCO / PLL_P
*/
pllsource = (RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) >> 22;
pllm = RCC->PLLCFGR & RCC_PLLCFGR_PLLM;
if (pllsource != 0)
{
/* HSE used as PLL clock source */
pllvco = (HSE_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
}
else
{
/* HSI used as PLL clock source */
pllvco = (HSI_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
}
pllp = (((RCC->PLLCFGR & RCC_PLLCFGR_PLLP) >>16) + 1 ) *2;
SystemCoreClock = pllvco/pllp;
break;
default:
SystemCoreClock = HSI_VALUE;
break;
}
/* Compute HCLK frequency --------------------------------------------------*/
/* Get HCLK prescaler */
tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)];
/* HCLK frequency */
SystemCoreClock >>= tmp;
}
/**
* @brief Configures the System clock source, PLL Multiplier and Divider factors,
* AHB/APBx prescalers and Flash settings
* @Note This function should be called only once the RCC clock configuration
* is reset to the default reset state (done in SystemInit() function).
* @param None
* @retval None
*/
static void SetSysClock(void)
{
/******************************************************************************/
/* PLL (clocked by HSE) used as System clock source */
/******************************************************************************/
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
/* Enable HSE */
RCC->CR |= ((uint32_t)RCC_CR_HSEON);
/* Wait till HSE is ready and if Time out is reached exit */
do
{
HSEStatus = RCC->CR & RCC_CR_HSERDY;
StartUpCounter++;
} while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
if ((RCC->CR & RCC_CR_HSERDY) != RESET)
{
HSEStatus = (uint32_t)0x01;
}
else
{
HSEStatus = (uint32_t)0x00;
}
if (HSEStatus == (uint32_t)0x01)
{
/* HCLK = SYSCLK / 1*/
RCC->CFGR |= RCC_CFGR_HPRE_DIV1;
/* PCLK2 = HCLK / 2*/
RCC->CFGR |= RCC_CFGR_PPRE2_DIV2;
/* PCLK1 = HCLK / 4*/
RCC->CFGR |= RCC_CFGR_PPRE1_DIV4;
/* Configure the main PLL */
RCC->PLLCFGR = PLL_M | (PLL_N << 6) | (((PLL_P >> 1) -1) << 16) |
(RCC_PLLCFGR_PLLSRC_HSE) | (PLL_Q << 24);
/* Enable the main PLL */
RCC->CR |= RCC_CR_PLLON;
/* Wait till the main PLL is ready */
while((RCC->CR & RCC_CR_PLLRDY) == 0)
{
}
/* Configure Flash prefetch, Instruction cache, Data cache and wait state */
FLASH->ACR = FLASH_ACR_PRFTEN | FLASH_ACR_ICEN | FLASH_ACR_DCEN | FLASH_ACR_LATENCY_3WS;
/* Select the main PLL as system clock source */
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW));
RCC->CFGR |= RCC_CFGR_SW_PLL;
/* Wait till the main PLL is used as system clock source */
while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS ) != RCC_CFGR_SWS_PLL);
{
}
}
else
{ /* If HSE fails to start-up, the application will have wrong clock
configuration. User can add here some code to deal with this error */
}
}
/**
* @brief Setup the external memory controller. Called in startup_stm32f2xx.s
* before jump to __main
* @param None
* @retval None
*/
#ifdef DATA_IN_ExtSRAM
/**
* @brief Setup the external memory controller.
* Called in startup_stm32f2xx.s before jump to main.
* This function configures the external SRAM mounted on STM322xG_EVAL board
* This SRAM will be used as program data memory (including heap and stack).
* @param None
* @retval None
*/
void SystemInit_ExtMemCtl(void)
{
/*-- GPIOs Configuration -----------------------------------------------------*/
/*
+-------------------+--------------------+------------------+------------------+
+ SRAM pins assignment +
+-------------------+--------------------+------------------+------------------+
| PD0 <-> FSMC_D2 | PE0 <-> FSMC_NBL0 | PF0 <-> FSMC_A0 | PG0 <-> FSMC_A10 |
| PD1 <-> FSMC_D3 | PE1 <-> FSMC_NBL1 | PF1 <-> FSMC_A1 | PG1 <-> FSMC_A11 |
| PD4 <-> FSMC_NOE | PE7 <-> FSMC_D4 | PF2 <-> FSMC_A2 | PG2 <-> FSMC_A12 |
| PD5 <-> FSMC_NWE | PE8 <-> FSMC_D5 | PF3 <-> FSMC_A3 | PG3 <-> FSMC_A13 |
| PD8 <-> FSMC_D13 | PE9 <-> FSMC_D6 | PF4 <-> FSMC_A4 | PG4 <-> FSMC_A14 |
| PD9 <-> FSMC_D14 | PE10 <-> FSMC_D7 | PF5 <-> FSMC_A5 | PG5 <-> FSMC_A15 |
| PD10 <-> FSMC_D15 | PE11 <-> FSMC_D8 | PF12 <-> FSMC_A6 | PG9 <-> FSMC_NE2 |
| PD11 <-> FSMC_A16 | PE12 <-> FSMC_D9 | PF13 <-> FSMC_A7 |------------------+
| PD12 <-> FSMC_A17 | PE13 <-> FSMC_D10 | PF14 <-> FSMC_A8 |
| PD14 <-> FSMC_D0 | PE14 <-> FSMC_D11 | PF15 <-> FSMC_A9 |
| PD15 <-> FSMC_D1 | PE15 <-> FSMC_D12 |------------------+
+-------------------+--------------------+
*/
/* Enable GPIOD, GPIOE, GPIOF and GPIOG interface clock */
RCC->AHB1ENR = 0x00000078;
/* Connect PDx pins to FSMC Alternate function */
GPIOD->AFR[0] = 0x00cc00cc;
GPIOD->AFR[1] = 0xcc0ccccc;
/* Configure PDx pins in Alternate function mode */
GPIOD->MODER = 0xa2aa0a0a;
/* Configure PDx pins speed to 100 MHz */
GPIOD->OSPEEDR = 0xf3ff0f0f;
/* Configure PDx pins Output type to push-pull */
GPIOD->OTYPER = 0x00000000;
/* No pull-up, pull-down for PDx pins */
GPIOD->PUPDR = 0x00000000;
/* Connect PEx pins to FSMC Alternate function */
GPIOE->AFR[0] = 0xc00000cc;
GPIOE->AFR[1] = 0xcccccccc;
/* Configure PEx pins in Alternate function mode */
GPIOE->MODER = 0xaaaa800a;
/* Configure PEx pins speed to 100 MHz */
GPIOE->OSPEEDR = 0xffffc00f;
/* Configure PEx pins Output type to push-pull */
GPIOE->OTYPER = 0x00000000;
/* No pull-up, pull-down for PEx pins */
GPIOE->PUPDR = 0x00000000;
/* Connect PFx pins to FSMC Alternate function */
GPIOF->AFR[0] = 0x00cccccc;
GPIOF->AFR[1] = 0xcccc0000;
/* Configure PFx pins in Alternate function mode */
GPIOF->MODER = 0xaa000aaa;
/* Configure PFx pins speed to 100 MHz */
GPIOF->OSPEEDR = 0xff000fff;
/* Configure PFx pins Output type to push-pull */
GPIOF->OTYPER = 0x00000000;
/* No pull-up, pull-down for PFx pins */
GPIOF->PUPDR = 0x00000000;
/* Connect PGx pins to FSMC Alternate function */
GPIOG->AFR[0] = 0x00cccccc;
GPIOG->AFR[1] = 0x000000c0;
/* Configure PGx pins in Alternate function mode */
GPIOG->MODER = 0x00080aaa;
/* Configure PGx pins speed to 100 MHz */
GPIOG->OSPEEDR = 0x000c0fff;
/* Configure PGx pins Output type to push-pull */
GPIOG->OTYPER = 0x00000000;
/* No pull-up, pull-down for PGx pins */
GPIOG->PUPDR = 0x00000000;
/*-- FSMC Configuration ------------------------------------------------------*/
/* Enable the FSMC interface clock */
RCC->AHB3ENR = 0x00000001;
/* Configure and enable Bank1_SRAM2 */
FSMC_Bank1->BTCR[2] = 0x00001015;
FSMC_Bank1->BTCR[3] = 0x00010400;
FSMC_Bank1E->BWTR[2] = 0x0fffffff;
/*
Bank1_SRAM2 is configured as follow:
p.FSMC_AddressSetupTime = 0;
p.FSMC_AddressHoldTime = 0;
p.FSMC_DataSetupTime = 4;
p.FSMC_BusTurnAroundDuration = 1;
p.FSMC_CLKDivision = 0;
p.FSMC_DataLatency = 0;
p.FSMC_AccessMode = FSMC_AccessMode_A;
FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM2;
FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;
FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_PSRAM;
FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b;
FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_AsynchronousWait = FSMC_AsynchronousWait_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState;
FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;
FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;
FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p;
FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;
*/
}
#endif /* DATA_IN_ExtSRAM */
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,187 +0,0 @@
/**
******************************************************************************
* @file ADC/TripleADC_Interleaved_DMAmode2/main.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main program body
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup ADC_TripleADC_Interleaved_DMAmode2
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define ADC_CDR_ADDRESS ((uint32_t)0x40012308)
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
__IO uint32_t ADCTripleConvertedValue[3];
ADC_InitTypeDef ADC_InitStructure;
ADC_CommonInitTypeDef ADC_CommonInitStructure;
DMA_InitTypeDef DMA_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f2xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f2xx.c file
*/
/******************************************************************************/
/* ADCs interface clock, pin and DMA configuration */
/******************************************************************************/
/* Enable peripheral clocks */
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2 | RCC_AHB1Periph_GPIOC, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1 | RCC_APB2Periph_ADC2 |
RCC_APB2Periph_ADC3, ENABLE);
/* Configure ADC Channel 12 pin as analog input */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;
GPIO_Init(GPIOC, &GPIO_InitStructure);
/* DMA2 Stream0 channel0 configuration */
DMA_InitStructure.DMA_Channel = DMA_Channel_0;
DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)ADC_CDR_ADDRESS;
DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)&ADCTripleConvertedValue;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
DMA_InitStructure.DMA_BufferSize = 3;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word;
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
DMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Disable;
DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_HalfFull;
DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
DMA_Init(DMA2_Stream0, &DMA_InitStructure);
/* DMA2_Stream0 enable */
DMA_Cmd(DMA2_Stream0, ENABLE);
/******************************************************************************/
/* ADCs configuration: triple interleaved with 5cycles delay to reach 6Msps */
/******************************************************************************/
/* ADC Common configuration *************************************************/
ADC_CommonInitStructure.ADC_Mode = ADC_TripleMode_Interl;
ADC_CommonInitStructure.ADC_TwoSamplingDelay = ADC_TwoSamplingDelay_5Cycles;
ADC_CommonInitStructure.ADC_DMAAccessMode = ADC_DMAAccessMode_2;
ADC_CommonInitStructure.ADC_Prescaler = ADC_Prescaler_Div2;
ADC_CommonInit(&ADC_CommonInitStructure);
/* ADC1 regular channel 12 configuration ************************************/
ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
ADC_InitStructure.ADC_ScanConvMode = DISABLE;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_T1_CC1;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfConversion = 1;
ADC_Init(ADC1, &ADC_InitStructure);
ADC_RegularChannelConfig(ADC1, ADC_Channel_12, 1, ADC_SampleTime_3Cycles);
/* ADC2 regular channel 12 configuration ************************************/
ADC_Init(ADC2, &ADC_InitStructure);
/* ADC2 regular channel12 configuration */
ADC_RegularChannelConfig(ADC2, ADC_Channel_12, 1, ADC_SampleTime_3Cycles);
/* ADC3 regular channel 12 configuration ************************************/
ADC_Init(ADC3, &ADC_InitStructure);
/* ADC3 regular channel12 configuration */
ADC_RegularChannelConfig(ADC3, ADC_Channel_12, 1, ADC_SampleTime_3Cycles);
/* Enable DMA request after last transfer (multi-ADC mode) ******************/
ADC_MultiModeDMARequestAfterLastTransferCmd(ENABLE);
/* Enable ADC1 **************************************************************/
ADC_Cmd(ADC1, ENABLE);
/* Enable ADC2 **************************************************************/
ADC_Cmd(ADC2, ENABLE);
/* Enable ADC3 **************************************************************/
ADC_Cmd(ADC3, ENABLE);
/* Start ADC1 Software Conversion */
ADC_SoftwareStartConv(ADC1);
while (1)
{
}
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,105 +0,0 @@
/**
@page TripleADC_Interleaved_DMAmode2 Use ADC1, ADC2 and ADC3 in Triple interleaved mode and DMA mode2 with 6Msps
@verbatim
******************** (C) COPYRIGHT 2012 STMicroelectronics *******************
* @file ADC/TripleADC_Interleaved_DMAmode2/readme.txt
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Description of the Triple interleaved mode and DMA mode2 Example
******************************************************************************
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
@endverbatim
@par Example Description
This example provides a short description of how to use the ADC peripheral to
convert a regular channel in Triple interleaved mode using DMA in mode 2 with
6Msps .
The Triple interleaved delay is configured 5 ADC clk cycles.
In Triple ADC mode, three DMA requests are generated:
- On the first request, both ADC2 and ADC1 data are transferred (ADC2 data take
the upper half-word and ADC1 data take the lower half-word).
- On the second request, both ADC1 and ADC3 data are transferred (ADC1 data take
the upper half-word and ADC3 data take the lower half-word).
- On the third request, both ADC3 and ADC2 data are transferred (ADC3 data take
the upper half-word and ADC2 data take the lower half-word) and so on.
On each DMA request (two data items are available) two half-words representing
two ADC-converted data items are transferred as a word.
A DMA request is generated each time 2 data items are available :
1st request: ADC_CDR[31:0] = (ADC2_DR[15:0] << 16) | ADC1_DR[15:0] (step1)
2nd request: ADC_CDR[31:0] = (ADC1_DR[15:0] << 16) | ADC3_DR[15:0] (step2)
3rd request: ADC_CDR[31:0] = (ADC3_DR[15:0] << 16) | ADC2_DR[15:0] (step3)
4th request: ADC_CDR[31:0] = (ADC2_DR[15:0] << 16) | ADC1_DR[15:0] (step1) and so on.
The conversion is triggered by software.
The ADC1, ADC2 and ADC3 are configured to convert ADC Channel 12.
By this way, the ADC can reach 6Msps, in fact the same channel is converted
each 5 cycles
In this example, the system clock is 120MHz, APB2 = 60MHz and ADC clock = APB2 /2.
Since ADCCLK= 30MHz and Conversion rate = 5 cycles
==> Conversion Time = 30M/5cyc = 6Msps
@note Refer to "simulation.xls" file to have the diagram simulation of the example.
@par Directory contents
- ADC/TripleADC_Interleaved_DMAmode2/system_stm32f2xx.c STM32F2xx system clock configuration file
- ADC/TripleADC_Interleaved_DMAmode2/stm32f2xx_conf.h Library Configuration file
- ADC/TripleADC_Interleaved_DMAmode2/stm32f2xx_it.h Interrupt handlers header file
- ADC/TripleADC_Interleaved_DMAmode2/stm32f2xx_it.c Interrupt handlers
- ADC/TripleADC_Interleaved_DMAmode2/main.c Main program
@note The "system_stm32f2xx.c" is generated by an automatic clock configuration
tool and can be easily customized to your own configuration.
To select different clock setup, use the "STM32F2xx_Clock_Configuration_V1.0.0.xls"
provided with the AN3362 package available on <a href="http://www.st.com/internet/mcu/family/141.jsp"> ST Microcontrollers </a>
@par Hardware and Software environment
- This example runs on STM32F2xx Devices.
- This example has been tested with STM322xG-EVAL RevB and can be easily tailored
to any other development board.
- STM322xG-EVAL Set-up
- Connect PC.2 to a power supply (do not forget to connect the power supply GND
to the EVAL board GND)
@par How to use it ?
In order to make the program work, you must do the following :
- Copy all source files from this example folder to the template folder under
Project\STM32F2xx_StdPeriph_Template
- Open your preferred toolchain
- Rebuild all files and load your image into target memory
- Run the example
* <h3><center>&copy; COPYRIGHT STMicroelectronics</center></h3>
*/
@@ -1,94 +0,0 @@
/**
******************************************************************************
* @file ADC/TripleADC_Interleaved_DMAmode2/stm32f2xx_conf.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Library configuration file.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_CONF_H
#define __STM32F2xx_CONF_H
/* Includes ------------------------------------------------------------------*/
/* Uncomment the line below to enable peripheral header file inclusion */
#include "stm32f2xx_adc.h"
#include "stm32f2xx_can.h"
#include "stm32f2xx_crc.h"
#include "stm32f2xx_cryp.h"
#include "stm32f2xx_dac.h"
#include "stm32f2xx_dbgmcu.h"
#include "stm32f2xx_dcmi.h"
#include "stm32f2xx_dma.h"
#include "stm32f2xx_exti.h"
#include "stm32f2xx_flash.h"
#include "stm32f2xx_fsmc.h"
#include "stm32f2xx_hash.h"
#include "stm32f2xx_gpio.h"
#include "stm32f2xx_i2c.h"
#include "stm32f2xx_iwdg.h"
#include "stm32f2xx_pwr.h"
#include "stm32f2xx_rcc.h"
#include "stm32f2xx_rng.h"
#include "stm32f2xx_rtc.h"
#include "stm32f2xx_sdio.h"
#include "stm32f2xx_spi.h"
#include "stm32f2xx_syscfg.h"
#include "stm32f2xx_tim.h"
#include "stm32f2xx_usart.h"
#include "stm32f2xx_wwdg.h"
#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* If an external clock source is used, then the value of the following define
should be set to the value of the external clock source, else, if no external
clock is used, keep this define commented */
/*#define I2S_EXTERNAL_CLOCK_VAL 12288000 */ /* Value of the external clock in Hz */
/* Uncomment the line below to expanse the "assert_param" macro in the
Standard Peripheral Library drivers code */
/* #define USE_FULL_ASSERT 1 */
/* Exported macro ------------------------------------------------------------*/
#ifdef USE_FULL_ASSERT
/**
* @brief The assert_param macro is used for function's parameters check.
* @param expr: If expr is false, it calls assert_failed function
* which reports the name of the source file and the source
* line number of the call that failed.
* If expr is true, it returns no value.
* @retval None
*/
#define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__))
/* Exported functions ------------------------------------------------------- */
void assert_failed(uint8_t* file, uint32_t line);
#else
#define assert_param(expr) ((void)0)
#endif /* USE_FULL_ASSERT */
#endif /* __STM32F2xx_CONF_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,173 +0,0 @@
/**
******************************************************************************
* @file ADC/TripleADC_Interleaved_DMAmode2/stm32f2xx_it.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main Interrupt Service Routines.
* This file provides template for all exceptions handler and
* peripherals interrupt service routine.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx_it.h"
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup ADC_TripleADC_Interleaved_DMAmode2
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/******************************************************************************/
/* Cortex-M3 Processor Exceptions Handlers */
/******************************************************************************/
/**
* @brief This function handles NMI exception.
* @param None
* @retval None
*/
void NMI_Handler(void)
{
}
/**
* @brief This function handles Hard Fault exception.
* @param None
* @retval None
*/
void HardFault_Handler(void)
{
/* Go to infinite loop when Hard Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Memory Manage exception.
* @param None
* @retval None
*/
void MemManage_Handler(void)
{
/* Go to infinite loop when Memory Manage exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Bus Fault exception.
* @param None
* @retval None
*/
void BusFault_Handler(void)
{
/* Go to infinite loop when Bus Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Usage Fault exception.
* @param None
* @retval None
*/
void UsageFault_Handler(void)
{
/* Go to infinite loop when Usage Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles SVCall exception.
* @param None
* @retval None
*/
void SVC_Handler(void)
{
}
/**
* @brief This function handles Debug Monitor exception.
* @param None
* @retval None
*/
void DebugMon_Handler(void)
{
}
/**
* @brief This function handles PendSVC exception.
* @param None
* @retval None
*/
void PendSV_Handler(void)
{
}
/**
* @brief This function handles SysTick Handler.
* @param None
* @retval None
*/
void SysTick_Handler(void)
{
}
/******************************************************************************/
/* STM32F2xx Peripherals Interrupt Handlers */
/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */
/* available peripheral interrupt handler's name please refer to the startup */
/* file (startup_stm32f2xx.s). */
/******************************************************************************/
/**
* @brief This function handles PPP interrupt request.
* @param None
* @retval None
*/
/*void PPP_IRQHandler(void)
{
}*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,60 +0,0 @@
/**
******************************************************************************
* @file ADC/TripleADC_Interleaved_DMAmode2/stm32f2xx_it.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief This file contains the headers of the interrupt handlers.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_IT_H
#define __STM32F2xx_IT_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
void NMI_Handler(void);
void HardFault_Handler(void);
void MemManage_Handler(void);
void BusFault_Handler(void);
void UsageFault_Handler(void);
void SVC_Handler(void);
void DebugMon_Handler(void);
void PendSV_Handler(void);
void SysTick_Handler(void);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F2xx_IT_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,542 +0,0 @@
/**
******************************************************************************
* @file system_stm32f2xx.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File.
* This file contains the system clock configuration for STM32F2xx devices,
* and is generated by the clock configuration tool
* "STM32f2xx_Clock_Configuration_V1.0.0.xls"
*
* 1. This file provides two functions and one global variable to be called from
* user application:
* - SystemInit(): Setups the system clock (System clock source, PLL Multiplier
* and Divider factors, AHB/APBx prescalers and Flash settings),
* depending on the configuration made in the clock xls tool.
* This function is called at startup just after reset and
* before branch to main program. This call is made inside
* the "startup_stm32f2xx.s" file.
*
* - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
* by the user application to setup the SysTick
* timer or configure other parameters.
*
* - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
* be called whenever the core clock is changed
* during program execution.
*
* 2. After each device reset the HSI (16 MHz) is used as system clock source.
* Then SystemInit() function is called, in "startup_stm32f2xx.s" file, to
* configure the system clock before to branch to main program.
*
* 3. If the system clock source selected by user fails to startup, the SystemInit()
* function will do nothing and HSI still used as system clock source. User can
* add some code to deal with this issue inside the SetSysClock() function.
*
* 4. The default value of HSE crystal is set to 25MHz, refer to "HSE_VALUE" define
* in "stm32f2xx.h" file. When HSE is used as system clock source, directly or
* through PLL, and you are using different crystal you have to adapt the HSE
* value to your own configuration.
*
* 5. This file configures the system clock as follows:
*=============================================================================
*=============================================================================
* Supported STM32F2xx device revision | Rev B and Y
*-----------------------------------------------------------------------------
* System Clock source | PLL (HSE)
*-----------------------------------------------------------------------------
* SYSCLK(Hz) | 120000000
*-----------------------------------------------------------------------------
* HCLK(Hz) | 120000000
*-----------------------------------------------------------------------------
* AHB Prescaler | 1
*-----------------------------------------------------------------------------
* APB1 Prescaler | 4
*-----------------------------------------------------------------------------
* APB2 Prescaler | 2
*-----------------------------------------------------------------------------
* HSE Frequency(Hz) | 25000000
*-----------------------------------------------------------------------------
* PLL_M | 25
*-----------------------------------------------------------------------------
* PLL_N | 240
*-----------------------------------------------------------------------------
* PLL_P | 2
*-----------------------------------------------------------------------------
* PLL_Q | 5
*-----------------------------------------------------------------------------
* PLLI2S_N | NA
*-----------------------------------------------------------------------------
* PLLI2S_R | NA
*-----------------------------------------------------------------------------
* I2S input clock | NA
*-----------------------------------------------------------------------------
* VDD(V) | 3.3
*-----------------------------------------------------------------------------
* Flash Latency(WS) | 3
*-----------------------------------------------------------------------------
* Prefetch Buffer | ON
*-----------------------------------------------------------------------------
* Instruction cache | ON
*-----------------------------------------------------------------------------
* Data cache | ON
*-----------------------------------------------------------------------------
* Require 48MHz for USB OTG FS, | Enabled
* SDIO and RNG clock |
*-----------------------------------------------------------------------------
*=============================================================================
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/** @addtogroup CMSIS
* @{
*/
/** @addtogroup stm32f2xx_system
* @{
*/
/** @addtogroup STM32F2xx_System_Private_Includes
* @{
*/
#include "stm32f2xx.h"
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Defines
* @{
*/
/*!< Uncomment the following line if you need to use external SRAM mounted
on STM322xG_EVAL board as data memory */
/* #define DATA_IN_ExtSRAM */
/*!< Uncomment the following line if you need to relocate your vector Table in
Internal SRAM. */
/* #define VECT_TAB_SRAM */
#define VECT_TAB_OFFSET 0x00 /*!< Vector Table base offset field.
This value must be a multiple of 0x200. */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N */
#define PLL_M 25
#define PLL_N 240
/* SYSCLK = PLL_VCO / PLL_P */
#define PLL_P 2
/* USB OTG FS, SDIO and RNG Clock = PLL_VCO / PLLQ */
#define PLL_Q 5
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Macros
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Variables
* @{
*/
uint32_t SystemCoreClock = 120000000;
__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_FunctionPrototypes
* @{
*/
static void SetSysClock(void);
#ifdef DATA_IN_ExtSRAM
static void SystemInit_ExtMemCtl(void);
#endif /* DATA_IN_ExtSRAM */
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Functions
* @{
*/
/**
* @brief Setup the microcontroller system
* Initialize the Embedded Flash Interface, the PLL and update the
* SystemFrequency variable.
* @param None
* @retval None
*/
void SystemInit(void)
{
/* Reset the RCC clock configuration to the default reset state ------------*/
/* Set HSION bit */
RCC->CR |= (uint32_t)0x00000001;
/* Reset CFGR register */
RCC->CFGR = 0x00000000;
/* Reset HSEON, CSSON and PLLON bits */
RCC->CR &= (uint32_t)0xFEF6FFFF;
/* Reset PLLCFGR register */
RCC->PLLCFGR = 0x24003010;
/* Reset HSEBYP bit */
RCC->CR &= (uint32_t)0xFFFBFFFF;
/* Disable all interrupts */
RCC->CIR = 0x00000000;
#ifdef DATA_IN_ExtSRAM
SystemInit_ExtMemCtl();
#endif /* DATA_IN_ExtSRAM */
/* Configure the System clock source, PLL Multiplier and Divider factors,
AHB/APBx prescalers and Flash settings ----------------------------------*/
SetSysClock();
/* Configure the Vector Table location add offset address ------------------*/
#ifdef VECT_TAB_SRAM
SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */
#else
SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */
#endif
}
/**
* @brief Update SystemCoreClock variable according to Clock Register Values.
* The SystemCoreClock variable contains the core clock (HCLK), it can
* be used by the user application to setup the SysTick timer or configure
* other parameters.
*
* @note Each time the core clock (HCLK) changes, this function must be called
* to update SystemCoreClock variable value. Otherwise, any configuration
* based on this variable will be incorrect.
*
* @note - The system frequency computed by this function is not the real
* frequency in the chip. It is calculated based on the predefined
* constant and the selected clock source:
*
* - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*)
*
* - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**)
*
* - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**)
* or HSI_VALUE(*) multiplied/divided by the PLL factors.
*
* (*) HSI_VALUE is a constant defined in stm32f2xx.h file (default value
* 16 MHz) but the real value may vary depending on the variations
* in voltage and temperature.
*
* (**) HSE_VALUE is a constant defined in stm32f2xx.h file (default value
* 25 MHz), user has to ensure that HSE_VALUE is same as the real
* frequency of the crystal used. Otherwise, this function may
* have wrong result.
*
* - The result of this function could be not correct when using fractional
* value for HSE crystal.
*
* @param None
* @retval None
*/
void SystemCoreClockUpdate(void)
{
uint32_t tmp = 0, pllvco = 0, pllp = 2, pllsource = 0, pllm = 2;
/* Get SYSCLK source -------------------------------------------------------*/
tmp = RCC->CFGR & RCC_CFGR_SWS;
switch (tmp)
{
case 0x00: /* HSI used as system clock source */
SystemCoreClock = HSI_VALUE;
break;
case 0x04: /* HSE used as system clock source */
SystemCoreClock = HSE_VALUE;
break;
case 0x08: /* PLL used as system clock source */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N
SYSCLK = PLL_VCO / PLL_P
*/
pllsource = (RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) >> 22;
pllm = RCC->PLLCFGR & RCC_PLLCFGR_PLLM;
if (pllsource != 0)
{
/* HSE used as PLL clock source */
pllvco = (HSE_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
}
else
{
/* HSI used as PLL clock source */
pllvco = (HSI_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
}
pllp = (((RCC->PLLCFGR & RCC_PLLCFGR_PLLP) >>16) + 1 ) *2;
SystemCoreClock = pllvco/pllp;
break;
default:
SystemCoreClock = HSI_VALUE;
break;
}
/* Compute HCLK frequency --------------------------------------------------*/
/* Get HCLK prescaler */
tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)];
/* HCLK frequency */
SystemCoreClock >>= tmp;
}
/**
* @brief Configures the System clock source, PLL Multiplier and Divider factors,
* AHB/APBx prescalers and Flash settings
* @Note This function should be called only once the RCC clock configuration
* is reset to the default reset state (done in SystemInit() function).
* @param None
* @retval None
*/
static void SetSysClock(void)
{
/******************************************************************************/
/* PLL (clocked by HSE) used as System clock source */
/******************************************************************************/
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
/* Enable HSE */
RCC->CR |= ((uint32_t)RCC_CR_HSEON);
/* Wait till HSE is ready and if Time out is reached exit */
do
{
HSEStatus = RCC->CR & RCC_CR_HSERDY;
StartUpCounter++;
} while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
if ((RCC->CR & RCC_CR_HSERDY) != RESET)
{
HSEStatus = (uint32_t)0x01;
}
else
{
HSEStatus = (uint32_t)0x00;
}
if (HSEStatus == (uint32_t)0x01)
{
/* HCLK = SYSCLK / 1*/
RCC->CFGR |= RCC_CFGR_HPRE_DIV1;
/* PCLK2 = HCLK / 2*/
RCC->CFGR |= RCC_CFGR_PPRE2_DIV2;
/* PCLK1 = HCLK / 4*/
RCC->CFGR |= RCC_CFGR_PPRE1_DIV4;
/* Configure the main PLL */
RCC->PLLCFGR = PLL_M | (PLL_N << 6) | (((PLL_P >> 1) -1) << 16) |
(RCC_PLLCFGR_PLLSRC_HSE) | (PLL_Q << 24);
/* Enable the main PLL */
RCC->CR |= RCC_CR_PLLON;
/* Wait till the main PLL is ready */
while((RCC->CR & RCC_CR_PLLRDY) == 0)
{
}
/* Configure Flash prefetch, Instruction cache, Data cache and wait state */
FLASH->ACR = FLASH_ACR_PRFTEN | FLASH_ACR_ICEN | FLASH_ACR_DCEN | FLASH_ACR_LATENCY_3WS;
/* Select the main PLL as system clock source */
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW));
RCC->CFGR |= RCC_CFGR_SW_PLL;
/* Wait till the main PLL is used as system clock source */
while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS ) != RCC_CFGR_SWS_PLL);
{
}
}
else
{ /* If HSE fails to start-up, the application will have wrong clock
configuration. User can add here some code to deal with this error */
}
}
/**
* @brief Setup the external memory controller. Called in startup_stm32f2xx.s
* before jump to __main
* @param None
* @retval None
*/
#ifdef DATA_IN_ExtSRAM
/**
* @brief Setup the external memory controller.
* Called in startup_stm32f2xx.s before jump to main.
* This function configures the external SRAM mounted on STM322xG_EVAL board
* This SRAM will be used as program data memory (including heap and stack).
* @param None
* @retval None
*/
void SystemInit_ExtMemCtl(void)
{
/*-- GPIOs Configuration -----------------------------------------------------*/
/*
+-------------------+--------------------+------------------+------------------+
+ SRAM pins assignment +
+-------------------+--------------------+------------------+------------------+
| PD0 <-> FSMC_D2 | PE0 <-> FSMC_NBL0 | PF0 <-> FSMC_A0 | PG0 <-> FSMC_A10 |
| PD1 <-> FSMC_D3 | PE1 <-> FSMC_NBL1 | PF1 <-> FSMC_A1 | PG1 <-> FSMC_A11 |
| PD4 <-> FSMC_NOE | PE7 <-> FSMC_D4 | PF2 <-> FSMC_A2 | PG2 <-> FSMC_A12 |
| PD5 <-> FSMC_NWE | PE8 <-> FSMC_D5 | PF3 <-> FSMC_A3 | PG3 <-> FSMC_A13 |
| PD8 <-> FSMC_D13 | PE9 <-> FSMC_D6 | PF4 <-> FSMC_A4 | PG4 <-> FSMC_A14 |
| PD9 <-> FSMC_D14 | PE10 <-> FSMC_D7 | PF5 <-> FSMC_A5 | PG5 <-> FSMC_A15 |
| PD10 <-> FSMC_D15 | PE11 <-> FSMC_D8 | PF12 <-> FSMC_A6 | PG9 <-> FSMC_NE2 |
| PD11 <-> FSMC_A16 | PE12 <-> FSMC_D9 | PF13 <-> FSMC_A7 |------------------+
| PD12 <-> FSMC_A17 | PE13 <-> FSMC_D10 | PF14 <-> FSMC_A8 |
| PD14 <-> FSMC_D0 | PE14 <-> FSMC_D11 | PF15 <-> FSMC_A9 |
| PD15 <-> FSMC_D1 | PE15 <-> FSMC_D12 |------------------+
+-------------------+--------------------+
*/
/* Enable GPIOD, GPIOE, GPIOF and GPIOG interface clock */
RCC->AHB1ENR = 0x00000078;
/* Connect PDx pins to FSMC Alternate function */
GPIOD->AFR[0] = 0x00cc00cc;
GPIOD->AFR[1] = 0xcc0ccccc;
/* Configure PDx pins in Alternate function mode */
GPIOD->MODER = 0xa2aa0a0a;
/* Configure PDx pins speed to 100 MHz */
GPIOD->OSPEEDR = 0xf3ff0f0f;
/* Configure PDx pins Output type to push-pull */
GPIOD->OTYPER = 0x00000000;
/* No pull-up, pull-down for PDx pins */
GPIOD->PUPDR = 0x00000000;
/* Connect PEx pins to FSMC Alternate function */
GPIOE->AFR[0] = 0xc00000cc;
GPIOE->AFR[1] = 0xcccccccc;
/* Configure PEx pins in Alternate function mode */
GPIOE->MODER = 0xaaaa800a;
/* Configure PEx pins speed to 100 MHz */
GPIOE->OSPEEDR = 0xffffc00f;
/* Configure PEx pins Output type to push-pull */
GPIOE->OTYPER = 0x00000000;
/* No pull-up, pull-down for PEx pins */
GPIOE->PUPDR = 0x00000000;
/* Connect PFx pins to FSMC Alternate function */
GPIOF->AFR[0] = 0x00cccccc;
GPIOF->AFR[1] = 0xcccc0000;
/* Configure PFx pins in Alternate function mode */
GPIOF->MODER = 0xaa000aaa;
/* Configure PFx pins speed to 100 MHz */
GPIOF->OSPEEDR = 0xff000fff;
/* Configure PFx pins Output type to push-pull */
GPIOF->OTYPER = 0x00000000;
/* No pull-up, pull-down for PFx pins */
GPIOF->PUPDR = 0x00000000;
/* Connect PGx pins to FSMC Alternate function */
GPIOG->AFR[0] = 0x00cccccc;
GPIOG->AFR[1] = 0x000000c0;
/* Configure PGx pins in Alternate function mode */
GPIOG->MODER = 0x00080aaa;
/* Configure PGx pins speed to 100 MHz */
GPIOG->OSPEEDR = 0x000c0fff;
/* Configure PGx pins Output type to push-pull */
GPIOG->OTYPER = 0x00000000;
/* No pull-up, pull-down for PGx pins */
GPIOG->PUPDR = 0x00000000;
/*-- FSMC Configuration ------------------------------------------------------*/
/* Enable the FSMC interface clock */
RCC->AHB3ENR = 0x00000001;
/* Configure and enable Bank1_SRAM2 */
FSMC_Bank1->BTCR[2] = 0x00001015;
FSMC_Bank1->BTCR[3] = 0x00010400;
FSMC_Bank1E->BWTR[2] = 0x0fffffff;
/*
Bank1_SRAM2 is configured as follow:
p.FSMC_AddressSetupTime = 0;
p.FSMC_AddressHoldTime = 0;
p.FSMC_DataSetupTime = 4;
p.FSMC_BusTurnAroundDuration = 1;
p.FSMC_CLKDivision = 0;
p.FSMC_DataLatency = 0;
p.FSMC_AccessMode = FSMC_AccessMode_A;
FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM2;
FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;
FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_PSRAM;
FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b;
FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_AsynchronousWait = FSMC_AsynchronousWait_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState;
FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;
FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;
FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p;
FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;
*/
}
#endif /* DATA_IN_ExtSRAM */
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,270 +0,0 @@
/**
******************************************************************************
* @file ADC/VBAT_Measurement/main.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main program body
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
#include "stm322xg_eval.h"
#include "stm322xg_eval_lcd.h"
#include <stdio.h>
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup ADC_VBAT_Measurement
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* used to display the ADC converted value on LCD */
#define PRINT_ON_LCD
/* if you are not using the LCD, you can monitor the converted value by adding
the variable "ADCConvertedValue" to the debugger watch window */
#define ADC1_DR_ADDRESS ((uint32_t)0x4001204C)
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
__IO uint16_t ADCConvertedValue = 0;
__IO uint32_t VBATVoltage = 0;
/* Private function prototypes -----------------------------------------------*/
void ADC1_ChVbat_DMA_Config(void);
#ifdef PRINT_ON_LCD
void Display_Init(void);
void Display(void);
static void delay(__IO uint32_t nCount);
#endif /* PRINT_ON_LCD */
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f2xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f2xx.c file
*/
#ifdef PRINT_ON_LCD
/* LCD Display init */
Display_Init();
#endif /* PRINT_ON_LCD */
/* ADC1 Channel Vbat configuration */
ADC1_ChVbat_DMA_Config();
/* Start ADC1 Software Conversion */
ADC_SoftwareStartConv(ADC1);
while (1)
{
#ifdef PRINT_ON_LCD
/* Display ADC converted value on LCD */
Display();
#endif /* PRINT_ON_LCD */
}
}
/**
* @brief ADC1 Channel Vbat configuration (DMA, ADC, CLK)
* @param None
* @retval None
*/
void ADC1_ChVbat_DMA_Config(void)
{
ADC_InitTypeDef ADC_InitStructure;
ADC_CommonInitTypeDef ADC_CommonInitStructure;
DMA_InitTypeDef DMA_InitStructure;
/* Enable peripheral clocks *************************************************/
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
/* DMA2_Stream0 channel0 configuration **************************************/
DMA_DeInit(DMA2_Stream0);
DMA_InitStructure.DMA_Channel = DMA_Channel_0;
DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)ADC1_DR_ADDRESS;
DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)&ADCConvertedValue;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
DMA_InitStructure.DMA_BufferSize = 1;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Disable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
DMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Disable;
DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_HalfFull;
DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
DMA_Init(DMA2_Stream0, &DMA_InitStructure);
/* DMA2_Stream0 enable */
DMA_Cmd(DMA2_Stream0, ENABLE);
/* ADC Common Init **********************************************************/
ADC_CommonInitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_CommonInitStructure.ADC_Prescaler = ADC_Prescaler_Div2;
ADC_CommonInitStructure.ADC_DMAAccessMode = ADC_DMAAccessMode_Disabled;
ADC_CommonInitStructure.ADC_TwoSamplingDelay = ADC_TwoSamplingDelay_5Cycles;
ADC_CommonInit(&ADC_CommonInitStructure);
/* ADC1 Init ****************************************************************/
ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
ADC_InitStructure.ADC_ScanConvMode = DISABLE;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_T1_CC1;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfConversion = 1;
ADC_Init(ADC1, &ADC_InitStructure);
/* Enable ADC1 DMA */
ADC_DMACmd(ADC1, ENABLE);
/* ADC1 regular channel18 (VBAT) configuration ******************************/
ADC_RegularChannelConfig(ADC1, ADC_Channel_Vbat, 1, ADC_SampleTime_15Cycles);
/* Enable VBAT channel */
ADC_VBATCmd(ENABLE);
/* Enable DMA request after last transfer (Single-ADC mode) */
ADC_DMARequestAfterLastTransferCmd(ADC1, ENABLE);
/* Enable ADC1 **************************************************************/
ADC_Cmd(ADC1, ENABLE);
}
#ifdef PRINT_ON_LCD
/**
* @brief Display ADC converted value on LCD
* @param None
* @retval None
*/
void Display(void)
{
uint32_t vbatV=0,vbatmV=0;
uint8_t text[50];
/*The VBAT pin is internally connected to a bridge divider by 2 */
VBATVoltage = (ADCConvertedValue*2)*3300/0xFFF;
vbatV=VBATVoltage/1000;
vbatmV = (VBATVoltage%1000)/100;
sprintf((char*)text," %d,%d V ",vbatV,vbatmV);
LCD_DisplayStringLine(LINE(6),text);
delay(100);
}
/**
* @brief Display Init (LCD)
* @param None
* @retval None
*/
void Display_Init(void)
{
/* Initialize the LCD */
STM322xG_LCD_Init();
/* Clear the LCD */
LCD_Clear(White);
/* Set the LCD Text size */
LCD_SetFont(&Font8x12);
/* Set the LCD Back Color and Text Color*/
LCD_SetBackColor(Blue);
LCD_SetTextColor(White);
LCD_DisplayStringLine(LINE(0x13), " STM32F2xx ADC1 VBAT Measurement example");
/* Set the LCD Text size */
LCD_SetFont(&Font16x24);
LCD_DisplayStringLine(LINE(0), "**VBAT Measurement**");
/* Set the LCD Back Color and Text Color*/
LCD_SetBackColor(White);
LCD_SetTextColor(Blue);
LCD_DisplayStringLine(LINE(2)," Eval Board Instant ");
LCD_DisplayStringLine(LINE(4)," Battery Voltage ");
}
/**
* @brief Inserts a delay time
* @param nCount: specifies the delay time length
* @retval None
*/
static void delay(__IO uint32_t nCount)
{
__IO uint32_t index = 0;
for(index = (100000 * nCount); index != 0; index--)
{
}
}
#endif /* PRINT_ON_LCD */
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,86 +0,0 @@
/**
@page ADC_VBAT_Measurement ADC_VBAT_Measurement
@verbatim
******************** (C) COPYRIGHT 2012 STMicroelectronics *******************
* @file ADC/VBAT_Measurement/readme.txt
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Description of the ADC1 VBAT Measurement example.
******************************************************************************
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
@endverbatim
@par Example Description
This example describes how to measure VBAT voltage using ADC1 regular channel 18.
In fact, the measured value correspond to VBAT/2; as the VBAT voltage could be higher
than VDDA, to ensure the correct operation of the ADC, the VBAT pin is internally
connected to a bridge divider by 2.
In this example the VBAT/2 voltage is continuously converted, each time an end
of conversion occurs the DMA transfers, in circular mode, the converted data from
ADC1 DR register to the ADCConvertedValue variable.
However, in real application to prevent any unwanted consumption on the battery,
it is recommended to enable the bridge divider only when needed for ADC
conversion then disable it.
User can display the VBAT voltage on the Eval Board LCD (when the define PRINT_ON_LCD
is enabled in main.c)
In this example, the system clock is 120MHz, APB2 =60MHz and ADC clock = APB2 /2.
So ADCCLK= 30MHz
Conversion rate of Vbat channel = Sampling Time + Conversion Time = 15 + 12 cycles
= 27 cycles ==> Conversion Time = 30MHz/27cyc = 1.11Msps.
@par Directory contents
- ADC/VBAT_Measurement/system_stm32f2xx.c STM32F2xx system clock configuration file
- ADC/VBAT_Measurement/stm32f2xx_conf.h Library Configuration file
- ADC/VBAT_Measurement/stm32f2xx_it.c Interrupt handlers
- ADC/VBAT_Measurement/stm32f2xx_it.h Interrupt handlers header file
- ADC/VBAT_Measurement/main.c Main program
@note The "system_stm32f2xx.c" is generated by an automatic clock configuration
tool and can be easily customized to your own configuration.
To select different clock setup, use the "STM32F2xx_Clock_Configuration_V1.0.0.xls"
provided with the AN3362 package available on <a href="http://www.st.com/internet/mcu/family/141.jsp"> ST Microcontrollers </a>
@par Hardware and Software environment
- This example runs on STM32F2xx Devices.
- This example has been tested with STM322xG-EVAL RevB and can be easily tailored
to any other development board
@par How to use it ?
In order to make the program work, you must do the following :
- Copy all source files from this example folder to the template folder under
Project\STM32F2xx_StdPeriph_Template
- Open your preferred toolchain
- Rebuild all files and load your image into target memory
- Run the example
* <h3><center>&copy; COPYRIGHT STMicroelectronics</center></h3>
*/
@@ -1,94 +0,0 @@
/**
******************************************************************************
* @file ADC/VBAT_Measurement/stm32f2xx_conf.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Library configuration file.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_CONF_H
#define __STM32F2xx_CONF_H
/* Includes ------------------------------------------------------------------*/
/* Uncomment the line below to enable peripheral header file inclusion */
#include "stm32f2xx_adc.h"
#include "stm32f2xx_can.h"
#include "stm32f2xx_crc.h"
#include "stm32f2xx_cryp.h"
#include "stm32f2xx_dac.h"
#include "stm32f2xx_dbgmcu.h"
#include "stm32f2xx_dcmi.h"
#include "stm32f2xx_dma.h"
#include "stm32f2xx_exti.h"
#include "stm32f2xx_flash.h"
#include "stm32f2xx_fsmc.h"
#include "stm32f2xx_hash.h"
#include "stm32f2xx_gpio.h"
#include "stm32f2xx_i2c.h"
#include "stm32f2xx_iwdg.h"
#include "stm32f2xx_pwr.h"
#include "stm32f2xx_rcc.h"
#include "stm32f2xx_rng.h"
#include "stm32f2xx_rtc.h"
#include "stm32f2xx_sdio.h"
#include "stm32f2xx_spi.h"
#include "stm32f2xx_syscfg.h"
#include "stm32f2xx_tim.h"
#include "stm32f2xx_usart.h"
#include "stm32f2xx_wwdg.h"
#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* If an external clock source is used, then the value of the following define
should be set to the value of the external clock source, else, if no external
clock is used, keep this define commented */
/*#define I2S_EXTERNAL_CLOCK_VAL 12288000 */ /* Value of the external clock in Hz */
/* Uncomment the line below to expanse the "assert_param" macro in the
Standard Peripheral Library drivers code */
/* #define USE_FULL_ASSERT 1 */
/* Exported macro ------------------------------------------------------------*/
#ifdef USE_FULL_ASSERT
/**
* @brief The assert_param macro is used for function's parameters check.
* @param expr: If expr is false, it calls assert_failed function
* which reports the name of the source file and the source
* line number of the call that failed.
* If expr is true, it returns no value.
* @retval None
*/
#define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__))
/* Exported functions ------------------------------------------------------- */
void assert_failed(uint8_t* file, uint32_t line);
#else
#define assert_param(expr) ((void)0)
#endif /* USE_FULL_ASSERT */
#endif /* __STM32F2xx_CONF_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,170 +0,0 @@
/**
******************************************************************************
* @file ADC/VBAT_Measurement/stm32f2xx_it.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main Interrupt Service Routines.
* This file provides template for all exceptions handler and
* peripherals interrupt service routine.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx_it.h"
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup ADC_VBAT_Measurement
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/******************************************************************************/
/* Cortex-M3 Processor Exceptions Handlers */
/******************************************************************************/
/**
* @brief This function handles NMI exception.
* @param None
* @retval None
*/
void NMI_Handler(void)
{
}
/**
* @brief This function handles Hard Fault exception.
* @param None
* @retval None
*/
void HardFault_Handler(void)
{
/* Go to infinite loop when Hard Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Memory Manage exception.
* @param None
* @retval None
*/
void MemManage_Handler(void)
{
/* Go to infinite loop when Memory Manage exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Bus Fault exception.
* @param None
* @retval None
*/
void BusFault_Handler(void)
{
/* Go to infinite loop when Bus Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Usage Fault exception.
* @param None
* @retval None
*/
void UsageFault_Handler(void)
{
/* Go to infinite loop when Usage Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles SVCall exception.
* @param None
* @retval None
*/
void SVC_Handler(void)
{
}
/**
* @brief This function handles Debug Monitor exception.
* @param None
* @retval None
*/
void DebugMon_Handler(void)
{
}
/**
* @brief This function handles PendSVC exception.
* @param None
* @retval None
*/
void PendSV_Handler(void)
{
}
/**
* @brief This function handles SysTick Handler.
* @param None
* @retval None
*/
void SysTick_Handler(void)
{
}
/******************************************************************************/
/* STM32F2xx Peripherals Interrupt Handlers */
/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */
/* available peripheral interrupt handler's name please refer to the startup */
/* file (startup_stm32f2xx.s). */
/******************************************************************************/
/**
* @brief This function handles PPP interrupt request.
* @param None
* @retval None
*/
/*void PPP_IRQHandler(void)
{
}*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,60 +0,0 @@
/**
******************************************************************************
* @file ADC/VBAT_Measurement/stm32f2xx_it.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief This file contains the headers of the interrupt handlers.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_IT_H
#define __STM32F2xx_IT_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
void NMI_Handler(void);
void HardFault_Handler(void);
void MemManage_Handler(void);
void BusFault_Handler(void);
void UsageFault_Handler(void);
void SVC_Handler(void);
void DebugMon_Handler(void);
void PendSV_Handler(void);
void SysTick_Handler(void);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F2xx_IT_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,542 +0,0 @@
/**
******************************************************************************
* @file system_stm32f2xx.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File.
* This file contains the system clock configuration for STM32F2xx devices,
* and is generated by the clock configuration tool
* "STM32f2xx_Clock_Configuration_V1.0.0.xls"
*
* 1. This file provides two functions and one global variable to be called from
* user application:
* - SystemInit(): Setups the system clock (System clock source, PLL Multiplier
* and Divider factors, AHB/APBx prescalers and Flash settings),
* depending on the configuration made in the clock xls tool.
* This function is called at startup just after reset and
* before branch to main program. This call is made inside
* the "startup_stm32f2xx.s" file.
*
* - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
* by the user application to setup the SysTick
* timer or configure other parameters.
*
* - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
* be called whenever the core clock is changed
* during program execution.
*
* 2. After each device reset the HSI (16 MHz) is used as system clock source.
* Then SystemInit() function is called, in "startup_stm32f2xx.s" file, to
* configure the system clock before to branch to main program.
*
* 3. If the system clock source selected by user fails to startup, the SystemInit()
* function will do nothing and HSI still used as system clock source. User can
* add some code to deal with this issue inside the SetSysClock() function.
*
* 4. The default value of HSE crystal is set to 25MHz, refer to "HSE_VALUE" define
* in "stm32f2xx.h" file. When HSE is used as system clock source, directly or
* through PLL, and you are using different crystal you have to adapt the HSE
* value to your own configuration.
*
* 5. This file configures the system clock as follows:
*=============================================================================
*=============================================================================
* Supported STM32F2xx device revision | Rev B and Y
*-----------------------------------------------------------------------------
* System Clock source | PLL (HSE)
*-----------------------------------------------------------------------------
* SYSCLK(Hz) | 120000000
*-----------------------------------------------------------------------------
* HCLK(Hz) | 120000000
*-----------------------------------------------------------------------------
* AHB Prescaler | 1
*-----------------------------------------------------------------------------
* APB1 Prescaler | 4
*-----------------------------------------------------------------------------
* APB2 Prescaler | 2
*-----------------------------------------------------------------------------
* HSE Frequency(Hz) | 25000000
*-----------------------------------------------------------------------------
* PLL_M | 25
*-----------------------------------------------------------------------------
* PLL_N | 240
*-----------------------------------------------------------------------------
* PLL_P | 2
*-----------------------------------------------------------------------------
* PLL_Q | 5
*-----------------------------------------------------------------------------
* PLLI2S_N | NA
*-----------------------------------------------------------------------------
* PLLI2S_R | NA
*-----------------------------------------------------------------------------
* I2S input clock | NA
*-----------------------------------------------------------------------------
* VDD(V) | 3.3
*-----------------------------------------------------------------------------
* Flash Latency(WS) | 3
*-----------------------------------------------------------------------------
* Prefetch Buffer | ON
*-----------------------------------------------------------------------------
* Instruction cache | ON
*-----------------------------------------------------------------------------
* Data cache | ON
*-----------------------------------------------------------------------------
* Require 48MHz for USB OTG FS, | Enabled
* SDIO and RNG clock |
*-----------------------------------------------------------------------------
*=============================================================================
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/** @addtogroup CMSIS
* @{
*/
/** @addtogroup stm32f2xx_system
* @{
*/
/** @addtogroup STM32F2xx_System_Private_Includes
* @{
*/
#include "stm32f2xx.h"
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Defines
* @{
*/
/*!< Uncomment the following line if you need to use external SRAM mounted
on STM322xG_EVAL board as data memory */
/* #define DATA_IN_ExtSRAM */
/*!< Uncomment the following line if you need to relocate your vector Table in
Internal SRAM. */
/* #define VECT_TAB_SRAM */
#define VECT_TAB_OFFSET 0x00 /*!< Vector Table base offset field.
This value must be a multiple of 0x200. */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N */
#define PLL_M 25
#define PLL_N 240
/* SYSCLK = PLL_VCO / PLL_P */
#define PLL_P 2
/* USB OTG FS, SDIO and RNG Clock = PLL_VCO / PLLQ */
#define PLL_Q 5
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Macros
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Variables
* @{
*/
uint32_t SystemCoreClock = 120000000;
__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_FunctionPrototypes
* @{
*/
static void SetSysClock(void);
#ifdef DATA_IN_ExtSRAM
static void SystemInit_ExtMemCtl(void);
#endif /* DATA_IN_ExtSRAM */
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Functions
* @{
*/
/**
* @brief Setup the microcontroller system
* Initialize the Embedded Flash Interface, the PLL and update the
* SystemFrequency variable.
* @param None
* @retval None
*/
void SystemInit(void)
{
/* Reset the RCC clock configuration to the default reset state ------------*/
/* Set HSION bit */
RCC->CR |= (uint32_t)0x00000001;
/* Reset CFGR register */
RCC->CFGR = 0x00000000;
/* Reset HSEON, CSSON and PLLON bits */
RCC->CR &= (uint32_t)0xFEF6FFFF;
/* Reset PLLCFGR register */
RCC->PLLCFGR = 0x24003010;
/* Reset HSEBYP bit */
RCC->CR &= (uint32_t)0xFFFBFFFF;
/* Disable all interrupts */
RCC->CIR = 0x00000000;
#ifdef DATA_IN_ExtSRAM
SystemInit_ExtMemCtl();
#endif /* DATA_IN_ExtSRAM */
/* Configure the System clock source, PLL Multiplier and Divider factors,
AHB/APBx prescalers and Flash settings ----------------------------------*/
SetSysClock();
/* Configure the Vector Table location add offset address ------------------*/
#ifdef VECT_TAB_SRAM
SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */
#else
SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */
#endif
}
/**
* @brief Update SystemCoreClock variable according to Clock Register Values.
* The SystemCoreClock variable contains the core clock (HCLK), it can
* be used by the user application to setup the SysTick timer or configure
* other parameters.
*
* @note Each time the core clock (HCLK) changes, this function must be called
* to update SystemCoreClock variable value. Otherwise, any configuration
* based on this variable will be incorrect.
*
* @note - The system frequency computed by this function is not the real
* frequency in the chip. It is calculated based on the predefined
* constant and the selected clock source:
*
* - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*)
*
* - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**)
*
* - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**)
* or HSI_VALUE(*) multiplied/divided by the PLL factors.
*
* (*) HSI_VALUE is a constant defined in stm32f2xx.h file (default value
* 16 MHz) but the real value may vary depending on the variations
* in voltage and temperature.
*
* (**) HSE_VALUE is a constant defined in stm32f2xx.h file (default value
* 25 MHz), user has to ensure that HSE_VALUE is same as the real
* frequency of the crystal used. Otherwise, this function may
* have wrong result.
*
* - The result of this function could be not correct when using fractional
* value for HSE crystal.
*
* @param None
* @retval None
*/
void SystemCoreClockUpdate(void)
{
uint32_t tmp = 0, pllvco = 0, pllp = 2, pllsource = 0, pllm = 2;
/* Get SYSCLK source -------------------------------------------------------*/
tmp = RCC->CFGR & RCC_CFGR_SWS;
switch (tmp)
{
case 0x00: /* HSI used as system clock source */
SystemCoreClock = HSI_VALUE;
break;
case 0x04: /* HSE used as system clock source */
SystemCoreClock = HSE_VALUE;
break;
case 0x08: /* PLL used as system clock source */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N
SYSCLK = PLL_VCO / PLL_P
*/
pllsource = (RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) >> 22;
pllm = RCC->PLLCFGR & RCC_PLLCFGR_PLLM;
if (pllsource != 0)
{
/* HSE used as PLL clock source */
pllvco = (HSE_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
}
else
{
/* HSI used as PLL clock source */
pllvco = (HSI_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
}
pllp = (((RCC->PLLCFGR & RCC_PLLCFGR_PLLP) >>16) + 1 ) *2;
SystemCoreClock = pllvco/pllp;
break;
default:
SystemCoreClock = HSI_VALUE;
break;
}
/* Compute HCLK frequency --------------------------------------------------*/
/* Get HCLK prescaler */
tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)];
/* HCLK frequency */
SystemCoreClock >>= tmp;
}
/**
* @brief Configures the System clock source, PLL Multiplier and Divider factors,
* AHB/APBx prescalers and Flash settings
* @Note This function should be called only once the RCC clock configuration
* is reset to the default reset state (done in SystemInit() function).
* @param None
* @retval None
*/
static void SetSysClock(void)
{
/******************************************************************************/
/* PLL (clocked by HSE) used as System clock source */
/******************************************************************************/
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
/* Enable HSE */
RCC->CR |= ((uint32_t)RCC_CR_HSEON);
/* Wait till HSE is ready and if Time out is reached exit */
do
{
HSEStatus = RCC->CR & RCC_CR_HSERDY;
StartUpCounter++;
} while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
if ((RCC->CR & RCC_CR_HSERDY) != RESET)
{
HSEStatus = (uint32_t)0x01;
}
else
{
HSEStatus = (uint32_t)0x00;
}
if (HSEStatus == (uint32_t)0x01)
{
/* HCLK = SYSCLK / 1*/
RCC->CFGR |= RCC_CFGR_HPRE_DIV1;
/* PCLK2 = HCLK / 2*/
RCC->CFGR |= RCC_CFGR_PPRE2_DIV2;
/* PCLK1 = HCLK / 4*/
RCC->CFGR |= RCC_CFGR_PPRE1_DIV4;
/* Configure the main PLL */
RCC->PLLCFGR = PLL_M | (PLL_N << 6) | (((PLL_P >> 1) -1) << 16) |
(RCC_PLLCFGR_PLLSRC_HSE) | (PLL_Q << 24);
/* Enable the main PLL */
RCC->CR |= RCC_CR_PLLON;
/* Wait till the main PLL is ready */
while((RCC->CR & RCC_CR_PLLRDY) == 0)
{
}
/* Configure Flash prefetch, Instruction cache, Data cache and wait state */
FLASH->ACR = FLASH_ACR_PRFTEN | FLASH_ACR_ICEN | FLASH_ACR_DCEN | FLASH_ACR_LATENCY_3WS;
/* Select the main PLL as system clock source */
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW));
RCC->CFGR |= RCC_CFGR_SW_PLL;
/* Wait till the main PLL is used as system clock source */
while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS ) != RCC_CFGR_SWS_PLL);
{
}
}
else
{ /* If HSE fails to start-up, the application will have wrong clock
configuration. User can add here some code to deal with this error */
}
}
/**
* @brief Setup the external memory controller. Called in startup_stm32f2xx.s
* before jump to __main
* @param None
* @retval None
*/
#ifdef DATA_IN_ExtSRAM
/**
* @brief Setup the external memory controller.
* Called in startup_stm32f2xx.s before jump to main.
* This function configures the external SRAM mounted on STM322xG_EVAL board
* This SRAM will be used as program data memory (including heap and stack).
* @param None
* @retval None
*/
void SystemInit_ExtMemCtl(void)
{
/*-- GPIOs Configuration -----------------------------------------------------*/
/*
+-------------------+--------------------+------------------+------------------+
+ SRAM pins assignment +
+-------------------+--------------------+------------------+------------------+
| PD0 <-> FSMC_D2 | PE0 <-> FSMC_NBL0 | PF0 <-> FSMC_A0 | PG0 <-> FSMC_A10 |
| PD1 <-> FSMC_D3 | PE1 <-> FSMC_NBL1 | PF1 <-> FSMC_A1 | PG1 <-> FSMC_A11 |
| PD4 <-> FSMC_NOE | PE7 <-> FSMC_D4 | PF2 <-> FSMC_A2 | PG2 <-> FSMC_A12 |
| PD5 <-> FSMC_NWE | PE8 <-> FSMC_D5 | PF3 <-> FSMC_A3 | PG3 <-> FSMC_A13 |
| PD8 <-> FSMC_D13 | PE9 <-> FSMC_D6 | PF4 <-> FSMC_A4 | PG4 <-> FSMC_A14 |
| PD9 <-> FSMC_D14 | PE10 <-> FSMC_D7 | PF5 <-> FSMC_A5 | PG5 <-> FSMC_A15 |
| PD10 <-> FSMC_D15 | PE11 <-> FSMC_D8 | PF12 <-> FSMC_A6 | PG9 <-> FSMC_NE2 |
| PD11 <-> FSMC_A16 | PE12 <-> FSMC_D9 | PF13 <-> FSMC_A7 |------------------+
| PD12 <-> FSMC_A17 | PE13 <-> FSMC_D10 | PF14 <-> FSMC_A8 |
| PD14 <-> FSMC_D0 | PE14 <-> FSMC_D11 | PF15 <-> FSMC_A9 |
| PD15 <-> FSMC_D1 | PE15 <-> FSMC_D12 |------------------+
+-------------------+--------------------+
*/
/* Enable GPIOD, GPIOE, GPIOF and GPIOG interface clock */
RCC->AHB1ENR = 0x00000078;
/* Connect PDx pins to FSMC Alternate function */
GPIOD->AFR[0] = 0x00cc00cc;
GPIOD->AFR[1] = 0xcc0ccccc;
/* Configure PDx pins in Alternate function mode */
GPIOD->MODER = 0xa2aa0a0a;
/* Configure PDx pins speed to 100 MHz */
GPIOD->OSPEEDR = 0xf3ff0f0f;
/* Configure PDx pins Output type to push-pull */
GPIOD->OTYPER = 0x00000000;
/* No pull-up, pull-down for PDx pins */
GPIOD->PUPDR = 0x00000000;
/* Connect PEx pins to FSMC Alternate function */
GPIOE->AFR[0] = 0xc00000cc;
GPIOE->AFR[1] = 0xcccccccc;
/* Configure PEx pins in Alternate function mode */
GPIOE->MODER = 0xaaaa800a;
/* Configure PEx pins speed to 100 MHz */
GPIOE->OSPEEDR = 0xffffc00f;
/* Configure PEx pins Output type to push-pull */
GPIOE->OTYPER = 0x00000000;
/* No pull-up, pull-down for PEx pins */
GPIOE->PUPDR = 0x00000000;
/* Connect PFx pins to FSMC Alternate function */
GPIOF->AFR[0] = 0x00cccccc;
GPIOF->AFR[1] = 0xcccc0000;
/* Configure PFx pins in Alternate function mode */
GPIOF->MODER = 0xaa000aaa;
/* Configure PFx pins speed to 100 MHz */
GPIOF->OSPEEDR = 0xff000fff;
/* Configure PFx pins Output type to push-pull */
GPIOF->OTYPER = 0x00000000;
/* No pull-up, pull-down for PFx pins */
GPIOF->PUPDR = 0x00000000;
/* Connect PGx pins to FSMC Alternate function */
GPIOG->AFR[0] = 0x00cccccc;
GPIOG->AFR[1] = 0x000000c0;
/* Configure PGx pins in Alternate function mode */
GPIOG->MODER = 0x00080aaa;
/* Configure PGx pins speed to 100 MHz */
GPIOG->OSPEEDR = 0x000c0fff;
/* Configure PGx pins Output type to push-pull */
GPIOG->OTYPER = 0x00000000;
/* No pull-up, pull-down for PGx pins */
GPIOG->PUPDR = 0x00000000;
/*-- FSMC Configuration ------------------------------------------------------*/
/* Enable the FSMC interface clock */
RCC->AHB3ENR = 0x00000001;
/* Configure and enable Bank1_SRAM2 */
FSMC_Bank1->BTCR[2] = 0x00001015;
FSMC_Bank1->BTCR[3] = 0x00010400;
FSMC_Bank1E->BWTR[2] = 0x0fffffff;
/*
Bank1_SRAM2 is configured as follow:
p.FSMC_AddressSetupTime = 0;
p.FSMC_AddressHoldTime = 0;
p.FSMC_DataSetupTime = 4;
p.FSMC_BusTurnAroundDuration = 1;
p.FSMC_CLKDivision = 0;
p.FSMC_DataLatency = 0;
p.FSMC_AccessMode = FSMC_AccessMode_A;
FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM2;
FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;
FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_PSRAM;
FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b;
FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_AsynchronousWait = FSMC_AsynchronousWait_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState;
FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;
FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;
FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p;
FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;
*/
}
#endif /* DATA_IN_ExtSRAM */
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,359 +0,0 @@
/**
******************************************************************************
* @file CAN/LoopBack/main.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main program body
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup CAN_LoopBack
* @{
*/
/* Private define ------------------------------------------------------------*/
/* Private typedef -----------------------------------------------------------*/
typedef enum {FAILED = 0, PASSED = !FAILED} TestStatus;
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
__IO uint32_t ret = 0; /* for return of the interrupt handling */
volatile TestStatus TestRx;
/* Private function prototypes -----------------------------------------------*/
void NVIC_Config(void);
TestStatus CAN_Polling(void);
TestStatus CAN_Interrupt(void);
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f2xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f2xx.c file
*/
#ifdef USE_CAN1
/* CANx Periph clock enable */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_CAN1, ENABLE);
#else /* USE_CAN2 */
/* CAN1 & 2 Periph clock enable */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_CAN1 | RCC_APB1Periph_CAN2, ENABLE);
#endif /* USE_CAN1 */
/* NVIC Configuration */
NVIC_Config();
/* Configures LED 1..4 */
STM_EVAL_LEDInit(LED1);
STM_EVAL_LEDInit(LED2);
STM_EVAL_LEDInit(LED3);
STM_EVAL_LEDInit(LED4);
/* CAN transmit at 125Kb/s and receive by polling in loopback mode */
TestRx = CAN_Polling();
if (TestRx != FAILED)
{ /* OK */
/* Turn on LED1 */
STM_EVAL_LEDOn(LED1);
}
else
{ /* KO */
/* Turn on LED3 */
STM_EVAL_LEDOn(LED3);
}
/* CAN transmit at 500Kb/s and receive by interrupt in loopback mode */
TestRx = CAN_Interrupt();
if (TestRx != FAILED)
{ /* OK */
/* Turn on LED4 */
STM_EVAL_LEDOn(LED4);
}
else
{ /* KO */
/* Turn on LED2 */
STM_EVAL_LEDOn(LED2);
}
/* Infinite loop */
while (1)
{
}
}
/**
* @brief Configures the CAN, transmit and receive by polling
* @param None
* @retval PASSED if the reception is well done, FAILED in other case
*/
TestStatus CAN_Polling(void)
{
CAN_InitTypeDef CAN_InitStructure;
CAN_FilterInitTypeDef CAN_FilterInitStructure;
CanTxMsg TxMessage;
CanRxMsg RxMessage;
uint32_t i = 0;
uint8_t TransmitMailbox = 0;
/* CAN register init */
CAN_DeInit(CANx);
/* CAN cell init */
CAN_InitStructure.CAN_TTCM = DISABLE;
CAN_InitStructure.CAN_ABOM = DISABLE;
CAN_InitStructure.CAN_AWUM = DISABLE;
CAN_InitStructure.CAN_NART = DISABLE;
CAN_InitStructure.CAN_RFLM = DISABLE;
CAN_InitStructure.CAN_TXFP = DISABLE;
CAN_InitStructure.CAN_Mode = CAN_Mode_LoopBack;
CAN_InitStructure.CAN_SJW = CAN_SJW_1tq;
/* CAN Baudrate = 125kbps (CAN clocked at 30 MHz) */
CAN_InitStructure.CAN_BS1 = CAN_BS1_6tq;
CAN_InitStructure.CAN_BS2 = CAN_BS2_8tq;
CAN_InitStructure.CAN_Prescaler = 16;
CAN_Init(CANx, &CAN_InitStructure);
/* CAN filter init */
#ifdef USE_CAN1
CAN_FilterInitStructure.CAN_FilterNumber = 0;
#else /* USE_CAN2 */
CAN_FilterInitStructure.CAN_FilterNumber = 14;
#endif /* USE_CAN1 */
CAN_FilterInitStructure.CAN_FilterMode = CAN_FilterMode_IdMask;
CAN_FilterInitStructure.CAN_FilterScale = CAN_FilterScale_32bit;
CAN_FilterInitStructure.CAN_FilterIdHigh = 0x0000;
CAN_FilterInitStructure.CAN_FilterIdLow = 0x0000;
CAN_FilterInitStructure.CAN_FilterMaskIdHigh = 0x0000;
CAN_FilterInitStructure.CAN_FilterMaskIdLow = 0x0000;
CAN_FilterInitStructure.CAN_FilterFIFOAssignment = 0;
CAN_FilterInitStructure.CAN_FilterActivation = ENABLE;
CAN_FilterInit(&CAN_FilterInitStructure);
/* transmit */
TxMessage.StdId = 0x11;
TxMessage.RTR = CAN_RTR_DATA;
TxMessage.IDE = CAN_ID_STD;
TxMessage.DLC = 2;
TxMessage.Data[0] = 0xCA;
TxMessage.Data[1] = 0xFE;
TransmitMailbox = CAN_Transmit(CANx, &TxMessage);
i = 0;
while((CAN_TransmitStatus(CANx, TransmitMailbox) != CANTXOK) && (i != 0xFFFF))
{
i++;
}
i = 0;
while((CAN_MessagePending(CANx, CAN_FIFO0) < 1) && (i != 0xFFFF))
{
i++;
}
/* receive */
RxMessage.StdId = 0x00;
RxMessage.IDE = CAN_ID_STD;
RxMessage.DLC = 0;
RxMessage.Data[0] = 0x00;
RxMessage.Data[1] = 0x00;
CAN_Receive(CANx, CAN_FIFO0, &RxMessage);
if (RxMessage.StdId != 0x11)
{
return FAILED;
}
if (RxMessage.IDE != CAN_ID_STD)
{
return FAILED;
}
if (RxMessage.DLC != 2)
{
return FAILED;
}
if ((RxMessage.Data[0]<<8|RxMessage.Data[1]) != 0xCAFE)
{
return FAILED;
}
return PASSED; /* Test Passed */
}
/**
* @brief Configures the CAN, transmit and receive using interrupt.
* @param None
* @retval PASSED if the reception is well done, FAILED in other case
*/
TestStatus CAN_Interrupt(void)
{
CAN_InitTypeDef CAN_InitStructure;
CAN_FilterInitTypeDef CAN_FilterInitStructure;
CanTxMsg TxMessage;
uint32_t i = 0;
/* CAN register init */
CAN_DeInit(CANx);
/* CAN cell init */
CAN_InitStructure.CAN_TTCM = DISABLE;
CAN_InitStructure.CAN_ABOM = DISABLE;
CAN_InitStructure.CAN_AWUM = DISABLE;
CAN_InitStructure.CAN_NART = DISABLE;
CAN_InitStructure.CAN_RFLM = DISABLE;
CAN_InitStructure.CAN_TXFP = DISABLE;
CAN_InitStructure.CAN_Mode = CAN_Mode_LoopBack;
CAN_InitStructure.CAN_SJW = CAN_SJW_1tq;
/* Baudrate = 500 Kbps */
CAN_InitStructure.CAN_BS1 = CAN_BS1_6tq;
CAN_InitStructure.CAN_BS2 = CAN_BS2_8tq;
CAN_InitStructure.CAN_Prescaler = 4;
CAN_Init(CANx, &CAN_InitStructure);
/* CAN filter init */
#ifdef USE_CAN1
CAN_FilterInitStructure.CAN_FilterNumber = 1;
#else /* USE_CAN2 */
CAN_FilterInitStructure.CAN_FilterNumber = 15;
#endif /* USE_CAN1 */
CAN_FilterInitStructure.CAN_FilterMode = CAN_FilterMode_IdMask;
CAN_FilterInitStructure.CAN_FilterScale = CAN_FilterScale_32bit;
CAN_FilterInitStructure.CAN_FilterIdHigh = 0x0000;
CAN_FilterInitStructure.CAN_FilterIdLow = 0x0000;
CAN_FilterInitStructure.CAN_FilterMaskIdHigh = 0x0000;
CAN_FilterInitStructure.CAN_FilterMaskIdLow = 0x0000;
CAN_FilterInitStructure.CAN_FilterFIFOAssignment = CAN_FIFO0;
CAN_FilterInitStructure.CAN_FilterActivation = ENABLE;
CAN_FilterInit(&CAN_FilterInitStructure);
/* CAN FIFO0 message pending interrupt enable */
CAN_ITConfig(CANx, CAN_IT_FMP0, ENABLE);
/* transmit 1 message */
TxMessage.StdId = 0;
TxMessage.ExtId = 0x1234;
TxMessage.IDE = CAN_ID_EXT;
TxMessage.RTR = CAN_RTR_DATA;
TxMessage.DLC = 2;
TxMessage.Data[0] = 0xDE;
TxMessage.Data[1] = 0xCA;
CAN_Transmit(CANx, &TxMessage);
/* initialize the value that will be returned */
ret = 0xFF;
/* receive message with interrupt handling */
i = 0;
while((ret == 0xFF) && (i < 0xFFF))
{
i++;
}
if (i == 0xFFF)
{
ret = 0;
}
/* disable interrupt handling */
CAN_ITConfig(CANx, CAN_IT_FMP0, DISABLE);
return (TestStatus)ret;
}
/**
* @brief Configures the NVIC.
* @param None
* @retval None
*/
void NVIC_Config(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
/* Enable CANx RX0 interrupt IRQ channel */
#ifdef USE_CAN1
NVIC_InitStructure.NVIC_IRQChannel = CAN1_RX0_IRQn;
#else /* USE_CAN2 */
NVIC_InitStructure.NVIC_IRQChannel = CAN2_RX0_IRQn;
#endif /* USE_CAN1 */
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,52 +0,0 @@
/**
******************************************************************************
* @file CAN/LoopBack/main.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Header for main.c module
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __MAIN_H
#define __MAIN_H
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
#include "stm322xg_eval.h"
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
#define USE_CAN1
/* #define USE_CAN2 */
#ifdef USE_CAN1
#define CANx CAN1
#else /* USE_CAN2 */
#define CANx CAN2
#endif /* USE_CAN1 */
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
#endif /* __MAIN_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,85 +0,0 @@
/**
@page CAN_LoopBack CAN LoopBack example
@verbatim
******************** (C) COPYRIGHT 2012 STMicroelectronics *******************
* @file CAN/LoopBack/readme.txt
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Description of the CAN LoopBack example.
******************************************************************************
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
@endverbatim
@par Example Description
This example provides a description of how to set a communication with the CAN
in loopback mode.
The CAN cell first performs a transmission and a reception of a standard data
frame by polling at 125 Kbps. The received frame is checked and some LEDs light
up to indicate whether the communication was successful. Then, an extended data
frame is transmitted at 500 Kbps. Reception is done in the interrupt handler
when the message becomes pending in the FIFO. Finally, the LEDs indicate if both
transmission and reception have been successful.
User can select CAN1 or CAN2 cell using the defines in main.h :
@code
#define USE_CAN1
/* #define USE_CAN2*/
@endcode
@par Directory contents
- CAN/LoopBack/system_stm32f2xx.c STM32F2xx system clock configuration file
- CAN/LoopBack/stm32f2xx_conf.h Library Configuration file
- CAN/LoopBack/stm32f2xx_it.h Interrupt handlers header file
- CAN/LoopBack/stm32f2xx_it.c Interrupt handlers
- CAN/LoopBack/main.c Main program
@note The "system_stm32f2xx.c" is generated by an automatic clock configuration
tool and can be easily customized to your own configuration.
To select different clock setup, use the "STM32F2xx_Clock_Configuration_V1.0.0.xls"
provided with the AN3362 package available on <a href="http://www.st.com/internet/mcu/family/141.jsp"> ST Microcontrollers </a>
@par Hardware and Software environment
- This example runs on STM32F2xx Devices.
- This example has been tested with STM322xG-EVAL RevB and can be easily tailored
to any other development board.
- STM322xG-EVAL Set-up
- Use LED1, LED2, LED3 and LED4 connected respectively to PG.06, PG.08, PI.09
and PC.07 pins
@par How to use it ?
In order to make the program work, you must do the following :
- Copy all source files from this example folder to the template folder under
Project\STM32F2xx_StdPeriph_Template
- Open your preferred toolchain
- Rebuild all files and load your image into target memory
- Run the example
* <h3><center>&copy; COPYRIGHT STMicroelectronics</center></h3>
*/
@@ -1,94 +0,0 @@
/**
******************************************************************************
* @file CAN/LoopBack/stm32f2xx_conf.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Library configuration file.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_CONF_H
#define __STM32F2xx_CONF_H
/* Includes ------------------------------------------------------------------*/
/* Uncomment the line below to enable peripheral header file inclusion */
#include "stm32f2xx_adc.h"
#include "stm32f2xx_can.h"
#include "stm32f2xx_crc.h"
#include "stm32f2xx_cryp.h"
#include "stm32f2xx_dac.h"
#include "stm32f2xx_dbgmcu.h"
#include "stm32f2xx_dcmi.h"
#include "stm32f2xx_dma.h"
#include "stm32f2xx_exti.h"
#include "stm32f2xx_flash.h"
#include "stm32f2xx_fsmc.h"
#include "stm32f2xx_hash.h"
#include "stm32f2xx_gpio.h"
#include "stm32f2xx_i2c.h"
#include "stm32f2xx_iwdg.h"
#include "stm32f2xx_pwr.h"
#include "stm32f2xx_rcc.h"
#include "stm32f2xx_rng.h"
#include "stm32f2xx_rtc.h"
#include "stm32f2xx_sdio.h"
#include "stm32f2xx_spi.h"
#include "stm32f2xx_syscfg.h"
#include "stm32f2xx_tim.h"
#include "stm32f2xx_usart.h"
#include "stm32f2xx_wwdg.h"
#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* If an external clock source is used, then the value of the following define
should be set to the value of the external clock source, else, if no external
clock is used, keep this define commented */
/*#define I2S_EXTERNAL_CLOCK_VAL 12288000 */ /* Value of the external clock in Hz */
/* Uncomment the line below to expanse the "assert_param" macro in the
Standard Peripheral Library drivers code */
/* #define USE_FULL_ASSERT 1 */
/* Exported macro ------------------------------------------------------------*/
#ifdef USE_FULL_ASSERT
/**
* @brief The assert_param macro is used for function's parameters check.
* @param expr: If expr is false, it calls assert_failed function
* which reports the name of the source file and the source
* line number of the call that failed.
* If expr is true, it returns no value.
* @retval None
*/
#define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__))
/* Exported functions ------------------------------------------------------- */
void assert_failed(uint8_t* file, uint32_t line);
#else
#define assert_param(expr) ((void)0)
#endif /* USE_FULL_ASSERT */
#endif /* __STM32F2xx_CONF_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,240 +0,0 @@
/**
******************************************************************************
* @file CAN/LoopBack/stm32f2xx_it.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main Interrupt Service Routines.
* This file provides template for all exceptions handler and
* peripherals interrupt service routine.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx_it.h"
#include "main.h"
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup CAN_LoopBack
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
extern __IO uint32_t ret;
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/******************************************************************************/
/* Cortex-M3 Processor Exceptions Handlers */
/******************************************************************************/
/**
* @brief This function handles NMI exception.
* @param None
* @retval None
*/
void NMI_Handler(void)
{
}
/**
* @brief This function handles Hard Fault exception.
* @param None
* @retval None
*/
void HardFault_Handler(void)
{
/* Go to infinite loop when Hard Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Memory Manage exception.
* @param None
* @retval None
*/
void MemManage_Handler(void)
{
/* Go to infinite loop when Memory Manage exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Bus Fault exception.
* @param None
* @retval None
*/
void BusFault_Handler(void)
{
/* Go to infinite loop when Bus Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Usage Fault exception.
* @param None
* @retval None
*/
void UsageFault_Handler(void)
{
/* Go to infinite loop when Usage Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles SVCall exception.
* @param None
* @retval None
*/
void SVC_Handler(void)
{
}
/**
* @brief This function handles Debug Monitor exception.
* @param None
* @retval None
*/
void DebugMon_Handler(void)
{
}
/**
* @brief This function handles PendSVC exception.
* @param None
* @retval None
*/
void PendSV_Handler(void)
{
}
/**
* @brief This function handles SysTick Handler.
* @param None
* @retval None
*/
void SysTick_Handler(void)
{
}
/******************************************************************************/
/* STM32F2xx Peripherals Interrupt Handlers */
/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */
/* available peripheral interrupt handler's name please refer to the startup */
/* file (startup_stm32f2xx.s). */
/******************************************************************************/
/**
* @brief This function handles PPP interrupt request.
* @param None
* @retval None
*/
/*void PPP_IRQHandler(void)
{
}*/
#ifdef USE_CAN1
/**
* @brief This function handles CAN1 RX0 request.
* @param None
* @retval None
*/
void CAN1_RX0_IRQHandler(void)
{
CanRxMsg RxMessage;
RxMessage.StdId = 0x00;
RxMessage.ExtId = 0x00;
RxMessage.IDE = 0;
RxMessage.DLC = 0;
RxMessage.FMI = 0;
RxMessage.Data[0] = 0x00;
RxMessage.Data[1] = 0x00;
CAN_Receive(CAN1, CAN_FIFO0, &RxMessage);
if((RxMessage.ExtId == 0x1234) && (RxMessage.IDE == CAN_ID_EXT)
&& (RxMessage.DLC == 2) && ((RxMessage.Data[1]|RxMessage.Data[0]<<8) == 0xDECA))
{
ret = 1;
}
else
{
ret = 0;
}
}
#endif /* USE_CAN1 */
#ifdef USE_CAN2
/**
* @brief This function handles CAN2 RX0 request.
* @param None
* @retval None
*/
void CAN2_RX0_IRQHandler(void)
{
CanRxMsg RxMessage;
RxMessage.StdId = 0x00;
RxMessage.ExtId = 0x00;
RxMessage.IDE = 0;
RxMessage.DLC = 0;
RxMessage.FMI = 0;
RxMessage.Data[0] = 0x00;
RxMessage.Data[1] = 0x00;
CAN_Receive(CAN2, CAN_FIFO0, &RxMessage);
if((RxMessage.ExtId == 0x1234) && (RxMessage.IDE == CAN_ID_EXT)
&& (RxMessage.DLC == 2) && ((RxMessage.Data[1]|RxMessage.Data[0]<<8) == 0xDECA))
{
ret = 1;
}
else
{
ret = 0;
}
}
#endif /* USE_CAN2 */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,62 +0,0 @@
/**
******************************************************************************
* @file CAN/LoopBack/stm32f2xx_it.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief This file contains the headers of the interrupt handlers.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_IT_H
#define __STM32F2xx_IT_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
void NMI_Handler(void);
void HardFault_Handler(void);
void MemManage_Handler(void);
void BusFault_Handler(void);
void UsageFault_Handler(void);
void SVC_Handler(void);
void DebugMon_Handler(void);
void PendSV_Handler(void);
void SysTick_Handler(void);
void CAN1_RX0_IRQHandler(void);
void CAN2_RX0_IRQHandler(void);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F2xx_IT_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,542 +0,0 @@
/**
******************************************************************************
* @file system_stm32f2xx.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File.
* This file contains the system clock configuration for STM32F2xx devices,
* and is generated by the clock configuration tool
* "STM32f2xx_Clock_Configuration_V1.0.0.xls"
*
* 1. This file provides two functions and one global variable to be called from
* user application:
* - SystemInit(): Setups the system clock (System clock source, PLL Multiplier
* and Divider factors, AHB/APBx prescalers and Flash settings),
* depending on the configuration made in the clock xls tool.
* This function is called at startup just after reset and
* before branch to main program. This call is made inside
* the "startup_stm32f2xx.s" file.
*
* - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
* by the user application to setup the SysTick
* timer or configure other parameters.
*
* - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
* be called whenever the core clock is changed
* during program execution.
*
* 2. After each device reset the HSI (16 MHz) is used as system clock source.
* Then SystemInit() function is called, in "startup_stm32f2xx.s" file, to
* configure the system clock before to branch to main program.
*
* 3. If the system clock source selected by user fails to startup, the SystemInit()
* function will do nothing and HSI still used as system clock source. User can
* add some code to deal with this issue inside the SetSysClock() function.
*
* 4. The default value of HSE crystal is set to 25MHz, refer to "HSE_VALUE" define
* in "stm32f2xx.h" file. When HSE is used as system clock source, directly or
* through PLL, and you are using different crystal you have to adapt the HSE
* value to your own configuration.
*
* 5. This file configures the system clock as follows:
*=============================================================================
*=============================================================================
* Supported STM32F2xx device revision | Rev B and Y
*-----------------------------------------------------------------------------
* System Clock source | PLL (HSE)
*-----------------------------------------------------------------------------
* SYSCLK(Hz) | 120000000
*-----------------------------------------------------------------------------
* HCLK(Hz) | 120000000
*-----------------------------------------------------------------------------
* AHB Prescaler | 1
*-----------------------------------------------------------------------------
* APB1 Prescaler | 4
*-----------------------------------------------------------------------------
* APB2 Prescaler | 2
*-----------------------------------------------------------------------------
* HSE Frequency(Hz) | 25000000
*-----------------------------------------------------------------------------
* PLL_M | 25
*-----------------------------------------------------------------------------
* PLL_N | 240
*-----------------------------------------------------------------------------
* PLL_P | 2
*-----------------------------------------------------------------------------
* PLL_Q | 5
*-----------------------------------------------------------------------------
* PLLI2S_N | NA
*-----------------------------------------------------------------------------
* PLLI2S_R | NA
*-----------------------------------------------------------------------------
* I2S input clock | NA
*-----------------------------------------------------------------------------
* VDD(V) | 3.3
*-----------------------------------------------------------------------------
* Flash Latency(WS) | 3
*-----------------------------------------------------------------------------
* Prefetch Buffer | ON
*-----------------------------------------------------------------------------
* Instruction cache | ON
*-----------------------------------------------------------------------------
* Data cache | ON
*-----------------------------------------------------------------------------
* Require 48MHz for USB OTG FS, | Enabled
* SDIO and RNG clock |
*-----------------------------------------------------------------------------
*=============================================================================
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/** @addtogroup CMSIS
* @{
*/
/** @addtogroup stm32f2xx_system
* @{
*/
/** @addtogroup STM32F2xx_System_Private_Includes
* @{
*/
#include "stm32f2xx.h"
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Defines
* @{
*/
/*!< Uncomment the following line if you need to use external SRAM mounted
on STM322xG_EVAL board as data memory */
/* #define DATA_IN_ExtSRAM */
/*!< Uncomment the following line if you need to relocate your vector Table in
Internal SRAM. */
/* #define VECT_TAB_SRAM */
#define VECT_TAB_OFFSET 0x00 /*!< Vector Table base offset field.
This value must be a multiple of 0x200. */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N */
#define PLL_M 25
#define PLL_N 240
/* SYSCLK = PLL_VCO / PLL_P */
#define PLL_P 2
/* USB OTG FS, SDIO and RNG Clock = PLL_VCO / PLLQ */
#define PLL_Q 5
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Macros
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Variables
* @{
*/
uint32_t SystemCoreClock = 120000000;
__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_FunctionPrototypes
* @{
*/
static void SetSysClock(void);
#ifdef DATA_IN_ExtSRAM
static void SystemInit_ExtMemCtl(void);
#endif /* DATA_IN_ExtSRAM */
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Functions
* @{
*/
/**
* @brief Setup the microcontroller system
* Initialize the Embedded Flash Interface, the PLL and update the
* SystemFrequency variable.
* @param None
* @retval None
*/
void SystemInit(void)
{
/* Reset the RCC clock configuration to the default reset state ------------*/
/* Set HSION bit */
RCC->CR |= (uint32_t)0x00000001;
/* Reset CFGR register */
RCC->CFGR = 0x00000000;
/* Reset HSEON, CSSON and PLLON bits */
RCC->CR &= (uint32_t)0xFEF6FFFF;
/* Reset PLLCFGR register */
RCC->PLLCFGR = 0x24003010;
/* Reset HSEBYP bit */
RCC->CR &= (uint32_t)0xFFFBFFFF;
/* Disable all interrupts */
RCC->CIR = 0x00000000;
#ifdef DATA_IN_ExtSRAM
SystemInit_ExtMemCtl();
#endif /* DATA_IN_ExtSRAM */
/* Configure the System clock source, PLL Multiplier and Divider factors,
AHB/APBx prescalers and Flash settings ----------------------------------*/
SetSysClock();
/* Configure the Vector Table location add offset address ------------------*/
#ifdef VECT_TAB_SRAM
SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */
#else
SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */
#endif
}
/**
* @brief Update SystemCoreClock variable according to Clock Register Values.
* The SystemCoreClock variable contains the core clock (HCLK), it can
* be used by the user application to setup the SysTick timer or configure
* other parameters.
*
* @note Each time the core clock (HCLK) changes, this function must be called
* to update SystemCoreClock variable value. Otherwise, any configuration
* based on this variable will be incorrect.
*
* @note - The system frequency computed by this function is not the real
* frequency in the chip. It is calculated based on the predefined
* constant and the selected clock source:
*
* - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*)
*
* - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**)
*
* - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**)
* or HSI_VALUE(*) multiplied/divided by the PLL factors.
*
* (*) HSI_VALUE is a constant defined in stm32f2xx.h file (default value
* 16 MHz) but the real value may vary depending on the variations
* in voltage and temperature.
*
* (**) HSE_VALUE is a constant defined in stm32f2xx.h file (default value
* 25 MHz), user has to ensure that HSE_VALUE is same as the real
* frequency of the crystal used. Otherwise, this function may
* have wrong result.
*
* - The result of this function could be not correct when using fractional
* value for HSE crystal.
*
* @param None
* @retval None
*/
void SystemCoreClockUpdate(void)
{
uint32_t tmp = 0, pllvco = 0, pllp = 2, pllsource = 0, pllm = 2;
/* Get SYSCLK source -------------------------------------------------------*/
tmp = RCC->CFGR & RCC_CFGR_SWS;
switch (tmp)
{
case 0x00: /* HSI used as system clock source */
SystemCoreClock = HSI_VALUE;
break;
case 0x04: /* HSE used as system clock source */
SystemCoreClock = HSE_VALUE;
break;
case 0x08: /* PLL used as system clock source */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N
SYSCLK = PLL_VCO / PLL_P
*/
pllsource = (RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) >> 22;
pllm = RCC->PLLCFGR & RCC_PLLCFGR_PLLM;
if (pllsource != 0)
{
/* HSE used as PLL clock source */
pllvco = (HSE_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
}
else
{
/* HSI used as PLL clock source */
pllvco = (HSI_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
}
pllp = (((RCC->PLLCFGR & RCC_PLLCFGR_PLLP) >>16) + 1 ) *2;
SystemCoreClock = pllvco/pllp;
break;
default:
SystemCoreClock = HSI_VALUE;
break;
}
/* Compute HCLK frequency --------------------------------------------------*/
/* Get HCLK prescaler */
tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)];
/* HCLK frequency */
SystemCoreClock >>= tmp;
}
/**
* @brief Configures the System clock source, PLL Multiplier and Divider factors,
* AHB/APBx prescalers and Flash settings
* @Note This function should be called only once the RCC clock configuration
* is reset to the default reset state (done in SystemInit() function).
* @param None
* @retval None
*/
static void SetSysClock(void)
{
/******************************************************************************/
/* PLL (clocked by HSE) used as System clock source */
/******************************************************************************/
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
/* Enable HSE */
RCC->CR |= ((uint32_t)RCC_CR_HSEON);
/* Wait till HSE is ready and if Time out is reached exit */
do
{
HSEStatus = RCC->CR & RCC_CR_HSERDY;
StartUpCounter++;
} while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
if ((RCC->CR & RCC_CR_HSERDY) != RESET)
{
HSEStatus = (uint32_t)0x01;
}
else
{
HSEStatus = (uint32_t)0x00;
}
if (HSEStatus == (uint32_t)0x01)
{
/* HCLK = SYSCLK / 1*/
RCC->CFGR |= RCC_CFGR_HPRE_DIV1;
/* PCLK2 = HCLK / 2*/
RCC->CFGR |= RCC_CFGR_PPRE2_DIV2;
/* PCLK1 = HCLK / 4*/
RCC->CFGR |= RCC_CFGR_PPRE1_DIV4;
/* Configure the main PLL */
RCC->PLLCFGR = PLL_M | (PLL_N << 6) | (((PLL_P >> 1) -1) << 16) |
(RCC_PLLCFGR_PLLSRC_HSE) | (PLL_Q << 24);
/* Enable the main PLL */
RCC->CR |= RCC_CR_PLLON;
/* Wait till the main PLL is ready */
while((RCC->CR & RCC_CR_PLLRDY) == 0)
{
}
/* Configure Flash prefetch, Instruction cache, Data cache and wait state */
FLASH->ACR = FLASH_ACR_PRFTEN | FLASH_ACR_ICEN | FLASH_ACR_DCEN | FLASH_ACR_LATENCY_3WS;
/* Select the main PLL as system clock source */
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW));
RCC->CFGR |= RCC_CFGR_SW_PLL;
/* Wait till the main PLL is used as system clock source */
while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS ) != RCC_CFGR_SWS_PLL);
{
}
}
else
{ /* If HSE fails to start-up, the application will have wrong clock
configuration. User can add here some code to deal with this error */
}
}
/**
* @brief Setup the external memory controller. Called in startup_stm32f2xx.s
* before jump to __main
* @param None
* @retval None
*/
#ifdef DATA_IN_ExtSRAM
/**
* @brief Setup the external memory controller.
* Called in startup_stm32f2xx.s before jump to main.
* This function configures the external SRAM mounted on STM322xG_EVAL board
* This SRAM will be used as program data memory (including heap and stack).
* @param None
* @retval None
*/
void SystemInit_ExtMemCtl(void)
{
/*-- GPIOs Configuration -----------------------------------------------------*/
/*
+-------------------+--------------------+------------------+------------------+
+ SRAM pins assignment +
+-------------------+--------------------+------------------+------------------+
| PD0 <-> FSMC_D2 | PE0 <-> FSMC_NBL0 | PF0 <-> FSMC_A0 | PG0 <-> FSMC_A10 |
| PD1 <-> FSMC_D3 | PE1 <-> FSMC_NBL1 | PF1 <-> FSMC_A1 | PG1 <-> FSMC_A11 |
| PD4 <-> FSMC_NOE | PE7 <-> FSMC_D4 | PF2 <-> FSMC_A2 | PG2 <-> FSMC_A12 |
| PD5 <-> FSMC_NWE | PE8 <-> FSMC_D5 | PF3 <-> FSMC_A3 | PG3 <-> FSMC_A13 |
| PD8 <-> FSMC_D13 | PE9 <-> FSMC_D6 | PF4 <-> FSMC_A4 | PG4 <-> FSMC_A14 |
| PD9 <-> FSMC_D14 | PE10 <-> FSMC_D7 | PF5 <-> FSMC_A5 | PG5 <-> FSMC_A15 |
| PD10 <-> FSMC_D15 | PE11 <-> FSMC_D8 | PF12 <-> FSMC_A6 | PG9 <-> FSMC_NE2 |
| PD11 <-> FSMC_A16 | PE12 <-> FSMC_D9 | PF13 <-> FSMC_A7 |------------------+
| PD12 <-> FSMC_A17 | PE13 <-> FSMC_D10 | PF14 <-> FSMC_A8 |
| PD14 <-> FSMC_D0 | PE14 <-> FSMC_D11 | PF15 <-> FSMC_A9 |
| PD15 <-> FSMC_D1 | PE15 <-> FSMC_D12 |------------------+
+-------------------+--------------------+
*/
/* Enable GPIOD, GPIOE, GPIOF and GPIOG interface clock */
RCC->AHB1ENR = 0x00000078;
/* Connect PDx pins to FSMC Alternate function */
GPIOD->AFR[0] = 0x00cc00cc;
GPIOD->AFR[1] = 0xcc0ccccc;
/* Configure PDx pins in Alternate function mode */
GPIOD->MODER = 0xa2aa0a0a;
/* Configure PDx pins speed to 100 MHz */
GPIOD->OSPEEDR = 0xf3ff0f0f;
/* Configure PDx pins Output type to push-pull */
GPIOD->OTYPER = 0x00000000;
/* No pull-up, pull-down for PDx pins */
GPIOD->PUPDR = 0x00000000;
/* Connect PEx pins to FSMC Alternate function */
GPIOE->AFR[0] = 0xc00000cc;
GPIOE->AFR[1] = 0xcccccccc;
/* Configure PEx pins in Alternate function mode */
GPIOE->MODER = 0xaaaa800a;
/* Configure PEx pins speed to 100 MHz */
GPIOE->OSPEEDR = 0xffffc00f;
/* Configure PEx pins Output type to push-pull */
GPIOE->OTYPER = 0x00000000;
/* No pull-up, pull-down for PEx pins */
GPIOE->PUPDR = 0x00000000;
/* Connect PFx pins to FSMC Alternate function */
GPIOF->AFR[0] = 0x00cccccc;
GPIOF->AFR[1] = 0xcccc0000;
/* Configure PFx pins in Alternate function mode */
GPIOF->MODER = 0xaa000aaa;
/* Configure PFx pins speed to 100 MHz */
GPIOF->OSPEEDR = 0xff000fff;
/* Configure PFx pins Output type to push-pull */
GPIOF->OTYPER = 0x00000000;
/* No pull-up, pull-down for PFx pins */
GPIOF->PUPDR = 0x00000000;
/* Connect PGx pins to FSMC Alternate function */
GPIOG->AFR[0] = 0x00cccccc;
GPIOG->AFR[1] = 0x000000c0;
/* Configure PGx pins in Alternate function mode */
GPIOG->MODER = 0x00080aaa;
/* Configure PGx pins speed to 100 MHz */
GPIOG->OSPEEDR = 0x000c0fff;
/* Configure PGx pins Output type to push-pull */
GPIOG->OTYPER = 0x00000000;
/* No pull-up, pull-down for PGx pins */
GPIOG->PUPDR = 0x00000000;
/*-- FSMC Configuration ------------------------------------------------------*/
/* Enable the FSMC interface clock */
RCC->AHB3ENR = 0x00000001;
/* Configure and enable Bank1_SRAM2 */
FSMC_Bank1->BTCR[2] = 0x00001015;
FSMC_Bank1->BTCR[3] = 0x00010400;
FSMC_Bank1E->BWTR[2] = 0x0fffffff;
/*
Bank1_SRAM2 is configured as follow:
p.FSMC_AddressSetupTime = 0;
p.FSMC_AddressHoldTime = 0;
p.FSMC_DataSetupTime = 4;
p.FSMC_BusTurnAroundDuration = 1;
p.FSMC_CLKDivision = 0;
p.FSMC_DataLatency = 0;
p.FSMC_AccessMode = FSMC_AccessMode_A;
FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM2;
FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;
FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_PSRAM;
FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b;
FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_AsynchronousWait = FSMC_AsynchronousWait_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState;
FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;
FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;
FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p;
FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;
*/
}
#endif /* DATA_IN_ExtSRAM */
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,308 +0,0 @@
/**
******************************************************************************
* @file CAN/Networking/main.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main program body
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup CAN_Networking
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define KEY_PRESSED 0x00
#define KEY_NOT_PRESSED 0x01
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
CAN_InitTypeDef CAN_InitStructure;
CAN_FilterInitTypeDef CAN_FilterInitStructure;
CanTxMsg TxMessage;
uint8_t KeyNumber = 0x0;
/* Private function prototypes -----------------------------------------------*/
void NVIC_Config(void);
void CAN_Config(void);
void Init_RxMes(CanRxMsg *RxMessage);
void Delay(void);
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f2xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f2xx.c file
*/
/* NVIC configuration */
NVIC_Config();
/* Configures LED 1..4 */
STM_EVAL_LEDInit(LED1);
STM_EVAL_LEDInit(LED2);
STM_EVAL_LEDInit(LED3);
STM_EVAL_LEDInit(LED4);
/* Configure Push button key */
STM_EVAL_PBInit(BUTTON_KEY, BUTTON_MODE_GPIO);
/* CAN configuration */
CAN_Config();
/* Infinite loop */
while(1)
{
while(STM_EVAL_PBGetState(BUTTON_KEY) == KEY_PRESSED)
{
if(KeyNumber == 0x4)
{
KeyNumber = 0x00;
}
else
{
LED_Display(++KeyNumber);
TxMessage.Data[0] = KeyNumber;
CAN_Transmit(CANx, &TxMessage);
Delay();
while(STM_EVAL_PBGetState(BUTTON_KEY) != KEY_NOT_PRESSED)
{
}
}
}
}
}
/**
* @brief Configures the CAN.
* @param None
* @retval None
*/
void CAN_Config(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* CAN GPIOs configuration **************************************************/
/* Enable GPIO clock */
RCC_AHB1PeriphClockCmd(CAN_GPIO_CLK, ENABLE);
/* Connect CAN pins to AF9 */
GPIO_PinAFConfig(CAN_GPIO_PORT, CAN_RX_SOURCE, CAN_AF_PORT);
GPIO_PinAFConfig(CAN_GPIO_PORT, CAN_TX_SOURCE, CAN_AF_PORT);
/* Configure CAN RX and TX pins */
GPIO_InitStructure.GPIO_Pin = CAN_RX_PIN | CAN_TX_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(CAN_GPIO_PORT, &GPIO_InitStructure);
/* CAN configuration ********************************************************/
/* Enable CAN clock */
RCC_APB1PeriphClockCmd(CAN_CLK, ENABLE);
/* CAN register init */
CAN_DeInit(CANx);
/* CAN cell init */
CAN_InitStructure.CAN_TTCM = DISABLE;
CAN_InitStructure.CAN_ABOM = DISABLE;
CAN_InitStructure.CAN_AWUM = DISABLE;
CAN_InitStructure.CAN_NART = DISABLE;
CAN_InitStructure.CAN_RFLM = DISABLE;
CAN_InitStructure.CAN_TXFP = DISABLE;
CAN_InitStructure.CAN_Mode = CAN_Mode_Normal;
CAN_InitStructure.CAN_SJW = CAN_SJW_1tq;
/* CAN Baudrate = 1MBps (CAN clocked at 30 MHz) */
CAN_InitStructure.CAN_BS1 = CAN_BS1_6tq;
CAN_InitStructure.CAN_BS2 = CAN_BS2_8tq;
CAN_InitStructure.CAN_Prescaler = 2;
CAN_Init(CANx, &CAN_InitStructure);
/* CAN filter init */
#ifdef USE_CAN1
CAN_FilterInitStructure.CAN_FilterNumber = 0;
#else /* USE_CAN2 */
CAN_FilterInitStructure.CAN_FilterNumber = 14;
#endif /* USE_CAN1 */
CAN_FilterInitStructure.CAN_FilterMode = CAN_FilterMode_IdMask;
CAN_FilterInitStructure.CAN_FilterScale = CAN_FilterScale_32bit;
CAN_FilterInitStructure.CAN_FilterIdHigh = 0x0000;
CAN_FilterInitStructure.CAN_FilterIdLow = 0x0000;
CAN_FilterInitStructure.CAN_FilterMaskIdHigh = 0x0000;
CAN_FilterInitStructure.CAN_FilterMaskIdLow = 0x0000;
CAN_FilterInitStructure.CAN_FilterFIFOAssignment = 0;
CAN_FilterInitStructure.CAN_FilterActivation = ENABLE;
CAN_FilterInit(&CAN_FilterInitStructure);
/* Transmit Structure preparation */
TxMessage.StdId = 0x321;
TxMessage.ExtId = 0x01;
TxMessage.RTR = CAN_RTR_DATA;
TxMessage.IDE = CAN_ID_STD;
TxMessage.DLC = 1;
/* Enable FIFO 0 message pending Interrupt */
CAN_ITConfig(CANx, CAN_IT_FMP0, ENABLE);
}
/**
* @brief Configures the NVIC for CAN.
* @param None
* @retval None
*/
void NVIC_Config(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
#ifdef USE_CAN1
NVIC_InitStructure.NVIC_IRQChannel = CAN1_RX0_IRQn;
#else /* USE_CAN2 */
NVIC_InitStructure.NVIC_IRQChannel = CAN2_RX0_IRQn;
#endif /* USE_CAN1 */
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
/**
* @brief Initializes the Rx Message.
* @param RxMessage: pointer to the message to initialize
* @retval None
*/
void Init_RxMes(CanRxMsg *RxMessage)
{
uint8_t i = 0;
RxMessage->StdId = 0x00;
RxMessage->ExtId = 0x00;
RxMessage->IDE = CAN_ID_STD;
RxMessage->DLC = 0;
RxMessage->FMI = 0;
for (i = 0;i < 8;i++)
{
RxMessage->Data[i] = 0x00;
}
}
/**
* @brief Turn ON/OFF the dedicated led
* @param Ledstatus: Led number from 0 to 3.
* @retval None
*/
void LED_Display(uint8_t Ledstatus)
{
/* Turn off all leds */
STM_EVAL_LEDOff(LED1);
STM_EVAL_LEDOff(LED2);
STM_EVAL_LEDOff(LED3);
STM_EVAL_LEDOff(LED4);
switch(Ledstatus)
{
case(1):
STM_EVAL_LEDOn(LED1);
break;
case(2):
STM_EVAL_LEDOn(LED2);
break;
case(3):
STM_EVAL_LEDOn(LED3);
break;
case(4):
STM_EVAL_LEDOn(LED4);
break;
default:
break;
}
}
/**
* @brief Delay
* @param None
* @retval None
*/
void Delay(void)
{
uint16_t nTime = 0x0000;
for(nTime = 0; nTime <0xFFF; nTime++)
{
}
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,69 +0,0 @@
/**
******************************************************************************
* @file CAN/Networking/main.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Header for main.c module
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __MAIN_H
#define __MAIN_H
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
#include "stm322xg_eval.h"
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
#define USE_CAN1
/* #define USE_CAN2 */
#ifdef USE_CAN1
#define CANx CAN1
#define CAN_CLK RCC_APB1Periph_CAN1
#define CAN_RX_PIN GPIO_Pin_0
#define CAN_TX_PIN GPIO_Pin_1
#define CAN_GPIO_PORT GPIOD
#define CAN_GPIO_CLK RCC_AHB1Periph_GPIOD
#define CAN_AF_PORT GPIO_AF_CAN1
#define CAN_RX_SOURCE GPIO_PinSource0
#define CAN_TX_SOURCE GPIO_PinSource1
#else /*USE_CAN2*/
#define CANx CAN2
#define CAN_CLK (RCC_APB1Periph_CAN1 | RCC_APB1Periph_CAN2)
#define CAN_RX_PIN GPIO_Pin_5
#define CAN_TX_PIN GPIO_Pin_13
#define CAN_GPIO_PORT GPIOB
#define CAN_GPIO_CLK RCC_AHB1Periph_GPIOB
#define CAN_AF_PORT GPIO_AF_CAN2
#define CAN_RX_SOURCE GPIO_PinSource5
#define CAN_TX_SOURCE GPIO_PinSource13
#endif /* USE_CAN1 */
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
void LED_Display(uint8_t Ledstatus);
#endif /* __MAIN_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,118 +0,0 @@
/**
@page CAN_Networking CAN Networking example
@verbatim
******************** (C) COPYRIGHT 2012 STMicroelectronics *******************
* @file CAN/Networking/readme.txt
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Description of the CAN Networking example.
******************************************************************************
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
@endverbatim
@par Example Description
This example shows how to configure the CAN peripheral to send and receive
CAN frames in normal mode. The sent frames are used to control Leds by pressing
key push button.
The CAN serial communication link is a bus to which a number of units may be
connected. This number has no theoretical limit. Practically the total number
of units will be limited by delay times and/or electrical loads on the bus line.
This program behaves as follows:
- After reset LED1 is ON
- By Pressing on KEY Button : LED2 turns ON and all other Leds are OFF, on the N
eval boards connected to the bus.
- Press on KEY Button again to send CAN Frame to command LEDn+1 ON, all other Leds
are OFF on the N eval boards.
@note This example is tested with a bus of 3 units. The same program example is
loaded in all units to send and receive frames.
@note Any unit in the CAN bus may play the role of sender (by pressing KEY button)
or receiver.
The CAN is configured as follow:
- Bit Rate = 1 Mbit/s
- CAN Clock = external clock (HSE)
- ID Filter = All identifiers are allowed
- RTR = Data
- DLC = 1 byte
- Data: Led number that should be turned ON
User can select CAN1 or CAN2 cell using the defines in main.h :
@code
#define USE_CAN1
/* #define USE_CAN2*/
@endcode
@par Directory contents
- CAN/Networking/system_stm32f2xx.c STM32F2xx system clock configuration file
- CAN/Networking/stm32f2xx_conf.h Library Configuration file
- CAN/Networking/stm32f2xx_it.h Interrupt handlers header file
- CAN/Networking/stm32f2xx_it.c Interrupt handlers
- CAN/Networking/main.c Main program
@note The "system_stm32f2xx.c" is generated by an automatic clock configuration
tool and can be easily customized to your own configuration.
To select different clock setup, use the "STM32F2xx_Clock_Configuration_V1.0.0.xls"
provided with the AN3362 package available on <a href="http://www.st.com/internet/mcu/family/141.jsp"> ST Microcontrollers </a>
@par Hardware and Software environment
- This example runs on STM32F2xx Devices.
- This example has been tested with STM322xG-EVAL RevB and can be easily tailored
to any other development board.
- STM322xG-EVAL Set-up
- Use LED1, LED2, LED3 and LED4 connected respectively to PG.06, PG.08, PI.09
and PC.07 pins
- Use KEY Push Button connected to PG15
- Connect a female/female CAN cable between at least 2 EVAL CAN connectors (CN10)
- Depending on the CAN cell used, you have to configure the jumpers as follows:
@verbatim
+-----------------------------------------------+
| Jumper | CAN1 used | CAN2 used |
+-----------------------------------------------+
| JP3 | 2-3 | 1-2 |
| JP10 | 2-3 | 1-2 |
| JP7 | 1-2 | 1-2 |
| JP9 | fitted | fitted |
+-----------------------------------------------+
@endverbatim
@par How to use it ?
In order to make the program work, you must do the following :
- Copy all source files from this example folder to the template folder under
Project\STM32F2xx_StdPeriph_Template
- Open your preferred toolchain
- Rebuild all files and load your image into target memory
- Run the example
* <h3><center>&copy; COPYRIGHT STMicroelectronics</center></h3>
*/
@@ -1,94 +0,0 @@
/**
******************************************************************************
* @file CAN/Networking/stm32f2xx_conf.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Library configuration file.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_CONF_H
#define __STM32F2xx_CONF_H
/* Includes ------------------------------------------------------------------*/
/* Uncomment the line below to enable peripheral header file inclusion */
#include "stm32f2xx_adc.h"
#include "stm32f2xx_can.h"
#include "stm32f2xx_crc.h"
#include "stm32f2xx_cryp.h"
#include "stm32f2xx_dac.h"
#include "stm32f2xx_dbgmcu.h"
#include "stm32f2xx_dcmi.h"
#include "stm32f2xx_dma.h"
#include "stm32f2xx_exti.h"
#include "stm32f2xx_flash.h"
#include "stm32f2xx_fsmc.h"
#include "stm32f2xx_hash.h"
#include "stm32f2xx_gpio.h"
#include "stm32f2xx_i2c.h"
#include "stm32f2xx_iwdg.h"
#include "stm32f2xx_pwr.h"
#include "stm32f2xx_rcc.h"
#include "stm32f2xx_rng.h"
#include "stm32f2xx_rtc.h"
#include "stm32f2xx_sdio.h"
#include "stm32f2xx_spi.h"
#include "stm32f2xx_syscfg.h"
#include "stm32f2xx_tim.h"
#include "stm32f2xx_usart.h"
#include "stm32f2xx_wwdg.h"
#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* If an external clock source is used, then the value of the following define
should be set to the value of the external clock source, else, if no external
clock is used, keep this define commented */
/*#define I2S_EXTERNAL_CLOCK_VAL 12288000 */ /* Value of the external clock in Hz */
/* Uncomment the line below to expanse the "assert_param" macro in the
Standard Peripheral Library drivers code */
/* #define USE_FULL_ASSERT 1 */
/* Exported macro ------------------------------------------------------------*/
#ifdef USE_FULL_ASSERT
/**
* @brief The assert_param macro is used for function's parameters check.
* @param expr: If expr is false, it calls assert_failed function
* which reports the name of the source file and the source
* line number of the call that failed.
* If expr is true, it returns no value.
* @retval None
*/
#define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__))
/* Exported functions ------------------------------------------------------- */
void assert_failed(uint8_t* file, uint32_t line);
#else
#define assert_param(expr) ((void)0)
#endif /* USE_FULL_ASSERT */
#endif /* __STM32F2xx_CONF_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,213 +0,0 @@
/**
******************************************************************************
* @file CAN/Networking/stm32f2xx_it.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main Interrupt Service Routines.
* This file provides template for all exceptions handler and
* peripherals interrupt service routine.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx_it.h"
#include "main.h"
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup CAN_Networking
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
CanRxMsg RxMessage;
extern uint8_t KeyNumber;
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/******************************************************************************/
/* Cortex-M3 Processor Exceptions Handlers */
/******************************************************************************/
/**
* @brief This function handles NMI exception.
* @param None
* @retval None
*/
void NMI_Handler(void)
{
}
/**
* @brief This function handles Hard Fault exception.
* @param None
* @retval None
*/
void HardFault_Handler(void)
{
/* Go to infinite loop when Hard Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Memory Manage exception.
* @param None
* @retval None
*/
void MemManage_Handler(void)
{
/* Go to infinite loop when Memory Manage exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Bus Fault exception.
* @param None
* @retval None
*/
void BusFault_Handler(void)
{
/* Go to infinite loop when Bus Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Usage Fault exception.
* @param None
* @retval None
*/
void UsageFault_Handler(void)
{
/* Go to infinite loop when Usage Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles SVCall exception.
* @param None
* @retval None
*/
void SVC_Handler(void)
{
}
/**
* @brief This function handles Debug Monitor exception.
* @param None
* @retval None
*/
void DebugMon_Handler(void)
{
}
/**
* @brief This function handles PendSVC exception.
* @param None
* @retval None
*/
void PendSV_Handler(void)
{
}
/**
* @brief This function handles SysTick Handler.
* @param None
* @retval None
*/
void SysTick_Handler(void)
{
}
/******************************************************************************/
/* STM32F2xx Peripherals Interrupt Handlers */
/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */
/* available peripheral interrupt handler's name please refer to the startup */
/* file (startup_stm32f2xx.s). */
/******************************************************************************/
/**
* @brief This function handles PPP interrupt request.
* @param None
* @retval None
*/
/*void PPP_IRQHandler(void)
{
}*/
#ifdef USE_CAN1
/**
* @brief This function handles CAN1 RX0 request.
* @param None
* @retval None
*/
void CAN1_RX0_IRQHandler(void)
{
CAN_Receive(CAN1, CAN_FIFO0, &RxMessage);
if ((RxMessage.StdId == 0x321)&&(RxMessage.IDE == CAN_ID_STD) && (RxMessage.DLC == 1))
{
LED_Display(RxMessage.Data[0]);
KeyNumber = RxMessage.Data[0];
}
}
#endif /* USE_CAN1 */
#ifdef USE_CAN2
/**
* @brief This function handles CAN2 RX0 request.
* @param None
* @retval None
*/
void CAN2_RX0_IRQHandler(void)
{
CAN_Receive(CAN2, CAN_FIFO0, &RxMessage);
if ((RxMessage.StdId == 0x321)&&(RxMessage.IDE == CAN_ID_STD) && (RxMessage.DLC == 1))
{
LED_Display(RxMessage.Data[0]);
KeyNumber = RxMessage.Data[0];
}
}
#endif /* USE_CAN2 */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,62 +0,0 @@
/**
******************************************************************************
* @file CAN/Networking/stm32f2xx_it.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief This file contains the headers of the interrupt handlers.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_IT_H
#define __STM32F2xx_IT_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
void NMI_Handler(void);
void HardFault_Handler(void);
void MemManage_Handler(void);
void BusFault_Handler(void);
void UsageFault_Handler(void);
void SVC_Handler(void);
void DebugMon_Handler(void);
void PendSV_Handler(void);
void SysTick_Handler(void);
void CAN1_RX0_IRQHandler(void);
void CAN2_RX0_IRQHandler(void);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F2xx_IT_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,542 +0,0 @@
/**
******************************************************************************
* @file system_stm32f2xx.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File.
* This file contains the system clock configuration for STM32F2xx devices,
* and is generated by the clock configuration tool
* "STM32f2xx_Clock_Configuration_V1.0.0.xls"
*
* 1. This file provides two functions and one global variable to be called from
* user application:
* - SystemInit(): Setups the system clock (System clock source, PLL Multiplier
* and Divider factors, AHB/APBx prescalers and Flash settings),
* depending on the configuration made in the clock xls tool.
* This function is called at startup just after reset and
* before branch to main program. This call is made inside
* the "startup_stm32f2xx.s" file.
*
* - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
* by the user application to setup the SysTick
* timer or configure other parameters.
*
* - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
* be called whenever the core clock is changed
* during program execution.
*
* 2. After each device reset the HSI (16 MHz) is used as system clock source.
* Then SystemInit() function is called, in "startup_stm32f2xx.s" file, to
* configure the system clock before to branch to main program.
*
* 3. If the system clock source selected by user fails to startup, the SystemInit()
* function will do nothing and HSI still used as system clock source. User can
* add some code to deal with this issue inside the SetSysClock() function.
*
* 4. The default value of HSE crystal is set to 25MHz, refer to "HSE_VALUE" define
* in "stm32f2xx.h" file. When HSE is used as system clock source, directly or
* through PLL, and you are using different crystal you have to adapt the HSE
* value to your own configuration.
*
* 5. This file configures the system clock as follows:
*=============================================================================
*=============================================================================
* Supported STM32F2xx device revision | Rev B and Y
*-----------------------------------------------------------------------------
* System Clock source | PLL (HSE)
*-----------------------------------------------------------------------------
* SYSCLK(Hz) | 120000000
*-----------------------------------------------------------------------------
* HCLK(Hz) | 120000000
*-----------------------------------------------------------------------------
* AHB Prescaler | 1
*-----------------------------------------------------------------------------
* APB1 Prescaler | 4
*-----------------------------------------------------------------------------
* APB2 Prescaler | 2
*-----------------------------------------------------------------------------
* HSE Frequency(Hz) | 25000000
*-----------------------------------------------------------------------------
* PLL_M | 25
*-----------------------------------------------------------------------------
* PLL_N | 240
*-----------------------------------------------------------------------------
* PLL_P | 2
*-----------------------------------------------------------------------------
* PLL_Q | 5
*-----------------------------------------------------------------------------
* PLLI2S_N | NA
*-----------------------------------------------------------------------------
* PLLI2S_R | NA
*-----------------------------------------------------------------------------
* I2S input clock | NA
*-----------------------------------------------------------------------------
* VDD(V) | 3.3
*-----------------------------------------------------------------------------
* Flash Latency(WS) | 3
*-----------------------------------------------------------------------------
* Prefetch Buffer | ON
*-----------------------------------------------------------------------------
* Instruction cache | ON
*-----------------------------------------------------------------------------
* Data cache | ON
*-----------------------------------------------------------------------------
* Require 48MHz for USB OTG FS, | Enabled
* SDIO and RNG clock |
*-----------------------------------------------------------------------------
*=============================================================================
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/** @addtogroup CMSIS
* @{
*/
/** @addtogroup stm32f2xx_system
* @{
*/
/** @addtogroup STM32F2xx_System_Private_Includes
* @{
*/
#include "stm32f2xx.h"
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Defines
* @{
*/
/*!< Uncomment the following line if you need to use external SRAM mounted
on STM322xG_EVAL board as data memory */
/* #define DATA_IN_ExtSRAM */
/*!< Uncomment the following line if you need to relocate your vector Table in
Internal SRAM. */
/* #define VECT_TAB_SRAM */
#define VECT_TAB_OFFSET 0x00 /*!< Vector Table base offset field.
This value must be a multiple of 0x200. */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N */
#define PLL_M 25
#define PLL_N 240
/* SYSCLK = PLL_VCO / PLL_P */
#define PLL_P 2
/* USB OTG FS, SDIO and RNG Clock = PLL_VCO / PLLQ */
#define PLL_Q 5
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Macros
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Variables
* @{
*/
uint32_t SystemCoreClock = 120000000;
__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_FunctionPrototypes
* @{
*/
static void SetSysClock(void);
#ifdef DATA_IN_ExtSRAM
static void SystemInit_ExtMemCtl(void);
#endif /* DATA_IN_ExtSRAM */
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Functions
* @{
*/
/**
* @brief Setup the microcontroller system
* Initialize the Embedded Flash Interface, the PLL and update the
* SystemFrequency variable.
* @param None
* @retval None
*/
void SystemInit(void)
{
/* Reset the RCC clock configuration to the default reset state ------------*/
/* Set HSION bit */
RCC->CR |= (uint32_t)0x00000001;
/* Reset CFGR register */
RCC->CFGR = 0x00000000;
/* Reset HSEON, CSSON and PLLON bits */
RCC->CR &= (uint32_t)0xFEF6FFFF;
/* Reset PLLCFGR register */
RCC->PLLCFGR = 0x24003010;
/* Reset HSEBYP bit */
RCC->CR &= (uint32_t)0xFFFBFFFF;
/* Disable all interrupts */
RCC->CIR = 0x00000000;
#ifdef DATA_IN_ExtSRAM
SystemInit_ExtMemCtl();
#endif /* DATA_IN_ExtSRAM */
/* Configure the System clock source, PLL Multiplier and Divider factors,
AHB/APBx prescalers and Flash settings ----------------------------------*/
SetSysClock();
/* Configure the Vector Table location add offset address ------------------*/
#ifdef VECT_TAB_SRAM
SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */
#else
SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */
#endif
}
/**
* @brief Update SystemCoreClock variable according to Clock Register Values.
* The SystemCoreClock variable contains the core clock (HCLK), it can
* be used by the user application to setup the SysTick timer or configure
* other parameters.
*
* @note Each time the core clock (HCLK) changes, this function must be called
* to update SystemCoreClock variable value. Otherwise, any configuration
* based on this variable will be incorrect.
*
* @note - The system frequency computed by this function is not the real
* frequency in the chip. It is calculated based on the predefined
* constant and the selected clock source:
*
* - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*)
*
* - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**)
*
* - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**)
* or HSI_VALUE(*) multiplied/divided by the PLL factors.
*
* (*) HSI_VALUE is a constant defined in stm32f2xx.h file (default value
* 16 MHz) but the real value may vary depending on the variations
* in voltage and temperature.
*
* (**) HSE_VALUE is a constant defined in stm32f2xx.h file (default value
* 25 MHz), user has to ensure that HSE_VALUE is same as the real
* frequency of the crystal used. Otherwise, this function may
* have wrong result.
*
* - The result of this function could be not correct when using fractional
* value for HSE crystal.
*
* @param None
* @retval None
*/
void SystemCoreClockUpdate(void)
{
uint32_t tmp = 0, pllvco = 0, pllp = 2, pllsource = 0, pllm = 2;
/* Get SYSCLK source -------------------------------------------------------*/
tmp = RCC->CFGR & RCC_CFGR_SWS;
switch (tmp)
{
case 0x00: /* HSI used as system clock source */
SystemCoreClock = HSI_VALUE;
break;
case 0x04: /* HSE used as system clock source */
SystemCoreClock = HSE_VALUE;
break;
case 0x08: /* PLL used as system clock source */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N
SYSCLK = PLL_VCO / PLL_P
*/
pllsource = (RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) >> 22;
pllm = RCC->PLLCFGR & RCC_PLLCFGR_PLLM;
if (pllsource != 0)
{
/* HSE used as PLL clock source */
pllvco = (HSE_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
}
else
{
/* HSI used as PLL clock source */
pllvco = (HSI_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
}
pllp = (((RCC->PLLCFGR & RCC_PLLCFGR_PLLP) >>16) + 1 ) *2;
SystemCoreClock = pllvco/pllp;
break;
default:
SystemCoreClock = HSI_VALUE;
break;
}
/* Compute HCLK frequency --------------------------------------------------*/
/* Get HCLK prescaler */
tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)];
/* HCLK frequency */
SystemCoreClock >>= tmp;
}
/**
* @brief Configures the System clock source, PLL Multiplier and Divider factors,
* AHB/APBx prescalers and Flash settings
* @Note This function should be called only once the RCC clock configuration
* is reset to the default reset state (done in SystemInit() function).
* @param None
* @retval None
*/
static void SetSysClock(void)
{
/******************************************************************************/
/* PLL (clocked by HSE) used as System clock source */
/******************************************************************************/
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
/* Enable HSE */
RCC->CR |= ((uint32_t)RCC_CR_HSEON);
/* Wait till HSE is ready and if Time out is reached exit */
do
{
HSEStatus = RCC->CR & RCC_CR_HSERDY;
StartUpCounter++;
} while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
if ((RCC->CR & RCC_CR_HSERDY) != RESET)
{
HSEStatus = (uint32_t)0x01;
}
else
{
HSEStatus = (uint32_t)0x00;
}
if (HSEStatus == (uint32_t)0x01)
{
/* HCLK = SYSCLK / 1*/
RCC->CFGR |= RCC_CFGR_HPRE_DIV1;
/* PCLK2 = HCLK / 2*/
RCC->CFGR |= RCC_CFGR_PPRE2_DIV2;
/* PCLK1 = HCLK / 4*/
RCC->CFGR |= RCC_CFGR_PPRE1_DIV4;
/* Configure the main PLL */
RCC->PLLCFGR = PLL_M | (PLL_N << 6) | (((PLL_P >> 1) -1) << 16) |
(RCC_PLLCFGR_PLLSRC_HSE) | (PLL_Q << 24);
/* Enable the main PLL */
RCC->CR |= RCC_CR_PLLON;
/* Wait till the main PLL is ready */
while((RCC->CR & RCC_CR_PLLRDY) == 0)
{
}
/* Configure Flash prefetch, Instruction cache, Data cache and wait state */
FLASH->ACR = FLASH_ACR_PRFTEN | FLASH_ACR_ICEN | FLASH_ACR_DCEN | FLASH_ACR_LATENCY_3WS;
/* Select the main PLL as system clock source */
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW));
RCC->CFGR |= RCC_CFGR_SW_PLL;
/* Wait till the main PLL is used as system clock source */
while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS ) != RCC_CFGR_SWS_PLL);
{
}
}
else
{ /* If HSE fails to start-up, the application will have wrong clock
configuration. User can add here some code to deal with this error */
}
}
/**
* @brief Setup the external memory controller. Called in startup_stm32f2xx.s
* before jump to __main
* @param None
* @retval None
*/
#ifdef DATA_IN_ExtSRAM
/**
* @brief Setup the external memory controller.
* Called in startup_stm32f2xx.s before jump to main.
* This function configures the external SRAM mounted on STM322xG_EVAL board
* This SRAM will be used as program data memory (including heap and stack).
* @param None
* @retval None
*/
void SystemInit_ExtMemCtl(void)
{
/*-- GPIOs Configuration -----------------------------------------------------*/
/*
+-------------------+--------------------+------------------+------------------+
+ SRAM pins assignment +
+-------------------+--------------------+------------------+------------------+
| PD0 <-> FSMC_D2 | PE0 <-> FSMC_NBL0 | PF0 <-> FSMC_A0 | PG0 <-> FSMC_A10 |
| PD1 <-> FSMC_D3 | PE1 <-> FSMC_NBL1 | PF1 <-> FSMC_A1 | PG1 <-> FSMC_A11 |
| PD4 <-> FSMC_NOE | PE7 <-> FSMC_D4 | PF2 <-> FSMC_A2 | PG2 <-> FSMC_A12 |
| PD5 <-> FSMC_NWE | PE8 <-> FSMC_D5 | PF3 <-> FSMC_A3 | PG3 <-> FSMC_A13 |
| PD8 <-> FSMC_D13 | PE9 <-> FSMC_D6 | PF4 <-> FSMC_A4 | PG4 <-> FSMC_A14 |
| PD9 <-> FSMC_D14 | PE10 <-> FSMC_D7 | PF5 <-> FSMC_A5 | PG5 <-> FSMC_A15 |
| PD10 <-> FSMC_D15 | PE11 <-> FSMC_D8 | PF12 <-> FSMC_A6 | PG9 <-> FSMC_NE2 |
| PD11 <-> FSMC_A16 | PE12 <-> FSMC_D9 | PF13 <-> FSMC_A7 |------------------+
| PD12 <-> FSMC_A17 | PE13 <-> FSMC_D10 | PF14 <-> FSMC_A8 |
| PD14 <-> FSMC_D0 | PE14 <-> FSMC_D11 | PF15 <-> FSMC_A9 |
| PD15 <-> FSMC_D1 | PE15 <-> FSMC_D12 |------------------+
+-------------------+--------------------+
*/
/* Enable GPIOD, GPIOE, GPIOF and GPIOG interface clock */
RCC->AHB1ENR = 0x00000078;
/* Connect PDx pins to FSMC Alternate function */
GPIOD->AFR[0] = 0x00cc00cc;
GPIOD->AFR[1] = 0xcc0ccccc;
/* Configure PDx pins in Alternate function mode */
GPIOD->MODER = 0xa2aa0a0a;
/* Configure PDx pins speed to 100 MHz */
GPIOD->OSPEEDR = 0xf3ff0f0f;
/* Configure PDx pins Output type to push-pull */
GPIOD->OTYPER = 0x00000000;
/* No pull-up, pull-down for PDx pins */
GPIOD->PUPDR = 0x00000000;
/* Connect PEx pins to FSMC Alternate function */
GPIOE->AFR[0] = 0xc00000cc;
GPIOE->AFR[1] = 0xcccccccc;
/* Configure PEx pins in Alternate function mode */
GPIOE->MODER = 0xaaaa800a;
/* Configure PEx pins speed to 100 MHz */
GPIOE->OSPEEDR = 0xffffc00f;
/* Configure PEx pins Output type to push-pull */
GPIOE->OTYPER = 0x00000000;
/* No pull-up, pull-down for PEx pins */
GPIOE->PUPDR = 0x00000000;
/* Connect PFx pins to FSMC Alternate function */
GPIOF->AFR[0] = 0x00cccccc;
GPIOF->AFR[1] = 0xcccc0000;
/* Configure PFx pins in Alternate function mode */
GPIOF->MODER = 0xaa000aaa;
/* Configure PFx pins speed to 100 MHz */
GPIOF->OSPEEDR = 0xff000fff;
/* Configure PFx pins Output type to push-pull */
GPIOF->OTYPER = 0x00000000;
/* No pull-up, pull-down for PFx pins */
GPIOF->PUPDR = 0x00000000;
/* Connect PGx pins to FSMC Alternate function */
GPIOG->AFR[0] = 0x00cccccc;
GPIOG->AFR[1] = 0x000000c0;
/* Configure PGx pins in Alternate function mode */
GPIOG->MODER = 0x00080aaa;
/* Configure PGx pins speed to 100 MHz */
GPIOG->OSPEEDR = 0x000c0fff;
/* Configure PGx pins Output type to push-pull */
GPIOG->OTYPER = 0x00000000;
/* No pull-up, pull-down for PGx pins */
GPIOG->PUPDR = 0x00000000;
/*-- FSMC Configuration ------------------------------------------------------*/
/* Enable the FSMC interface clock */
RCC->AHB3ENR = 0x00000001;
/* Configure and enable Bank1_SRAM2 */
FSMC_Bank1->BTCR[2] = 0x00001015;
FSMC_Bank1->BTCR[3] = 0x00010400;
FSMC_Bank1E->BWTR[2] = 0x0fffffff;
/*
Bank1_SRAM2 is configured as follow:
p.FSMC_AddressSetupTime = 0;
p.FSMC_AddressHoldTime = 0;
p.FSMC_DataSetupTime = 4;
p.FSMC_BusTurnAroundDuration = 1;
p.FSMC_CLKDivision = 0;
p.FSMC_DataLatency = 0;
p.FSMC_AccessMode = FSMC_AccessMode_A;
FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM2;
FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;
FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_PSRAM;
FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b;
FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_AsynchronousWait = FSMC_AsynchronousWait_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState;
FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;
FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;
FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p;
FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;
*/
}
#endif /* DATA_IN_ExtSRAM */
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,127 +0,0 @@
/**
******************************************************************************
* @file CRC/CRC_Example/main.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main program body
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup CRC_Example
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define BUFFER_SIZE 114
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
static const uint32_t DataBuffer[BUFFER_SIZE] =
{
0x00001021, 0x20423063, 0x408450a5, 0x60c670e7, 0x9129a14a, 0xb16bc18c,
0xd1ade1ce, 0xf1ef1231, 0x32732252, 0x52b54294, 0x72f762d6, 0x93398318,
0xa35ad3bd, 0xc39cf3ff, 0xe3de2462, 0x34430420, 0x64e674c7, 0x44a45485,
0xa56ab54b, 0x85289509, 0xf5cfc5ac, 0xd58d3653, 0x26721611, 0x063076d7,
0x569546b4, 0xb75ba77a, 0x97198738, 0xf7dfe7fe, 0xc7bc48c4, 0x58e56886,
0x78a70840, 0x18612802, 0xc9ccd9ed, 0xe98ef9af, 0x89489969, 0xa90ab92b,
0x4ad47ab7, 0x6a961a71, 0x0a503a33, 0x2a12dbfd, 0xfbbfeb9e, 0x9b798b58,
0xbb3bab1a, 0x6ca67c87, 0x5cc52c22, 0x3c030c60, 0x1c41edae, 0xfd8fcdec,
0xad2abd0b, 0x8d689d49, 0x7e976eb6, 0x5ed54ef4, 0x2e321e51, 0x0e70ff9f,
0xefbedfdd, 0xcffcbf1b, 0x9f598f78, 0x918881a9, 0xb1caa1eb, 0xd10cc12d,
0xe16f1080, 0x00a130c2, 0x20e35004, 0x40257046, 0x83b99398, 0xa3fbb3da,
0xc33dd31c, 0xe37ff35e, 0x129022f3, 0x32d24235, 0x52146277, 0x7256b5ea,
0x95a88589, 0xf56ee54f, 0xd52cc50d, 0x34e224c3, 0x04817466, 0x64475424,
0x4405a7db, 0xb7fa8799, 0xe75ff77e, 0xc71dd73c, 0x26d336f2, 0x069116b0,
0x76764615, 0x5634d94c, 0xc96df90e, 0xe92f99c8, 0xb98aa9ab, 0x58444865,
0x78066827, 0x18c008e1, 0x28a3cb7d, 0xdb5ceb3f, 0xfb1e8bf9, 0x9bd8abbb,
0x4a755a54, 0x6a377a16, 0x0af11ad0, 0x2ab33a92, 0xed0fdd6c, 0xcd4dbdaa,
0xad8b9de8, 0x8dc97c26, 0x5c644c45, 0x3ca22c83, 0x1ce00cc1, 0xef1fff3e,
0xdf7caf9b, 0xbfba8fd9, 0x9ff86e17, 0x7e364e55, 0x2e933eb2, 0x0ed11ef0
};
__IO uint32_t CRCValue = 0;
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f2xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f2xx.c file
*/
/* Enable CRC clock */
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_CRC, ENABLE);
/* Compute the CRC of "DataBuffer" */
CRCValue = CRC_CalcBlockCRC((uint32_t *)DataBuffer, BUFFER_SIZE);
while (1)
{
}
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,71 +0,0 @@
/**
@page CRC_Example CRC Calculation Example
@verbatim
******************** (C) COPYRIGHT 2012 STMicroelectronics *******************
* @file CRC/CRC_Example/readme.txt
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Description of the CRC example.
******************************************************************************
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
@endverbatim
@par Example Description
This example shows how to use CRC (cyclic redundancy check) calculation unit to
get a CRC code of a given buffer of data word(32-bit), based on a fixed generator
polynomial(0x4C11DB7).
@par Directory contents
- CRC/CRC_Example/stm32f2xx_conf.h Library Configuration file
- CRC/CRC_Example/stm32f2xx_it.c Interrupt handlers
- CRC/CRC_Example/stm32f2xx_it.h Interrupt handlers header file
- CRC/CRC_Example/main.c Main program
- CRC/CRC_Example/system_stm32f2xx.c STM32F2xx system source file
@note The "system_stm32f2xx.c" is generated by an automatic clock configuration
tool and can be easily customized to your own configuration.
To select different clock setup, use the "STM32F2xx_Clock_Configuration_V1.0.0.xls"
provided with the AN3362 package available on <a href="http://www.st.com/internet/mcu/family/141.jsp"> ST Microcontrollers </a>
@par Hardware and Software environment
- This example runs on STM32F2xx Devices.
- This example has been tested with STM322xG-EVAL RevB and can be easily tailored
to any other development board
@par How to use it ?
In order to make the program work, you must do the following :
- Copy all source files from this example folder to the template folder under
Project\STM32F2xx_StdPeriph_Template
- Open your preferred toolchain
- Rebuild all files and load your image into target memory
- Run the example
* <h3><center>&copy; COPYRIGHT STMicroelectronics</center></h3>
*/
@@ -1,94 +0,0 @@
/**
******************************************************************************
* @file CRC/CRC_Example/stm32f2xx_conf.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Library configuration file.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_CONF_H
#define __STM32F2xx_CONF_H
/* Includes ------------------------------------------------------------------*/
/* Uncomment the line below to enable peripheral header file inclusion */
#include "stm32f2xx_adc.h"
#include "stm32f2xx_can.h"
#include "stm32f2xx_crc.h"
#include "stm32f2xx_cryp.h"
#include "stm32f2xx_dac.h"
#include "stm32f2xx_dbgmcu.h"
#include "stm32f2xx_dcmi.h"
#include "stm32f2xx_dma.h"
#include "stm32f2xx_exti.h"
#include "stm32f2xx_flash.h"
#include "stm32f2xx_fsmc.h"
#include "stm32f2xx_hash.h"
#include "stm32f2xx_gpio.h"
#include "stm32f2xx_i2c.h"
#include "stm32f2xx_iwdg.h"
#include "stm32f2xx_pwr.h"
#include "stm32f2xx_rcc.h"
#include "stm32f2xx_rng.h"
#include "stm32f2xx_rtc.h"
#include "stm32f2xx_sdio.h"
#include "stm32f2xx_spi.h"
#include "stm32f2xx_syscfg.h"
#include "stm32f2xx_tim.h"
#include "stm32f2xx_usart.h"
#include "stm32f2xx_wwdg.h"
#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* If an external clock source is used, then the value of the following define
should be set to the value of the external clock source, else, if no external
clock is used, keep this define commented */
/*#define I2S_EXTERNAL_CLOCK_VAL 12288000 */ /* Value of the external clock in Hz */
/* Uncomment the line below to expanse the "assert_param" macro in the
Standard Peripheral Library drivers code */
/* #define USE_FULL_ASSERT 1 */
/* Exported macro ------------------------------------------------------------*/
#ifdef USE_FULL_ASSERT
/**
* @brief The assert_param macro is used for function's parameters check.
* @param expr: If expr is false, it calls assert_failed function
* which reports the name of the source file and the source
* line number of the call that failed.
* If expr is true, it returns no value.
* @retval None
*/
#define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__))
/* Exported functions ------------------------------------------------------- */
void assert_failed(uint8_t* file, uint32_t line);
#else
#define assert_param(expr) ((void)0)
#endif /* USE_FULL_ASSERT */
#endif /* __STM32F2xx_CONF_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,173 +0,0 @@
/**
******************************************************************************
* @file CRC/CRC_Example/stm32f2xx_it.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main Interrupt Service Routines.
* This file provides template for all exceptions handler and
* peripherals interrupt service routine.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx_it.h"
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup CRC_Example
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/******************************************************************************/
/* Cortex-M3 Processor Exceptions Handlers */
/******************************************************************************/
/**
* @brief This function handles NMI exception.
* @param None
* @retval None
*/
void NMI_Handler(void)
{
}
/**
* @brief This function handles Hard Fault exception.
* @param None
* @retval None
*/
void HardFault_Handler(void)
{
/* Go to infinite loop when Hard Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Memory Manage exception.
* @param None
* @retval None
*/
void MemManage_Handler(void)
{
/* Go to infinite loop when Memory Manage exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Bus Fault exception.
* @param None
* @retval None
*/
void BusFault_Handler(void)
{
/* Go to infinite loop when Bus Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Usage Fault exception.
* @param None
* @retval None
*/
void UsageFault_Handler(void)
{
/* Go to infinite loop when Usage Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles SVCall exception.
* @param None
* @retval None
*/
void SVC_Handler(void)
{
}
/**
* @brief This function handles Debug Monitor exception.
* @param None
* @retval None
*/
void DebugMon_Handler(void)
{
}
/**
* @brief This function handles PendSVC exception.
* @param None
* @retval None
*/
void PendSV_Handler(void)
{
}
/**
* @brief This function handles SysTick Handler.
* @param None
* @retval None
*/
void SysTick_Handler(void)
{
}
/******************************************************************************/
/* STM32F2xx Peripherals Interrupt Handlers */
/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */
/* available peripheral interrupt handler's name please refer to the startup */
/* file (startup_stm32f2xx.s). */
/******************************************************************************/
/**
* @brief This function handles PPP interrupt request.
* @param None
* @retval None
*/
/*void PPP_IRQHandler(void)
{
}*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,60 +0,0 @@
/**
******************************************************************************
* @file CRC/CRC_Example/stm32f2xx_it.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief This file contains the headers of the interrupt handlers.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_IT_H
#define __STM32F2xx_IT_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
void NMI_Handler(void);
void HardFault_Handler(void);
void MemManage_Handler(void);
void BusFault_Handler(void);
void UsageFault_Handler(void);
void SVC_Handler(void);
void DebugMon_Handler(void);
void PendSV_Handler(void);
void SysTick_Handler(void);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F2xx_IT_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,542 +0,0 @@
/**
******************************************************************************
* @file system_stm32f2xx.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File.
* This file contains the system clock configuration for STM32F2xx devices,
* and is generated by the clock configuration tool
* "STM32f2xx_Clock_Configuration_V1.0.0.xls"
*
* 1. This file provides two functions and one global variable to be called from
* user application:
* - SystemInit(): Setups the system clock (System clock source, PLL Multiplier
* and Divider factors, AHB/APBx prescalers and Flash settings),
* depending on the configuration made in the clock xls tool.
* This function is called at startup just after reset and
* before branch to main program. This call is made inside
* the "startup_stm32f2xx.s" file.
*
* - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
* by the user application to setup the SysTick
* timer or configure other parameters.
*
* - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
* be called whenever the core clock is changed
* during program execution.
*
* 2. After each device reset the HSI (16 MHz) is used as system clock source.
* Then SystemInit() function is called, in "startup_stm32f2xx.s" file, to
* configure the system clock before to branch to main program.
*
* 3. If the system clock source selected by user fails to startup, the SystemInit()
* function will do nothing and HSI still used as system clock source. User can
* add some code to deal with this issue inside the SetSysClock() function.
*
* 4. The default value of HSE crystal is set to 25MHz, refer to "HSE_VALUE" define
* in "stm32f2xx.h" file. When HSE is used as system clock source, directly or
* through PLL, and you are using different crystal you have to adapt the HSE
* value to your own configuration.
*
* 5. This file configures the system clock as follows:
*=============================================================================
*=============================================================================
* Supported STM32F2xx device revision | Rev B and Y
*-----------------------------------------------------------------------------
* System Clock source | PLL (HSE)
*-----------------------------------------------------------------------------
* SYSCLK(Hz) | 120000000
*-----------------------------------------------------------------------------
* HCLK(Hz) | 120000000
*-----------------------------------------------------------------------------
* AHB Prescaler | 1
*-----------------------------------------------------------------------------
* APB1 Prescaler | 4
*-----------------------------------------------------------------------------
* APB2 Prescaler | 2
*-----------------------------------------------------------------------------
* HSE Frequency(Hz) | 25000000
*-----------------------------------------------------------------------------
* PLL_M | 25
*-----------------------------------------------------------------------------
* PLL_N | 240
*-----------------------------------------------------------------------------
* PLL_P | 2
*-----------------------------------------------------------------------------
* PLL_Q | 5
*-----------------------------------------------------------------------------
* PLLI2S_N | NA
*-----------------------------------------------------------------------------
* PLLI2S_R | NA
*-----------------------------------------------------------------------------
* I2S input clock | NA
*-----------------------------------------------------------------------------
* VDD(V) | 3.3
*-----------------------------------------------------------------------------
* Flash Latency(WS) | 3
*-----------------------------------------------------------------------------
* Prefetch Buffer | ON
*-----------------------------------------------------------------------------
* Instruction cache | ON
*-----------------------------------------------------------------------------
* Data cache | ON
*-----------------------------------------------------------------------------
* Require 48MHz for USB OTG FS, | Enabled
* SDIO and RNG clock |
*-----------------------------------------------------------------------------
*=============================================================================
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/** @addtogroup CMSIS
* @{
*/
/** @addtogroup stm32f2xx_system
* @{
*/
/** @addtogroup STM32F2xx_System_Private_Includes
* @{
*/
#include "stm32f2xx.h"
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Defines
* @{
*/
/*!< Uncomment the following line if you need to use external SRAM mounted
on STM322xG_EVAL board as data memory */
/* #define DATA_IN_ExtSRAM */
/*!< Uncomment the following line if you need to relocate your vector Table in
Internal SRAM. */
/* #define VECT_TAB_SRAM */
#define VECT_TAB_OFFSET 0x00 /*!< Vector Table base offset field.
This value must be a multiple of 0x200. */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N */
#define PLL_M 25
#define PLL_N 240
/* SYSCLK = PLL_VCO / PLL_P */
#define PLL_P 2
/* USB OTG FS, SDIO and RNG Clock = PLL_VCO / PLLQ */
#define PLL_Q 5
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Macros
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Variables
* @{
*/
uint32_t SystemCoreClock = 120000000;
__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_FunctionPrototypes
* @{
*/
static void SetSysClock(void);
#ifdef DATA_IN_ExtSRAM
static void SystemInit_ExtMemCtl(void);
#endif /* DATA_IN_ExtSRAM */
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Functions
* @{
*/
/**
* @brief Setup the microcontroller system
* Initialize the Embedded Flash Interface, the PLL and update the
* SystemFrequency variable.
* @param None
* @retval None
*/
void SystemInit(void)
{
/* Reset the RCC clock configuration to the default reset state ------------*/
/* Set HSION bit */
RCC->CR |= (uint32_t)0x00000001;
/* Reset CFGR register */
RCC->CFGR = 0x00000000;
/* Reset HSEON, CSSON and PLLON bits */
RCC->CR &= (uint32_t)0xFEF6FFFF;
/* Reset PLLCFGR register */
RCC->PLLCFGR = 0x24003010;
/* Reset HSEBYP bit */
RCC->CR &= (uint32_t)0xFFFBFFFF;
/* Disable all interrupts */
RCC->CIR = 0x00000000;
#ifdef DATA_IN_ExtSRAM
SystemInit_ExtMemCtl();
#endif /* DATA_IN_ExtSRAM */
/* Configure the System clock source, PLL Multiplier and Divider factors,
AHB/APBx prescalers and Flash settings ----------------------------------*/
SetSysClock();
/* Configure the Vector Table location add offset address ------------------*/
#ifdef VECT_TAB_SRAM
SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */
#else
SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */
#endif
}
/**
* @brief Update SystemCoreClock variable according to Clock Register Values.
* The SystemCoreClock variable contains the core clock (HCLK), it can
* be used by the user application to setup the SysTick timer or configure
* other parameters.
*
* @note Each time the core clock (HCLK) changes, this function must be called
* to update SystemCoreClock variable value. Otherwise, any configuration
* based on this variable will be incorrect.
*
* @note - The system frequency computed by this function is not the real
* frequency in the chip. It is calculated based on the predefined
* constant and the selected clock source:
*
* - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*)
*
* - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**)
*
* - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**)
* or HSI_VALUE(*) multiplied/divided by the PLL factors.
*
* (*) HSI_VALUE is a constant defined in stm32f2xx.h file (default value
* 16 MHz) but the real value may vary depending on the variations
* in voltage and temperature.
*
* (**) HSE_VALUE is a constant defined in stm32f2xx.h file (default value
* 25 MHz), user has to ensure that HSE_VALUE is same as the real
* frequency of the crystal used. Otherwise, this function may
* have wrong result.
*
* - The result of this function could be not correct when using fractional
* value for HSE crystal.
*
* @param None
* @retval None
*/
void SystemCoreClockUpdate(void)
{
uint32_t tmp = 0, pllvco = 0, pllp = 2, pllsource = 0, pllm = 2;
/* Get SYSCLK source -------------------------------------------------------*/
tmp = RCC->CFGR & RCC_CFGR_SWS;
switch (tmp)
{
case 0x00: /* HSI used as system clock source */
SystemCoreClock = HSI_VALUE;
break;
case 0x04: /* HSE used as system clock source */
SystemCoreClock = HSE_VALUE;
break;
case 0x08: /* PLL used as system clock source */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N
SYSCLK = PLL_VCO / PLL_P
*/
pllsource = (RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) >> 22;
pllm = RCC->PLLCFGR & RCC_PLLCFGR_PLLM;
if (pllsource != 0)
{
/* HSE used as PLL clock source */
pllvco = (HSE_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
}
else
{
/* HSI used as PLL clock source */
pllvco = (HSI_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
}
pllp = (((RCC->PLLCFGR & RCC_PLLCFGR_PLLP) >>16) + 1 ) *2;
SystemCoreClock = pllvco/pllp;
break;
default:
SystemCoreClock = HSI_VALUE;
break;
}
/* Compute HCLK frequency --------------------------------------------------*/
/* Get HCLK prescaler */
tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)];
/* HCLK frequency */
SystemCoreClock >>= tmp;
}
/**
* @brief Configures the System clock source, PLL Multiplier and Divider factors,
* AHB/APBx prescalers and Flash settings
* @Note This function should be called only once the RCC clock configuration
* is reset to the default reset state (done in SystemInit() function).
* @param None
* @retval None
*/
static void SetSysClock(void)
{
/******************************************************************************/
/* PLL (clocked by HSE) used as System clock source */
/******************************************************************************/
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
/* Enable HSE */
RCC->CR |= ((uint32_t)RCC_CR_HSEON);
/* Wait till HSE is ready and if Time out is reached exit */
do
{
HSEStatus = RCC->CR & RCC_CR_HSERDY;
StartUpCounter++;
} while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
if ((RCC->CR & RCC_CR_HSERDY) != RESET)
{
HSEStatus = (uint32_t)0x01;
}
else
{
HSEStatus = (uint32_t)0x00;
}
if (HSEStatus == (uint32_t)0x01)
{
/* HCLK = SYSCLK / 1*/
RCC->CFGR |= RCC_CFGR_HPRE_DIV1;
/* PCLK2 = HCLK / 2*/
RCC->CFGR |= RCC_CFGR_PPRE2_DIV2;
/* PCLK1 = HCLK / 4*/
RCC->CFGR |= RCC_CFGR_PPRE1_DIV4;
/* Configure the main PLL */
RCC->PLLCFGR = PLL_M | (PLL_N << 6) | (((PLL_P >> 1) -1) << 16) |
(RCC_PLLCFGR_PLLSRC_HSE) | (PLL_Q << 24);
/* Enable the main PLL */
RCC->CR |= RCC_CR_PLLON;
/* Wait till the main PLL is ready */
while((RCC->CR & RCC_CR_PLLRDY) == 0)
{
}
/* Configure Flash prefetch, Instruction cache, Data cache and wait state */
FLASH->ACR = FLASH_ACR_PRFTEN | FLASH_ACR_ICEN | FLASH_ACR_DCEN | FLASH_ACR_LATENCY_3WS;
/* Select the main PLL as system clock source */
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW));
RCC->CFGR |= RCC_CFGR_SW_PLL;
/* Wait till the main PLL is used as system clock source */
while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS ) != RCC_CFGR_SWS_PLL);
{
}
}
else
{ /* If HSE fails to start-up, the application will have wrong clock
configuration. User can add here some code to deal with this error */
}
}
/**
* @brief Setup the external memory controller. Called in startup_stm32f2xx.s
* before jump to __main
* @param None
* @retval None
*/
#ifdef DATA_IN_ExtSRAM
/**
* @brief Setup the external memory controller.
* Called in startup_stm32f2xx.s before jump to main.
* This function configures the external SRAM mounted on STM322xG_EVAL board
* This SRAM will be used as program data memory (including heap and stack).
* @param None
* @retval None
*/
void SystemInit_ExtMemCtl(void)
{
/*-- GPIOs Configuration -----------------------------------------------------*/
/*
+-------------------+--------------------+------------------+------------------+
+ SRAM pins assignment +
+-------------------+--------------------+------------------+------------------+
| PD0 <-> FSMC_D2 | PE0 <-> FSMC_NBL0 | PF0 <-> FSMC_A0 | PG0 <-> FSMC_A10 |
| PD1 <-> FSMC_D3 | PE1 <-> FSMC_NBL1 | PF1 <-> FSMC_A1 | PG1 <-> FSMC_A11 |
| PD4 <-> FSMC_NOE | PE7 <-> FSMC_D4 | PF2 <-> FSMC_A2 | PG2 <-> FSMC_A12 |
| PD5 <-> FSMC_NWE | PE8 <-> FSMC_D5 | PF3 <-> FSMC_A3 | PG3 <-> FSMC_A13 |
| PD8 <-> FSMC_D13 | PE9 <-> FSMC_D6 | PF4 <-> FSMC_A4 | PG4 <-> FSMC_A14 |
| PD9 <-> FSMC_D14 | PE10 <-> FSMC_D7 | PF5 <-> FSMC_A5 | PG5 <-> FSMC_A15 |
| PD10 <-> FSMC_D15 | PE11 <-> FSMC_D8 | PF12 <-> FSMC_A6 | PG9 <-> FSMC_NE2 |
| PD11 <-> FSMC_A16 | PE12 <-> FSMC_D9 | PF13 <-> FSMC_A7 |------------------+
| PD12 <-> FSMC_A17 | PE13 <-> FSMC_D10 | PF14 <-> FSMC_A8 |
| PD14 <-> FSMC_D0 | PE14 <-> FSMC_D11 | PF15 <-> FSMC_A9 |
| PD15 <-> FSMC_D1 | PE15 <-> FSMC_D12 |------------------+
+-------------------+--------------------+
*/
/* Enable GPIOD, GPIOE, GPIOF and GPIOG interface clock */
RCC->AHB1ENR = 0x00000078;
/* Connect PDx pins to FSMC Alternate function */
GPIOD->AFR[0] = 0x00cc00cc;
GPIOD->AFR[1] = 0xcc0ccccc;
/* Configure PDx pins in Alternate function mode */
GPIOD->MODER = 0xa2aa0a0a;
/* Configure PDx pins speed to 100 MHz */
GPIOD->OSPEEDR = 0xf3ff0f0f;
/* Configure PDx pins Output type to push-pull */
GPIOD->OTYPER = 0x00000000;
/* No pull-up, pull-down for PDx pins */
GPIOD->PUPDR = 0x00000000;
/* Connect PEx pins to FSMC Alternate function */
GPIOE->AFR[0] = 0xc00000cc;
GPIOE->AFR[1] = 0xcccccccc;
/* Configure PEx pins in Alternate function mode */
GPIOE->MODER = 0xaaaa800a;
/* Configure PEx pins speed to 100 MHz */
GPIOE->OSPEEDR = 0xffffc00f;
/* Configure PEx pins Output type to push-pull */
GPIOE->OTYPER = 0x00000000;
/* No pull-up, pull-down for PEx pins */
GPIOE->PUPDR = 0x00000000;
/* Connect PFx pins to FSMC Alternate function */
GPIOF->AFR[0] = 0x00cccccc;
GPIOF->AFR[1] = 0xcccc0000;
/* Configure PFx pins in Alternate function mode */
GPIOF->MODER = 0xaa000aaa;
/* Configure PFx pins speed to 100 MHz */
GPIOF->OSPEEDR = 0xff000fff;
/* Configure PFx pins Output type to push-pull */
GPIOF->OTYPER = 0x00000000;
/* No pull-up, pull-down for PFx pins */
GPIOF->PUPDR = 0x00000000;
/* Connect PGx pins to FSMC Alternate function */
GPIOG->AFR[0] = 0x00cccccc;
GPIOG->AFR[1] = 0x000000c0;
/* Configure PGx pins in Alternate function mode */
GPIOG->MODER = 0x00080aaa;
/* Configure PGx pins speed to 100 MHz */
GPIOG->OSPEEDR = 0x000c0fff;
/* Configure PGx pins Output type to push-pull */
GPIOG->OTYPER = 0x00000000;
/* No pull-up, pull-down for PGx pins */
GPIOG->PUPDR = 0x00000000;
/*-- FSMC Configuration ------------------------------------------------------*/
/* Enable the FSMC interface clock */
RCC->AHB3ENR = 0x00000001;
/* Configure and enable Bank1_SRAM2 */
FSMC_Bank1->BTCR[2] = 0x00001015;
FSMC_Bank1->BTCR[3] = 0x00010400;
FSMC_Bank1E->BWTR[2] = 0x0fffffff;
/*
Bank1_SRAM2 is configured as follow:
p.FSMC_AddressSetupTime = 0;
p.FSMC_AddressHoldTime = 0;
p.FSMC_DataSetupTime = 4;
p.FSMC_BusTurnAroundDuration = 1;
p.FSMC_CLKDivision = 0;
p.FSMC_DataLatency = 0;
p.FSMC_AccessMode = FSMC_AccessMode_A;
FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM2;
FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;
FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_PSRAM;
FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b;
FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_AsynchronousWait = FSMC_AsynchronousWait_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState;
FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;
FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;
FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p;
FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;
*/
}
#endif /* DATA_IN_ExtSRAM */
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,25 +0,0 @@
======================================
=== CRYP AES-128 Using DMA Example ===
======================================
---------------------------------------
Plain Data :
---------------------------------------
[0x20212223][0x24252627][0x28292A2B][0x2C2D2E2F] Block 0
[0xFFEEDDCC][0xBBAA9988][0x77665544][0x33221100] Block 1
---------------------------------------
Key :
---------------------------------------
[0x40414243][0x44454647][0x48494A4B][0x4C4D4E4F]
---------------------------------------
AES-128 Encrypted Data:
---------------------------------------
[0x8CAA7F58][0x9AA0CEB6][0x350A45E7][0x A6E435B] Block 0
[0xFE9BD6DE][0x4F5597F8][0x11FDF0A8][0x D55FAFE] Block 1
---------------------------------------
AES-128 Decrypted Data:
---------------------------------------
[0x20212223][0x24252627][0x28292A2B][0x2C2D2E2F] Block 0
[0xFFEEDDCC][0xBBAA9988][0x77665544][0x33221100] Block 1
@@ -1,499 +0,0 @@
/**
******************************************************************************
* @file CRYP/AES_ECBmode_DMA/main.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main program body
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
#include "stm322xg_eval.h"
#include "stdio.h"
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup AES_ECBmode_DMA
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define BLOCKS_NBR 2 /* User can change this value to enlarge or reduce
the number of blocks to encrypt */
#define DATA_SIZE ((BLOCKS_NBR *128)/32)
#define CRYP_DIN_REG_ADDR ((uint32_t)0x50060008) /* Crypto DIN register address */
#define CRYP_DOUT_REG_ADDR ((uint32_t)0x5006000C) /* Crypto DOUT register address */
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
__IO uint32_t AES128key[4]={0x40414243,0x44454647,0x48494a4b,0x4c4d4e4f};
__IO uint32_t PlainData[DATA_SIZE]={
0x20212223,0x24252627,0x28292a2b,0x2c2d2e2f, /* Block 0 */
0xFFEEDDCC,0xBBAA9988,0x77665544,0x33221100}; /* Block 1 */
__IO uint32_t EncryptedData[DATA_SIZE];
__IO uint32_t DecryptedData[DATA_SIZE];
/* Private function prototypes -----------------------------------------------*/
void AES128_Encrypt_DMA(void);
void AES128_Decrypt_DMA(void);
void Display_PlainData(void);
void Display_EncryptedData(void);
void Display_DecryptedData(void);
void USART_Config(void);
#ifdef __GNUC__
/* With GCC/RAISONANCE, small printf (option LD Linker->Libraries->Small printf
set to 'Yes') calls __io_putchar() */
#define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
#else
#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
#endif /* __GNUC__ */
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f2xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f2xx.c file
*/
/* USART Configuration */
USART_Config();
/* Display Plain Data*/
Display_PlainData();
/*=====================================================
Encryption
======================================================*/
/* Encryption */
AES128_Encrypt_DMA();
/* Display encrypted Data */
Display_EncryptedData();
/*=====================================================
Decryption
======================================================*/
/* Decryption */
AES128_Decrypt_DMA();
/* Display decrypted data */
Display_DecryptedData();
while(1);
}
/**
* @brief Encrypt Data using AES
* @note DATA transfer is done by the DMA
* @note DMA2 stream6 channel2 is used to transfer data from memory (the
* PlainData Table) to CRYP Peripheral (the INPUT data register).
* @note DMA2 stream5 channel2 is used to transfer data from CRYP Peripheral
* (the OUTPUT data register to memory (the EncryptedData Table).
* @param None
* @retval None
*/
void AES128_Encrypt_DMA(void)
{
CRYP_InitTypeDef CRYP_InitStructure;
CRYP_KeyInitTypeDef CRYP_KeyInitStructure;
DMA_InitTypeDef DMA_InitStructure;
/* Enable CRYP clock */
RCC_AHB2PeriphClockCmd(RCC_AHB2Periph_CRYP, ENABLE);
/* Enable DMA2 clock */
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2, ENABLE);
/* CRYP configuration********************************************************/
/* Crypto key structure initialisation */
CRYP_KeyStructInit(&CRYP_KeyInitStructure);
/* Crypto Init for Encryption process */
CRYP_InitStructure.CRYP_AlgoDir = CRYP_AlgoDir_Encrypt;
CRYP_InitStructure.CRYP_AlgoMode = CRYP_AlgoMode_AES_ECB;
CRYP_InitStructure.CRYP_DataType = CRYP_DataType_32b;
CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_128b;
CRYP_Init(&CRYP_InitStructure);
/* Key Initialisation */
CRYP_KeyInitStructure.CRYP_Key2Left = AES128key[0];
CRYP_KeyInitStructure.CRYP_Key2Right= AES128key[1];
CRYP_KeyInitStructure.CRYP_Key3Left = AES128key[2];
CRYP_KeyInitStructure.CRYP_Key3Right= AES128key[3];
CRYP_KeyInit(&CRYP_KeyInitStructure);
/* Enable DMA Requests ******************************************************/
CRYP_DMACmd(CRYP_DMAReq_DataIN, ENABLE);
CRYP_DMACmd(CRYP_DMAReq_DataOUT, ENABLE);
/* DMA Configuration*********************************************************/
DMA_DeInit(DMA2_Stream5);
DMA_DeInit(DMA2_Stream6);
/* set common DMA parameters for Stream 5 and 6*/
DMA_InitStructure.DMA_Channel = DMA_Channel_2;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word;
DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
DMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh;
DMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Enable;
DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_HalfFull;
DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_BufferSize = DATA_SIZE;
/* Set the parameters to be configured for stream 6*/
DMA_InitStructure.DMA_PeripheralBaseAddr = CRYP_DIN_REG_ADDR;
DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)PlainData;
DMA_InitStructure.DMA_DIR = DMA_DIR_MemoryToPeripheral;
/* Configure the DMA Stream 6 */
DMA_Init(DMA2_Stream6, &DMA_InitStructure);
/* Set the parameters to be configured for stream 5*/
DMA_InitStructure.DMA_PeripheralBaseAddr = CRYP_DOUT_REG_ADDR;
DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)EncryptedData;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
/* Configure the DMA Stream 5 */
DMA_Init(DMA2_Stream5, &DMA_InitStructure);
/* Enable DMA streams*******************************************************/
DMA_Cmd(DMA2_Stream6, ENABLE);
DMA_Cmd(DMA2_Stream5, ENABLE);
/* Enable Crypto processor *************************************************/
CRYP_Cmd(ENABLE);
/* wait until the last transfer from OUT FIFO :
all encrypted Data are transferred from crypt processor */
while (DMA_GetFlagStatus(DMA2_Stream5, DMA_FLAG_TCIF5) == RESET);
/* Disable Crypto and DMA **************************************************/
CRYP_Cmd(DISABLE);
CRYP_DMACmd(CRYP_DMAReq_DataIN, DISABLE);
CRYP_DMACmd(CRYP_DMAReq_DataOUT, DISABLE);
DMA_Cmd(DMA2_Stream5, DISABLE);
DMA_Cmd(DMA2_Stream6, DISABLE);
}
/**
* @brief Decrypt Data using AES
* @note DATA transfer is done by DMA
* @note DMA2 stream6 channel2 is used to transfer data from memory (the
* EncryptedData Table) to CRYP Peripheral (the INPUT data register).
* @note DMA2 stream5 channel2 is used to transfer data from CRYP Peripheral
* (the OUTPUT data register to memory (the DecryptedData Table).
* @param None
* @retval None
*/
void AES128_Decrypt_DMA(void)
{
CRYP_InitTypeDef CRYP_InitStructure;
CRYP_KeyInitTypeDef CRYP_KeyInitStructure;
DMA_InitTypeDef DMA_InitStructure;
/* Enable CRYP clock */
RCC_AHB2PeriphClockCmd(RCC_AHB2Periph_CRYP, ENABLE);
/* Enable DMA2 clock */
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2, ENABLE);
/* CRYP configuration*******************************************************/
/* Crypto Init for Key preparation for Decryption process */
CRYP_InitStructure.CRYP_AlgoDir = CRYP_AlgoDir_Decrypt;
CRYP_InitStructure.CRYP_AlgoMode = CRYP_AlgoMode_AES_Key;
CRYP_InitStructure.CRYP_DataType = CRYP_DataType_32b;
CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_128b;
CRYP_Init(&CRYP_InitStructure);
/* Key Initialisation */
CRYP_KeyInitStructure.CRYP_Key2Left = AES128key[0];
CRYP_KeyInitStructure.CRYP_Key2Right= AES128key[1];
CRYP_KeyInitStructure.CRYP_Key3Left = AES128key[2];
CRYP_KeyInitStructure.CRYP_Key3Right= AES128key[3];
CRYP_KeyInit(&CRYP_KeyInitStructure);
/* Enable Crypto processor */
CRYP_Cmd(ENABLE);
/* wait until the Busy flag is reset */
while (CRYP_GetFlagStatus(CRYP_FLAG_BUSY) != RESET);
/* Disable Crypto processor */
CRYP_Cmd(DISABLE);
/* Crypto Init for Decryption process */
CRYP_InitStructure.CRYP_AlgoDir = CRYP_AlgoDir_Decrypt;
CRYP_InitStructure.CRYP_AlgoMode = CRYP_AlgoMode_AES_ECB;
CRYP_InitStructure.CRYP_DataType = CRYP_DataType_32b;
CRYP_InitStructure.CRYP_KeySize = CRYP_KeySize_128b;
CRYP_Init(&CRYP_InitStructure);
/* Enable DMA Requests ******************************************************/
CRYP_DMACmd(CRYP_DMAReq_DataIN, ENABLE);
CRYP_DMACmd(CRYP_DMAReq_DataOUT, ENABLE);
/* DMA Configuration*********************************************************/
DMA_DeInit(DMA2_Stream5);
DMA_DeInit(DMA2_Stream6);
/* set common DMA parameters for Stream 5 and 6*/
DMA_InitStructure.DMA_Channel = DMA_Channel_2;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word;
DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
DMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Enable;
DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_HalfFull;
DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;;
DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_BufferSize = DATA_SIZE;
/* Set the parameters to be configured for stream 6*/
DMA_InitStructure.DMA_PeripheralBaseAddr = CRYP_DIN_REG_ADDR;
DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)EncryptedData;
DMA_InitStructure.DMA_DIR = DMA_DIR_MemoryToPeripheral;
/* Configure the DMA Stream 6 */
DMA_Init(DMA2_Stream6, &DMA_InitStructure);
/* Set the parameters to be configured for stream 5*/
DMA_InitStructure.DMA_PeripheralBaseAddr = CRYP_DOUT_REG_ADDR;
DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)DecryptedData;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
/* Configure the DMA Stream 5 */
DMA_Init(DMA2_Stream5, &DMA_InitStructure);
/* Enable DMA streams*******************************************************/
DMA_Cmd(DMA2_Stream6, ENABLE);
DMA_Cmd(DMA2_Stream5, ENABLE);
/* Enable Crypto processor *************************************************/
CRYP_Cmd(ENABLE);
/* wait until the last transfer from OUT FIFO :
all encrypted Data are transferred from crypt processor */
while (DMA_GetFlagStatus(DMA2_Stream5, DMA_FLAG_TCIF5) == RESET);
/* Disable Crypto and DMA **************************************************/
CRYP_Cmd(DISABLE);
CRYP_DMACmd(CRYP_DMAReq_DataIN, DISABLE);
CRYP_DMACmd(CRYP_DMAReq_DataOUT, DISABLE);
DMA_Cmd(DMA2_Stream5, DISABLE);
DMA_Cmd(DMA2_Stream6, DISABLE);
DMA_ClearFlag(DMA2_Stream6, DMA_FLAG_TCIF5);
}
/**
* @brief Display Plain Data
* @param None
* @retval None
*/
void Display_PlainData(void)
{
uint32_t i=0;
uint8_t count=0;
printf(" \n\r======================================\n\r");
printf(" === CRYP AES-128 Using DMA Example ===\n\r");
printf(" ======================================\n\r");
printf(" ---------------------------------------\n\r");
printf(" Plain Data :\n\r");
printf(" ---------------------------------------\n\r");
for(i = 0; i < DATA_SIZE; i++)
{
printf("[0x%8X]", PlainData[i]);
count++;
if(count == 4)
{
count = 0;
printf(" Block %d \n\r", i/4);
}
}
printf(" ---------------------------------------\n\r");
printf(" Key :\n\r");
printf(" ---------------------------------------\n\r");
for(i = 0; i < 4; i++)
{
printf("[0x%8X]", AES128key[i]);
count++;
}
}
/**
* @brief Display Encrypted Data
* @param None
* @retval None
*/
void Display_EncryptedData(void)
{
uint32_t i=0;
uint8_t count=0;
printf("\n\r ---------------------------------------\n\r");
printf(" AES-128 Encrypted Data:\n\r");
printf(" ---------------------------------------\n\r");
for(i = 0; i < DATA_SIZE; i++)
{
printf("[0x%8X]", EncryptedData[i]);
count++;
if(count == 4)
{
count = 0;
printf(" Block %d \n\r", i/4);
}
}
}
/**
* @brief Display Decrypted Data
* @param None
* @retval None
*/
void Display_DecryptedData(void)
{
uint32_t i=0;
uint8_t count=0;
printf("\n\r ---------------------------------------\n\r");
printf(" AES-128 Decrypted Data:\n\r");
printf(" ---------------------------------------\n\r");
for(i = 0; i < DATA_SIZE; i++)
{
printf("[0x%8X]", DecryptedData[i]);
count++;
if(count == 4)
{
count = 0;
printf(" Block %d \n\r", i/4);
}
}
}
/**
* @brief USART configuration
* @param None
* @retval None
*/
void USART_Config(void)
{
/* USARTx configured as follow:
- BaudRate = 115200 baud
- Word Length = 8 Bits
- One Stop Bit
- No parity
- Hardware flow control disabled (RTS and CTS signals)
- Receive and transmit enabled
*/
USART_InitTypeDef USART_InitStructure;
USART_InitStructure.USART_BaudRate = 115200;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
STM_EVAL_COMInit(COM1, &USART_InitStructure);
}
/**
* @brief Retargets the C library printf function to the USART.
* @param None
* @retval None
*/
PUTCHAR_PROTOTYPE
{
/* Place your implementation of fputc here */
/* e.g. write a character to the USART */
USART_SendData(EVAL_COM1, (uint8_t) ch);
/* Loop until the end of transmission */
while (USART_GetFlagStatus(EVAL_COM1, USART_FLAG_TC) == RESET)
{}
return ch;
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,102 +0,0 @@
/**
@page AES_ECBmode_DMA Encrypt and Decrypt data using AES-128 Algo in ECB mode, with DMA
@verbatim
******************** (C) COPYRIGHT 2012 STMicroelectronics *******************
* @file CRYP/AES_ECBmode_DMA/readme.txt
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Description of the CRYP AES-128 Algo in ECB mode with DMA Example
******************************************************************************
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
@endverbatim
@par Example Description
This example provides a short description of how to use the CRYPTO peripheral to
encrypt and decrypt data using AES-128 Algorithm.
For this example, DMA is used to transfer data from memory to the CRYPTO processor
IN FIFO and also to transfer data from CRYPTO processor OUT FIFO to memory.
The data to be encrypted is a 640 bit data, which correspond to 5 AES Blocks.
This example behaves as below:
- AES Encryption (PlainData --> EncryptedData)
- AES Key prepation for decryption (Encryption Key --> Decryption Key)
- AES Decryption (EncryptedData --> DecryptedData)
The Plain data, encrypted data and decrypted data can be displayed on a PC
HyperTerminal using the USART (CN16).
The USARTx is configured as follow:
- BaudRate = 115200 baud
- Word Length = 8 Bits
- One Stop Bit
- No parity
- Hardware flow control disabled (RTS and CTS signals)
- Receive and transmit enabled
@par Directory contents
- CRYP/AES_ECBmode_DMA/system_stm32f2xx.c STM32F2xx system clock configuration file
- CRYP/AES_ECBmode_DMA/stm32f2xx_conf.h Library Configuration file
- CRYP/AES_ECBmode_DMA/stm32f2xx_it.h Interrupt handlers header file
- CRYP/AES_ECBmode_DMA/stm32f2xx_it.c Interrupt handlers
- CRYP/AES_ECBmode_DMA/main.c Main program
@note The "system_stm32f2xx.c" is generated by an automatic clock configuration
tool and can be easily customized to your own configuration.
To select different clock setup, use the "STM32F2xx_Clock_Configuration_V1.0.0.xls"
provided with the AN3362 package available on <a href="http://www.st.com/internet/mcu/family/141.jsp"> ST Microcontrollers </a>
@par Hardware and Software environment
- This example runs only on STM32F21x Devices (Cryptographic acceleration not
embedded in STM32F20x Devices).
- This example has been tested with STM322xG-EVAL RevB and can be easily tailored
to any other development board.
- STM322xG-EVAL Set-up
- Connect a null-modem female/female RS232 cable between the DB9 connector
CN16 (USART3) and PC serial port.
@note Make sure that jumper JP22 is in position 1-2
- Hyperterminal configuration:
- Word Length = 8 Bits
- One Stop Bit
- No parity
- BaudRate = 115200 baud
- flow control: None
@par How to use it ?
In order to make the program work, you must do the following :
- Copy all source files from this example folder to the template folder under
Project\STM32F2xx_StdPeriph_Template
- Open your preferred toolchain
- Rebuild all files and load your image into target memory
- Run the example
* <h3><center>&copy; COPYRIGHT STMicroelectronics</center></h3>
*/
@@ -1,94 +0,0 @@
/**
******************************************************************************
* @file CRYP/AES_ECBmode_DMA/stm32f2xx_conf.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Library configuration file.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_CONF_H
#define __STM32F2xx_CONF_H
/* Includes ------------------------------------------------------------------*/
/* Uncomment the line below to enable peripheral header file inclusion */
#include "stm32f2xx_adc.h"
#include "stm32f2xx_can.h"
#include "stm32f2xx_crc.h"
#include "stm32f2xx_cryp.h"
#include "stm32f2xx_dac.h"
#include "stm32f2xx_dbgmcu.h"
#include "stm32f2xx_dcmi.h"
#include "stm32f2xx_dma.h"
#include "stm32f2xx_exti.h"
#include "stm32f2xx_flash.h"
#include "stm32f2xx_fsmc.h"
#include "stm32f2xx_hash.h"
#include "stm32f2xx_gpio.h"
#include "stm32f2xx_i2c.h"
#include "stm32f2xx_iwdg.h"
#include "stm32f2xx_pwr.h"
#include "stm32f2xx_rcc.h"
#include "stm32f2xx_rng.h"
#include "stm32f2xx_rtc.h"
#include "stm32f2xx_sdio.h"
#include "stm32f2xx_spi.h"
#include "stm32f2xx_syscfg.h"
#include "stm32f2xx_tim.h"
#include "stm32f2xx_usart.h"
#include "stm32f2xx_wwdg.h"
#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* If an external clock source is used, then the value of the following define
should be set to the value of the external clock source, else, if no external
clock is used, keep this define commented */
/*#define I2S_EXTERNAL_CLOCK_VAL 12288000 */ /* Value of the external clock in Hz */
/* Uncomment the line below to expanse the "assert_param" macro in the
Standard Peripheral Library drivers code */
/* #define USE_FULL_ASSERT 1 */
/* Exported macro ------------------------------------------------------------*/
#ifdef USE_FULL_ASSERT
/**
* @brief The assert_param macro is used for function's parameters check.
* @param expr: If expr is false, it calls assert_failed function
* which reports the name of the source file and the source
* line number of the call that failed.
* If expr is true, it returns no value.
* @retval None
*/
#define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__))
/* Exported functions ------------------------------------------------------- */
void assert_failed(uint8_t* file, uint32_t line);
#else
#define assert_param(expr) ((void)0)
#endif /* USE_FULL_ASSERT */
#endif /* __STM32F2xx_CONF_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,173 +0,0 @@
/**
******************************************************************************
* @file CRYP/AES_ECBmode_DMA/stm32f2xx_it.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main Interrupt Service Routines.
* This file provides template for all exceptions handler and
* peripherals interrupt service routine.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx_it.h"
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup AES_ECBmode_DMA
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/******************************************************************************/
/* Cortex-M3 Processor Exceptions Handlers */
/******************************************************************************/
/**
* @brief This function handles NMI exception.
* @param None
* @retval None
*/
void NMI_Handler(void)
{
}
/**
* @brief This function handles Hard Fault exception.
* @param None
* @retval None
*/
void HardFault_Handler(void)
{
/* Go to infinite loop when Hard Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Memory Manage exception.
* @param None
* @retval None
*/
void MemManage_Handler(void)
{
/* Go to infinite loop when Memory Manage exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Bus Fault exception.
* @param None
* @retval None
*/
void BusFault_Handler(void)
{
/* Go to infinite loop when Bus Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Usage Fault exception.
* @param None
* @retval None
*/
void UsageFault_Handler(void)
{
/* Go to infinite loop when Usage Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles SVCall exception.
* @param None
* @retval None
*/
void SVC_Handler(void)
{
}
/**
* @brief This function handles Debug Monitor exception.
* @param None
* @retval None
*/
void DebugMon_Handler(void)
{
}
/**
* @brief This function handles PendSVC exception.
* @param None
* @retval None
*/
void PendSV_Handler(void)
{
}
/**
* @brief This function handles SysTick Handler.
* @param None
* @retval None
*/
void SysTick_Handler(void)
{
}
/******************************************************************************/
/* STM32F2xx Peripherals Interrupt Handlers */
/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */
/* available peripheral interrupt handler's name please refer to the startup */
/* file (startup_stm32f2xx.s). */
/******************************************************************************/
/**
* @brief This function handles PPP interrupt request.
* @param None
* @retval None
*/
/*void PPP_IRQHandler(void)
{
}*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,60 +0,0 @@
/**
******************************************************************************
* @file CRYP/AES_ECBmode_DMA/stm32f2xx_it.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief This file contains the headers of the interrupt handlers.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_IT_H
#define __STM32F2xx_IT_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
void NMI_Handler(void);
void HardFault_Handler(void);
void MemManage_Handler(void);
void BusFault_Handler(void);
void UsageFault_Handler(void);
void SVC_Handler(void);
void DebugMon_Handler(void);
void PendSV_Handler(void);
void SysTick_Handler(void);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F2xx_IT_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,542 +0,0 @@
/**
******************************************************************************
* @file system_stm32f2xx.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File.
* This file contains the system clock configuration for STM32F2xx devices,
* and is generated by the clock configuration tool
* "STM32f2xx_Clock_Configuration_V1.0.0.xls"
*
* 1. This file provides two functions and one global variable to be called from
* user application:
* - SystemInit(): Setups the system clock (System clock source, PLL Multiplier
* and Divider factors, AHB/APBx prescalers and Flash settings),
* depending on the configuration made in the clock xls tool.
* This function is called at startup just after reset and
* before branch to main program. This call is made inside
* the "startup_stm32f2xx.s" file.
*
* - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
* by the user application to setup the SysTick
* timer or configure other parameters.
*
* - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
* be called whenever the core clock is changed
* during program execution.
*
* 2. After each device reset the HSI (16 MHz) is used as system clock source.
* Then SystemInit() function is called, in "startup_stm32f2xx.s" file, to
* configure the system clock before to branch to main program.
*
* 3. If the system clock source selected by user fails to startup, the SystemInit()
* function will do nothing and HSI still used as system clock source. User can
* add some code to deal with this issue inside the SetSysClock() function.
*
* 4. The default value of HSE crystal is set to 25MHz, refer to "HSE_VALUE" define
* in "stm32f2xx.h" file. When HSE is used as system clock source, directly or
* through PLL, and you are using different crystal you have to adapt the HSE
* value to your own configuration.
*
* 5. This file configures the system clock as follows:
*=============================================================================
*=============================================================================
* Supported STM32F2xx device revision | Rev B and Y
*-----------------------------------------------------------------------------
* System Clock source | PLL (HSE)
*-----------------------------------------------------------------------------
* SYSCLK(Hz) | 120000000
*-----------------------------------------------------------------------------
* HCLK(Hz) | 120000000
*-----------------------------------------------------------------------------
* AHB Prescaler | 1
*-----------------------------------------------------------------------------
* APB1 Prescaler | 4
*-----------------------------------------------------------------------------
* APB2 Prescaler | 2
*-----------------------------------------------------------------------------
* HSE Frequency(Hz) | 25000000
*-----------------------------------------------------------------------------
* PLL_M | 25
*-----------------------------------------------------------------------------
* PLL_N | 240
*-----------------------------------------------------------------------------
* PLL_P | 2
*-----------------------------------------------------------------------------
* PLL_Q | 5
*-----------------------------------------------------------------------------
* PLLI2S_N | NA
*-----------------------------------------------------------------------------
* PLLI2S_R | NA
*-----------------------------------------------------------------------------
* I2S input clock | NA
*-----------------------------------------------------------------------------
* VDD(V) | 3.3
*-----------------------------------------------------------------------------
* Flash Latency(WS) | 3
*-----------------------------------------------------------------------------
* Prefetch Buffer | ON
*-----------------------------------------------------------------------------
* Instruction cache | ON
*-----------------------------------------------------------------------------
* Data cache | ON
*-----------------------------------------------------------------------------
* Require 48MHz for USB OTG FS, | Enabled
* SDIO and RNG clock |
*-----------------------------------------------------------------------------
*=============================================================================
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/** @addtogroup CMSIS
* @{
*/
/** @addtogroup stm32f2xx_system
* @{
*/
/** @addtogroup STM32F2xx_System_Private_Includes
* @{
*/
#include "stm32f2xx.h"
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Defines
* @{
*/
/*!< Uncomment the following line if you need to use external SRAM mounted
on STM322xG_EVAL board as data memory */
/* #define DATA_IN_ExtSRAM */
/*!< Uncomment the following line if you need to relocate your vector Table in
Internal SRAM. */
/* #define VECT_TAB_SRAM */
#define VECT_TAB_OFFSET 0x00 /*!< Vector Table base offset field.
This value must be a multiple of 0x200. */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N */
#define PLL_M 25
#define PLL_N 240
/* SYSCLK = PLL_VCO / PLL_P */
#define PLL_P 2
/* USB OTG FS, SDIO and RNG Clock = PLL_VCO / PLLQ */
#define PLL_Q 5
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Macros
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Variables
* @{
*/
uint32_t SystemCoreClock = 120000000;
__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_FunctionPrototypes
* @{
*/
static void SetSysClock(void);
#ifdef DATA_IN_ExtSRAM
static void SystemInit_ExtMemCtl(void);
#endif /* DATA_IN_ExtSRAM */
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Functions
* @{
*/
/**
* @brief Setup the microcontroller system
* Initialize the Embedded Flash Interface, the PLL and update the
* SystemFrequency variable.
* @param None
* @retval None
*/
void SystemInit(void)
{
/* Reset the RCC clock configuration to the default reset state ------------*/
/* Set HSION bit */
RCC->CR |= (uint32_t)0x00000001;
/* Reset CFGR register */
RCC->CFGR = 0x00000000;
/* Reset HSEON, CSSON and PLLON bits */
RCC->CR &= (uint32_t)0xFEF6FFFF;
/* Reset PLLCFGR register */
RCC->PLLCFGR = 0x24003010;
/* Reset HSEBYP bit */
RCC->CR &= (uint32_t)0xFFFBFFFF;
/* Disable all interrupts */
RCC->CIR = 0x00000000;
#ifdef DATA_IN_ExtSRAM
SystemInit_ExtMemCtl();
#endif /* DATA_IN_ExtSRAM */
/* Configure the System clock source, PLL Multiplier and Divider factors,
AHB/APBx prescalers and Flash settings ----------------------------------*/
SetSysClock();
/* Configure the Vector Table location add offset address ------------------*/
#ifdef VECT_TAB_SRAM
SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */
#else
SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */
#endif
}
/**
* @brief Update SystemCoreClock variable according to Clock Register Values.
* The SystemCoreClock variable contains the core clock (HCLK), it can
* be used by the user application to setup the SysTick timer or configure
* other parameters.
*
* @note Each time the core clock (HCLK) changes, this function must be called
* to update SystemCoreClock variable value. Otherwise, any configuration
* based on this variable will be incorrect.
*
* @note - The system frequency computed by this function is not the real
* frequency in the chip. It is calculated based on the predefined
* constant and the selected clock source:
*
* - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*)
*
* - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**)
*
* - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**)
* or HSI_VALUE(*) multiplied/divided by the PLL factors.
*
* (*) HSI_VALUE is a constant defined in stm32f2xx.h file (default value
* 16 MHz) but the real value may vary depending on the variations
* in voltage and temperature.
*
* (**) HSE_VALUE is a constant defined in stm32f2xx.h file (default value
* 25 MHz), user has to ensure that HSE_VALUE is same as the real
* frequency of the crystal used. Otherwise, this function may
* have wrong result.
*
* - The result of this function could be not correct when using fractional
* value for HSE crystal.
*
* @param None
* @retval None
*/
void SystemCoreClockUpdate(void)
{
uint32_t tmp = 0, pllvco = 0, pllp = 2, pllsource = 0, pllm = 2;
/* Get SYSCLK source -------------------------------------------------------*/
tmp = RCC->CFGR & RCC_CFGR_SWS;
switch (tmp)
{
case 0x00: /* HSI used as system clock source */
SystemCoreClock = HSI_VALUE;
break;
case 0x04: /* HSE used as system clock source */
SystemCoreClock = HSE_VALUE;
break;
case 0x08: /* PLL used as system clock source */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N
SYSCLK = PLL_VCO / PLL_P
*/
pllsource = (RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) >> 22;
pllm = RCC->PLLCFGR & RCC_PLLCFGR_PLLM;
if (pllsource != 0)
{
/* HSE used as PLL clock source */
pllvco = (HSE_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
}
else
{
/* HSI used as PLL clock source */
pllvco = (HSI_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
}
pllp = (((RCC->PLLCFGR & RCC_PLLCFGR_PLLP) >>16) + 1 ) *2;
SystemCoreClock = pllvco/pllp;
break;
default:
SystemCoreClock = HSI_VALUE;
break;
}
/* Compute HCLK frequency --------------------------------------------------*/
/* Get HCLK prescaler */
tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)];
/* HCLK frequency */
SystemCoreClock >>= tmp;
}
/**
* @brief Configures the System clock source, PLL Multiplier and Divider factors,
* AHB/APBx prescalers and Flash settings
* @Note This function should be called only once the RCC clock configuration
* is reset to the default reset state (done in SystemInit() function).
* @param None
* @retval None
*/
static void SetSysClock(void)
{
/******************************************************************************/
/* PLL (clocked by HSE) used as System clock source */
/******************************************************************************/
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
/* Enable HSE */
RCC->CR |= ((uint32_t)RCC_CR_HSEON);
/* Wait till HSE is ready and if Time out is reached exit */
do
{
HSEStatus = RCC->CR & RCC_CR_HSERDY;
StartUpCounter++;
} while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
if ((RCC->CR & RCC_CR_HSERDY) != RESET)
{
HSEStatus = (uint32_t)0x01;
}
else
{
HSEStatus = (uint32_t)0x00;
}
if (HSEStatus == (uint32_t)0x01)
{
/* HCLK = SYSCLK / 1*/
RCC->CFGR |= RCC_CFGR_HPRE_DIV1;
/* PCLK2 = HCLK / 2*/
RCC->CFGR |= RCC_CFGR_PPRE2_DIV2;
/* PCLK1 = HCLK / 4*/
RCC->CFGR |= RCC_CFGR_PPRE1_DIV4;
/* Configure the main PLL */
RCC->PLLCFGR = PLL_M | (PLL_N << 6) | (((PLL_P >> 1) -1) << 16) |
(RCC_PLLCFGR_PLLSRC_HSE) | (PLL_Q << 24);
/* Enable the main PLL */
RCC->CR |= RCC_CR_PLLON;
/* Wait till the main PLL is ready */
while((RCC->CR & RCC_CR_PLLRDY) == 0)
{
}
/* Configure Flash prefetch, Instruction cache, Data cache and wait state */
FLASH->ACR = FLASH_ACR_PRFTEN | FLASH_ACR_ICEN | FLASH_ACR_DCEN | FLASH_ACR_LATENCY_3WS;
/* Select the main PLL as system clock source */
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW));
RCC->CFGR |= RCC_CFGR_SW_PLL;
/* Wait till the main PLL is used as system clock source */
while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS ) != RCC_CFGR_SWS_PLL);
{
}
}
else
{ /* If HSE fails to start-up, the application will have wrong clock
configuration. User can add here some code to deal with this error */
}
}
/**
* @brief Setup the external memory controller. Called in startup_stm32f2xx.s
* before jump to __main
* @param None
* @retval None
*/
#ifdef DATA_IN_ExtSRAM
/**
* @brief Setup the external memory controller.
* Called in startup_stm32f2xx.s before jump to main.
* This function configures the external SRAM mounted on STM322xG_EVAL board
* This SRAM will be used as program data memory (including heap and stack).
* @param None
* @retval None
*/
void SystemInit_ExtMemCtl(void)
{
/*-- GPIOs Configuration -----------------------------------------------------*/
/*
+-------------------+--------------------+------------------+------------------+
+ SRAM pins assignment +
+-------------------+--------------------+------------------+------------------+
| PD0 <-> FSMC_D2 | PE0 <-> FSMC_NBL0 | PF0 <-> FSMC_A0 | PG0 <-> FSMC_A10 |
| PD1 <-> FSMC_D3 | PE1 <-> FSMC_NBL1 | PF1 <-> FSMC_A1 | PG1 <-> FSMC_A11 |
| PD4 <-> FSMC_NOE | PE7 <-> FSMC_D4 | PF2 <-> FSMC_A2 | PG2 <-> FSMC_A12 |
| PD5 <-> FSMC_NWE | PE8 <-> FSMC_D5 | PF3 <-> FSMC_A3 | PG3 <-> FSMC_A13 |
| PD8 <-> FSMC_D13 | PE9 <-> FSMC_D6 | PF4 <-> FSMC_A4 | PG4 <-> FSMC_A14 |
| PD9 <-> FSMC_D14 | PE10 <-> FSMC_D7 | PF5 <-> FSMC_A5 | PG5 <-> FSMC_A15 |
| PD10 <-> FSMC_D15 | PE11 <-> FSMC_D8 | PF12 <-> FSMC_A6 | PG9 <-> FSMC_NE2 |
| PD11 <-> FSMC_A16 | PE12 <-> FSMC_D9 | PF13 <-> FSMC_A7 |------------------+
| PD12 <-> FSMC_A17 | PE13 <-> FSMC_D10 | PF14 <-> FSMC_A8 |
| PD14 <-> FSMC_D0 | PE14 <-> FSMC_D11 | PF15 <-> FSMC_A9 |
| PD15 <-> FSMC_D1 | PE15 <-> FSMC_D12 |------------------+
+-------------------+--------------------+
*/
/* Enable GPIOD, GPIOE, GPIOF and GPIOG interface clock */
RCC->AHB1ENR = 0x00000078;
/* Connect PDx pins to FSMC Alternate function */
GPIOD->AFR[0] = 0x00cc00cc;
GPIOD->AFR[1] = 0xcc0ccccc;
/* Configure PDx pins in Alternate function mode */
GPIOD->MODER = 0xa2aa0a0a;
/* Configure PDx pins speed to 100 MHz */
GPIOD->OSPEEDR = 0xf3ff0f0f;
/* Configure PDx pins Output type to push-pull */
GPIOD->OTYPER = 0x00000000;
/* No pull-up, pull-down for PDx pins */
GPIOD->PUPDR = 0x00000000;
/* Connect PEx pins to FSMC Alternate function */
GPIOE->AFR[0] = 0xc00000cc;
GPIOE->AFR[1] = 0xcccccccc;
/* Configure PEx pins in Alternate function mode */
GPIOE->MODER = 0xaaaa800a;
/* Configure PEx pins speed to 100 MHz */
GPIOE->OSPEEDR = 0xffffc00f;
/* Configure PEx pins Output type to push-pull */
GPIOE->OTYPER = 0x00000000;
/* No pull-up, pull-down for PEx pins */
GPIOE->PUPDR = 0x00000000;
/* Connect PFx pins to FSMC Alternate function */
GPIOF->AFR[0] = 0x00cccccc;
GPIOF->AFR[1] = 0xcccc0000;
/* Configure PFx pins in Alternate function mode */
GPIOF->MODER = 0xaa000aaa;
/* Configure PFx pins speed to 100 MHz */
GPIOF->OSPEEDR = 0xff000fff;
/* Configure PFx pins Output type to push-pull */
GPIOF->OTYPER = 0x00000000;
/* No pull-up, pull-down for PFx pins */
GPIOF->PUPDR = 0x00000000;
/* Connect PGx pins to FSMC Alternate function */
GPIOG->AFR[0] = 0x00cccccc;
GPIOG->AFR[1] = 0x000000c0;
/* Configure PGx pins in Alternate function mode */
GPIOG->MODER = 0x00080aaa;
/* Configure PGx pins speed to 100 MHz */
GPIOG->OSPEEDR = 0x000c0fff;
/* Configure PGx pins Output type to push-pull */
GPIOG->OTYPER = 0x00000000;
/* No pull-up, pull-down for PGx pins */
GPIOG->PUPDR = 0x00000000;
/*-- FSMC Configuration ------------------------------------------------------*/
/* Enable the FSMC interface clock */
RCC->AHB3ENR = 0x00000001;
/* Configure and enable Bank1_SRAM2 */
FSMC_Bank1->BTCR[2] = 0x00001015;
FSMC_Bank1->BTCR[3] = 0x00010400;
FSMC_Bank1E->BWTR[2] = 0x0fffffff;
/*
Bank1_SRAM2 is configured as follow:
p.FSMC_AddressSetupTime = 0;
p.FSMC_AddressHoldTime = 0;
p.FSMC_DataSetupTime = 4;
p.FSMC_BusTurnAroundDuration = 1;
p.FSMC_CLKDivision = 0;
p.FSMC_DataLatency = 0;
p.FSMC_AccessMode = FSMC_AccessMode_A;
FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM2;
FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;
FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_PSRAM;
FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b;
FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_AsynchronousWait = FSMC_AsynchronousWait_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState;
FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;
FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;
FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p;
FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;
*/
}
#endif /* DATA_IN_ExtSRAM */
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,170 +0,0 @@
=============================================================
================= Crypt Using HW Crypto ====================
============================================================
---------------------------------------
Plain Data :
---------------------------------------
[0x6B][0xC1][0xBE][0xE2][0x2E][0x40][0x9F][0x96][0xE9][0x3D][0x7E][0x11][0x73][0x93][0x17][0x2A] Block 0
[0xAE][0x2D][0x8A][0x57][0x1E][0x03][0xAC][0x9C][0x9E][0xB7][0x6F][0xAC][0x45][0xAF][0x8E][0x51] Block 1
[0x30][0xC8][0x1C][0x46][0xA3][0x5C][0xE4][0x11][0xE5][0xFB][0xC1][0x19][0x1A][0x0A][0x52][0xEF] Block 2
[0xF6][0x9F][0x24][0x45][0xDF][0x4F][0x9B][0x17][0xAD][0x2B][0x41][0x7B][0xE6][0x6C][0x37][0x10] Block 3
Press any key to continue...
=======================================
Encrypted Data with AES 128 Mode ECB
---------------------------------------
[0x3A][0xD7][0x7B][0xB4][0x0D][0x7A][0x36][0x60][0xA8][0x9E][0xCA][0xF3][0x24][0x66][0xEF][0x97] Block 0
[0xF5][0xD3][0xD5][0x85][0x03][0xB9][0x69][0x9D][0xE7][0x85][0x89][0x5A][0x96][0xFD][0xBA][0xAF] Block 1
[0x43][0xB1][0xCD][0x7F][0x59][0x8E][0xCE][0x23][0x88][0x1B][0x00][0xE3][0xED][0x03][0x06][0x88] Block 2
[0x7B][0x0C][0x78][0x5E][0x27][0xE8][0xAD][0x3F][0x82][0x23][0x20][0x71][0x04][0x72][0x5D][0xD4] Block 3
=======================================
Encrypted Data with AES 192 Mode ECB
---------------------------------------
[0xBD][0x33][0x4F][0x1D][0x6E][0x45][0xF2][0x5F][0xF7][0x12][0xA2][0x14][0x57][0x1F][0xA5][0xCC] Block 0
[0x97][0x41][0x04][0x84][0x6D][0x0A][0xD3][0xAD][0x77][0x34][0xEC][0xB3][0xEC][0xEE][0x4E][0xEF] Block 1
[0xEF][0x7A][0xFD][0x22][0x70][0xE2][0xE6][0x0A][0xDC][0xE0][0xBA][0x2F][0xAC][0xE6][0x44][0x4E] Block 2
[0x9A][0x4B][0x41][0xBA][0x73][0x8D][0x6C][0x72][0xFB][0x16][0x69][0x16][0x03][0xC1][0x8E][0x0E] Block 3
=======================================
Encrypted Data with AES 256 Mode ECB
---------------------------------------
[0xF3][0xEE][0xD1][0xBD][0xB5][0xD2][0xA0][0x3C][0x06][0x4B][0x5A][0x7E][0x3D][0xB1][0x81][0xF8] Block 0
[0x59][0x1C][0xCB][0x10][0xD4][0x10][0xED][0x26][0xDC][0x5B][0xA7][0x4A][0x31][0x36][0x28][0x70] Block 1
[0xB6][0xED][0x21][0xB9][0x9C][0xA6][0xF4][0xF9][0xF1][0x53][0xE7][0xB1][0xBE][0xAF][0xED][0x1D] Block 2
[0x23][0x30][0x4B][0x7A][0x39][0xF9][0xF3][0xFF][0x06][0x7D][0x8D][0x8F][0x9E][0x24][0xEC][0xC7] Block 3
Press any key to continue...
=======================================
Decrypted Data with AES 128 Mode ECB
---------------------------------------
[0x6B][0xC0][0xBC][0xE1][0x2A][0x45][0x99][0x91][0xE1][0x34][0x74][0x1A][0x7F][0x9E][0x19][0x25] Block 0
[0xD8][0x64][0x21][0xFB][0x9F][0x1A][0x1E][0xDA][0x50][0x5E][0xE1][0x37][0x57][0x46][0x97][0x2C] Block 1
[0x60][0x4E][0xD7][0xDD][0xF3][0x2E][0xFD][0xFF][0x70][0x20][0xD0][0x23][0x8B][0x7C][0x2A][0x5D] Block 2
[0x85][0x21][0xF2][0xFD][0x3C][0x8E][0xEF][0x2C][0xDC][0x3D][0xA7][0xE5][0xC4][0x4E][0xA2][0x06] Block 3
=======================================
Decrypted Data with AES 192 Mode ECB
---------------------------------------
[0x4F][0x29][0xDF][0x6B][0x08][0x18][0x89][0xD1][0xD5][0x32][0x39][0x5C][0xF9][0x68][0x6D][0x3C] Block 0
[0xDA][0x32][0x3A][0x59][0x4B][0x66][0x84][0x2B][0x0C][0x2C][0x7D][0x54][0x26][0xBA][0xDB][0x43] Block 1
[0x63][0xCC][0x39][0x59][0x12][0x82][0xF5][0x61][0xBB][0xC5][0xEC][0x77][0xD8][0x39][0x56][0xAE] Block 2
[0xD5][0x70][0xFD][0x6D][0x5B][0x9E][0x8E][0x40][0xAE][0x2D][0xBB][0xF2][0x14][0xC3][0x80][0x7E] Block 3
=======================================
Decrypted Data with AES 256 Mode ECB
---------------------------------------
[0xBB][0xC4][0x2D][0x8F][0x95][0x09][0xDB][0x39][0x1F][0xD8][0xB6][0x44][0x81][0xE6][0x1E][0xED] Block 0
[0x6D][0x7F][0xD8][0x8D][0x64][0x96][0x07][0x14][0xB8][0x12][0xDD][0xB8][0x16][0x75][0xF2][0x20] Block 1
[0x6E][0xF9][0xB4][0x81][0x8E][0x70][0x61][0x4D][0x76][0x0C][0x03][0xE6][0xE1][0xB7][0xE1][0xED] Block 2
[0x81][0x4B][0xC2][0x11][0xD7][0x9C][0x47][0xDF][0xE3][0xDC][0x76][0x15][0xBD][0x2D][0xEB][0x86] Block 3
Press any key to continue...
=======================================
Encrypted Data with AES 128 Mode CBC
---------------------------------------
[0x76][0x49][0xAB][0xAC][0x81][0x19][0xB2][0x46][0xCE][0xE9][0x8E][0x9B][0x12][0xE9][0x19][0x7D] Block 0
[0x50][0x86][0xCB][0x9B][0x50][0x72][0x19][0xEE][0x95][0xDB][0x11][0x3A][0x91][0x76][0x78][0xB2] Block 1
[0x73][0xBE][0xD6][0xB8][0xE3][0xC1][0x74][0x3B][0x71][0x16][0xE6][0x9E][0x22][0x22][0x95][0x16] Block 2
[0x3F][0xF1][0xCA][0xA1][0x68][0x1F][0xAC][0x09][0x12][0x0E][0xCA][0x30][0x75][0x86][0xE1][0xA7] Block 3
=======================================
Encrypted Data with AES 192 Mode CBC
---------------------------------------
[0x4F][0x02][0x1D][0xB2][0x43][0xBC][0x63][0x3D][0x71][0x78][0x18][0x3A][0x9F][0xA0][0x71][0xE8] Block 0
[0xB4][0xD9][0xAD][0xA9][0xAD][0x7D][0xED][0xF4][0xE5][0xE7][0x38][0x76][0x3F][0x69][0x14][0x5A] Block 1
[0x57][0x1B][0x24][0x20][0x12][0xFB][0x7A][0xE0][0x7F][0xA9][0xBA][0xAC][0x3D][0xF1][0x02][0xE0] Block 2
[0x08][0xB0][0xE2][0x79][0x88][0x59][0x88][0x81][0xD9][0x20][0xA9][0xE6][0x4F][0x56][0x15][0xCD] Block 3
=======================================
Encrypted Data with AES 256 Mode CBC
---------------------------------------
[0xF5][0x8C][0x4C][0x04][0xD6][0xE5][0xF1][0xBA][0x77][0x9E][0xAB][0xFB][0x5F][0x7B][0xFB][0xD6] Block 0
[0x9C][0xFC][0x4E][0x96][0x7E][0xDB][0x80][0x8D][0x67][0x9F][0x77][0x7B][0xC6][0x70][0x2C][0x7D] Block 1
[0x39][0xF2][0x33][0x69][0xA9][0xD9][0xBA][0xCF][0xA5][0x30][0xE2][0x63][0x04][0x23][0x14][0x61] Block 2
[0xB2][0xEB][0x05][0xE2][0xC3][0x9B][0xE9][0xFC][0xDA][0x6C][0x19][0x07][0x8C][0x6A][0x9D][0x1B] Block 3
Press any key to continue...
=======================================
Decrypted Data with AES 128 Mode CBC
---------------------------------------
[0x6B][0xC1][0xBE][0xE2][0x2E][0x40][0x9F][0x96][0xE9][0x3D][0x7E][0x11][0x73][0x93][0x17][0x2A] Block 0
[0xAE][0x2D][0x8A][0x57][0x1E][0x03][0xAC][0x9C][0x9E][0xB7][0x6F][0xAC][0x45][0xAF][0x8E][0x51] Block 1
[0x30][0xC8][0x1C][0x46][0xA3][0x5C][0xE4][0x11][0xE5][0xFB][0xC1][0x19][0x1A][0x0A][0x52][0xEF] Block 2
[0xF6][0x9F][0x24][0x45][0xDF][0x4F][0x9B][0x17][0xAD][0x2B][0x41][0x7B][0xE6][0x6C][0x37][0x10] Block 3
=======================================
Decrypted Data with AES 192 Mode CBC
---------------------------------------
[0x4F][0x28][0xDD][0x68][0x0C][0x1D][0x8F][0xD6][0xDD][0x3B][0x33][0x57][0xF5][0x65][0x63][0x33] Block 0
[0xAC][0x7B][0x91][0xF5][0xCA][0x7F][0x36][0x6D][0xC2][0xC5][0xF3][0xCF][0x34][0x53][0xC2][0x3E] Block 1
[0x33][0x4A][0xF2][0xC2][0x42][0xF0][0xEC][0x8F][0x2E][0x1E][0xFD][0x4D][0x49][0x4F][0x2E][0x1C] Block 2
[0xA6][0xCE][0x2B][0xD5][0xB8][0x5F][0xFA][0x7B][0xDF][0x3B][0x5D][0x6C][0x36][0xE1][0x15][0x68] Block 3
=======================================
Decrypted Data with AES 256 Mode CBC
---------------------------------------
[0xBB][0xC5][0x2F][0x8C][0x91][0x0C][0xDD][0x3E][0x17][0xD1][0xBC][0x4F][0x8D][0xEB][0x10][0xE2] Block 0
[0x1B][0x36][0x73][0x21][0xE5][0x8F][0xB5][0x52][0x76][0xFB][0x53][0x23][0x04][0x9C][0xEB][0x5D] Block 1
[0x3E][0x7F][0x7F][0x1A][0xDE][0x02][0x78][0xA3][0xE3][0xD7][0x12][0xDC][0x70][0xC1][0x99][0x5F] Block 2
[0xF2][0xF5][0x14][0xA9][0x34][0x5D][0x33][0xE4][0x92][0xCA][0x90][0x8B][0x9F][0x0F][0x7E][0x90] Block 3
Press any key to continue...
=======================================
Encrypted Data with AES 128 Mode CTR
---------------------------------------
[0x3B][0x3F][0xD9][0x2E][0xB7][0x2D][0xAD][0x20][0x33][0x34][0x49][0xF8][0xE8][0x3C][0xFB][0x4A] Block 0
[0x01][0x0C][0x04][0x19][0x99][0xE0][0x3F][0x36][0x44][0x86][0x24][0x48][0x3E][0x58][0x2D][0x0E] Block 1
[0xA6][0x22][0x93][0xCF][0xA6][0xDF][0x74][0x53][0x5C][0x35][0x41][0x81][0x16][0x87][0x74][0xDF] Block 2
[0x2D][0x55][0xA5][0x47][0x06][0x27][0x3C][0x50][0xD7][0xB4][0xF8][0xA8][0xCD][0xDC][0x6E][0xD7] Block 3
=======================================
Encrypted Data with AES 192 Mode CTR
---------------------------------------
[0xCD][0xC8][0x0D][0x6F][0xDD][0xF1][0x8C][0xAB][0x34][0xC2][0x59][0x09][0xC9][0x9A][0x41][0x74] Block 0
[0x37][0xD8][0xA6][0x39][0x17][0x1F][0xDC][0xCA][0x63][0xEB][0xD1][0x7C][0xE2][0xD7][0x32][0x1A] Block 1
[0x79][0xA0][0xC9][0x6B][0x53][0xC7][0xEE][0xEC][0xD9][0xED][0x71][0x57][0xC4][0x44][0xFC][0x7A] Block 2
[0x84][0x5C][0x37][0xB2][0xF5][0x11][0x69][0x7B][0x0E][0x89][0xD5][0xED][0x60][0xC4][0xD4][0x9E] Block 3
=======================================
Encrypted Data with AES 256 Mode CTR
---------------------------------------
[0xDC][0x7E][0x84][0xBF][0xDA][0x79][0x16][0x4B][0x7E][0xCD][0x84][0x86][0x98][0x5D][0x38][0x60] Block 0
[0xD5][0x77][0x78][0x8B][0x8D][0x8A][0x85][0x74][0x55][0x13][0xA5][0xD5][0x0F][0x82][0x1F][0x30] Block 1
[0xFF][0xE9][0x6D][0x5C][0xF5][0x4B][0x23][0x8D][0xCC][0x8D][0x67][0x83][0xA8][0x7F][0x3B][0xEA] Block 2
[0xE9][0xAF][0x54][0x63][0x44][0xCB][0x9C][0xA4][0xD1][0xE5][0x53][0xFF][0xC0][0x6B][0xC7][0x3E] Block 3
Press any key to continue...
=======================================
Decrypted Data with AES 128 Mode CTR
---------------------------------------
[0x26][0xB7][0xCC][0x60][0x18][0x74][0x80][0xF0][0x14][0xE0][0xB9][0x72][0x89][0x46][0xF5][0x1D] Block 0
[0xFF][0xA7][0x45][0xD5][0xD7][0x91][0x8A][0x44][0x4F][0xEA][0x5A][0xDE][0xEA][0x81][0xDB][0xED] Block 1
[0xE5][0x54][0x59][0x31][0xE6][0x42][0xE4][0x79][0xC8][0xD8][0x66][0x06][0x2E][0xAF][0xB3][0x26] Block 2
[0xE4][0x3B][0x4B][0xA3][0xB1][0x77][0x0B][0x4E][0x68][0x91][0x73][0xE3][0x5E][0x36][0xB8][0x60] Block 3
=======================================
Decrypted Data with AES 192 Mode CTR
---------------------------------------
[0xD0][0x40][0x18][0x21][0x72][0xA8][0xA1][0x7B][0x13][0x16][0xA9][0x83][0xA8][0xE0][0x4F][0x23] Block 0
[0xC9][0x73][0xE7][0xF5][0x59][0x6E][0x69][0xB8][0x68][0x87][0xAF][0xEA][0x36][0x0E][0xC4][0xF9] Block 1
[0x3A][0xD6][0x03][0x95][0x13][0x5A][0x7E][0xC6][0x4D][0x00][0x56][0xD0][0xFC][0x6C][0x3B][0x83] Block 2
[0x4D][0x32][0xD9][0x56][0x42][0x41][0x5E][0x65][0xB1][0xAC][0x5E][0xA6][0xF3][0x2E][0x02][0x29] Block 3
=======================================
Decrypted Data with AES 256 Mode CTR
---------------------------------------
[0xC1][0xF6][0x91][0xF1][0x75][0x20][0x3B][0x9B][0x59][0x19][0x74][0x0C][0xF9][0x27][0x36][0x37] Block 0
[0x2B][0xDC][0x39][0x47][0xC3][0xFB][0x30][0x06][0x5E][0x7F][0xDB][0x43][0xDB][0x5B][0xE9][0xD3] Block 1
[0xBC][0x9F][0xA7][0xA2][0xB5][0xD6][0xB3][0xA7][0x58][0x60][0x40][0x04][0x90][0x57][0xFC][0x13] Block 2
[0x20][0xC1][0xBA][0x87][0xF3][0x9B][0xAB][0xBA][0x6E][0xC0][0xD8][0xB4][0x53][0x81][0x11][0x89] Block 3
Press any key to continue...
Example restarted...
@@ -1,543 +0,0 @@
/**
******************************************************************************
* @file CRYP/AES_modes/main.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main program body
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
#include "stm322xg_eval.h"
#include "stdio.h"
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup AES_modes
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define AES_TEXT_SIZE 64
#define ECB 1
#define CBC 2
#define CTR 3
uint8_t AES128key[16] = {0x2b,0x7e,0x15,0x16,0x28,0xae,0xd2,0xa6,
0xab,0xf7,0x15,0x88,0x09,0xcf,0x4f,0x3c}; /* key size 128 bytes */
uint8_t AES192key[24] = {0x8e,0x73,0xb0,0xf7,0xda,0x0e,0x64,0x52,
0xc8,0x10,0xf3,0x2b,0x80,0x90,0x79,0xe5,
0x62,0xf8,0xea,0xd2,0x52,0x2c,0x6b,0x7b}; /* key size 192 bytes */
uint8_t AES256key[32] = {0x60,0x3d,0xeb,0x10,0x15,0xca,0x71,0xbe,
0x2b,0x73,0xae,0xf0,0x85,0x7d,0x77,0x81,
0x1f,0x35,0x2c,0x07,0x3b,0x61,0x08,0xd7,
0x2d,0x98,0x10,0xa3,0x09,0x14,0xdf,0xf4}; /* key size 256 bytes */
uint8_t IV_1[16] = {0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,
0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f}; /* initialization vector */
uint8_t Plaintext[AES_TEXT_SIZE] =
{0x6b,0xc1,0xbe,0xe2,0x2e,0x40,0x9f,0x96,
0xe9,0x3d,0x7e,0x11,0x73,0x93,0x17,0x2a,
0xae,0x2d,0x8a,0x57,0x1e,0x03,0xac,0x9c,
0x9e,0xb7,0x6f,0xac,0x45,0xaf,0x8e,0x51,
0x30,0xc8,0x1c,0x46,0xa3,0x5c,0xe4,0x11,
0xe5,0xfb,0xc1,0x19,0x1a,0x0a,0x52,0xef,
0xf6,0x9f,0x24,0x45,0xdf,0x4f,0x9b,0x17,
0xad,0x2b,0x41,0x7b,0xe6,0x6c,0x37,0x10}; /* plaintext */
uint8_t Ciphertext[AES_TEXT_SIZE] =
{0x76,0x49,0xab,0xac,0x81,0x19,0xb2,0x46,
0xce,0xe9,0x8e,0x9b,0x12,0xe9,0x19,0x7d,
0x50,0x86,0xcb,0x9b,0x50,0x72,0x19,0xee,
0x95,0xdb,0x11,0x3a,0x91,0x76,0x78,0xb2,
0x73,0xbe,0xd6,0xb8,0xe3,0xc1,0x74,0x3b,
0x71,0x16,0xe6,0x9e,0x22,0x22,0x95,0x16,
0x3f,0xf1,0xca,0xa1,0x68,0x1f,0xac,0x09,
0x12,0x0e,0xca,0x30,0x75,0x86,0xe1,0xa7}; /* ciphertext */
uint8_t Encryptedtext[AES_TEXT_SIZE]; /* Encrypted text */
uint8_t Decryptedtext[AES_TEXT_SIZE]; /* Decrypted text */
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
#ifdef __GNUC__
/* With GCC/RAISONANCE, small printf (option LD Linker->Libraries->Small printf
set to 'Yes') calls __io_putchar() */
#define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
#else
#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
#endif /* __GNUC__ */
void USART_Config(void);
void Display_PlainData(uint32_t datalength);
void Display_EncryptedData(uint8_t mode,uint16_t keysize,uint32_t datalength);
void Display_DecryptedData(uint8_t mode,uint16_t keysize,uint32_t datalength);
char PressToContinue(void);
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f2xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f2xx.c file
*/
/* USARTx configured as follow:
- BaudRate = 115200 baud
- Word Length = 8 Bits
- One Stop Bit
- No parity
- Hardware flow control disabled (RTS and CTS signals)
- Receive and transmit enabled
*/
USART_Config();
/* Enable CRYP clock */
RCC_AHB2PeriphClockCmd(RCC_AHB2Periph_CRYP, ENABLE);
while(1)
{
/* Display Plain Data*/
Display_PlainData(AES_TEXT_SIZE);
/******************************************************************************/
/* AES mode ECB */
/******************************************************************************/
/*=====================================================
Encryption ECB mode
======================================================*/
PressToContinue();
/****************************************/
/* AES 128 **/
/****************************************/
/* Encrypt the plaintext message*/
CRYP_AES_ECB(MODE_ENCRYPT,AES128key,128,Plaintext,AES_TEXT_SIZE,Encryptedtext);
/* Display encrypted Data*/
Display_EncryptedData(ECB,128,AES_TEXT_SIZE);
/****************************************/
/* AES 192 **/
/****************************************/
/* Encrypt the plaintext message*/
CRYP_AES_ECB(MODE_ENCRYPT,AES192key,192,Plaintext,AES_TEXT_SIZE,Encryptedtext);
/* Display encrypted Data*/
Display_EncryptedData(ECB,192,AES_TEXT_SIZE);
/****************************************/
/* AES 256 **/
/****************************************/
/* Encrypt the plaintext message*/
CRYP_AES_ECB(MODE_ENCRYPT,AES256key,256,Plaintext,AES_TEXT_SIZE,Encryptedtext);
/* Display encrypted Data*/
Display_EncryptedData(ECB, 256,AES_TEXT_SIZE);
/*=====================================================
Decryption in ECB mode
======================================================*/
PressToContinue();
/****************************************/
/* AES 128 **/
/****************************************/
/* Decrypt the plaintext message */
CRYP_AES_ECB(MODE_DECRYPT,AES128key,128,Ciphertext,AES_TEXT_SIZE,Decryptedtext);
/* Display decrypted data*/
Display_DecryptedData(ECB,128,AES_TEXT_SIZE);
/****************************************/
/* AES 192 **/
/****************************************/
/* Decrypt the plaintext message */
CRYP_AES_ECB(MODE_DECRYPT,AES192key, 192,Ciphertext, AES_TEXT_SIZE,Decryptedtext);
/* Display decrypted data*/
Display_DecryptedData(ECB, 192,AES_TEXT_SIZE);
/****************************************/
/* AES 256 **/
/****************************************/
/* Decrypt the plaintext message */
CRYP_AES_ECB(MODE_DECRYPT,AES256key, 256,Ciphertext, AES_TEXT_SIZE,Decryptedtext);
/* Display decrypted data*/
Display_DecryptedData(ECB,256,AES_TEXT_SIZE);
/******************************************************************************/
/* AES mode CBC */
/******************************************************************************/
PressToContinue();
/*=====================================================
Encryption CBC mode
======================================================*/
/****************************************/
/* AES 128 **/
/****************************************/
/* Encrypt the plaintext message*/
CRYP_AES_CBC(MODE_ENCRYPT,IV_1,AES128key,128,Plaintext,AES_TEXT_SIZE,Encryptedtext);
/* Display encrypted Data*/
Display_EncryptedData(CBC,128,AES_TEXT_SIZE);
/****************************************/
/* AES 192 **/
/****************************************/
/* Encrypt the plaintext message*/
CRYP_AES_CBC(MODE_ENCRYPT,IV_1,AES192key,192,Plaintext,AES_TEXT_SIZE,Encryptedtext);
/* Display encrypted Data*/
Display_EncryptedData(CBC,192,AES_TEXT_SIZE);
/****************************************/
/* AES 256 **/
/****************************************/
/* Encrypt the plaintext message*/
CRYP_AES_CBC(MODE_ENCRYPT,IV_1,AES256key,256,Plaintext,AES_TEXT_SIZE,Encryptedtext);
/* Display encrypted Data*/
Display_EncryptedData(CBC, 256,AES_TEXT_SIZE);
/*=====================================================
Decryption in CBC mode
======================================================*/
PressToContinue();
/* Deinitializes the CRYP peripheral */
CRYP_DeInit();
/****************************************/
/* AES 128 **/
/****************************************/
/* Decrypt the plaintext message */
CRYP_AES_CBC(MODE_DECRYPT,IV_1,AES128key,128,Ciphertext,AES_TEXT_SIZE,Decryptedtext);
/* Display decrypted data*/
Display_DecryptedData(CBC,128,AES_TEXT_SIZE);
/****************************************/
/* AES 192 **/
/****************************************/
/* Deinitializes the CRYP peripheral */
CRYP_DeInit();
/* Decrypt the plaintext message */
CRYP_AES_CBC(MODE_DECRYPT,IV_1,AES192key, 192,Ciphertext, AES_TEXT_SIZE,Decryptedtext);
/* Display decrypted data*/
Display_DecryptedData(CBC, 192,AES_TEXT_SIZE);
/****************************************/
/* AES 256 **/
/****************************************/
/* Deinitializes the CRYP peripheral */
CRYP_DeInit();
/* Decrypt the plaintext message */
CRYP_AES_CBC(MODE_DECRYPT,IV_1,AES256key, 256,Ciphertext, AES_TEXT_SIZE,Decryptedtext);
/* Display decrypted data*/
Display_DecryptedData(CBC,256,AES_TEXT_SIZE);
/******************************************************************************/
/* AES mode CTR */
/******************************************************************************/
/*=====================================================
Encryption CTR mode
======================================================*/
PressToContinue();
/****************************************/
/* AES 128 **/
/****************************************/
/* Encrypt the plaintext message*/
CRYP_AES_CTR(MODE_ENCRYPT,IV_1,AES128key,128,Plaintext,AES_TEXT_SIZE,Encryptedtext);
/* Display encrypted Data*/
Display_EncryptedData(CTR,128, AES_TEXT_SIZE);
/****************************************/
/* AES 192 **/
/****************************************/
/* Encrypt the plaintext message*/
CRYP_AES_CTR(MODE_ENCRYPT,IV_1,AES192key,192,Plaintext,AES_TEXT_SIZE,Encryptedtext);
/* Display encrypted Data*/
Display_EncryptedData(CTR,192, AES_TEXT_SIZE);
/****************************************/
/* AES 256 **/
/****************************************/
/* Encrypt the plaintext message*/
CRYP_AES_CTR(MODE_ENCRYPT,IV_1,AES256key,256,Plaintext,AES_TEXT_SIZE,Encryptedtext);
/* Display encrypted Data*/
Display_EncryptedData(CTR, 256, AES_TEXT_SIZE);
/*=====================================================
Decryption in CTR mode
======================================================*/
PressToContinue();
/****************************************/
/* AES 128 **/
/****************************************/
/* Decrypt the plaintext message */
CRYP_AES_CTR(MODE_DECRYPT,IV_1,AES128key,128,Ciphertext,AES_TEXT_SIZE,Decryptedtext);
/* Display decrypted data*/
Display_DecryptedData(CTR, 128, AES_TEXT_SIZE);
/****************************************/
/* AES 192 **/
/****************************************/
/* Decrypt the plaintext message */
CRYP_AES_CTR(MODE_DECRYPT,IV_1,AES192key,192,Ciphertext,AES_TEXT_SIZE,Decryptedtext);
/* Display decrypted data*/
Display_DecryptedData(CTR, 192, AES_TEXT_SIZE);
/****************************************/
/* AES 256 **/
/****************************************/
/* Decrypt the plaintext message */
CRYP_AES_CTR(MODE_DECRYPT,IV_1,AES256key, 256,Ciphertext, AES_TEXT_SIZE,Decryptedtext);
/* Display decrypted data*/
Display_DecryptedData(CTR, 256, AES_TEXT_SIZE);
/******************************************************************************/
PressToContinue();
printf("\n\r Example restarted...\n ");
}
}
/**
* @brief Display Plain Data
* @param datalength: length of the data to display
* @retval None
*/
void Display_PlainData(uint32_t datalength)
{
uint32_t BufferCounter =0;
uint32_t count = 0;
printf("\n\r =============================================================\n\r");
printf(" ================= Crypt Using HW Crypto ====================\n\r");
printf(" ============================================================\n\r");
printf(" ---------------------------------------\n\r");
printf(" Plain Data :\n\r");
printf(" ---------------------------------------\n\r");
for(BufferCounter = 0; BufferCounter < datalength; BufferCounter++)
{
printf("[0x%02X]", Plaintext[BufferCounter]);
count++;
if(count == 16)
{
count = 0;
printf(" Block %d \n\r", BufferCounter/16);
}
}
}
/**
* @brief Display Encrypted Data
* @param mode: chaining mode
* @param keysize: AES key size used
* @param datalength: length of the data to display
* @retval None
*/
void Display_EncryptedData(uint8_t mode, uint16_t keysize, uint32_t datalength)
{
uint32_t BufferCounter = 0;
uint32_t count = 0;
printf("\n\r =======================================\n\r");
printf(" Encrypted Data with AES %d Mode ",keysize );
if(mode == ECB)
{
printf("ECB\n\r");
}
else if(mode == CBC)
{
printf("CBC\n\r");
}
else /* if(mode == CTR)*/
{
printf("CTR\n\r");
}
printf(" ---------------------------------------\n\r");
for(BufferCounter = 0; BufferCounter < datalength; BufferCounter++)
{
printf("[0x%02X]", Encryptedtext[BufferCounter]);
count++;
if(count == 16)
{
count = 0;
printf(" Block %d \n\r", BufferCounter/16);
}
}
}
/**
* @brief Display Decrypted Data
* @param mode: chaining mode
* @param keysize: AES key size used
* @param datalength: length of the data to display
* @retval None
*/
void Display_DecryptedData(uint8_t mode, uint16_t keysize, uint32_t datalength)
{
uint32_t BufferCounter = 0;
uint32_t count = 0;
printf("\n\r =======================================\n\r");
printf(" Decrypted Data with AES %d Mode ",keysize );
if(mode == ECB)
{
printf("ECB\n\r");
}
else if(mode == CBC)
{
printf("CBC\n\r");
}
else /* if(mode == CTR)*/
{
printf("CTR\n\r");
}
printf(" ---------------------------------------\n\r");
for(BufferCounter = 0; BufferCounter < datalength; BufferCounter++)
{
printf("[0x%02X]", Decryptedtext[BufferCounter]);
count++;
if(count == 16)
{
count = 0;
printf(" Block %d \n\r", BufferCounter/16);
}
}
}
/**
* @brief USART configuration
* @param None
* @retval None
*/
void USART_Config(void)
{
USART_InitTypeDef USART_InitStructure;
USART_InitStructure.USART_BaudRate = 115200;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
STM_EVAL_COMInit(COM1, &USART_InitStructure);
}
/**
* @brief Wait till a character is received by the USART
* @param None
* @retval Keyboard pressed character
*/
char PressToContinue(void)
{
char c;
printf("\n\r Press any key to continue...\n\r ");
while (USART_GetFlagStatus(EVAL_COM1, USART_FLAG_RXNE) == RESET)
{
}
c = USART_ReceiveData(EVAL_COM1);
return(c);
}
/**
* @brief Retargets the C library printf function to the USART.
* @param None
* @retval None
*/
PUTCHAR_PROTOTYPE
{
/* Place your implementation of fputc here */
/* e.g. write a character to the USART */
USART_SendData(EVAL_COM1, (uint8_t) ch);
/* Loop until the end of transmission */
while (USART_GetFlagStatus(EVAL_COM1, USART_FLAG_TC) == RESET)
{}
return ch;
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,126 +0,0 @@
/**
@page AES_modes Encrypt and Decrypt data using AES Algo in All modes and all key sizes
@verbatim
******************** (C) COPYRIGHT 2012 STMicroelectronics *******************
* @file CRYP/AES_modes/readme.txt
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Description of the CRYP AES Algorithm in all modes and all key sizes
Example
******************************************************************************
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
@endverbatim
@par Example Description
This example provides a short description of how to use the CRYPTO peripheral to
encrypt and decrypt data using AES in all modes (ECB, CBC, CTR) and all key sizes
(128, 192, 256) Algorithm.
For this example, a firmware is used to interface with the Crypto peripheral
in polling mode.
This example behaves as follows:
1. ECB mode :
- AES128 ECB Encryption
- AES192 ECB Encryption
- AES256 ECB Encryption
- AES128 ECB Decryption
- AES192 ECB Decryption
- AES256 ECB Decryption
2. CBC mode :
- AES128 CBC Encryption
- AES192 CBC Encryption
- AES256 CBC Encryption
- AES128 CBC Decryption
- AES192 CBC Decryption
- AES256 CBC Decryption
3. CTR mode :
- AES128 CTR Encryption
- AES192 CTR Encryption
- AES256 CTR Encryption
- AES128 CTR Decryption
- AES192 CTR Decryption
- AES256 CTR Decryption
The Plain data, encrypted data and decrypted data can be displayed on a PC
HyperTerminal using the USART (CN16).
The USARTx is configured as follow:
- BaudRate = 115200 baud
- Word Length = 8 Bits
- One Stop Bit
- No parity
- Hardware flow control disabled (RTS and CTS signals)
- Receive and transmit enabled
@par Directory contents
- CRYP/AES_modes/system_stm32f2xx.c STM32F2xx system clock configuration file
- CRYP/AES_modes/stm32f2xx_conf.h Library Configuration file
- CRYP/AES_modes/stm32f2xx_it.h Interrupt handlers header file
- CRYP/AES_modes/stm32f2xx_it.c Interrupt handlers
- CRYP/AES_modes/main.c Main program
@note The "system_stm32f2xx.c" is generated by an automatic clock configuration
tool and can be easily customized to your own configuration.
To select different clock setup, use the "STM32F2xx_Clock_Configuration_V1.0.0.xls"
provided with the AN3362 package available on <a href="http://www.st.com/internet/mcu/family/141.jsp"> ST Microcontrollers </a>
@par Hardware and Software environment
- This example runs only on STM32F21x Devices (Cryptographic acceleration not
embedded in STM32F20x Devices).
- This example has been tested with STM322xG-EVAL RevB and can be easily tailored
to any other development board.
- STM322xG-EVAL Set-up
- Connect a null-modem female/female RS232 cable between the DB9 connector
CN16 (USART3) and PC serial port.
@note Make sure that jumper JP22 is in position 1-2
- Hyperterminal configuration:
- Word Length = 8 Bits
- One Stop Bit
- No parity
- BaudRate = 115200 baud
- flow control: None
@par How to use it ?
In order to make the program work, you must do the following :
- Copy all source files from this example folder to the template folder under
Project\STM32F2xx_StdPeriph_Template
- Open your preferred toolchain
- Rebuild all files and load your image into target memory
- Run the example
* <h3><center>&copy; COPYRIGHT STMicroelectronics</center></h3>
*/
@@ -1,94 +0,0 @@
/**
******************************************************************************
* @file CRYP/AES_modes/stm32f2xx_conf.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Library configuration file.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_CONF_H
#define __STM32F2xx_CONF_H
/* Includes ------------------------------------------------------------------*/
/* Uncomment the line below to enable peripheral header file inclusion */
#include "stm32f2xx_adc.h"
#include "stm32f2xx_can.h"
#include "stm32f2xx_crc.h"
#include "stm32f2xx_cryp.h"
#include "stm32f2xx_dac.h"
#include "stm32f2xx_dbgmcu.h"
#include "stm32f2xx_dcmi.h"
#include "stm32f2xx_dma.h"
#include "stm32f2xx_exti.h"
#include "stm32f2xx_flash.h"
#include "stm32f2xx_fsmc.h"
#include "stm32f2xx_hash.h"
#include "stm32f2xx_gpio.h"
#include "stm32f2xx_i2c.h"
#include "stm32f2xx_iwdg.h"
#include "stm32f2xx_pwr.h"
#include "stm32f2xx_rcc.h"
#include "stm32f2xx_rng.h"
#include "stm32f2xx_rtc.h"
#include "stm32f2xx_sdio.h"
#include "stm32f2xx_spi.h"
#include "stm32f2xx_syscfg.h"
#include "stm32f2xx_tim.h"
#include "stm32f2xx_usart.h"
#include "stm32f2xx_wwdg.h"
#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* If an external clock source is used, then the value of the following define
should be set to the value of the external clock source, else, if no external
clock is used, keep this define commented */
/*#define I2S_EXTERNAL_CLOCK_VAL 12288000 */ /* Value of the external clock in Hz */
/* Uncomment the line below to expanse the "assert_param" macro in the
Standard Peripheral Library drivers code */
/* #define USE_FULL_ASSERT 1 */
/* Exported macro ------------------------------------------------------------*/
#ifdef USE_FULL_ASSERT
/**
* @brief The assert_param macro is used for function's parameters check.
* @param expr: If expr is false, it calls assert_failed function
* which reports the name of the source file and the source
* line number of the call that failed.
* If expr is true, it returns no value.
* @retval None
*/
#define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__))
/* Exported functions ------------------------------------------------------- */
void assert_failed(uint8_t* file, uint32_t line);
#else
#define assert_param(expr) ((void)0)
#endif /* USE_FULL_ASSERT */
#endif /* __STM32F2xx_CONF_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,173 +0,0 @@
/**
******************************************************************************
* @file CRYP/AES_modes/stm32f2xx_it.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main Interrupt Service Routines.
* This file provides template for all exceptions handler and
* peripherals interrupt service routine.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx_it.h"
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup AES_modes
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/******************************************************************************/
/* Cortex-M3 Processor Exceptions Handlers */
/******************************************************************************/
/**
* @brief This function handles NMI exception.
* @param None
* @retval None
*/
void NMI_Handler(void)
{
}
/**
* @brief This function handles Hard Fault exception.
* @param None
* @retval None
*/
void HardFault_Handler(void)
{
/* Go to infinite loop when Hard Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Memory Manage exception.
* @param None
* @retval None
*/
void MemManage_Handler(void)
{
/* Go to infinite loop when Memory Manage exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Bus Fault exception.
* @param None
* @retval None
*/
void BusFault_Handler(void)
{
/* Go to infinite loop when Bus Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Usage Fault exception.
* @param None
* @retval None
*/
void UsageFault_Handler(void)
{
/* Go to infinite loop when Usage Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles SVCall exception.
* @param None
* @retval None
*/
void SVC_Handler(void)
{
}
/**
* @brief This function handles Debug Monitor exception.
* @param None
* @retval None
*/
void DebugMon_Handler(void)
{
}
/**
* @brief This function handles PendSVC exception.
* @param None
* @retval None
*/
void PendSV_Handler(void)
{
}
/**
* @brief This function handles SysTick Handler.
* @param None
* @retval None
*/
void SysTick_Handler(void)
{
}
/******************************************************************************/
/* STM32F2xx Peripherals Interrupt Handlers */
/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */
/* available peripheral interrupt handler's name please refer to the startup */
/* file (startup_stm32f2xx.s). */
/******************************************************************************/
/**
* @brief This function handles PPP interrupt request.
* @param None
* @retval None
*/
/*void PPP_IRQHandler(void)
{
}*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,60 +0,0 @@
/**
******************************************************************************
* @file CRYP/AES_modes/stm32f2xx_it.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief This file contains the headers of the interrupt handlers.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_IT_H
#define __STM32F2xx_IT_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
void NMI_Handler(void);
void HardFault_Handler(void);
void MemManage_Handler(void);
void BusFault_Handler(void);
void UsageFault_Handler(void);
void SVC_Handler(void);
void DebugMon_Handler(void);
void PendSV_Handler(void);
void SysTick_Handler(void);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F2xx_IT_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,542 +0,0 @@
/**
******************************************************************************
* @file system_stm32f2xx.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File.
* This file contains the system clock configuration for STM32F2xx devices,
* and is generated by the clock configuration tool
* "STM32f2xx_Clock_Configuration_V1.0.0.xls"
*
* 1. This file provides two functions and one global variable to be called from
* user application:
* - SystemInit(): Setups the system clock (System clock source, PLL Multiplier
* and Divider factors, AHB/APBx prescalers and Flash settings),
* depending on the configuration made in the clock xls tool.
* This function is called at startup just after reset and
* before branch to main program. This call is made inside
* the "startup_stm32f2xx.s" file.
*
* - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
* by the user application to setup the SysTick
* timer or configure other parameters.
*
* - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
* be called whenever the core clock is changed
* during program execution.
*
* 2. After each device reset the HSI (16 MHz) is used as system clock source.
* Then SystemInit() function is called, in "startup_stm32f2xx.s" file, to
* configure the system clock before to branch to main program.
*
* 3. If the system clock source selected by user fails to startup, the SystemInit()
* function will do nothing and HSI still used as system clock source. User can
* add some code to deal with this issue inside the SetSysClock() function.
*
* 4. The default value of HSE crystal is set to 25MHz, refer to "HSE_VALUE" define
* in "stm32f2xx.h" file. When HSE is used as system clock source, directly or
* through PLL, and you are using different crystal you have to adapt the HSE
* value to your own configuration.
*
* 5. This file configures the system clock as follows:
*=============================================================================
*=============================================================================
* Supported STM32F2xx device revision | Rev B and Y
*-----------------------------------------------------------------------------
* System Clock source | PLL (HSE)
*-----------------------------------------------------------------------------
* SYSCLK(Hz) | 120000000
*-----------------------------------------------------------------------------
* HCLK(Hz) | 120000000
*-----------------------------------------------------------------------------
* AHB Prescaler | 1
*-----------------------------------------------------------------------------
* APB1 Prescaler | 4
*-----------------------------------------------------------------------------
* APB2 Prescaler | 2
*-----------------------------------------------------------------------------
* HSE Frequency(Hz) | 25000000
*-----------------------------------------------------------------------------
* PLL_M | 25
*-----------------------------------------------------------------------------
* PLL_N | 240
*-----------------------------------------------------------------------------
* PLL_P | 2
*-----------------------------------------------------------------------------
* PLL_Q | 5
*-----------------------------------------------------------------------------
* PLLI2S_N | NA
*-----------------------------------------------------------------------------
* PLLI2S_R | NA
*-----------------------------------------------------------------------------
* I2S input clock | NA
*-----------------------------------------------------------------------------
* VDD(V) | 3.3
*-----------------------------------------------------------------------------
* Flash Latency(WS) | 3
*-----------------------------------------------------------------------------
* Prefetch Buffer | ON
*-----------------------------------------------------------------------------
* Instruction cache | ON
*-----------------------------------------------------------------------------
* Data cache | ON
*-----------------------------------------------------------------------------
* Require 48MHz for USB OTG FS, | Enabled
* SDIO and RNG clock |
*-----------------------------------------------------------------------------
*=============================================================================
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/** @addtogroup CMSIS
* @{
*/
/** @addtogroup stm32f2xx_system
* @{
*/
/** @addtogroup STM32F2xx_System_Private_Includes
* @{
*/
#include "stm32f2xx.h"
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Defines
* @{
*/
/*!< Uncomment the following line if you need to use external SRAM mounted
on STM322xG_EVAL board as data memory */
/* #define DATA_IN_ExtSRAM */
/*!< Uncomment the following line if you need to relocate your vector Table in
Internal SRAM. */
/* #define VECT_TAB_SRAM */
#define VECT_TAB_OFFSET 0x00 /*!< Vector Table base offset field.
This value must be a multiple of 0x200. */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N */
#define PLL_M 25
#define PLL_N 240
/* SYSCLK = PLL_VCO / PLL_P */
#define PLL_P 2
/* USB OTG FS, SDIO and RNG Clock = PLL_VCO / PLLQ */
#define PLL_Q 5
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Macros
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Variables
* @{
*/
uint32_t SystemCoreClock = 120000000;
__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_FunctionPrototypes
* @{
*/
static void SetSysClock(void);
#ifdef DATA_IN_ExtSRAM
static void SystemInit_ExtMemCtl(void);
#endif /* DATA_IN_ExtSRAM */
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Functions
* @{
*/
/**
* @brief Setup the microcontroller system
* Initialize the Embedded Flash Interface, the PLL and update the
* SystemFrequency variable.
* @param None
* @retval None
*/
void SystemInit(void)
{
/* Reset the RCC clock configuration to the default reset state ------------*/
/* Set HSION bit */
RCC->CR |= (uint32_t)0x00000001;
/* Reset CFGR register */
RCC->CFGR = 0x00000000;
/* Reset HSEON, CSSON and PLLON bits */
RCC->CR &= (uint32_t)0xFEF6FFFF;
/* Reset PLLCFGR register */
RCC->PLLCFGR = 0x24003010;
/* Reset HSEBYP bit */
RCC->CR &= (uint32_t)0xFFFBFFFF;
/* Disable all interrupts */
RCC->CIR = 0x00000000;
#ifdef DATA_IN_ExtSRAM
SystemInit_ExtMemCtl();
#endif /* DATA_IN_ExtSRAM */
/* Configure the System clock source, PLL Multiplier and Divider factors,
AHB/APBx prescalers and Flash settings ----------------------------------*/
SetSysClock();
/* Configure the Vector Table location add offset address ------------------*/
#ifdef VECT_TAB_SRAM
SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */
#else
SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */
#endif
}
/**
* @brief Update SystemCoreClock variable according to Clock Register Values.
* The SystemCoreClock variable contains the core clock (HCLK), it can
* be used by the user application to setup the SysTick timer or configure
* other parameters.
*
* @note Each time the core clock (HCLK) changes, this function must be called
* to update SystemCoreClock variable value. Otherwise, any configuration
* based on this variable will be incorrect.
*
* @note - The system frequency computed by this function is not the real
* frequency in the chip. It is calculated based on the predefined
* constant and the selected clock source:
*
* - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*)
*
* - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**)
*
* - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**)
* or HSI_VALUE(*) multiplied/divided by the PLL factors.
*
* (*) HSI_VALUE is a constant defined in stm32f2xx.h file (default value
* 16 MHz) but the real value may vary depending on the variations
* in voltage and temperature.
*
* (**) HSE_VALUE is a constant defined in stm32f2xx.h file (default value
* 25 MHz), user has to ensure that HSE_VALUE is same as the real
* frequency of the crystal used. Otherwise, this function may
* have wrong result.
*
* - The result of this function could be not correct when using fractional
* value for HSE crystal.
*
* @param None
* @retval None
*/
void SystemCoreClockUpdate(void)
{
uint32_t tmp = 0, pllvco = 0, pllp = 2, pllsource = 0, pllm = 2;
/* Get SYSCLK source -------------------------------------------------------*/
tmp = RCC->CFGR & RCC_CFGR_SWS;
switch (tmp)
{
case 0x00: /* HSI used as system clock source */
SystemCoreClock = HSI_VALUE;
break;
case 0x04: /* HSE used as system clock source */
SystemCoreClock = HSE_VALUE;
break;
case 0x08: /* PLL used as system clock source */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N
SYSCLK = PLL_VCO / PLL_P
*/
pllsource = (RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) >> 22;
pllm = RCC->PLLCFGR & RCC_PLLCFGR_PLLM;
if (pllsource != 0)
{
/* HSE used as PLL clock source */
pllvco = (HSE_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
}
else
{
/* HSI used as PLL clock source */
pllvco = (HSI_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
}
pllp = (((RCC->PLLCFGR & RCC_PLLCFGR_PLLP) >>16) + 1 ) *2;
SystemCoreClock = pllvco/pllp;
break;
default:
SystemCoreClock = HSI_VALUE;
break;
}
/* Compute HCLK frequency --------------------------------------------------*/
/* Get HCLK prescaler */
tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)];
/* HCLK frequency */
SystemCoreClock >>= tmp;
}
/**
* @brief Configures the System clock source, PLL Multiplier and Divider factors,
* AHB/APBx prescalers and Flash settings
* @Note This function should be called only once the RCC clock configuration
* is reset to the default reset state (done in SystemInit() function).
* @param None
* @retval None
*/
static void SetSysClock(void)
{
/******************************************************************************/
/* PLL (clocked by HSE) used as System clock source */
/******************************************************************************/
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
/* Enable HSE */
RCC->CR |= ((uint32_t)RCC_CR_HSEON);
/* Wait till HSE is ready and if Time out is reached exit */
do
{
HSEStatus = RCC->CR & RCC_CR_HSERDY;
StartUpCounter++;
} while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
if ((RCC->CR & RCC_CR_HSERDY) != RESET)
{
HSEStatus = (uint32_t)0x01;
}
else
{
HSEStatus = (uint32_t)0x00;
}
if (HSEStatus == (uint32_t)0x01)
{
/* HCLK = SYSCLK / 1*/
RCC->CFGR |= RCC_CFGR_HPRE_DIV1;
/* PCLK2 = HCLK / 2*/
RCC->CFGR |= RCC_CFGR_PPRE2_DIV2;
/* PCLK1 = HCLK / 4*/
RCC->CFGR |= RCC_CFGR_PPRE1_DIV4;
/* Configure the main PLL */
RCC->PLLCFGR = PLL_M | (PLL_N << 6) | (((PLL_P >> 1) -1) << 16) |
(RCC_PLLCFGR_PLLSRC_HSE) | (PLL_Q << 24);
/* Enable the main PLL */
RCC->CR |= RCC_CR_PLLON;
/* Wait till the main PLL is ready */
while((RCC->CR & RCC_CR_PLLRDY) == 0)
{
}
/* Configure Flash prefetch, Instruction cache, Data cache and wait state */
FLASH->ACR = FLASH_ACR_PRFTEN | FLASH_ACR_ICEN | FLASH_ACR_DCEN | FLASH_ACR_LATENCY_3WS;
/* Select the main PLL as system clock source */
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW));
RCC->CFGR |= RCC_CFGR_SW_PLL;
/* Wait till the main PLL is used as system clock source */
while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS ) != RCC_CFGR_SWS_PLL);
{
}
}
else
{ /* If HSE fails to start-up, the application will have wrong clock
configuration. User can add here some code to deal with this error */
}
}
/**
* @brief Setup the external memory controller. Called in startup_stm32f2xx.s
* before jump to __main
* @param None
* @retval None
*/
#ifdef DATA_IN_ExtSRAM
/**
* @brief Setup the external memory controller.
* Called in startup_stm32f2xx.s before jump to main.
* This function configures the external SRAM mounted on STM322xG_EVAL board
* This SRAM will be used as program data memory (including heap and stack).
* @param None
* @retval None
*/
void SystemInit_ExtMemCtl(void)
{
/*-- GPIOs Configuration -----------------------------------------------------*/
/*
+-------------------+--------------------+------------------+------------------+
+ SRAM pins assignment +
+-------------------+--------------------+------------------+------------------+
| PD0 <-> FSMC_D2 | PE0 <-> FSMC_NBL0 | PF0 <-> FSMC_A0 | PG0 <-> FSMC_A10 |
| PD1 <-> FSMC_D3 | PE1 <-> FSMC_NBL1 | PF1 <-> FSMC_A1 | PG1 <-> FSMC_A11 |
| PD4 <-> FSMC_NOE | PE7 <-> FSMC_D4 | PF2 <-> FSMC_A2 | PG2 <-> FSMC_A12 |
| PD5 <-> FSMC_NWE | PE8 <-> FSMC_D5 | PF3 <-> FSMC_A3 | PG3 <-> FSMC_A13 |
| PD8 <-> FSMC_D13 | PE9 <-> FSMC_D6 | PF4 <-> FSMC_A4 | PG4 <-> FSMC_A14 |
| PD9 <-> FSMC_D14 | PE10 <-> FSMC_D7 | PF5 <-> FSMC_A5 | PG5 <-> FSMC_A15 |
| PD10 <-> FSMC_D15 | PE11 <-> FSMC_D8 | PF12 <-> FSMC_A6 | PG9 <-> FSMC_NE2 |
| PD11 <-> FSMC_A16 | PE12 <-> FSMC_D9 | PF13 <-> FSMC_A7 |------------------+
| PD12 <-> FSMC_A17 | PE13 <-> FSMC_D10 | PF14 <-> FSMC_A8 |
| PD14 <-> FSMC_D0 | PE14 <-> FSMC_D11 | PF15 <-> FSMC_A9 |
| PD15 <-> FSMC_D1 | PE15 <-> FSMC_D12 |------------------+
+-------------------+--------------------+
*/
/* Enable GPIOD, GPIOE, GPIOF and GPIOG interface clock */
RCC->AHB1ENR = 0x00000078;
/* Connect PDx pins to FSMC Alternate function */
GPIOD->AFR[0] = 0x00cc00cc;
GPIOD->AFR[1] = 0xcc0ccccc;
/* Configure PDx pins in Alternate function mode */
GPIOD->MODER = 0xa2aa0a0a;
/* Configure PDx pins speed to 100 MHz */
GPIOD->OSPEEDR = 0xf3ff0f0f;
/* Configure PDx pins Output type to push-pull */
GPIOD->OTYPER = 0x00000000;
/* No pull-up, pull-down for PDx pins */
GPIOD->PUPDR = 0x00000000;
/* Connect PEx pins to FSMC Alternate function */
GPIOE->AFR[0] = 0xc00000cc;
GPIOE->AFR[1] = 0xcccccccc;
/* Configure PEx pins in Alternate function mode */
GPIOE->MODER = 0xaaaa800a;
/* Configure PEx pins speed to 100 MHz */
GPIOE->OSPEEDR = 0xffffc00f;
/* Configure PEx pins Output type to push-pull */
GPIOE->OTYPER = 0x00000000;
/* No pull-up, pull-down for PEx pins */
GPIOE->PUPDR = 0x00000000;
/* Connect PFx pins to FSMC Alternate function */
GPIOF->AFR[0] = 0x00cccccc;
GPIOF->AFR[1] = 0xcccc0000;
/* Configure PFx pins in Alternate function mode */
GPIOF->MODER = 0xaa000aaa;
/* Configure PFx pins speed to 100 MHz */
GPIOF->OSPEEDR = 0xff000fff;
/* Configure PFx pins Output type to push-pull */
GPIOF->OTYPER = 0x00000000;
/* No pull-up, pull-down for PFx pins */
GPIOF->PUPDR = 0x00000000;
/* Connect PGx pins to FSMC Alternate function */
GPIOG->AFR[0] = 0x00cccccc;
GPIOG->AFR[1] = 0x000000c0;
/* Configure PGx pins in Alternate function mode */
GPIOG->MODER = 0x00080aaa;
/* Configure PGx pins speed to 100 MHz */
GPIOG->OSPEEDR = 0x000c0fff;
/* Configure PGx pins Output type to push-pull */
GPIOG->OTYPER = 0x00000000;
/* No pull-up, pull-down for PGx pins */
GPIOG->PUPDR = 0x00000000;
/*-- FSMC Configuration ------------------------------------------------------*/
/* Enable the FSMC interface clock */
RCC->AHB3ENR = 0x00000001;
/* Configure and enable Bank1_SRAM2 */
FSMC_Bank1->BTCR[2] = 0x00001015;
FSMC_Bank1->BTCR[3] = 0x00010400;
FSMC_Bank1E->BWTR[2] = 0x0fffffff;
/*
Bank1_SRAM2 is configured as follow:
p.FSMC_AddressSetupTime = 0;
p.FSMC_AddressHoldTime = 0;
p.FSMC_DataSetupTime = 4;
p.FSMC_BusTurnAroundDuration = 1;
p.FSMC_CLKDivision = 0;
p.FSMC_DataLatency = 0;
p.FSMC_AccessMode = FSMC_AccessMode_A;
FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM2;
FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;
FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_PSRAM;
FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b;
FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_AsynchronousWait = FSMC_AsynchronousWait_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState;
FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;
FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;
FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p;
FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;
*/
}
#endif /* DATA_IN_ExtSRAM */
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,48 +0,0 @@
=============================================================
================= Crypt Using HW Crypto ====================
=============================================================
---------------------------------------
Plain Data :
---------------------------------------
[0x31][0x32][0x33][0x34][0x35][0x36][0x37][0x38] Block 0
=======================================
Encrypted Data DES Mode ECB
---------------------------------------
[0xAF][0xE6][0x49][0x61][0xCC][0x4F][0x7C][0x13] Block 0
=======================================
Decrypted Data DES Mode ECB
---------------------------------------
[0x31][0x32][0x33][0x34][0x35][0x36][0x37][0x38] Block 0
=======================================
Encrypted Data DES Mode CBC
---------------------------------------
[0xD4][0xE3][0x6B][0x07][0x60][0xBD][0x60][0x15] Block 0
=======================================
Decrypted Data DES Mode CBC
---------------------------------------
[0x31][0x32][0x33][0x34][0x35][0x36][0x37][0x38] Block 0
=======================================
Encrypted Data TDES Mode ECB
---------------------------------------
[0x50][0x08][0x77][0xCB][0x7B][0x95][0xBC][0x0C] Block 0
=======================================
Decrypted Data TDES Mode ECB
---------------------------------------
[0x31][0x32][0x33][0x34][0x35][0x36][0x37][0x38] Block 0
=======================================
Encrypted Data TDES Mode CBC
---------------------------------------
[0x06][0x63][0x86][0xC3][0x3E][0xCB][0x14][0xDF] Block 0
=======================================
Decrypted Data TDES Mode CBC
---------------------------------------
[0x31][0x32][0x33][0x34][0x35][0x36][0x37][0x38] Block 0
@@ -1,392 +0,0 @@
/**
******************************************************************************
* @file CRYP/DES_TDES_modes/main.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main program body
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
#include "stm322xg_eval.h"
#include "stdio.h"
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup DES_TDES_modes
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define PLAIN_TEXT_SIZE 8
#define ECB 1
#define CBC 2
#define DES ' '
#define TDES 'T'
/* key size 64 bytes */
uint8_t DESkey[8] = {0x2b,0x7e,0x15,0x16,0x28,0xae,0xd2,0xa6};
/* key : 192 bits */
uint8_t TDESkey[24] = {0x01,0x23,0x45,0x67,0x89,0xAB,0xCD,0xEF, /* key 1 */
0xFE,0xDC,0xBA,0x98,0x76,0x54,0x32,0x10, /* key 2 */
0x89,0xAB,0xCD,0xEF,0x01,0x23,0x45,0x67}; /* key 3 */
uint8_t Plaintext[PLAIN_TEXT_SIZE] = {0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38}; /* Plaintext */
/* initialization vector */
uint8_t IV_1[8] = {0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07};
uint8_t Encryptedtext[PLAIN_TEXT_SIZE]; /* Encrypted text */
uint8_t Decryptedtext[PLAIN_TEXT_SIZE]; /* Decrypted text */
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
#ifdef __GNUC__
/* With GCC/RAISONANCE, small printf (option LD Linker->Libraries->Small printf
set to 'Yes') calls __io_putchar() */
#define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
#else
#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
#endif /* __GNUC__ */
void USART_Config(void);
void Display_PlainData(uint32_t datalength);
void Display_EncryptedData(uint8_t Algo, uint8_t mode,uint32_t datalength);
void Display_DecryptedData(uint8_t Algo, uint8_t mode,uint32_t datalength);
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f2xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f2xx.c file
*/
/* USARTx configured as follow:
- BaudRate = 115200 baud
- Word Length = 8 Bits
- One Stop Bit
- No parity
- Hardware flow control disabled (RTS and CTS signals)
- Receive and transmit enabled
*/
USART_Config();
/* Display Plain Data*/
Display_PlainData(PLAIN_TEXT_SIZE);
/* Enable CRYP clock */
RCC_AHB2PeriphClockCmd(RCC_AHB2Periph_CRYP, ENABLE);
/******************************************************************************/
/* DES mode ECB */
/******************************************************************************/
/*=====================================================
Encryption ECB mode
======================================================*/
/* Encrypt the plaintext message */
CRYP_DES_ECB(MODE_ENCRYPT,DESkey,Plaintext,PLAIN_TEXT_SIZE,Encryptedtext);
/* Display encrypted Data*/
Display_EncryptedData(DES,ECB,PLAIN_TEXT_SIZE);
/*=====================================================
Decryption in ECB mode
======================================================*/
/* Decrypt the plaintext message */
CRYP_DES_ECB(MODE_DECRYPT,DESkey,Encryptedtext,PLAIN_TEXT_SIZE,Decryptedtext);
/* Display decrypted data*/
Display_DecryptedData(DES,ECB,PLAIN_TEXT_SIZE);
/******************************************************************************/
/* DES mode CBC */
/******************************************************************************/
/*=====================================================
Encryption CBC mode
======================================================*/
/* Encrypt the plaintext message*/
CRYP_DES_CBC(MODE_ENCRYPT,DESkey,IV_1,Plaintext,PLAIN_TEXT_SIZE,Encryptedtext);
/* Display encrypted Data*/
Display_EncryptedData(DES,CBC,PLAIN_TEXT_SIZE);
/*=====================================================
Decryption in CBC mode
======================================================*/
/* Decrypt the plaintext message */
CRYP_DES_CBC(MODE_DECRYPT,DESkey,IV_1,Encryptedtext,PLAIN_TEXT_SIZE,Decryptedtext);
/* Display decrypted data*/
Display_DecryptedData(DES,CBC,PLAIN_TEXT_SIZE);
/******************************************************************************/
/* TDES mode ECB */
/******************************************************************************/
/*=====================================================
Encryption ECB mode
======================================================*/
/* Encrypt the plaintext message*/
CRYP_TDES_ECB(MODE_ENCRYPT,TDESkey,Plaintext,PLAIN_TEXT_SIZE,Encryptedtext);
/* Display encrypted Data*/
Display_EncryptedData(TDES,ECB,PLAIN_TEXT_SIZE);
/*=====================================================
Decryption in ECB mode
======================================================*/
/* Decrypt the plaintext message */
CRYP_TDES_ECB(MODE_DECRYPT,TDESkey,Encryptedtext,PLAIN_TEXT_SIZE,Decryptedtext);
/* Display decrypted data*/
Display_DecryptedData(TDES,ECB,PLAIN_TEXT_SIZE);
/******************************************************************************/
/* TDES mode CBC */
/******************************************************************************/
/*=====================================================
Encryption CBC mode
======================================================*/
/* Encrypt the plaintext message*/
CRYP_TDES_CBC(MODE_ENCRYPT,TDESkey,IV_1,Plaintext,PLAIN_TEXT_SIZE,Encryptedtext);
/* Display encrypted Data*/
Display_EncryptedData(TDES,CBC,PLAIN_TEXT_SIZE);
/*=====================================================
Decryption in CBC mode
======================================================*/
/* Decrypt the plaintext message */
CRYP_TDES_CBC(MODE_DECRYPT,TDESkey,IV_1,Encryptedtext,PLAIN_TEXT_SIZE,Decryptedtext);
/* Display decrypted data*/
Display_DecryptedData(TDES,CBC,PLAIN_TEXT_SIZE);
/******************************************************************************/
while(1);
}
/**
* @brief Display Plain Data
* @param datalength: length of the data to display
* @retval None
*/
void Display_PlainData(uint32_t datalength)
{
uint32_t BufferCounter = 0;
uint32_t count = 0;
printf("\n\r =============================================================\n\r");
printf(" ================= Crypt Using HW Crypto ====================\n\r");
printf(" =============================================================\n\r");
printf(" ---------------------------------------\n\r");
printf(" Plain Data :\n\r");
printf(" ---------------------------------------\n\r");
for(BufferCounter = 0; BufferCounter < datalength; BufferCounter++)
{
printf("[0x%02X]", Plaintext[BufferCounter]);
count++;
if(count == 8)
{
count = 0;
printf(" Block %d \n\r", BufferCounter/8);
}
}
}
/**
* @brief Display Encrypted Data
* @param Algo: Algorithm used (DES or TDES)
* @param mode: chaining mode
* @param datalength: length of the data to display
* @retval None
*/
void Display_EncryptedData(uint8_t Algo, uint8_t mode, uint32_t datalength)
{
uint32_t BufferCounter = 0;
uint32_t count = 0;
printf("\n\r =======================================\n\r");
printf(" Encrypted Data %cDES Mode ",Algo);
if(mode == ECB)
{
printf("ECB\n\r");
}
else/* if(mode == CBC)*/
{
printf("CBC\n\r");
}
printf(" ---------------------------------------\n\r");
for(BufferCounter = 0; BufferCounter < datalength; BufferCounter++)
{
printf("[0x%02X]", Encryptedtext[BufferCounter]);
count++;
if(count == 8)
{
count = 0;
printf(" Block %d \n\r", BufferCounter/8);
}
}
}
/**
* @brief Display Decrypted Data
* @param Algo: Algorithm used (DES or TDES)
* @param mode: chaining mode
* @param datalength: length of the data to display
* @retval None
*/
void Display_DecryptedData(uint8_t Algo, uint8_t mode, uint32_t datalength)
{
uint32_t BufferCounter = 0;
uint32_t count = 0;
printf("\n\r =======================================\n\r");
printf(" Decrypted Data %cDES Mode ",Algo);
if(mode == ECB)
{
printf("ECB\n\r");
}
else/* if(mode == CBC)*/
{
printf("CBC\n\r");
}
printf(" ---------------------------------------\n\r");
for(BufferCounter = 0; BufferCounter < datalength; BufferCounter++)
{
printf("[0x%02X]", Decryptedtext[BufferCounter]);
count++;
if(count == 8)
{
count = 0;
printf(" Block %d \n\r", BufferCounter/8);
}
}
}
/**
* @brief USART configuration
* @param None
* @retval None
*/
void USART_Config(void)
{
USART_InitTypeDef USART_InitStructure;
USART_InitStructure.USART_BaudRate = 115200;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
STM_EVAL_COMInit(COM1, &USART_InitStructure);
}
/**
* @brief Retargets the C library printf function to the USART.
* @param None
* @retval None
*/
PUTCHAR_PROTOTYPE
{
/* Place your implementation of fputc here */
/* e.g. write a character to the USART */
USART_SendData(EVAL_COM1, (uint8_t) ch);
/* Loop until the end of transmission */
while (USART_GetFlagStatus(EVAL_COM1, USART_FLAG_TC) == RESET)
{}
return ch;
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,107 +0,0 @@
/**
@page DES_TDES_modes Encrypt and Decrypt data using DES and TDES Algorithms in All modes
@verbatim
******************** (C) COPYRIGHT 2012 STMicroelectronics *******************
* @file CRYP/DES_TDES_modes/readme.txt
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Description of the CRYP DES and TDES Algorithm in all modes Example
******************************************************************************
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
@endverbatim
@par Example Description
This example provides a short description of how to use the CRYPTO peripheral to
encrypt and decrypt data using DES and TDES in all modes (ECB, CBC) Algorithm.
For this example, a firmware is used to interface with the Crypto peripheral
in polling mode.
This example is behaves as follow:
1. DES
- DES ECB Encryption
- DES ECB Decryption
- DES CBC Encryption
- DES CBC Decryption
2. TDES
- TDES ECB Encryption
- TDES ECB Decryption
- TDES CBC Encryption
- TDES CBC Decryption
The Plain data, encrypted data and decrypted data can be displayed on a PC
HyperTerminal using the USART (CN16).
The USARTx is configured as follow:
- BaudRate = 115200 baud
- Word Length = 8 Bits
- One Stop Bit
- No parity
- Hardware flow control disabled (RTS and CTS signals)
- Receive and transmit enabled
@par Directory contents
- CRYP/DES_TDES_modes/system_stm32f2xx.c STM32F2xx system clock configuration file
- CRYP/DES_TDES_modes/stm32f2xx_conf.h Library Configuration file
- CRYP/DES_TDES_modes/stm32f2xx_it.h Interrupt handlers header file
- CRYP/DES_TDES_modes/stm32f2xx_it.c Interrupt handlers
- CRYP/DES_TDES_modes/main.c Main program
@note The "system_stm32f2xx.c" is generated by an automatic clock configuration
tool and can be easily customized to your own configuration.
To select different clock setup, use the "STM32F2xx_Clock_Configuration_V1.0.0.xls"
provided with the AN3362 package available on <a href="http://www.st.com/internet/mcu/family/141.jsp"> ST Microcontrollers </a>
@par Hardware and Software environment
- This example runs only on STM32F21x Devices (Cryptographic acceleration not
embedded in STM32F20x Devices).
- This example has been tested with STM322xG-EVAL RevB and can be easily tailored
to any other development board.
- STM322xG-EVAL Set-up
- Connect a null-modem female/female RS232 cable between the DB9 connector
CN16 (USART3) and PC serial port.
@note Make sure that jumper JP22 is in position 1-2
- Hyperterminal configuration:
- Word Length = 8 Bits
- One Stop Bit
- No parity
- BaudRate = 115200 baud
- flow control: None
@par How to use it ?
In order to make the program work, you must do the following :
- Copy all source files from this example folder to the template folder under
Project\STM32F2xx_StdPeriph_Template
- Open your preferred toolchain
- Rebuild all files and load your image into target memory
- Run the example
* <h3><center>&copy; COPYRIGHT STMicroelectronics</center></h3>
*/
@@ -1,94 +0,0 @@
/**
******************************************************************************
* @file CRYP/DES_TDES_modes/stm32f2xx_conf.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Library configuration file.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_CONF_H
#define __STM32F2xx_CONF_H
/* Includes ------------------------------------------------------------------*/
/* Uncomment the line below to enable peripheral header file inclusion */
#include "stm32f2xx_adc.h"
#include "stm32f2xx_can.h"
#include "stm32f2xx_crc.h"
#include "stm32f2xx_cryp.h"
#include "stm32f2xx_dac.h"
#include "stm32f2xx_dbgmcu.h"
#include "stm32f2xx_dcmi.h"
#include "stm32f2xx_dma.h"
#include "stm32f2xx_exti.h"
#include "stm32f2xx_flash.h"
#include "stm32f2xx_fsmc.h"
#include "stm32f2xx_hash.h"
#include "stm32f2xx_gpio.h"
#include "stm32f2xx_i2c.h"
#include "stm32f2xx_iwdg.h"
#include "stm32f2xx_pwr.h"
#include "stm32f2xx_rcc.h"
#include "stm32f2xx_rng.h"
#include "stm32f2xx_rtc.h"
#include "stm32f2xx_sdio.h"
#include "stm32f2xx_spi.h"
#include "stm32f2xx_syscfg.h"
#include "stm32f2xx_tim.h"
#include "stm32f2xx_usart.h"
#include "stm32f2xx_wwdg.h"
#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* If an external clock source is used, then the value of the following define
should be set to the value of the external clock source, else, if no external
clock is used, keep this define commented */
/*#define I2S_EXTERNAL_CLOCK_VAL 12288000 */ /* Value of the external clock in Hz */
/* Uncomment the line below to expanse the "assert_param" macro in the
Standard Peripheral Library drivers code */
/* #define USE_FULL_ASSERT 1 */
/* Exported macro ------------------------------------------------------------*/
#ifdef USE_FULL_ASSERT
/**
* @brief The assert_param macro is used for function's parameters check.
* @param expr: If expr is false, it calls assert_failed function
* which reports the name of the source file and the source
* line number of the call that failed.
* If expr is true, it returns no value.
* @retval None
*/
#define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__))
/* Exported functions ------------------------------------------------------- */
void assert_failed(uint8_t* file, uint32_t line);
#else
#define assert_param(expr) ((void)0)
#endif /* USE_FULL_ASSERT */
#endif /* __STM32F2xx_CONF_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,173 +0,0 @@
/**
******************************************************************************
* @file CRYP/DES_TDES_modes/stm32f2xx_it.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main Interrupt Service Routines.
* This file provides template for all exceptions handler and
* peripherals interrupt service routine.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx_it.h"
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup DES_TDES_modes
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/******************************************************************************/
/* Cortex-M3 Processor Exceptions Handlers */
/******************************************************************************/
/**
* @brief This function handles NMI exception.
* @param None
* @retval None
*/
void NMI_Handler(void)
{
}
/**
* @brief This function handles Hard Fault exception.
* @param None
* @retval None
*/
void HardFault_Handler(void)
{
/* Go to infinite loop when Hard Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Memory Manage exception.
* @param None
* @retval None
*/
void MemManage_Handler(void)
{
/* Go to infinite loop when Memory Manage exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Bus Fault exception.
* @param None
* @retval None
*/
void BusFault_Handler(void)
{
/* Go to infinite loop when Bus Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Usage Fault exception.
* @param None
* @retval None
*/
void UsageFault_Handler(void)
{
/* Go to infinite loop when Usage Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles SVCall exception.
* @param None
* @retval None
*/
void SVC_Handler(void)
{
}
/**
* @brief This function handles Debug Monitor exception.
* @param None
* @retval None
*/
void DebugMon_Handler(void)
{
}
/**
* @brief This function handles PendSVC exception.
* @param None
* @retval None
*/
void PendSV_Handler(void)
{
}
/**
* @brief This function handles SysTick Handler.
* @param None
* @retval None
*/
void SysTick_Handler(void)
{
}
/******************************************************************************/
/* STM32F2xx Peripherals Interrupt Handlers */
/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */
/* available peripheral interrupt handler's name please refer to the startup */
/* file (startup_stm32f2xx.s). */
/******************************************************************************/
/**
* @brief This function handles PPP interrupt request.
* @param None
* @retval None
*/
/*void PPP_IRQHandler(void)
{
}*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,60 +0,0 @@
/**
******************************************************************************
* @file CRYP/DES_TDES_modes/stm32f2xx_it.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief This file contains the headers of the interrupt handlers.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_IT_H
#define __STM32F2xx_IT_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
void NMI_Handler(void);
void HardFault_Handler(void);
void MemManage_Handler(void);
void BusFault_Handler(void);
void UsageFault_Handler(void);
void SVC_Handler(void);
void DebugMon_Handler(void);
void PendSV_Handler(void);
void SysTick_Handler(void);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F2xx_IT_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,542 +0,0 @@
/**
******************************************************************************
* @file system_stm32f2xx.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File.
* This file contains the system clock configuration for STM32F2xx devices,
* and is generated by the clock configuration tool
* "STM32f2xx_Clock_Configuration_V1.0.0.xls"
*
* 1. This file provides two functions and one global variable to be called from
* user application:
* - SystemInit(): Setups the system clock (System clock source, PLL Multiplier
* and Divider factors, AHB/APBx prescalers and Flash settings),
* depending on the configuration made in the clock xls tool.
* This function is called at startup just after reset and
* before branch to main program. This call is made inside
* the "startup_stm32f2xx.s" file.
*
* - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
* by the user application to setup the SysTick
* timer or configure other parameters.
*
* - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
* be called whenever the core clock is changed
* during program execution.
*
* 2. After each device reset the HSI (16 MHz) is used as system clock source.
* Then SystemInit() function is called, in "startup_stm32f2xx.s" file, to
* configure the system clock before to branch to main program.
*
* 3. If the system clock source selected by user fails to startup, the SystemInit()
* function will do nothing and HSI still used as system clock source. User can
* add some code to deal with this issue inside the SetSysClock() function.
*
* 4. The default value of HSE crystal is set to 25MHz, refer to "HSE_VALUE" define
* in "stm32f2xx.h" file. When HSE is used as system clock source, directly or
* through PLL, and you are using different crystal you have to adapt the HSE
* value to your own configuration.
*
* 5. This file configures the system clock as follows:
*=============================================================================
*=============================================================================
* Supported STM32F2xx device revision | Rev B and Y
*-----------------------------------------------------------------------------
* System Clock source | PLL (HSE)
*-----------------------------------------------------------------------------
* SYSCLK(Hz) | 120000000
*-----------------------------------------------------------------------------
* HCLK(Hz) | 120000000
*-----------------------------------------------------------------------------
* AHB Prescaler | 1
*-----------------------------------------------------------------------------
* APB1 Prescaler | 4
*-----------------------------------------------------------------------------
* APB2 Prescaler | 2
*-----------------------------------------------------------------------------
* HSE Frequency(Hz) | 25000000
*-----------------------------------------------------------------------------
* PLL_M | 25
*-----------------------------------------------------------------------------
* PLL_N | 240
*-----------------------------------------------------------------------------
* PLL_P | 2
*-----------------------------------------------------------------------------
* PLL_Q | 5
*-----------------------------------------------------------------------------
* PLLI2S_N | NA
*-----------------------------------------------------------------------------
* PLLI2S_R | NA
*-----------------------------------------------------------------------------
* I2S input clock | NA
*-----------------------------------------------------------------------------
* VDD(V) | 3.3
*-----------------------------------------------------------------------------
* Flash Latency(WS) | 3
*-----------------------------------------------------------------------------
* Prefetch Buffer | ON
*-----------------------------------------------------------------------------
* Instruction cache | ON
*-----------------------------------------------------------------------------
* Data cache | ON
*-----------------------------------------------------------------------------
* Require 48MHz for USB OTG FS, | Enabled
* SDIO and RNG clock |
*-----------------------------------------------------------------------------
*=============================================================================
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/** @addtogroup CMSIS
* @{
*/
/** @addtogroup stm32f2xx_system
* @{
*/
/** @addtogroup STM32F2xx_System_Private_Includes
* @{
*/
#include "stm32f2xx.h"
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Defines
* @{
*/
/*!< Uncomment the following line if you need to use external SRAM mounted
on STM322xG_EVAL board as data memory */
/* #define DATA_IN_ExtSRAM */
/*!< Uncomment the following line if you need to relocate your vector Table in
Internal SRAM. */
/* #define VECT_TAB_SRAM */
#define VECT_TAB_OFFSET 0x00 /*!< Vector Table base offset field.
This value must be a multiple of 0x200. */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N */
#define PLL_M 25
#define PLL_N 240
/* SYSCLK = PLL_VCO / PLL_P */
#define PLL_P 2
/* USB OTG FS, SDIO and RNG Clock = PLL_VCO / PLLQ */
#define PLL_Q 5
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Macros
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Variables
* @{
*/
uint32_t SystemCoreClock = 120000000;
__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_FunctionPrototypes
* @{
*/
static void SetSysClock(void);
#ifdef DATA_IN_ExtSRAM
static void SystemInit_ExtMemCtl(void);
#endif /* DATA_IN_ExtSRAM */
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Functions
* @{
*/
/**
* @brief Setup the microcontroller system
* Initialize the Embedded Flash Interface, the PLL and update the
* SystemFrequency variable.
* @param None
* @retval None
*/
void SystemInit(void)
{
/* Reset the RCC clock configuration to the default reset state ------------*/
/* Set HSION bit */
RCC->CR |= (uint32_t)0x00000001;
/* Reset CFGR register */
RCC->CFGR = 0x00000000;
/* Reset HSEON, CSSON and PLLON bits */
RCC->CR &= (uint32_t)0xFEF6FFFF;
/* Reset PLLCFGR register */
RCC->PLLCFGR = 0x24003010;
/* Reset HSEBYP bit */
RCC->CR &= (uint32_t)0xFFFBFFFF;
/* Disable all interrupts */
RCC->CIR = 0x00000000;
#ifdef DATA_IN_ExtSRAM
SystemInit_ExtMemCtl();
#endif /* DATA_IN_ExtSRAM */
/* Configure the System clock source, PLL Multiplier and Divider factors,
AHB/APBx prescalers and Flash settings ----------------------------------*/
SetSysClock();
/* Configure the Vector Table location add offset address ------------------*/
#ifdef VECT_TAB_SRAM
SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */
#else
SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */
#endif
}
/**
* @brief Update SystemCoreClock variable according to Clock Register Values.
* The SystemCoreClock variable contains the core clock (HCLK), it can
* be used by the user application to setup the SysTick timer or configure
* other parameters.
*
* @note Each time the core clock (HCLK) changes, this function must be called
* to update SystemCoreClock variable value. Otherwise, any configuration
* based on this variable will be incorrect.
*
* @note - The system frequency computed by this function is not the real
* frequency in the chip. It is calculated based on the predefined
* constant and the selected clock source:
*
* - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*)
*
* - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**)
*
* - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**)
* or HSI_VALUE(*) multiplied/divided by the PLL factors.
*
* (*) HSI_VALUE is a constant defined in stm32f2xx.h file (default value
* 16 MHz) but the real value may vary depending on the variations
* in voltage and temperature.
*
* (**) HSE_VALUE is a constant defined in stm32f2xx.h file (default value
* 25 MHz), user has to ensure that HSE_VALUE is same as the real
* frequency of the crystal used. Otherwise, this function may
* have wrong result.
*
* - The result of this function could be not correct when using fractional
* value for HSE crystal.
*
* @param None
* @retval None
*/
void SystemCoreClockUpdate(void)
{
uint32_t tmp = 0, pllvco = 0, pllp = 2, pllsource = 0, pllm = 2;
/* Get SYSCLK source -------------------------------------------------------*/
tmp = RCC->CFGR & RCC_CFGR_SWS;
switch (tmp)
{
case 0x00: /* HSI used as system clock source */
SystemCoreClock = HSI_VALUE;
break;
case 0x04: /* HSE used as system clock source */
SystemCoreClock = HSE_VALUE;
break;
case 0x08: /* PLL used as system clock source */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N
SYSCLK = PLL_VCO / PLL_P
*/
pllsource = (RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) >> 22;
pllm = RCC->PLLCFGR & RCC_PLLCFGR_PLLM;
if (pllsource != 0)
{
/* HSE used as PLL clock source */
pllvco = (HSE_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
}
else
{
/* HSI used as PLL clock source */
pllvco = (HSI_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
}
pllp = (((RCC->PLLCFGR & RCC_PLLCFGR_PLLP) >>16) + 1 ) *2;
SystemCoreClock = pllvco/pllp;
break;
default:
SystemCoreClock = HSI_VALUE;
break;
}
/* Compute HCLK frequency --------------------------------------------------*/
/* Get HCLK prescaler */
tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)];
/* HCLK frequency */
SystemCoreClock >>= tmp;
}
/**
* @brief Configures the System clock source, PLL Multiplier and Divider factors,
* AHB/APBx prescalers and Flash settings
* @Note This function should be called only once the RCC clock configuration
* is reset to the default reset state (done in SystemInit() function).
* @param None
* @retval None
*/
static void SetSysClock(void)
{
/******************************************************************************/
/* PLL (clocked by HSE) used as System clock source */
/******************************************************************************/
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
/* Enable HSE */
RCC->CR |= ((uint32_t)RCC_CR_HSEON);
/* Wait till HSE is ready and if Time out is reached exit */
do
{
HSEStatus = RCC->CR & RCC_CR_HSERDY;
StartUpCounter++;
} while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
if ((RCC->CR & RCC_CR_HSERDY) != RESET)
{
HSEStatus = (uint32_t)0x01;
}
else
{
HSEStatus = (uint32_t)0x00;
}
if (HSEStatus == (uint32_t)0x01)
{
/* HCLK = SYSCLK / 1*/
RCC->CFGR |= RCC_CFGR_HPRE_DIV1;
/* PCLK2 = HCLK / 2*/
RCC->CFGR |= RCC_CFGR_PPRE2_DIV2;
/* PCLK1 = HCLK / 4*/
RCC->CFGR |= RCC_CFGR_PPRE1_DIV4;
/* Configure the main PLL */
RCC->PLLCFGR = PLL_M | (PLL_N << 6) | (((PLL_P >> 1) -1) << 16) |
(RCC_PLLCFGR_PLLSRC_HSE) | (PLL_Q << 24);
/* Enable the main PLL */
RCC->CR |= RCC_CR_PLLON;
/* Wait till the main PLL is ready */
while((RCC->CR & RCC_CR_PLLRDY) == 0)
{
}
/* Configure Flash prefetch, Instruction cache, Data cache and wait state */
FLASH->ACR = FLASH_ACR_PRFTEN | FLASH_ACR_ICEN | FLASH_ACR_DCEN | FLASH_ACR_LATENCY_3WS;
/* Select the main PLL as system clock source */
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW));
RCC->CFGR |= RCC_CFGR_SW_PLL;
/* Wait till the main PLL is used as system clock source */
while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS ) != RCC_CFGR_SWS_PLL);
{
}
}
else
{ /* If HSE fails to start-up, the application will have wrong clock
configuration. User can add here some code to deal with this error */
}
}
/**
* @brief Setup the external memory controller. Called in startup_stm32f2xx.s
* before jump to __main
* @param None
* @retval None
*/
#ifdef DATA_IN_ExtSRAM
/**
* @brief Setup the external memory controller.
* Called in startup_stm32f2xx.s before jump to main.
* This function configures the external SRAM mounted on STM322xG_EVAL board
* This SRAM will be used as program data memory (including heap and stack).
* @param None
* @retval None
*/
void SystemInit_ExtMemCtl(void)
{
/*-- GPIOs Configuration -----------------------------------------------------*/
/*
+-------------------+--------------------+------------------+------------------+
+ SRAM pins assignment +
+-------------------+--------------------+------------------+------------------+
| PD0 <-> FSMC_D2 | PE0 <-> FSMC_NBL0 | PF0 <-> FSMC_A0 | PG0 <-> FSMC_A10 |
| PD1 <-> FSMC_D3 | PE1 <-> FSMC_NBL1 | PF1 <-> FSMC_A1 | PG1 <-> FSMC_A11 |
| PD4 <-> FSMC_NOE | PE7 <-> FSMC_D4 | PF2 <-> FSMC_A2 | PG2 <-> FSMC_A12 |
| PD5 <-> FSMC_NWE | PE8 <-> FSMC_D5 | PF3 <-> FSMC_A3 | PG3 <-> FSMC_A13 |
| PD8 <-> FSMC_D13 | PE9 <-> FSMC_D6 | PF4 <-> FSMC_A4 | PG4 <-> FSMC_A14 |
| PD9 <-> FSMC_D14 | PE10 <-> FSMC_D7 | PF5 <-> FSMC_A5 | PG5 <-> FSMC_A15 |
| PD10 <-> FSMC_D15 | PE11 <-> FSMC_D8 | PF12 <-> FSMC_A6 | PG9 <-> FSMC_NE2 |
| PD11 <-> FSMC_A16 | PE12 <-> FSMC_D9 | PF13 <-> FSMC_A7 |------------------+
| PD12 <-> FSMC_A17 | PE13 <-> FSMC_D10 | PF14 <-> FSMC_A8 |
| PD14 <-> FSMC_D0 | PE14 <-> FSMC_D11 | PF15 <-> FSMC_A9 |
| PD15 <-> FSMC_D1 | PE15 <-> FSMC_D12 |------------------+
+-------------------+--------------------+
*/
/* Enable GPIOD, GPIOE, GPIOF and GPIOG interface clock */
RCC->AHB1ENR = 0x00000078;
/* Connect PDx pins to FSMC Alternate function */
GPIOD->AFR[0] = 0x00cc00cc;
GPIOD->AFR[1] = 0xcc0ccccc;
/* Configure PDx pins in Alternate function mode */
GPIOD->MODER = 0xa2aa0a0a;
/* Configure PDx pins speed to 100 MHz */
GPIOD->OSPEEDR = 0xf3ff0f0f;
/* Configure PDx pins Output type to push-pull */
GPIOD->OTYPER = 0x00000000;
/* No pull-up, pull-down for PDx pins */
GPIOD->PUPDR = 0x00000000;
/* Connect PEx pins to FSMC Alternate function */
GPIOE->AFR[0] = 0xc00000cc;
GPIOE->AFR[1] = 0xcccccccc;
/* Configure PEx pins in Alternate function mode */
GPIOE->MODER = 0xaaaa800a;
/* Configure PEx pins speed to 100 MHz */
GPIOE->OSPEEDR = 0xffffc00f;
/* Configure PEx pins Output type to push-pull */
GPIOE->OTYPER = 0x00000000;
/* No pull-up, pull-down for PEx pins */
GPIOE->PUPDR = 0x00000000;
/* Connect PFx pins to FSMC Alternate function */
GPIOF->AFR[0] = 0x00cccccc;
GPIOF->AFR[1] = 0xcccc0000;
/* Configure PFx pins in Alternate function mode */
GPIOF->MODER = 0xaa000aaa;
/* Configure PFx pins speed to 100 MHz */
GPIOF->OSPEEDR = 0xff000fff;
/* Configure PFx pins Output type to push-pull */
GPIOF->OTYPER = 0x00000000;
/* No pull-up, pull-down for PFx pins */
GPIOF->PUPDR = 0x00000000;
/* Connect PGx pins to FSMC Alternate function */
GPIOG->AFR[0] = 0x00cccccc;
GPIOG->AFR[1] = 0x000000c0;
/* Configure PGx pins in Alternate function mode */
GPIOG->MODER = 0x00080aaa;
/* Configure PGx pins speed to 100 MHz */
GPIOG->OSPEEDR = 0x000c0fff;
/* Configure PGx pins Output type to push-pull */
GPIOG->OTYPER = 0x00000000;
/* No pull-up, pull-down for PGx pins */
GPIOG->PUPDR = 0x00000000;
/*-- FSMC Configuration ------------------------------------------------------*/
/* Enable the FSMC interface clock */
RCC->AHB3ENR = 0x00000001;
/* Configure and enable Bank1_SRAM2 */
FSMC_Bank1->BTCR[2] = 0x00001015;
FSMC_Bank1->BTCR[3] = 0x00010400;
FSMC_Bank1E->BWTR[2] = 0x0fffffff;
/*
Bank1_SRAM2 is configured as follow:
p.FSMC_AddressSetupTime = 0;
p.FSMC_AddressHoldTime = 0;
p.FSMC_DataSetupTime = 4;
p.FSMC_BusTurnAroundDuration = 1;
p.FSMC_CLKDivision = 0;
p.FSMC_DataLatency = 0;
p.FSMC_AccessMode = FSMC_AccessMode_A;
FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM2;
FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;
FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_PSRAM;
FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b;
FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_AsynchronousWait = FSMC_AsynchronousWait_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState;
FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;
FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;
FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p;
FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;
*/
}
#endif /* DATA_IN_ExtSRAM */
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,30 +0,0 @@
======================================
==== CRYP TDES Using DMA Example ====
======================================
---------------------------------------
Plain Data:
---------------------------------------
[0x20212223][0x24252627] Block 0
[0x28292a2b][0x2c2d2e2f] Block 1
[0xffeeddcc][0xbbaa9988] Block 2
[0x77665544][0x33221100] Block 3
[0x10000000][0x20000000] Block 4
---------------------------------------
TDES Encrypted Data:
---------------------------------------
[0xc9406174][0xf076c814] Block 0
[0x81a2bcb1][0x4ed3e70d] Block 1
[0x54351409][0x6c4e674b] Block 2
[0x4fde2aec][0xdbe00ac3] Block 3
[0xee46220c][0xcab2cefb] Block 4
---------------------------------------
TDES Decrypted Data:
---------------------------------------
[0x20212223][0x24252627] Block 0
[0x28292a2b][0x2c2d2e2f] Block 1
[0xffeeddcc][0xbbaa9988] Block 2
[0x77665544][0x33221100] Block 3
[0x10000000][0x20000000] Block 4
@@ -1,477 +0,0 @@
/**
******************************************************************************
* @file CRYP/TDES_ECBmode_DMA/main.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main program body
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
#include "stm322xg_eval.h"
#include <stdio.h>
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup TDES_ECBmode_DMA
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define BLOCKS_NBR 5 /* User can change this value to enlarge or reduce the
nbre of blocks to encrypt */
#define DATA_SIZE ((BLOCKS_NBR*64)/32)
#define CRYP_DIN_REG_ADDR ((uint32_t)0x50060008) /* Crypto DIN register address */
#define CRYP_DOUT_REG_ADDR ((uint32_t)0x5006000C) /* Crypto DOUT register address */
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* 192 bit key */
__IO uint32_t TDESkey[6]={0x40414243,0x44454647, /* K1 */
0x48494A4B,0x4C4D4E4F, /* K2 */
0x50515253,0x54555657}; /* K3 */
__IO uint32_t PlainData[DATA_SIZE]={0x20212223,0x24252627, /* Block 0 */
0x28292a2b,0x2c2d2e2f, /* Block 1 */
0xFFEEDDCC,0xBBAA9988, /* Block 2 */
0x77665544,0x33221100, /* Block 3 */
0x10000000,0x20000000 };/* Block 4 */
__IO uint32_t EncryptedData[DATA_SIZE];
__IO uint32_t DecryptedData[DATA_SIZE];
/* Private function prototypes -----------------------------------------------*/
void TDES_Encrypt_DMA(void);
void TDES_Decrypt_DMA(void);
void Display_PlainData(void);
void Display_EncryptedData(void);
void Display_DecryptedData(void);
void USART_Config(void);
#ifdef __GNUC__
/* With GCC/RAISONANCE, small printf (option LD Linker->Libraries->Small printf
set to 'Yes') calls __io_putchar() */
#define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
#else
#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
#endif /* __GNUC__ */
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f2xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f2xx.c file
*/
/* USARTx configured as follow:
- BaudRate = 115200 baud
- Word Length = 8 Bits
- One Stop Bit
- No parity
- Hardware flow control disabled (RTS and CTS signals)
- Receive and transmit enabled
*/
/* USART Configuration */
USART_Config();
/* Display Plain Data*/
Display_PlainData();
/*=====================================================
Encryption
======================================================*/
/* Encrypt */
TDES_Encrypt_DMA();
/* Display encrypted Data*/
Display_EncryptedData();
/*=====================================================
Decryption
======================================================*/
/* Decrypt */
TDES_Decrypt_DMA();
/* Display decrypted data*/
Display_DecryptedData();
while(1);
}
/**
* @brief Encrypt Data using TDES
* @note DATA transfer is done by DMA
* @note DMA2 stream6 channel2 is used to transfer data from memory (the
* PlainData Tab) to CRYP Peripheral (the INPUT data register).
* @note DMA2 stream5 channel2 is used to transfer data from CRYP Peripheral
* (the OUTPUT data register to memory (the EncryptedData Tab).
* @param None
* @retval None
*/
void TDES_Encrypt_DMA(void)
{
CRYP_InitTypeDef CRYP_InitStructure;
CRYP_KeyInitTypeDef CRYP_KeyInitStructure;
DMA_InitTypeDef DMA_InitStructure;
/* Enable CRYP clock */
RCC_AHB2PeriphClockCmd(RCC_AHB2Periph_CRYP, ENABLE);
/* Enable DMA2 clock */
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2, ENABLE);
/* Configure crypto as encoder TDES *****************************************/
/* Crypto Init for Encryption process */
CRYP_InitStructure.CRYP_AlgoDir = CRYP_AlgoDir_Encrypt;
CRYP_InitStructure.CRYP_AlgoMode = CRYP_AlgoMode_TDES_ECB;
CRYP_InitStructure.CRYP_DataType = CRYP_DataType_32b;
CRYP_FIFOFlush();
CRYP_Init(&CRYP_InitStructure);
/* Key Initialisation */
CRYP_KeyInitStructure.CRYP_Key1Left = TDESkey[0];
CRYP_KeyInitStructure.CRYP_Key1Right= TDESkey[1];
CRYP_KeyInitStructure.CRYP_Key2Left = TDESkey[2];
CRYP_KeyInitStructure.CRYP_Key2Right= TDESkey[3];
CRYP_KeyInitStructure.CRYP_Key3Left = TDESkey[4];
CRYP_KeyInitStructure.CRYP_Key3Right= TDESkey[5];
CRYP_KeyInit(&CRYP_KeyInitStructure);
CRYP_DMACmd(CRYP_DMAReq_DataOUT, ENABLE);
CRYP_DMACmd(CRYP_DMAReq_DataIN, ENABLE);
/* DMA Configuration*********************************************************/
/* set commun DMA parameters for Stream 5 and 6*/
DMA_DeInit(DMA2_Stream5);
DMA_DeInit(DMA2_Stream6);
DMA_InitStructure.DMA_Channel = DMA_Channel_2;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word;
DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
DMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Enable;
DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_HalfFull;
DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_BufferSize = DATA_SIZE;
/* Set the parameters to be configured specific to stream 6*/
DMA_InitStructure.DMA_PeripheralBaseAddr = CRYP_DIN_REG_ADDR;
DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)PlainData;
DMA_InitStructure.DMA_DIR = DMA_DIR_MemoryToPeripheral;
/* Configure the DMA Stream 6 */
DMA_Init(DMA2_Stream6, &DMA_InitStructure);
/* Set the parameters to be configured specific to stream 5*/
DMA_InitStructure.DMA_PeripheralBaseAddr = CRYP_DOUT_REG_ADDR;
DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)EncryptedData;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
/* Configure the DMA Stream 5 */
DMA_Init(DMA2_Stream5, &DMA_InitStructure);
/* Enable DMA streams*/
DMA_Cmd(DMA2_Stream6, ENABLE);
DMA_Cmd(DMA2_Stream5, ENABLE);
/* Enable Crypto processor */
CRYP_Cmd(ENABLE);
/* wait until the last transfer from OUT FIFO :
all encrypted Data are transfered from crypt processor */
while (DMA_GetFlagStatus(DMA2_Stream5, DMA_FLAG_TCIF5) == RESET);
/* Disable Crypto and DMA ***************************************************/
CRYP_Cmd(DISABLE);
CRYP_DMACmd(CRYP_DMAReq_DataOUT, DISABLE);
CRYP_DMACmd(CRYP_DMAReq_DataIN, DISABLE);
DMA_Cmd(DMA2_Stream5, DISABLE);
DMA_Cmd(DMA2_Stream6, DISABLE);
}
/**
* @brief Decrypt Data using TDES
* @note DATA transfer is done by DMA
* @note DMA2 stream6 channel2 is used to transfer data from memory (the
* EncryptedData Tab) to CRYP Peripheral (the INPUT data register).
* @note DMA2 stream5 channel2 is used to transfer data from CRYP Peripheral
* (the OUTPUT data register to memory (the DecryptedData Tab).
* @param None
* @retval None
*/
void TDES_Decrypt_DMA(void)
{
CRYP_InitTypeDef CRYP_InitStructure;
CRYP_KeyInitTypeDef CRYP_KeyInitStructure;
DMA_InitTypeDef DMA_InitStructure;
/* Enable CRYP clock */
RCC_AHB2PeriphClockCmd(RCC_AHB2Periph_CRYP, ENABLE);
/* Enable DMA2 clock */
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2, ENABLE);
/* configure crypto as Decoder TDES *****************************************/
CRYP_FIFOFlush();
/* Crypto Init for Decryption process */
CRYP_InitStructure.CRYP_AlgoDir = CRYP_AlgoDir_Decrypt;
CRYP_InitStructure.CRYP_AlgoMode = CRYP_AlgoMode_TDES_ECB;
CRYP_InitStructure.CRYP_DataType = CRYP_DataType_32b;
CRYP_Init(&CRYP_InitStructure);
/* Key Initialisation */
CRYP_KeyInitStructure.CRYP_Key1Left = TDESkey[0];
CRYP_KeyInitStructure.CRYP_Key1Right= TDESkey[1];
CRYP_KeyInitStructure.CRYP_Key2Left = TDESkey[2];
CRYP_KeyInitStructure.CRYP_Key2Right= TDESkey[3];
CRYP_KeyInitStructure.CRYP_Key3Left = TDESkey[4];
CRYP_KeyInitStructure.CRYP_Key3Right= TDESkey[5];
CRYP_KeyInit(&CRYP_KeyInitStructure);
CRYP_DMACmd(CRYP_DMAReq_DataOUT, ENABLE);
CRYP_DMACmd(CRYP_DMAReq_DataIN, ENABLE);
/* DMA Configuration ********************************************************/
/* set commun DMA parameters for Stream 5 and 6*/
DMA_DeInit(DMA2_Stream5);
DMA_DeInit(DMA2_Stream6);
DMA_InitStructure.DMA_Channel = DMA_Channel_2;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word;
DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
DMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Enable;
DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_HalfFull;
DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_BufferSize = DATA_SIZE;
/* Set the parameters to be configured specific to stream 6*/
DMA_InitStructure.DMA_PeripheralBaseAddr = CRYP_DIN_REG_ADDR;
DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)EncryptedData;
DMA_InitStructure.DMA_DIR = DMA_DIR_MemoryToPeripheral;
/* Configure the DMA Stream 6 */
DMA_Init(DMA2_Stream6, &DMA_InitStructure);
/* Set the parameters to be configured specific to stream 5*/
DMA_InitStructure.DMA_PeripheralBaseAddr = CRYP_DOUT_REG_ADDR;
DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)DecryptedData;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
/* Configure the DMA Stream 5 */
DMA_Init(DMA2_Stream5, &DMA_InitStructure);
/* Enable DMA streams*/
DMA_Cmd(DMA2_Stream6, ENABLE);
DMA_Cmd(DMA2_Stream5, ENABLE);
/* Enable Crypo Processor */
CRYP_Cmd(ENABLE);
/* wait until the last transfer from OUT FIFO :
all encrypted Data are transfered from crypt processor */
while (DMA_GetFlagStatus(DMA2_Stream5, DMA_FLAG_TCIF5) == RESET);
/* Disable Crypto and DMA ***************************************************/
CRYP_Cmd(DISABLE);
CRYP_DMACmd(CRYP_DMAReq_DataOUT, DISABLE);
CRYP_DMACmd(CRYP_DMAReq_DataIN, DISABLE);
DMA_Cmd(DMA2_Stream5, DISABLE);
DMA_Cmd(DMA2_Stream6, DISABLE);
}
/**
* @brief Display Plain Data
* @param None
* @retval None
*/
void Display_PlainData(void)
{
uint32_t BufferCounter = 0;
uint8_t count = 0;
printf("\n\r ======================================\n\r");
printf(" ==== CRYP TDES Using DMA Example ====\n\r");
printf(" ======================================\n\r");
printf(" ---------------------------------------\n\r");
printf(" Plain Data:\n\r");
printf(" ---------------------------------------\n\r");
for(BufferCounter=0; BufferCounter<DATA_SIZE; BufferCounter++)
{
printf("[0x%8x]", PlainData[BufferCounter]);
count++;
if(count == 2)
{
count = 0;
printf(" Block %d\n\r", BufferCounter/2);
}
}
}
/**
* @brief Display Encrypted Data
* @param None
* @retval None
*/
void Display_EncryptedData(void)
{
uint32_t BufferCounter = 0;
uint8_t count=0;
printf("\n\r ---------------------------------------\n\r");
printf(" TDES Encrypted Data:\n\r");
printf(" ---------------------------------------\n\r");
for(BufferCounter = 0; BufferCounter<DATA_SIZE; BufferCounter++)
{
printf("[0x%8x]", EncryptedData[BufferCounter]);
count++;
if(count == 2)
{
count = 0;
printf(" Block %d\n\r", BufferCounter/2);
}
}
}
/**
* @brief Display Decrypted Data
* @param None
* @retval None
*/
void Display_DecryptedData(void)
{
uint32_t BufferCounter = 0;
uint8_t count = 0;
printf("\n\r ---------------------------------------\n\r");
printf(" TDES Decrypted Data:\n\r");
printf(" ---------------------------------------\n\r");
for(BufferCounter = 0; BufferCounter<DATA_SIZE; BufferCounter++)
{
printf("[0x%8x]", DecryptedData[BufferCounter]);
count++;
if(count == 2)
{
count = 0;
printf(" Block %d\n\r", BufferCounter/2);
}
}
}
/**
* @brief USART configuration
* @param None
* @retval None
*/
void USART_Config(void)
{
USART_InitTypeDef USART_InitStructure;
USART_InitStructure.USART_BaudRate = 115200;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
STM_EVAL_COMInit(COM1, &USART_InitStructure);
}
/**
* @brief Retargets the C library printf function to the USART.
* @param None
* @retval None
*/
PUTCHAR_PROTOTYPE
{
/* Place your implementation of fputc here */
/* e.g. write a character to the USART */
USART_SendData(EVAL_COM1, (uint8_t) ch);
/* Loop until the end of transmission */
while (USART_GetFlagStatus(EVAL_COM1, USART_FLAG_TC) == RESET)
{}
return ch;
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,101 +0,0 @@
/**
@page TDES_ECBmode_DMA Encrypt and Decrypt data using TDES Algo in ECB mode, with DMA
@verbatim
******************** (C) COPYRIGHT 2012 STMicroelectronics *******************
* @file CRYP/TDES_ECBmode_DMA/readme.txt
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Description of the CRYP TDES Algorithm in ECB mode with DMA Example
******************************************************************************
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
@endverbatim
@par Example Description
This example provides a short description of how to use the CRYPTO peripheral to
encrypt and decrypt data using TDES Algorithm.
For this example, DMA is used to transfer data from memory to the CRYPTO processor
IN FIFO and also to transfer data from CRYPTO processor OUT FIFO to memory.
The data to be encrypted is a 320 bit data, which correspond to 5 TDES Blocks.
This example behaves as follow:
- TDES Encryption (PlainData --> EncryptedData)
- TDES Decryption (EncryptedData --> DecryptedData)
The Plain data, encrypted data and decrypted data can be displayed on a PC
HyperTerminal using the USART (CN16).
The USARTx is configured as follow:
- BaudRate = 115200 baud
- Word Length = 8 Bits
- One Stop Bit
- No parity
- Hardware flow control disabled (RTS and CTS signals)
- Receive and transmit enabled
@par Directory contents
- CRYP/TDES_ECBmode_DMA/system_stm32f2xx.c STM32F2xx system clock configuration file
- CRYP/TDES_ECBmode_DMA/stm32f2xx_conf.h Library Configuration file
- CRYP/TDES_ECBmode_DMA/stm32f2xx_it.h Interrupt handlers header file
- CRYP/TDES_ECBmode_DMA/stm32f2xx_it.c Interrupt handlers
- CRYP/TDES_ECBmode_DMA/main.c Main program
@note The "system_stm32f2xx.c" is generated by an automatic clock configuration
tool and can be easily customized to your own configuration.
To select different clock setup, use the "STM32F2xx_Clock_Configuration_V1.0.0.xls"
provided with the AN3362 package available on <a href="http://www.st.com/internet/mcu/family/141.jsp"> ST Microcontrollers </a>
@par Hardware and Software environment
- This example runs only on STM32F21x Devices (Cryptographic acceleration not
embedded in STM32F20x Devices).
- This example has been tested with STM322xG-EVAL RevB and can be easily tailored
to any other development board.
- STM322xG-EVAL Set-up
- Connect a null-modem female/female RS232 cable between the DB9 connector
CN16 (USART3) and PC serial port.
@note Make sure that jumper JP22 is in position 1-2
- Hyperterminal configuration:
- Word Length = 8 Bits
- One Stop Bit
- No parity
- BaudRate = 115200 baud
- flow control: None
@par How to use it ?
In order to make the program work, you must do the following :
- Copy all source files from this example folder to the template folder under
Project\STM32F2xx_StdPeriph_Template
- Open your preferred toolchain
- Rebuild all files and load your image into target memory
- Run the example
* <h3><center>&copy; COPYRIGHT STMicroelectronics</center></h3>
*/
@@ -1,94 +0,0 @@
/**
******************************************************************************
* @file CRYP/TDES_ECBmode_DMA/stm32f2xx_conf.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Library configuration file.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_CONF_H
#define __STM32F2xx_CONF_H
/* Includes ------------------------------------------------------------------*/
/* Uncomment the line below to enable peripheral header file inclusion */
#include "stm32f2xx_adc.h"
#include "stm32f2xx_can.h"
#include "stm32f2xx_crc.h"
#include "stm32f2xx_cryp.h"
#include "stm32f2xx_dac.h"
#include "stm32f2xx_dbgmcu.h"
#include "stm32f2xx_dcmi.h"
#include "stm32f2xx_dma.h"
#include "stm32f2xx_exti.h"
#include "stm32f2xx_flash.h"
#include "stm32f2xx_fsmc.h"
#include "stm32f2xx_hash.h"
#include "stm32f2xx_gpio.h"
#include "stm32f2xx_i2c.h"
#include "stm32f2xx_iwdg.h"
#include "stm32f2xx_pwr.h"
#include "stm32f2xx_rcc.h"
#include "stm32f2xx_rng.h"
#include "stm32f2xx_rtc.h"
#include "stm32f2xx_sdio.h"
#include "stm32f2xx_spi.h"
#include "stm32f2xx_syscfg.h"
#include "stm32f2xx_tim.h"
#include "stm32f2xx_usart.h"
#include "stm32f2xx_wwdg.h"
#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* If an external clock source is used, then the value of the following define
should be set to the value of the external clock source, else, if no external
clock is used, keep this define commented */
/*#define I2S_EXTERNAL_CLOCK_VAL 12288000 */ /* Value of the external clock in Hz */
/* Uncomment the line below to expanse the "assert_param" macro in the
Standard Peripheral Library drivers code */
/* #define USE_FULL_ASSERT 1 */
/* Exported macro ------------------------------------------------------------*/
#ifdef USE_FULL_ASSERT
/**
* @brief The assert_param macro is used for function's parameters check.
* @param expr: If expr is false, it calls assert_failed function
* which reports the name of the source file and the source
* line number of the call that failed.
* If expr is true, it returns no value.
* @retval None
*/
#define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__))
/* Exported functions ------------------------------------------------------- */
void assert_failed(uint8_t* file, uint32_t line);
#else
#define assert_param(expr) ((void)0)
#endif /* USE_FULL_ASSERT */
#endif /* __STM32F2xx_CONF_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,173 +0,0 @@
/**
******************************************************************************
* @file CRYP/TDES_ECBmode_DMA/stm32f2xx_it.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main Interrupt Service Routines.
* This file provides template for all exceptions handler and
* peripherals interrupt service routine.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx_it.h"
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup TDES_ECBmode_DMA
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/******************************************************************************/
/* Cortex-M3 Processor Exceptions Handlers */
/******************************************************************************/
/**
* @brief This function handles NMI exception.
* @param None
* @retval None
*/
void NMI_Handler(void)
{
}
/**
* @brief This function handles Hard Fault exception.
* @param None
* @retval None
*/
void HardFault_Handler(void)
{
/* Go to infinite loop when Hard Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Memory Manage exception.
* @param None
* @retval None
*/
void MemManage_Handler(void)
{
/* Go to infinite loop when Memory Manage exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Bus Fault exception.
* @param None
* @retval None
*/
void BusFault_Handler(void)
{
/* Go to infinite loop when Bus Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Usage Fault exception.
* @param None
* @retval None
*/
void UsageFault_Handler(void)
{
/* Go to infinite loop when Usage Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles SVCall exception.
* @param None
* @retval None
*/
void SVC_Handler(void)
{
}
/**
* @brief This function handles Debug Monitor exception.
* @param None
* @retval None
*/
void DebugMon_Handler(void)
{
}
/**
* @brief This function handles PendSVC exception.
* @param None
* @retval None
*/
void PendSV_Handler(void)
{
}
/**
* @brief This function handles SysTick Handler.
* @param None
* @retval None
*/
void SysTick_Handler(void)
{
}
/******************************************************************************/
/* STM32F2xx Peripherals Interrupt Handlers */
/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */
/* available peripheral interrupt handler's name please refer to the startup */
/* file (startup_stm32f2xx.s). */
/******************************************************************************/
/**
* @brief This function handles PPP interrupt request.
* @param None
* @retval None
*/
/*void PPP_IRQHandler(void)
{
}*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,60 +0,0 @@
/**
******************************************************************************
* @file CRYP/TDES_ECBmode_DMA/stm32f2xx_it.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief This file contains the headers of the interrupt handlers.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_IT_H
#define __STM32F2xx_IT_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
void NMI_Handler(void);
void HardFault_Handler(void);
void MemManage_Handler(void);
void BusFault_Handler(void);
void UsageFault_Handler(void);
void SVC_Handler(void);
void DebugMon_Handler(void);
void PendSV_Handler(void);
void SysTick_Handler(void);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F2xx_IT_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,542 +0,0 @@
/**
******************************************************************************
* @file system_stm32f2xx.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File.
* This file contains the system clock configuration for STM32F2xx devices,
* and is generated by the clock configuration tool
* "STM32f2xx_Clock_Configuration_V1.0.0.xls"
*
* 1. This file provides two functions and one global variable to be called from
* user application:
* - SystemInit(): Setups the system clock (System clock source, PLL Multiplier
* and Divider factors, AHB/APBx prescalers and Flash settings),
* depending on the configuration made in the clock xls tool.
* This function is called at startup just after reset and
* before branch to main program. This call is made inside
* the "startup_stm32f2xx.s" file.
*
* - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
* by the user application to setup the SysTick
* timer or configure other parameters.
*
* - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
* be called whenever the core clock is changed
* during program execution.
*
* 2. After each device reset the HSI (16 MHz) is used as system clock source.
* Then SystemInit() function is called, in "startup_stm32f2xx.s" file, to
* configure the system clock before to branch to main program.
*
* 3. If the system clock source selected by user fails to startup, the SystemInit()
* function will do nothing and HSI still used as system clock source. User can
* add some code to deal with this issue inside the SetSysClock() function.
*
* 4. The default value of HSE crystal is set to 25MHz, refer to "HSE_VALUE" define
* in "stm32f2xx.h" file. When HSE is used as system clock source, directly or
* through PLL, and you are using different crystal you have to adapt the HSE
* value to your own configuration.
*
* 5. This file configures the system clock as follows:
*=============================================================================
*=============================================================================
* Supported STM32F2xx device revision | Rev B and Y
*-----------------------------------------------------------------------------
* System Clock source | PLL (HSE)
*-----------------------------------------------------------------------------
* SYSCLK(Hz) | 120000000
*-----------------------------------------------------------------------------
* HCLK(Hz) | 120000000
*-----------------------------------------------------------------------------
* AHB Prescaler | 1
*-----------------------------------------------------------------------------
* APB1 Prescaler | 4
*-----------------------------------------------------------------------------
* APB2 Prescaler | 2
*-----------------------------------------------------------------------------
* HSE Frequency(Hz) | 25000000
*-----------------------------------------------------------------------------
* PLL_M | 25
*-----------------------------------------------------------------------------
* PLL_N | 240
*-----------------------------------------------------------------------------
* PLL_P | 2
*-----------------------------------------------------------------------------
* PLL_Q | 5
*-----------------------------------------------------------------------------
* PLLI2S_N | NA
*-----------------------------------------------------------------------------
* PLLI2S_R | NA
*-----------------------------------------------------------------------------
* I2S input clock | NA
*-----------------------------------------------------------------------------
* VDD(V) | 3.3
*-----------------------------------------------------------------------------
* Flash Latency(WS) | 3
*-----------------------------------------------------------------------------
* Prefetch Buffer | ON
*-----------------------------------------------------------------------------
* Instruction cache | ON
*-----------------------------------------------------------------------------
* Data cache | ON
*-----------------------------------------------------------------------------
* Require 48MHz for USB OTG FS, | Enabled
* SDIO and RNG clock |
*-----------------------------------------------------------------------------
*=============================================================================
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/** @addtogroup CMSIS
* @{
*/
/** @addtogroup stm32f2xx_system
* @{
*/
/** @addtogroup STM32F2xx_System_Private_Includes
* @{
*/
#include "stm32f2xx.h"
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Defines
* @{
*/
/*!< Uncomment the following line if you need to use external SRAM mounted
on STM322xG_EVAL board as data memory */
/* #define DATA_IN_ExtSRAM */
/*!< Uncomment the following line if you need to relocate your vector Table in
Internal SRAM. */
/* #define VECT_TAB_SRAM */
#define VECT_TAB_OFFSET 0x00 /*!< Vector Table base offset field.
This value must be a multiple of 0x200. */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N */
#define PLL_M 25
#define PLL_N 240
/* SYSCLK = PLL_VCO / PLL_P */
#define PLL_P 2
/* USB OTG FS, SDIO and RNG Clock = PLL_VCO / PLLQ */
#define PLL_Q 5
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Macros
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Variables
* @{
*/
uint32_t SystemCoreClock = 120000000;
__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_FunctionPrototypes
* @{
*/
static void SetSysClock(void);
#ifdef DATA_IN_ExtSRAM
static void SystemInit_ExtMemCtl(void);
#endif /* DATA_IN_ExtSRAM */
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Functions
* @{
*/
/**
* @brief Setup the microcontroller system
* Initialize the Embedded Flash Interface, the PLL and update the
* SystemFrequency variable.
* @param None
* @retval None
*/
void SystemInit(void)
{
/* Reset the RCC clock configuration to the default reset state ------------*/
/* Set HSION bit */
RCC->CR |= (uint32_t)0x00000001;
/* Reset CFGR register */
RCC->CFGR = 0x00000000;
/* Reset HSEON, CSSON and PLLON bits */
RCC->CR &= (uint32_t)0xFEF6FFFF;
/* Reset PLLCFGR register */
RCC->PLLCFGR = 0x24003010;
/* Reset HSEBYP bit */
RCC->CR &= (uint32_t)0xFFFBFFFF;
/* Disable all interrupts */
RCC->CIR = 0x00000000;
#ifdef DATA_IN_ExtSRAM
SystemInit_ExtMemCtl();
#endif /* DATA_IN_ExtSRAM */
/* Configure the System clock source, PLL Multiplier and Divider factors,
AHB/APBx prescalers and Flash settings ----------------------------------*/
SetSysClock();
/* Configure the Vector Table location add offset address ------------------*/
#ifdef VECT_TAB_SRAM
SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */
#else
SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */
#endif
}
/**
* @brief Update SystemCoreClock variable according to Clock Register Values.
* The SystemCoreClock variable contains the core clock (HCLK), it can
* be used by the user application to setup the SysTick timer or configure
* other parameters.
*
* @note Each time the core clock (HCLK) changes, this function must be called
* to update SystemCoreClock variable value. Otherwise, any configuration
* based on this variable will be incorrect.
*
* @note - The system frequency computed by this function is not the real
* frequency in the chip. It is calculated based on the predefined
* constant and the selected clock source:
*
* - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*)
*
* - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**)
*
* - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**)
* or HSI_VALUE(*) multiplied/divided by the PLL factors.
*
* (*) HSI_VALUE is a constant defined in stm32f2xx.h file (default value
* 16 MHz) but the real value may vary depending on the variations
* in voltage and temperature.
*
* (**) HSE_VALUE is a constant defined in stm32f2xx.h file (default value
* 25 MHz), user has to ensure that HSE_VALUE is same as the real
* frequency of the crystal used. Otherwise, this function may
* have wrong result.
*
* - The result of this function could be not correct when using fractional
* value for HSE crystal.
*
* @param None
* @retval None
*/
void SystemCoreClockUpdate(void)
{
uint32_t tmp = 0, pllvco = 0, pllp = 2, pllsource = 0, pllm = 2;
/* Get SYSCLK source -------------------------------------------------------*/
tmp = RCC->CFGR & RCC_CFGR_SWS;
switch (tmp)
{
case 0x00: /* HSI used as system clock source */
SystemCoreClock = HSI_VALUE;
break;
case 0x04: /* HSE used as system clock source */
SystemCoreClock = HSE_VALUE;
break;
case 0x08: /* PLL used as system clock source */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N
SYSCLK = PLL_VCO / PLL_P
*/
pllsource = (RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) >> 22;
pllm = RCC->PLLCFGR & RCC_PLLCFGR_PLLM;
if (pllsource != 0)
{
/* HSE used as PLL clock source */
pllvco = (HSE_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
}
else
{
/* HSI used as PLL clock source */
pllvco = (HSI_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
}
pllp = (((RCC->PLLCFGR & RCC_PLLCFGR_PLLP) >>16) + 1 ) *2;
SystemCoreClock = pllvco/pllp;
break;
default:
SystemCoreClock = HSI_VALUE;
break;
}
/* Compute HCLK frequency --------------------------------------------------*/
/* Get HCLK prescaler */
tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)];
/* HCLK frequency */
SystemCoreClock >>= tmp;
}
/**
* @brief Configures the System clock source, PLL Multiplier and Divider factors,
* AHB/APBx prescalers and Flash settings
* @Note This function should be called only once the RCC clock configuration
* is reset to the default reset state (done in SystemInit() function).
* @param None
* @retval None
*/
static void SetSysClock(void)
{
/******************************************************************************/
/* PLL (clocked by HSE) used as System clock source */
/******************************************************************************/
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
/* Enable HSE */
RCC->CR |= ((uint32_t)RCC_CR_HSEON);
/* Wait till HSE is ready and if Time out is reached exit */
do
{
HSEStatus = RCC->CR & RCC_CR_HSERDY;
StartUpCounter++;
} while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
if ((RCC->CR & RCC_CR_HSERDY) != RESET)
{
HSEStatus = (uint32_t)0x01;
}
else
{
HSEStatus = (uint32_t)0x00;
}
if (HSEStatus == (uint32_t)0x01)
{
/* HCLK = SYSCLK / 1*/
RCC->CFGR |= RCC_CFGR_HPRE_DIV1;
/* PCLK2 = HCLK / 2*/
RCC->CFGR |= RCC_CFGR_PPRE2_DIV2;
/* PCLK1 = HCLK / 4*/
RCC->CFGR |= RCC_CFGR_PPRE1_DIV4;
/* Configure the main PLL */
RCC->PLLCFGR = PLL_M | (PLL_N << 6) | (((PLL_P >> 1) -1) << 16) |
(RCC_PLLCFGR_PLLSRC_HSE) | (PLL_Q << 24);
/* Enable the main PLL */
RCC->CR |= RCC_CR_PLLON;
/* Wait till the main PLL is ready */
while((RCC->CR & RCC_CR_PLLRDY) == 0)
{
}
/* Configure Flash prefetch, Instruction cache, Data cache and wait state */
FLASH->ACR = FLASH_ACR_PRFTEN | FLASH_ACR_ICEN | FLASH_ACR_DCEN | FLASH_ACR_LATENCY_3WS;
/* Select the main PLL as system clock source */
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW));
RCC->CFGR |= RCC_CFGR_SW_PLL;
/* Wait till the main PLL is used as system clock source */
while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS ) != RCC_CFGR_SWS_PLL);
{
}
}
else
{ /* If HSE fails to start-up, the application will have wrong clock
configuration. User can add here some code to deal with this error */
}
}
/**
* @brief Setup the external memory controller. Called in startup_stm32f2xx.s
* before jump to __main
* @param None
* @retval None
*/
#ifdef DATA_IN_ExtSRAM
/**
* @brief Setup the external memory controller.
* Called in startup_stm32f2xx.s before jump to main.
* This function configures the external SRAM mounted on STM322xG_EVAL board
* This SRAM will be used as program data memory (including heap and stack).
* @param None
* @retval None
*/
void SystemInit_ExtMemCtl(void)
{
/*-- GPIOs Configuration -----------------------------------------------------*/
/*
+-------------------+--------------------+------------------+------------------+
+ SRAM pins assignment +
+-------------------+--------------------+------------------+------------------+
| PD0 <-> FSMC_D2 | PE0 <-> FSMC_NBL0 | PF0 <-> FSMC_A0 | PG0 <-> FSMC_A10 |
| PD1 <-> FSMC_D3 | PE1 <-> FSMC_NBL1 | PF1 <-> FSMC_A1 | PG1 <-> FSMC_A11 |
| PD4 <-> FSMC_NOE | PE7 <-> FSMC_D4 | PF2 <-> FSMC_A2 | PG2 <-> FSMC_A12 |
| PD5 <-> FSMC_NWE | PE8 <-> FSMC_D5 | PF3 <-> FSMC_A3 | PG3 <-> FSMC_A13 |
| PD8 <-> FSMC_D13 | PE9 <-> FSMC_D6 | PF4 <-> FSMC_A4 | PG4 <-> FSMC_A14 |
| PD9 <-> FSMC_D14 | PE10 <-> FSMC_D7 | PF5 <-> FSMC_A5 | PG5 <-> FSMC_A15 |
| PD10 <-> FSMC_D15 | PE11 <-> FSMC_D8 | PF12 <-> FSMC_A6 | PG9 <-> FSMC_NE2 |
| PD11 <-> FSMC_A16 | PE12 <-> FSMC_D9 | PF13 <-> FSMC_A7 |------------------+
| PD12 <-> FSMC_A17 | PE13 <-> FSMC_D10 | PF14 <-> FSMC_A8 |
| PD14 <-> FSMC_D0 | PE14 <-> FSMC_D11 | PF15 <-> FSMC_A9 |
| PD15 <-> FSMC_D1 | PE15 <-> FSMC_D12 |------------------+
+-------------------+--------------------+
*/
/* Enable GPIOD, GPIOE, GPIOF and GPIOG interface clock */
RCC->AHB1ENR = 0x00000078;
/* Connect PDx pins to FSMC Alternate function */
GPIOD->AFR[0] = 0x00cc00cc;
GPIOD->AFR[1] = 0xcc0ccccc;
/* Configure PDx pins in Alternate function mode */
GPIOD->MODER = 0xa2aa0a0a;
/* Configure PDx pins speed to 100 MHz */
GPIOD->OSPEEDR = 0xf3ff0f0f;
/* Configure PDx pins Output type to push-pull */
GPIOD->OTYPER = 0x00000000;
/* No pull-up, pull-down for PDx pins */
GPIOD->PUPDR = 0x00000000;
/* Connect PEx pins to FSMC Alternate function */
GPIOE->AFR[0] = 0xc00000cc;
GPIOE->AFR[1] = 0xcccccccc;
/* Configure PEx pins in Alternate function mode */
GPIOE->MODER = 0xaaaa800a;
/* Configure PEx pins speed to 100 MHz */
GPIOE->OSPEEDR = 0xffffc00f;
/* Configure PEx pins Output type to push-pull */
GPIOE->OTYPER = 0x00000000;
/* No pull-up, pull-down for PEx pins */
GPIOE->PUPDR = 0x00000000;
/* Connect PFx pins to FSMC Alternate function */
GPIOF->AFR[0] = 0x00cccccc;
GPIOF->AFR[1] = 0xcccc0000;
/* Configure PFx pins in Alternate function mode */
GPIOF->MODER = 0xaa000aaa;
/* Configure PFx pins speed to 100 MHz */
GPIOF->OSPEEDR = 0xff000fff;
/* Configure PFx pins Output type to push-pull */
GPIOF->OTYPER = 0x00000000;
/* No pull-up, pull-down for PFx pins */
GPIOF->PUPDR = 0x00000000;
/* Connect PGx pins to FSMC Alternate function */
GPIOG->AFR[0] = 0x00cccccc;
GPIOG->AFR[1] = 0x000000c0;
/* Configure PGx pins in Alternate function mode */
GPIOG->MODER = 0x00080aaa;
/* Configure PGx pins speed to 100 MHz */
GPIOG->OSPEEDR = 0x000c0fff;
/* Configure PGx pins Output type to push-pull */
GPIOG->OTYPER = 0x00000000;
/* No pull-up, pull-down for PGx pins */
GPIOG->PUPDR = 0x00000000;
/*-- FSMC Configuration ------------------------------------------------------*/
/* Enable the FSMC interface clock */
RCC->AHB3ENR = 0x00000001;
/* Configure and enable Bank1_SRAM2 */
FSMC_Bank1->BTCR[2] = 0x00001015;
FSMC_Bank1->BTCR[3] = 0x00010400;
FSMC_Bank1E->BWTR[2] = 0x0fffffff;
/*
Bank1_SRAM2 is configured as follow:
p.FSMC_AddressSetupTime = 0;
p.FSMC_AddressHoldTime = 0;
p.FSMC_DataSetupTime = 4;
p.FSMC_BusTurnAroundDuration = 1;
p.FSMC_CLKDivision = 0;
p.FSMC_DataLatency = 0;
p.FSMC_AccessMode = FSMC_AccessMode_A;
FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM2;
FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;
FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_PSRAM;
FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b;
FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_AsynchronousWait = FSMC_AsynchronousWait_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState;
FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;
FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;
FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p;
FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;
*/
}
#endif /* DATA_IN_ExtSRAM */
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,145 +0,0 @@
/**
******************************************************************************
* @file CortexM3/BitBand/main.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main program body
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup CortexM3_BitBand
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
#define Var_ResetBit_BB(VarAddr, BitNumber) \
(*(__IO uint32_t *) (SRAM_BB_BASE | ((VarAddr - SRAM_BASE) << 5) | ((BitNumber) << 2)) = 0)
#define Var_SetBit_BB(VarAddr, BitNumber) \
(*(__IO uint32_t *) (SRAM_BB_BASE | ((VarAddr - SRAM_BASE) << 5) | ((BitNumber) << 2)) = 1)
#define Var_GetBit_BB(VarAddr, BitNumber) \
(*(__IO uint32_t *) (SRAM_BB_BASE | ((VarAddr - SRAM_BASE) << 5) | ((BitNumber) << 2)))
/* Private variables ---------------------------------------------------------*/
__IO uint32_t Var, VarAddr = 0, VarBitValue = 0;
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f2xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f2xx.c file
*/
Var = 0x00005AA5;
/* A mapping formula shows how to reference each word in the alias region to a
corresponding bit in the bit-band region. The mapping formula is:
bit_word_addr = bit_band_base + (byte_offset x 32) + (bit_number + 4)
where:
- bit_word_addr: is the address of the word in the alias memory region that
maps to the targeted bit.
- bit_band_base is the starting address of the alias region
- byte_offset is the number of the byte in the bit-band region that contains
the targeted bit
- bit_number is the bit position (0-7) of the targeted bit */
/* Get the variable address --------------------------------------------------*/
VarAddr = (uint32_t)&Var;
/* Modify variable bit using bit-band access ---------------------------------*/
/* Modify Var variable bit 0 -----------------------------------------------*/
Var_ResetBit_BB(VarAddr, 0); /* Var = 0x00005AA4 */
Var_SetBit_BB(VarAddr, 0); /* Var = 0x00005AA5 */
/* Modify Var variable bit 11 ----------------------------------------------*/
Var_ResetBit_BB(VarAddr, 11); /* Var = 0x000052A5 */
/* Get Var variable bit 11 value */
VarBitValue = Var_GetBit_BB(VarAddr, 11); /* VarBitValue = 0x00000000 */
Var_SetBit_BB(VarAddr, 11); /* Var = 0x00005AA5 */
/* Get Var variable bit 11 value */
VarBitValue = Var_GetBit_BB(VarAddr, 11); /* VarBitValue = 0x00000001 */
/* Modify Var variable bit 31 ----------------------------------------------*/
Var_SetBit_BB(VarAddr, 31); /* Var = 0x80005AA5 */
/* Get Var variable bit 31 value */
VarBitValue = Var_GetBit_BB(VarAddr, 31); /* VarBitValue = 0x00000001 */
Var_ResetBit_BB(VarAddr, 31); /* Var = 0x00005AA5 */
/* Get Var variable bit 31 value */
VarBitValue = Var_GetBit_BB(VarAddr, 31); /* VarBitValue = 0x00000000 */
while (1)
{
}
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,71 +0,0 @@
/**
@page CortexM3_BitBand CortexM3 BitBand example
@verbatim
******************** (C) COPYRIGHT 2012 STMicroelectronics *******************
* @file CortexM3/BitBand/readme.txt
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Description of the CortexM3 BitBand example.
******************************************************************************
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
@endverbatim
@par Example Description
This example shows how to use CortexM3 Bit-Band access to perform atomic
read-modify-write and read operations on a variable in SRAM.
@par Directory contents
- CortexM3/BitBand/stm32f2xx_conf.h Library Configuration file
- CortexM3/BitBand/stm32f2xx_it.c Interrupt handlers
- CortexM3/BitBand/stm32f2xx_it.h Interrupt handlers header file
- CortexM3/BitBand/main.c Main program
- CortexM3/BitBand/system_stm32f2xx.c STM32F2xx system source file
@note The "system_stm32f2xx.c" is generated by an automatic clock configuration
tool and can be easily customized to your own configuration.
To select different clock setup, use the "STM32F2xx_Clock_Configuration_V1.0.0.xls"
provided with the AN3362 package available on <a href="http://www.st.com/internet/mcu/family/141.jsp"> ST Microcontrollers </a>
@par Hardware and Software environment
- This example runs on STM32F2xx Devices.
- This example has been tested with STM322xG-EVAL RevB and can be easily tailored
to any other development board
@par How to use it ?
In order to make the program work, you must do the following :
- Copy all source files from this example folder to the template folder under
Project\STM32F2xx_StdPeriph_Template
- Open your preferred toolchain
- Rebuild all files and load your image into target memory
- Run the example
* <h3><center>&copy; COPYRIGHT STMicroelectronics</center></h3>
*/
@@ -1,94 +0,0 @@
/**
******************************************************************************
* @file CortexM3/BitBand/stm32f2xx_conf.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Library configuration file.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_CONF_H
#define __STM32F2xx_CONF_H
/* Includes ------------------------------------------------------------------*/
/* Uncomment the line below to enable peripheral header file inclusion */
#include "stm32f2xx_adc.h"
#include "stm32f2xx_can.h"
#include "stm32f2xx_crc.h"
#include "stm32f2xx_cryp.h"
#include "stm32f2xx_dac.h"
#include "stm32f2xx_dbgmcu.h"
#include "stm32f2xx_dcmi.h"
#include "stm32f2xx_dma.h"
#include "stm32f2xx_exti.h"
#include "stm32f2xx_flash.h"
#include "stm32f2xx_fsmc.h"
#include "stm32f2xx_hash.h"
#include "stm32f2xx_gpio.h"
#include "stm32f2xx_i2c.h"
#include "stm32f2xx_iwdg.h"
#include "stm32f2xx_pwr.h"
#include "stm32f2xx_rcc.h"
#include "stm32f2xx_rng.h"
#include "stm32f2xx_rtc.h"
#include "stm32f2xx_sdio.h"
#include "stm32f2xx_spi.h"
#include "stm32f2xx_syscfg.h"
#include "stm32f2xx_tim.h"
#include "stm32f2xx_usart.h"
#include "stm32f2xx_wwdg.h"
#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* If an external clock source is used, then the value of the following define
should be set to the value of the external clock source, else, if no external
clock is used, keep this define commented */
/*#define I2S_EXTERNAL_CLOCK_VAL 12288000 */ /* Value of the external clock in Hz */
/* Uncomment the line below to expanse the "assert_param" macro in the
Standard Peripheral Library drivers code */
/* #define USE_FULL_ASSERT 1 */
/* Exported macro ------------------------------------------------------------*/
#ifdef USE_FULL_ASSERT
/**
* @brief The assert_param macro is used for function's parameters check.
* @param expr: If expr is false, it calls assert_failed function
* which reports the name of the source file and the source
* line number of the call that failed.
* If expr is true, it returns no value.
* @retval None
*/
#define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__))
/* Exported functions ------------------------------------------------------- */
void assert_failed(uint8_t* file, uint32_t line);
#else
#define assert_param(expr) ((void)0)
#endif /* USE_FULL_ASSERT */
#endif /* __STM32F2xx_CONF_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,173 +0,0 @@
/**
******************************************************************************
* @file CortexM3/BitBand/stm32f2xx_it.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main Interrupt Service Routines.
* This file provides template for all exceptions handler and
* peripherals interrupt service routine.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx_it.h"
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup CortexM3_BitBand
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/******************************************************************************/
/* Cortex-M3 Processor Exceptions Handlers */
/******************************************************************************/
/**
* @brief This function handles NMI exception.
* @param None
* @retval None
*/
void NMI_Handler(void)
{
}
/**
* @brief This function handles Hard Fault exception.
* @param None
* @retval None
*/
void HardFault_Handler(void)
{
/* Go to infinite loop when Hard Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Memory Manage exception.
* @param None
* @retval None
*/
void MemManage_Handler(void)
{
/* Go to infinite loop when Memory Manage exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Bus Fault exception.
* @param None
* @retval None
*/
void BusFault_Handler(void)
{
/* Go to infinite loop when Bus Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Usage Fault exception.
* @param None
* @retval None
*/
void UsageFault_Handler(void)
{
/* Go to infinite loop when Usage Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles SVCall exception.
* @param None
* @retval None
*/
void SVC_Handler(void)
{
}
/**
* @brief This function handles Debug Monitor exception.
* @param None
* @retval None
*/
void DebugMon_Handler(void)
{
}
/**
* @brief This function handles PendSVC exception.
* @param None
* @retval None
*/
void PendSV_Handler(void)
{
}
/**
* @brief This function handles SysTick Handler.
* @param None
* @retval None
*/
void SysTick_Handler(void)
{
}
/******************************************************************************/
/* STM32F2xx Peripherals Interrupt Handlers */
/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */
/* available peripheral interrupt handler's name please refer to the startup */
/* file (startup_stm32f2xx.s). */
/******************************************************************************/
/**
* @brief This function handles PPP interrupt request.
* @param None
* @retval None
*/
/*void PPP_IRQHandler(void)
{
}*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,60 +0,0 @@
/**
******************************************************************************
* @file CortexM3/BitBand/stm32f2xx_it.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief This file contains the headers of the interrupt handlers.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_IT_H
#define __STM32F2xx_IT_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
void NMI_Handler(void);
void HardFault_Handler(void);
void MemManage_Handler(void);
void BusFault_Handler(void);
void UsageFault_Handler(void);
void SVC_Handler(void);
void DebugMon_Handler(void);
void PendSV_Handler(void);
void SysTick_Handler(void);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F2xx_IT_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,542 +0,0 @@
/**
******************************************************************************
* @file system_stm32f2xx.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File.
* This file contains the system clock configuration for STM32F2xx devices,
* and is generated by the clock configuration tool
* "STM32f2xx_Clock_Configuration_V1.0.0.xls"
*
* 1. This file provides two functions and one global variable to be called from
* user application:
* - SystemInit(): Setups the system clock (System clock source, PLL Multiplier
* and Divider factors, AHB/APBx prescalers and Flash settings),
* depending on the configuration made in the clock xls tool.
* This function is called at startup just after reset and
* before branch to main program. This call is made inside
* the "startup_stm32f2xx.s" file.
*
* - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
* by the user application to setup the SysTick
* timer or configure other parameters.
*
* - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
* be called whenever the core clock is changed
* during program execution.
*
* 2. After each device reset the HSI (16 MHz) is used as system clock source.
* Then SystemInit() function is called, in "startup_stm32f2xx.s" file, to
* configure the system clock before to branch to main program.
*
* 3. If the system clock source selected by user fails to startup, the SystemInit()
* function will do nothing and HSI still used as system clock source. User can
* add some code to deal with this issue inside the SetSysClock() function.
*
* 4. The default value of HSE crystal is set to 25MHz, refer to "HSE_VALUE" define
* in "stm32f2xx.h" file. When HSE is used as system clock source, directly or
* through PLL, and you are using different crystal you have to adapt the HSE
* value to your own configuration.
*
* 5. This file configures the system clock as follows:
*=============================================================================
*=============================================================================
* Supported STM32F2xx device revision | Rev B and Y
*-----------------------------------------------------------------------------
* System Clock source | PLL (HSE)
*-----------------------------------------------------------------------------
* SYSCLK(Hz) | 120000000
*-----------------------------------------------------------------------------
* HCLK(Hz) | 120000000
*-----------------------------------------------------------------------------
* AHB Prescaler | 1
*-----------------------------------------------------------------------------
* APB1 Prescaler | 4
*-----------------------------------------------------------------------------
* APB2 Prescaler | 2
*-----------------------------------------------------------------------------
* HSE Frequency(Hz) | 25000000
*-----------------------------------------------------------------------------
* PLL_M | 25
*-----------------------------------------------------------------------------
* PLL_N | 240
*-----------------------------------------------------------------------------
* PLL_P | 2
*-----------------------------------------------------------------------------
* PLL_Q | 5
*-----------------------------------------------------------------------------
* PLLI2S_N | NA
*-----------------------------------------------------------------------------
* PLLI2S_R | NA
*-----------------------------------------------------------------------------
* I2S input clock | NA
*-----------------------------------------------------------------------------
* VDD(V) | 3.3
*-----------------------------------------------------------------------------
* Flash Latency(WS) | 3
*-----------------------------------------------------------------------------
* Prefetch Buffer | ON
*-----------------------------------------------------------------------------
* Instruction cache | ON
*-----------------------------------------------------------------------------
* Data cache | ON
*-----------------------------------------------------------------------------
* Require 48MHz for USB OTG FS, | Enabled
* SDIO and RNG clock |
*-----------------------------------------------------------------------------
*=============================================================================
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/** @addtogroup CMSIS
* @{
*/
/** @addtogroup stm32f2xx_system
* @{
*/
/** @addtogroup STM32F2xx_System_Private_Includes
* @{
*/
#include "stm32f2xx.h"
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Defines
* @{
*/
/*!< Uncomment the following line if you need to use external SRAM mounted
on STM322xG_EVAL board as data memory */
/* #define DATA_IN_ExtSRAM */
/*!< Uncomment the following line if you need to relocate your vector Table in
Internal SRAM. */
/* #define VECT_TAB_SRAM */
#define VECT_TAB_OFFSET 0x00 /*!< Vector Table base offset field.
This value must be a multiple of 0x200. */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N */
#define PLL_M 25
#define PLL_N 240
/* SYSCLK = PLL_VCO / PLL_P */
#define PLL_P 2
/* USB OTG FS, SDIO and RNG Clock = PLL_VCO / PLLQ */
#define PLL_Q 5
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Macros
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Variables
* @{
*/
uint32_t SystemCoreClock = 120000000;
__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_FunctionPrototypes
* @{
*/
static void SetSysClock(void);
#ifdef DATA_IN_ExtSRAM
static void SystemInit_ExtMemCtl(void);
#endif /* DATA_IN_ExtSRAM */
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Functions
* @{
*/
/**
* @brief Setup the microcontroller system
* Initialize the Embedded Flash Interface, the PLL and update the
* SystemFrequency variable.
* @param None
* @retval None
*/
void SystemInit(void)
{
/* Reset the RCC clock configuration to the default reset state ------------*/
/* Set HSION bit */
RCC->CR |= (uint32_t)0x00000001;
/* Reset CFGR register */
RCC->CFGR = 0x00000000;
/* Reset HSEON, CSSON and PLLON bits */
RCC->CR &= (uint32_t)0xFEF6FFFF;
/* Reset PLLCFGR register */
RCC->PLLCFGR = 0x24003010;
/* Reset HSEBYP bit */
RCC->CR &= (uint32_t)0xFFFBFFFF;
/* Disable all interrupts */
RCC->CIR = 0x00000000;
#ifdef DATA_IN_ExtSRAM
SystemInit_ExtMemCtl();
#endif /* DATA_IN_ExtSRAM */
/* Configure the System clock source, PLL Multiplier and Divider factors,
AHB/APBx prescalers and Flash settings ----------------------------------*/
SetSysClock();
/* Configure the Vector Table location add offset address ------------------*/
#ifdef VECT_TAB_SRAM
SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */
#else
SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */
#endif
}
/**
* @brief Update SystemCoreClock variable according to Clock Register Values.
* The SystemCoreClock variable contains the core clock (HCLK), it can
* be used by the user application to setup the SysTick timer or configure
* other parameters.
*
* @note Each time the core clock (HCLK) changes, this function must be called
* to update SystemCoreClock variable value. Otherwise, any configuration
* based on this variable will be incorrect.
*
* @note - The system frequency computed by this function is not the real
* frequency in the chip. It is calculated based on the predefined
* constant and the selected clock source:
*
* - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*)
*
* - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**)
*
* - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**)
* or HSI_VALUE(*) multiplied/divided by the PLL factors.
*
* (*) HSI_VALUE is a constant defined in stm32f2xx.h file (default value
* 16 MHz) but the real value may vary depending on the variations
* in voltage and temperature.
*
* (**) HSE_VALUE is a constant defined in stm32f2xx.h file (default value
* 25 MHz), user has to ensure that HSE_VALUE is same as the real
* frequency of the crystal used. Otherwise, this function may
* have wrong result.
*
* - The result of this function could be not correct when using fractional
* value for HSE crystal.
*
* @param None
* @retval None
*/
void SystemCoreClockUpdate(void)
{
uint32_t tmp = 0, pllvco = 0, pllp = 2, pllsource = 0, pllm = 2;
/* Get SYSCLK source -------------------------------------------------------*/
tmp = RCC->CFGR & RCC_CFGR_SWS;
switch (tmp)
{
case 0x00: /* HSI used as system clock source */
SystemCoreClock = HSI_VALUE;
break;
case 0x04: /* HSE used as system clock source */
SystemCoreClock = HSE_VALUE;
break;
case 0x08: /* PLL used as system clock source */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N
SYSCLK = PLL_VCO / PLL_P
*/
pllsource = (RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) >> 22;
pllm = RCC->PLLCFGR & RCC_PLLCFGR_PLLM;
if (pllsource != 0)
{
/* HSE used as PLL clock source */
pllvco = (HSE_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
}
else
{
/* HSI used as PLL clock source */
pllvco = (HSI_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
}
pllp = (((RCC->PLLCFGR & RCC_PLLCFGR_PLLP) >>16) + 1 ) *2;
SystemCoreClock = pllvco/pllp;
break;
default:
SystemCoreClock = HSI_VALUE;
break;
}
/* Compute HCLK frequency --------------------------------------------------*/
/* Get HCLK prescaler */
tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)];
/* HCLK frequency */
SystemCoreClock >>= tmp;
}
/**
* @brief Configures the System clock source, PLL Multiplier and Divider factors,
* AHB/APBx prescalers and Flash settings
* @Note This function should be called only once the RCC clock configuration
* is reset to the default reset state (done in SystemInit() function).
* @param None
* @retval None
*/
static void SetSysClock(void)
{
/******************************************************************************/
/* PLL (clocked by HSE) used as System clock source */
/******************************************************************************/
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
/* Enable HSE */
RCC->CR |= ((uint32_t)RCC_CR_HSEON);
/* Wait till HSE is ready and if Time out is reached exit */
do
{
HSEStatus = RCC->CR & RCC_CR_HSERDY;
StartUpCounter++;
} while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
if ((RCC->CR & RCC_CR_HSERDY) != RESET)
{
HSEStatus = (uint32_t)0x01;
}
else
{
HSEStatus = (uint32_t)0x00;
}
if (HSEStatus == (uint32_t)0x01)
{
/* HCLK = SYSCLK / 1*/
RCC->CFGR |= RCC_CFGR_HPRE_DIV1;
/* PCLK2 = HCLK / 2*/
RCC->CFGR |= RCC_CFGR_PPRE2_DIV2;
/* PCLK1 = HCLK / 4*/
RCC->CFGR |= RCC_CFGR_PPRE1_DIV4;
/* Configure the main PLL */
RCC->PLLCFGR = PLL_M | (PLL_N << 6) | (((PLL_P >> 1) -1) << 16) |
(RCC_PLLCFGR_PLLSRC_HSE) | (PLL_Q << 24);
/* Enable the main PLL */
RCC->CR |= RCC_CR_PLLON;
/* Wait till the main PLL is ready */
while((RCC->CR & RCC_CR_PLLRDY) == 0)
{
}
/* Configure Flash prefetch, Instruction cache, Data cache and wait state */
FLASH->ACR = FLASH_ACR_PRFTEN | FLASH_ACR_ICEN | FLASH_ACR_DCEN | FLASH_ACR_LATENCY_3WS;
/* Select the main PLL as system clock source */
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW));
RCC->CFGR |= RCC_CFGR_SW_PLL;
/* Wait till the main PLL is used as system clock source */
while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS ) != RCC_CFGR_SWS_PLL);
{
}
}
else
{ /* If HSE fails to start-up, the application will have wrong clock
configuration. User can add here some code to deal with this error */
}
}
/**
* @brief Setup the external memory controller. Called in startup_stm32f2xx.s
* before jump to __main
* @param None
* @retval None
*/
#ifdef DATA_IN_ExtSRAM
/**
* @brief Setup the external memory controller.
* Called in startup_stm32f2xx.s before jump to main.
* This function configures the external SRAM mounted on STM322xG_EVAL board
* This SRAM will be used as program data memory (including heap and stack).
* @param None
* @retval None
*/
void SystemInit_ExtMemCtl(void)
{
/*-- GPIOs Configuration -----------------------------------------------------*/
/*
+-------------------+--------------------+------------------+------------------+
+ SRAM pins assignment +
+-------------------+--------------------+------------------+------------------+
| PD0 <-> FSMC_D2 | PE0 <-> FSMC_NBL0 | PF0 <-> FSMC_A0 | PG0 <-> FSMC_A10 |
| PD1 <-> FSMC_D3 | PE1 <-> FSMC_NBL1 | PF1 <-> FSMC_A1 | PG1 <-> FSMC_A11 |
| PD4 <-> FSMC_NOE | PE7 <-> FSMC_D4 | PF2 <-> FSMC_A2 | PG2 <-> FSMC_A12 |
| PD5 <-> FSMC_NWE | PE8 <-> FSMC_D5 | PF3 <-> FSMC_A3 | PG3 <-> FSMC_A13 |
| PD8 <-> FSMC_D13 | PE9 <-> FSMC_D6 | PF4 <-> FSMC_A4 | PG4 <-> FSMC_A14 |
| PD9 <-> FSMC_D14 | PE10 <-> FSMC_D7 | PF5 <-> FSMC_A5 | PG5 <-> FSMC_A15 |
| PD10 <-> FSMC_D15 | PE11 <-> FSMC_D8 | PF12 <-> FSMC_A6 | PG9 <-> FSMC_NE2 |
| PD11 <-> FSMC_A16 | PE12 <-> FSMC_D9 | PF13 <-> FSMC_A7 |------------------+
| PD12 <-> FSMC_A17 | PE13 <-> FSMC_D10 | PF14 <-> FSMC_A8 |
| PD14 <-> FSMC_D0 | PE14 <-> FSMC_D11 | PF15 <-> FSMC_A9 |
| PD15 <-> FSMC_D1 | PE15 <-> FSMC_D12 |------------------+
+-------------------+--------------------+
*/
/* Enable GPIOD, GPIOE, GPIOF and GPIOG interface clock */
RCC->AHB1ENR = 0x00000078;
/* Connect PDx pins to FSMC Alternate function */
GPIOD->AFR[0] = 0x00cc00cc;
GPIOD->AFR[1] = 0xcc0ccccc;
/* Configure PDx pins in Alternate function mode */
GPIOD->MODER = 0xa2aa0a0a;
/* Configure PDx pins speed to 100 MHz */
GPIOD->OSPEEDR = 0xf3ff0f0f;
/* Configure PDx pins Output type to push-pull */
GPIOD->OTYPER = 0x00000000;
/* No pull-up, pull-down for PDx pins */
GPIOD->PUPDR = 0x00000000;
/* Connect PEx pins to FSMC Alternate function */
GPIOE->AFR[0] = 0xc00000cc;
GPIOE->AFR[1] = 0xcccccccc;
/* Configure PEx pins in Alternate function mode */
GPIOE->MODER = 0xaaaa800a;
/* Configure PEx pins speed to 100 MHz */
GPIOE->OSPEEDR = 0xffffc00f;
/* Configure PEx pins Output type to push-pull */
GPIOE->OTYPER = 0x00000000;
/* No pull-up, pull-down for PEx pins */
GPIOE->PUPDR = 0x00000000;
/* Connect PFx pins to FSMC Alternate function */
GPIOF->AFR[0] = 0x00cccccc;
GPIOF->AFR[1] = 0xcccc0000;
/* Configure PFx pins in Alternate function mode */
GPIOF->MODER = 0xaa000aaa;
/* Configure PFx pins speed to 100 MHz */
GPIOF->OSPEEDR = 0xff000fff;
/* Configure PFx pins Output type to push-pull */
GPIOF->OTYPER = 0x00000000;
/* No pull-up, pull-down for PFx pins */
GPIOF->PUPDR = 0x00000000;
/* Connect PGx pins to FSMC Alternate function */
GPIOG->AFR[0] = 0x00cccccc;
GPIOG->AFR[1] = 0x000000c0;
/* Configure PGx pins in Alternate function mode */
GPIOG->MODER = 0x00080aaa;
/* Configure PGx pins speed to 100 MHz */
GPIOG->OSPEEDR = 0x000c0fff;
/* Configure PGx pins Output type to push-pull */
GPIOG->OTYPER = 0x00000000;
/* No pull-up, pull-down for PGx pins */
GPIOG->PUPDR = 0x00000000;
/*-- FSMC Configuration ------------------------------------------------------*/
/* Enable the FSMC interface clock */
RCC->AHB3ENR = 0x00000001;
/* Configure and enable Bank1_SRAM2 */
FSMC_Bank1->BTCR[2] = 0x00001015;
FSMC_Bank1->BTCR[3] = 0x00010400;
FSMC_Bank1E->BWTR[2] = 0x0fffffff;
/*
Bank1_SRAM2 is configured as follow:
p.FSMC_AddressSetupTime = 0;
p.FSMC_AddressHoldTime = 0;
p.FSMC_DataSetupTime = 4;
p.FSMC_BusTurnAroundDuration = 1;
p.FSMC_CLKDivision = 0;
p.FSMC_DataLatency = 0;
p.FSMC_AccessMode = FSMC_AccessMode_A;
FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM2;
FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;
FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_PSRAM;
FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b;
FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_AsynchronousWait = FSMC_AsynchronousWait_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState;
FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;
FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;
FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p;
FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;
*/
}
#endif /* DATA_IN_ExtSRAM */
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,249 +0,0 @@
/*
Default linker script for STM32F2xx_1024K_128K
*/
/* include the common STM32F2xx sub-script */
/* Common part of the linker scripts for STM32F devices*/
/* default stack sizes.
These are used by the startup in order to allocate stacks for the different modes.
*/
__Stack_Size = 1024 ;
PROVIDE ( _Stack_Size = __Stack_Size ) ;
__Stack_Init = _estack - __Stack_Size ;
/*"PROVIDE" allows to easily override these values from an object file or the commmand line.*/
PROVIDE ( _Stack_Init = __Stack_Init ) ;
/*
There will be a link error if there is not this amount of RAM free at the end.
*/
_Minimum_Stack_Size = 0x100 ;
/* include the memory spaces definitions sub-script */
/*
Linker subscript for STM32F2xx definitions with 1024 Flash and 128 Onchip SRAM */
/* Memory Spaces Definitions */
MEMORY
{
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 112K
FLASH (rx) : ORIGIN = 0x8000000, LENGTH = 1024K
FLASHB1 (rx) : ORIGIN = 0x00000000, LENGTH = 0
EXTMEMB0 (rx) : ORIGIN = 0x00000000, LENGTH = 0
EXTMEMB1 (rx) : ORIGIN = 0x00000000, LENGTH = 0
EXTMEMB2 (rx) : ORIGIN = 0x00000000, LENGTH = 0
EXTMEMB3 (rx) : ORIGIN = 0x00000000, LENGTH = 0
MEMORY_ARRAY (xrw) : ORIGIN = 0x20002000, LENGTH = 32
}
/* higher address of the user mode stack */
_estack = 0x2001C000;
/* include the sections management sub-script for FLASH mode */
/* Sections Definitions */
SECTIONS
{
/* for Cortex devices, the beginning of the startup code is stored in the .isr_vector section, which goes to FLASH */
.isr_vector :
{
. = ALIGN(4);
KEEP(*(.isr_vector)) /* Startup code */
. = ALIGN(4);
} >FLASH
/* for some STRx devices, the beginning of the startup code is stored in the .flashtext section, which goes to FLASH */
.flashtext :
{
. = ALIGN(4);
*(.flashtext) /* Startup code */
. = ALIGN(4);
} >FLASH
/* the program code is stored in the .text section, which goes to Flash */
.text :
{
. = ALIGN(4);
*(.text) /* remaining code */
*(.text.*) /* remaining code */
*(.rodata) /* read-only data (constants) */
*(.rodata*)
*(.glue_7)
*(.glue_7t)
. = ALIGN(4);
_etext = .;
/* This is used by the startup in order to initialize the .data secion */
_sidata = _etext;
} >FLASH
/* MEMORY_ARRAY */
.ROarraySection :
{
*(.ROarraySection)
} >MEMORY_ARRAY
/* This is the initialized data section
The program executes knowing that the data is in the RAM
but the loader puts the initial values in the FLASH (inidata).
It is one task of the startup to copy the initial values from FLASH to RAM. */
.data : AT ( _sidata )
{
. = ALIGN(4);
/* This is used by the startup in order to initialize the .data secion */
_sdata = . ;
*(.data)
*(.data.*)
. = ALIGN(4);
/* This is used by the startup in order to initialize the .data secion */
_edata = . ;
} >RAM
/* This is the uninitialized data section */
.bss :
{
. = ALIGN(4);
/* This is used by the startup in order to initialize the .bss secion */
_sbss = .;
*(.bss)
*(COMMON)
. = ALIGN(4);
/* This is used by the startup in order to initialize the .bss secion */
_ebss = . ;
} >RAM
PROVIDE ( end = _ebss );
PROVIDE ( _end = _ebss );
/* This is the user stack section
This is just to check that there is enough RAM left for the User mode stack
It should generate an error if it's full.
*/
._usrstack :
{
. = ALIGN(4);
_susrstack = . ;
. = . + _Minimum_Stack_Size ;
. = ALIGN(4);
_eusrstack = . ;
} >RAM
/* this is the FLASH Bank1 */
/* the C or assembly source must explicitly place the code or data there
using the "section" attribute */
.b1text :
{
*(.b1text) /* remaining code */
*(.b1rodata) /* read-only data (constants) */
*(.b1rodata*)
} >FLASHB1
/* this is the EXTMEM */
/* the C or assembly source must explicitly place the code or data there
using the "section" attribute */
/* EXTMEM Bank0 */
.eb0text :
{
*(.eb0text) /* remaining code */
*(.eb0rodata) /* read-only data (constants) */
*(.eb0rodata*)
} >EXTMEMB0
/* EXTMEM Bank1 */
.eb1text :
{
*(.eb1text) /* remaining code */
*(.eb1rodata) /* read-only data (constants) */
*(.eb1rodata*)
} >EXTMEMB1
/* EXTMEM Bank2 */
.eb2text :
{
*(.eb2text) /* remaining code */
*(.eb2rodata) /* read-only data (constants) */
*(.eb2rodata*)
} >EXTMEMB2
/* EXTMEM Bank0 */
.eb3text :
{
*(.eb3text) /* remaining code */
*(.eb3rodata) /* read-only data (constants) */
*(.eb3rodata*)
} >EXTMEMB3
/* after that it's only debugging information. */
/* remove the debugging information from the standard libraries */
DISCARD :
{
libc.a ( * )
libm.a ( * )
libgcc.a ( * )
}
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
/* DWARF debug sections.
Symbols in the DWARF debugging sections are relative to the beginning
of the section so we begin them at 0. */
/* DWARF 1 */
.debug 0 : { *(.debug) }
.line 0 : { *(.line) }
/* GNU DWARF 1 extensions */
.debug_srcinfo 0 : { *(.debug_srcinfo) }
.debug_sfnames 0 : { *(.debug_sfnames) }
/* DWARF 1.1 and DWARF 2 */
.debug_aranges 0 : { *(.debug_aranges) }
.debug_pubnames 0 : { *(.debug_pubnames) }
/* DWARF 2 */
.debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_line 0 : { *(.debug_line) }
.debug_frame 0 : { *(.debug_frame) }
.debug_str 0 : { *(.debug_str) }
.debug_loc 0 : { *(.debug_loc) }
.debug_macinfo 0 : { *(.debug_macinfo) }
/* SGI/MIPS DWARF 2 extensions */
.debug_weaknames 0 : { *(.debug_weaknames) }
.debug_funcnames 0 : { *(.debug_funcnames) }
.debug_typenames 0 : { *(.debug_typenames) }
.debug_varnames 0 : { *(.debug_varnames) }
}
@@ -1,174 +0,0 @@
/*
*****************************************************************************
**
** File : stm32_flash.ld
**
** Abstract : Linker script for STM32F207IG Device with
** 1MByte FLASH, 128KByte SRAM
**
** Set heap size, stack size and stack location according
** to application requirements.
**
** Set memory bank area and size if external memory is used.
**
** Target : STMicroelectronics STM32
**
** Environment : Atollic TrueSTUDIO(R)
**
** Distribution: The file is distributed “as is,” without any warranty
** of any kind.
**
** (c)Copyright Atollic AB.
** You may use this file as-is or modify it according to the needs of your
** project. Distribution of this file (unmodified or modified) is not
** permitted. Atollic AB permit registered Atollic TrueSTUDIO(R) users the
** rights to distribute the assembled, compiled & linked contents of this
** file as part of an application binary file, provided that it is built
** using the Atollic TrueSTUDIO(R) toolchain.
**
*****************************************************************************
*/
/* Entry Point */
ENTRY(Reset_Handler)
/* Highest address of the user mode stack */
_estack = 0x2001C000; /* end of 112K SRAM */
/* Generate a link error if heap and stack don't fit into RAM */
_Min_Heap_Size = 0; /* required amount of heap */
_Min_Stack_Size = 0x200; /* required amount of stack */
/* Specify the memory areas */
MEMORY
{
FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 1024K
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 112K
MEMORY_B1 (rx) : ORIGIN = 0x60000000, LENGTH = 0K
MEMORY_ARRAY (rw) : ORIGIN = 0x20002000, LENGTH = 32
}
/* Define output sections */
SECTIONS
{
/* The startup code goes first into FLASH */
.isr_vector :
{
. = ALIGN(4);
KEEP(*(.isr_vector)) /* Startup code */
. = ALIGN(4);
} >FLASH
/* The program code and other data goes into FLASH */
.text :
{
. = ALIGN(4);
*(.text) /* .text sections (code) */
*(.text*) /* .text* sections (code) */
*(.rodata) /* .rodata sections (constants, strings, etc.) */
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
*(.glue_7) /* glue arm to thumb code */
*(.glue_7t) /* glue thumb to arm code */
KEEP (*(.init))
KEEP (*(.fini))
. = ALIGN(4);
_etext = .; /* define a global symbols at end of code */
} >FLASH
.ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
.ARM : {
__exidx_start = .;
*(.ARM.exidx*)
__exidx_end = .;
} >FLASH
.ARM.attributes : { *(.ARM.attributes) } > FLASH
.preinit_array :
{
PROVIDE_HIDDEN (__preinit_array_start = .);
KEEP (*(.preinit_array*))
PROVIDE_HIDDEN (__preinit_array_end = .);
} >FLASH
.init_array :
{
PROVIDE_HIDDEN (__init_array_start = .);
KEEP (*(SORT(.init_array.*)))
KEEP (*(.init_array*))
PROVIDE_HIDDEN (__init_array_end = .);
} >FLASH
.fini_array :
{
PROVIDE_HIDDEN (__fini_array_start = .);
KEEP (*(.fini_array*))
KEEP (*(SORT(.fini_array.*)))
PROVIDE_HIDDEN (__fini_array_end = .);
} >FLASH
/* used by the startup to initialize data */
_sidata = .;
/* Initialized data sections goes into RAM, load LMA copy after code */
.data : AT ( _sidata )
{
. = ALIGN(4);
_sdata = .; /* create a global symbol at data start */
*(.data) /* .data sections */
*(.data*) /* .data* sections */
. = ALIGN(4);
_edata = .; /* define a global symbol at data end */
} >RAM
/* Uninitialized data section */
. = ALIGN(4);
.bss :
{
/* This is used by the startup in order to initialize the .bss secion */
_sbss = .; /* define a global symbol at bss start */
__bss_start__ = _sbss;
*(.bss)
*(.bss*)
*(COMMON)
. = ALIGN(4);
_ebss = .; /* define a global symbol at bss end */
__bss_end__ = _ebss;
} >RAM
PROVIDE ( end = _ebss );
PROVIDE ( _end = _ebss );
/* User_heap_stack section, used to check that there is enough RAM left */
._user_heap_stack :
{
. = ALIGN(4);
. = . + _Min_Heap_Size;
. = . + _Min_Stack_Size;
. = ALIGN(4);
} >RAM
/* MEMORY_bank1 section, code must be located here explicitly */
/* Example: extern int foo(void) __attribute__ ((section (".mb1text"))); */
.memory_b1_text :
{
*(.mb1text) /* .mb1text sections (code) */
*(.mb1text*) /* .mb1text* sections (code) */
*(.mb1rodata) /* read-only data (constants) */
*(.mb1rodata*)
} >MEMORY_B1
/* Remove information from the standard libraries */
/DISCARD/ :
{
libc.a ( * )
libm.a ( * )
libgcc.a ( * )
}
.ROarraySection : {*(.ROarraySection)} >MEMORY_ARRAY
}
@@ -1,130 +0,0 @@
/**
******************************************************************************
* @file CortexM3/MPU/main.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main program body
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32_mpu.h"
#include "stm322xg_eval.h"
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup CortexM3_MPU
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define ACCESS_PERMISSION
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
void Delay (uint32_t nCount);
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f2xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f2xx.c file
*/
/* Configure LED1 and LED2 */
STM_EVAL_LEDInit(LED1);
STM_EVAL_LEDInit(LED2);
/* Set MPU regions */
MPU_Config();
#ifdef ACCESS_PERMISSION
MPU_AccessPermConfig();
#endif
/* Infinite loop */
while (1)
{
/* Toggle LED1 */
STM_EVAL_LEDToggle(LED1);
/* Insert a delay */
Delay(0x7FFFF);
}
}
/**
* @brief Inserts a delay time.
* @param nCount: specifies the delay time length.
* @retval None
*/
void Delay(__IO uint32_t nCount)
{
/* Decrement nCount value */
while (nCount != 0)
{
nCount--;
}
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,99 +0,0 @@
/**
@page CortexM3_MPU CortexM3 MPU example
@verbatim
******************** (C) COPYRIGHT 2012 STMicroelectronics *******************
* @file CortexM3/MPU/readme.txt
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Description of the CortexM3 MPU example.
******************************************************************************
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
@endverbatim
@par Example Description
This example presents the MPU features on STM32F2xx devices and it can be easily
ported to any other STM32 device supporting MPU.
The example purpose is to configure a memory region as privileged read only region
and tries to perform read and write operation in different mode.
If the access is permitted LED1 is toggling. If the access is not permitted,
a memory management fault is generated and LED2 is ON.
To generate an MPU memory fault exception due to an access right error, uncomment
the following line "PrivilegedReadOnlyArray[0] = 'e';" in the "stm32_mpu.c" file.
@par Directory contents
- CortexM3/MPU/stm32f2xx_conf.h Library Configuration file
- CortexM3/MPU/stm32f2xx_it.c Interrupt handlers
- CortexM3/MPU/stm32f2xx_it.h Header for stm32f2xx_it.c
- CortexM3/MPU/main.c Main program
- CortexM3/MPU/system_stm32f2xx.c STM32F2xx system source file
- CortexM3/MPU/stm32_mpu.c Cortex-M3 MPU regions Access rights file
@note The "system_stm32f2xx.c" is generated by an automatic clock configuration
tool and can be easily customized to your own configuration.
To select different clock setup, use the "STM32F2xx_Clock_Configuration_V1.0.0.xls"
provided with the AN3362 package available on <a href="http://www.st.com/internet/mcu/family/141.jsp"> ST Microcontrollers </a>
@par Hardware and Software environment
- This example runs on STM32F2xx Devices.
- This example has been tested with STM322xG-EVAL RevB and can be easily tailored
to any other development board
@par How to use it ?
In order to make the program work, you must do the following :
- Copy all source files from this example folder to the template folder under
Project\STM32F2xx_StdPeriph_Template
- Open your preferred toolchain and setup your project configuration as follows
- Add the required example files
- stm32_mpu.c
<ul>
- For RIDE and TrueSTUDIO toolchains you have to follow these instructions
<li> RIDE
- In the Application options -> script menu, set "Use Default Script File"
to "No" and use "stm32F_flash_ROAarray.ld" as Script File.
This linker is configured for STM32F2xx. It should be updated to use it
with other STM32 devices.
<li> TrueSTUDIO
- In the project properties window, select C/C++ Build->settings node then
the C Linker->General node and use "stm32F_flash_ROAarray.ld" as Script File.
This linker is configured for STM32F2xx. It should be updated to use it
with other STM32 devices.
</ul>
- Rebuild all files and load your image into target memory
- Run the example
* <h3><center>&copy; COPYRIGHT STMicroelectronics</center></h3>
*/
@@ -1,126 +0,0 @@
/**
******************************************************************************
* @file CortexM3/MPU/stm32_mpu.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Access rights configuration using Cortex-M3 MPU regions.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32_mpu.h"
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup CortexM3_MPU
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define ARRAY_ADDRESS_START (0x20002000UL)
#define ARRAY_SIZE (0x09UL << 0UL)
#define ARRAY_REGION_NUMBER (0x03UL << MPU_RNR_REGION_Pos)
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
#if defined ( __CC_ARM )
uint8_t PrivilegedReadOnlyArray[32] __attribute__((at(0x20002000)));
#elif defined ( __ICCARM__ )
#pragma location=0x20002000
__no_init uint8_t PrivilegedReadOnlyArray[32];
#elif defined ( __GNUC__ )
uint8_t PrivilegedReadOnlyArray[32] __attribute__((section(".ROarraySection")));
#elif defined ( __TASKING__ )
uint8_t PrivilegedReadOnlyArray[32] __at(0x20002000);
#endif
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/**
* @brief Configures the main MPU regions.
* @param None
* @retval None
*/
void MPU_Config(void)
{
/* Disable MPU */
MPU->CTRL &= ~MPU_CTRL_ENABLE_Msk;
/* Configure RAM region as Region N°0, 8kB of size and R/W region */
MPU->RNR = RAM_REGION_NUMBER;
MPU->RBAR = RAM_ADDRESS_START;
MPU->RASR = RAM_SIZE | portMPU_REGION_READ_WRITE;
/* Configure FLASH region as REGION N°1, 1MB of size and R/W region */
MPU->RNR = FLASH_REGION_NUMBER;
MPU->RBAR = FLASH_ADDRESS_START;
MPU->RASR = FLASH_SIZE | portMPU_REGION_READ_WRITE;
/* Configure Peripheral region as REGION N°2, 0.5GB of size, R/W and Execute
Never region */
MPU->RNR = PERIPH_REGION_NUMBER;
MPU->RBAR = PERIPH_ADDRESS_START;
MPU->RASR = PERIPH_SIZE |portMPU_REGION_READ_WRITE | MPU_RASR_XN_Msk;
/* Enable the memory fault exception */
SCB->SHCSR |= SCB_SHCSR_MEMFAULTENA_Msk;
/* Enable MPU */
MPU->CTRL |= MPU_CTRL_PRIVDEFENA_Msk | MPU_CTRL_ENABLE_Msk;
}
/**
* @brief This function configure the access right using Cortex-M3 MPU regions.
* @param None
* @retval None
*/
void MPU_AccessPermConfig(void)
{
/* Configure region for PrivilegedReadOnlyArray as REGION N°3, 32byte and R
only in privileged mode */
MPU->RNR = ARRAY_REGION_NUMBER;
MPU->RBAR |= ARRAY_ADDRESS_START;
MPU->RASR |= ARRAY_SIZE | portMPU_REGION_PRIVILEGED_READ_ONLY;
/* Read from PrivilegedReadOnlyArray. This will not generate error */
(void)PrivilegedReadOnlyArray[0];
/* Uncomment the following line to write to PrivilegedReadOnlyArray. This will
generate error */
//PrivilegedReadOnlyArray[0] = 'e';
}
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,63 +0,0 @@
/**
******************************************************************************
* @file CortexM3/MPU/stm32_mpu.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Header for stm32_mpu.c module
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32_MPU_H
#define __STM32_MPU_H
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
#define MPU_RASR_XN_Pos 28
#define MPU_RASR_XN_Msk (1UL << MPU_RASR_XN_Pos)
#define MPU_RASR_AP_Pos 24
#define MPU_RASR_AP_Msk (7UL << MPU_RASR_AP_Pos)
#define RAM_ADDRESS_START (0x20000000UL)
#define RAM_SIZE (0x19UL << 0UL)
#define PERIPH_ADDRESS_START (0x40000000)
#define PERIPH_SIZE (0x39UL << 0UL)
#define FLASH_ADDRESS_START (0x08000000)
#define FLASH_SIZE (0x27UL << 0UL)
#define portMPU_REGION_READ_WRITE (0x03UL << MPU_RASR_AP_Pos)
#define portMPU_REGION_PRIVILEGED_READ_ONLY (0x05UL << MPU_RASR_AP_Pos)
#define portMPU_REGION_READ_ONLY (0x06UL << MPU_RASR_AP_Pos)
#define portMPU_REGION_PRIVILEGED_READ_WRITE (0x01UL << MPU_RASR_AP_Pos)
#define RAM_REGION_NUMBER (0x00UL << MPU_RNR_REGION_Pos)
#define FLASH_REGION_NUMBER (0x01UL << MPU_RNR_REGION_Pos)
#define PERIPH_REGION_NUMBER (0x02UL << MPU_RNR_REGION_Pos)
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
void MPU_Config(void);
void MPU_AccessPermConfig(void);
#endif /* __STM32_MPU_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,94 +0,0 @@
/**
******************************************************************************
* @file CortexM3/MPU/stm32f2xx_conf.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Library configuration file.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_CONF_H
#define __STM32F2xx_CONF_H
/* Includes ------------------------------------------------------------------*/
/* Uncomment the line below to enable peripheral header file inclusion */
#include "stm32f2xx_adc.h"
#include "stm32f2xx_can.h"
#include "stm32f2xx_crc.h"
#include "stm32f2xx_cryp.h"
#include "stm32f2xx_dac.h"
#include "stm32f2xx_dbgmcu.h"
#include "stm32f2xx_dcmi.h"
#include "stm32f2xx_dma.h"
#include "stm32f2xx_exti.h"
#include "stm32f2xx_flash.h"
#include "stm32f2xx_fsmc.h"
#include "stm32f2xx_hash.h"
#include "stm32f2xx_gpio.h"
#include "stm32f2xx_i2c.h"
#include "stm32f2xx_iwdg.h"
#include "stm32f2xx_pwr.h"
#include "stm32f2xx_rcc.h"
#include "stm32f2xx_rng.h"
#include "stm32f2xx_rtc.h"
#include "stm32f2xx_sdio.h"
#include "stm32f2xx_spi.h"
#include "stm32f2xx_syscfg.h"
#include "stm32f2xx_tim.h"
#include "stm32f2xx_usart.h"
#include "stm32f2xx_wwdg.h"
#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* If an external clock source is used, then the value of the following define
should be set to the value of the external clock source, else, if no external
clock is used, keep this define commented */
/*#define I2S_EXTERNAL_CLOCK_VAL 12288000 */ /* Value of the external clock in Hz */
/* Uncomment the line below to expanse the "assert_param" macro in the
Standard Peripheral Library drivers code */
/* #define USE_FULL_ASSERT 1 */
/* Exported macro ------------------------------------------------------------*/
#ifdef USE_FULL_ASSERT
/**
* @brief The assert_param macro is used for function's parameters check.
* @param expr: If expr is false, it calls assert_failed function
* which reports the name of the source file and the source
* line number of the call that failed.
* If expr is true, it returns no value.
* @retval None
*/
#define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__))
/* Exported functions ------------------------------------------------------- */
void assert_failed(uint8_t* file, uint32_t line);
#else
#define assert_param(expr) ((void)0)
#endif /* USE_FULL_ASSERT */
#endif /* __STM32F2xx_CONF_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,177 +0,0 @@
/**
******************************************************************************
* @file CortexM3/MPU/stm32f2xx_it.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main Interrupt Service Routines.
* This file provides template for all exceptions handler and
* peripherals interrupt service routine.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx_it.h"
#include "stm322xg_eval.h"
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup CortexM3_MPU
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/******************************************************************************/
/* Cortex-M3 Processor Exceptions Handlers */
/******************************************************************************/
/**
* @brief This function handles NMI exception.
* @param None
* @retval None
*/
void NMI_Handler(void)
{
}
/**
* @brief This function handles Hard Fault exception.
* @param None
* @retval None
*/
void HardFault_Handler(void)
{
/* Go to infinite loop when Hard Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Memory Manage exception.
* @param None
* @retval None
*/
void MemManage_Handler(void)
{
/* Turn on LED2 */
STM_EVAL_LEDOn(LED2);
/* Go to infinite loop */
while (1)
{
}
}
/**
* @brief This function handles Bus Fault exception.
* @param None
* @retval None
*/
void BusFault_Handler(void)
{
/* Go to infinite loop when Bus Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles Usage Fault exception.
* @param None
* @retval None
*/
void UsageFault_Handler(void)
{
/* Go to infinite loop when Usage Fault exception occurs */
while (1)
{
}
}
/**
* @brief This function handles SVCall exception.
* @param None
* @retval None
*/
void SVC_Handler(void)
{
}
/**
* @brief This function handles Debug Monitor exception.
* @param None
* @retval None
*/
void DebugMon_Handler(void)
{
}
/**
* @brief This function handles PendSVC exception.
* @param None
* @retval None
*/
void PendSV_Handler(void)
{
}
/**
* @brief This function handles SysTick Handler.
* @param None
* @retval None
*/
void SysTick_Handler(void)
{
}
/******************************************************************************/
/* STM32F2xx Peripherals Interrupt Handlers */
/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */
/* available peripheral interrupt handler's name please refer to the startup */
/* file (startup_stm32f2xx.s). */
/******************************************************************************/
/**
* @brief This function handles PPP interrupt request.
* @param None
* @retval None
*/
/*void PPP_IRQHandler(void)
{
}*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,60 +0,0 @@
/**
******************************************************************************
* @file CortexM3/MPU/stm32f2xx_it.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief This file contains the headers of the interrupt handlers.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_IT_H
#define __STM32F2xx_IT_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
void NMI_Handler(void);
void HardFault_Handler(void);
void MemManage_Handler(void);
void BusFault_Handler(void);
void UsageFault_Handler(void);
void SVC_Handler(void);
void DebugMon_Handler(void);
void PendSV_Handler(void);
void SysTick_Handler(void);
#ifdef __cplusplus
}
#endif
#endif /* __STM32F2xx_IT_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,542 +0,0 @@
/**
******************************************************************************
* @file system_stm32f2xx.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File.
* This file contains the system clock configuration for STM32F2xx devices,
* and is generated by the clock configuration tool
* "STM32f2xx_Clock_Configuration_V1.0.0.xls"
*
* 1. This file provides two functions and one global variable to be called from
* user application:
* - SystemInit(): Setups the system clock (System clock source, PLL Multiplier
* and Divider factors, AHB/APBx prescalers and Flash settings),
* depending on the configuration made in the clock xls tool.
* This function is called at startup just after reset and
* before branch to main program. This call is made inside
* the "startup_stm32f2xx.s" file.
*
* - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
* by the user application to setup the SysTick
* timer or configure other parameters.
*
* - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
* be called whenever the core clock is changed
* during program execution.
*
* 2. After each device reset the HSI (16 MHz) is used as system clock source.
* Then SystemInit() function is called, in "startup_stm32f2xx.s" file, to
* configure the system clock before to branch to main program.
*
* 3. If the system clock source selected by user fails to startup, the SystemInit()
* function will do nothing and HSI still used as system clock source. User can
* add some code to deal with this issue inside the SetSysClock() function.
*
* 4. The default value of HSE crystal is set to 25MHz, refer to "HSE_VALUE" define
* in "stm32f2xx.h" file. When HSE is used as system clock source, directly or
* through PLL, and you are using different crystal you have to adapt the HSE
* value to your own configuration.
*
* 5. This file configures the system clock as follows:
*=============================================================================
*=============================================================================
* Supported STM32F2xx device revision | Rev B and Y
*-----------------------------------------------------------------------------
* System Clock source | PLL (HSE)
*-----------------------------------------------------------------------------
* SYSCLK(Hz) | 120000000
*-----------------------------------------------------------------------------
* HCLK(Hz) | 120000000
*-----------------------------------------------------------------------------
* AHB Prescaler | 1
*-----------------------------------------------------------------------------
* APB1 Prescaler | 4
*-----------------------------------------------------------------------------
* APB2 Prescaler | 2
*-----------------------------------------------------------------------------
* HSE Frequency(Hz) | 25000000
*-----------------------------------------------------------------------------
* PLL_M | 25
*-----------------------------------------------------------------------------
* PLL_N | 240
*-----------------------------------------------------------------------------
* PLL_P | 2
*-----------------------------------------------------------------------------
* PLL_Q | 5
*-----------------------------------------------------------------------------
* PLLI2S_N | NA
*-----------------------------------------------------------------------------
* PLLI2S_R | NA
*-----------------------------------------------------------------------------
* I2S input clock | NA
*-----------------------------------------------------------------------------
* VDD(V) | 3.3
*-----------------------------------------------------------------------------
* Flash Latency(WS) | 3
*-----------------------------------------------------------------------------
* Prefetch Buffer | ON
*-----------------------------------------------------------------------------
* Instruction cache | ON
*-----------------------------------------------------------------------------
* Data cache | ON
*-----------------------------------------------------------------------------
* Require 48MHz for USB OTG FS, | Enabled
* SDIO and RNG clock |
*-----------------------------------------------------------------------------
*=============================================================================
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/** @addtogroup CMSIS
* @{
*/
/** @addtogroup stm32f2xx_system
* @{
*/
/** @addtogroup STM32F2xx_System_Private_Includes
* @{
*/
#include "stm32f2xx.h"
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Defines
* @{
*/
/*!< Uncomment the following line if you need to use external SRAM mounted
on STM322xG_EVAL board as data memory */
/* #define DATA_IN_ExtSRAM */
/*!< Uncomment the following line if you need to relocate your vector Table in
Internal SRAM. */
/* #define VECT_TAB_SRAM */
#define VECT_TAB_OFFSET 0x00 /*!< Vector Table base offset field.
This value must be a multiple of 0x200. */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N */
#define PLL_M 25
#define PLL_N 240
/* SYSCLK = PLL_VCO / PLL_P */
#define PLL_P 2
/* USB OTG FS, SDIO and RNG Clock = PLL_VCO / PLLQ */
#define PLL_Q 5
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Macros
* @{
*/
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Variables
* @{
*/
uint32_t SystemCoreClock = 120000000;
__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_FunctionPrototypes
* @{
*/
static void SetSysClock(void);
#ifdef DATA_IN_ExtSRAM
static void SystemInit_ExtMemCtl(void);
#endif /* DATA_IN_ExtSRAM */
/**
* @}
*/
/** @addtogroup STM32F2xx_System_Private_Functions
* @{
*/
/**
* @brief Setup the microcontroller system
* Initialize the Embedded Flash Interface, the PLL and update the
* SystemFrequency variable.
* @param None
* @retval None
*/
void SystemInit(void)
{
/* Reset the RCC clock configuration to the default reset state ------------*/
/* Set HSION bit */
RCC->CR |= (uint32_t)0x00000001;
/* Reset CFGR register */
RCC->CFGR = 0x00000000;
/* Reset HSEON, CSSON and PLLON bits */
RCC->CR &= (uint32_t)0xFEF6FFFF;
/* Reset PLLCFGR register */
RCC->PLLCFGR = 0x24003010;
/* Reset HSEBYP bit */
RCC->CR &= (uint32_t)0xFFFBFFFF;
/* Disable all interrupts */
RCC->CIR = 0x00000000;
#ifdef DATA_IN_ExtSRAM
SystemInit_ExtMemCtl();
#endif /* DATA_IN_ExtSRAM */
/* Configure the System clock source, PLL Multiplier and Divider factors,
AHB/APBx prescalers and Flash settings ----------------------------------*/
SetSysClock();
/* Configure the Vector Table location add offset address ------------------*/
#ifdef VECT_TAB_SRAM
SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */
#else
SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */
#endif
}
/**
* @brief Update SystemCoreClock variable according to Clock Register Values.
* The SystemCoreClock variable contains the core clock (HCLK), it can
* be used by the user application to setup the SysTick timer or configure
* other parameters.
*
* @note Each time the core clock (HCLK) changes, this function must be called
* to update SystemCoreClock variable value. Otherwise, any configuration
* based on this variable will be incorrect.
*
* @note - The system frequency computed by this function is not the real
* frequency in the chip. It is calculated based on the predefined
* constant and the selected clock source:
*
* - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*)
*
* - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**)
*
* - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**)
* or HSI_VALUE(*) multiplied/divided by the PLL factors.
*
* (*) HSI_VALUE is a constant defined in stm32f2xx.h file (default value
* 16 MHz) but the real value may vary depending on the variations
* in voltage and temperature.
*
* (**) HSE_VALUE is a constant defined in stm32f2xx.h file (default value
* 25 MHz), user has to ensure that HSE_VALUE is same as the real
* frequency of the crystal used. Otherwise, this function may
* have wrong result.
*
* - The result of this function could be not correct when using fractional
* value for HSE crystal.
*
* @param None
* @retval None
*/
void SystemCoreClockUpdate(void)
{
uint32_t tmp = 0, pllvco = 0, pllp = 2, pllsource = 0, pllm = 2;
/* Get SYSCLK source -------------------------------------------------------*/
tmp = RCC->CFGR & RCC_CFGR_SWS;
switch (tmp)
{
case 0x00: /* HSI used as system clock source */
SystemCoreClock = HSI_VALUE;
break;
case 0x04: /* HSE used as system clock source */
SystemCoreClock = HSE_VALUE;
break;
case 0x08: /* PLL used as system clock source */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N
SYSCLK = PLL_VCO / PLL_P
*/
pllsource = (RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) >> 22;
pllm = RCC->PLLCFGR & RCC_PLLCFGR_PLLM;
if (pllsource != 0)
{
/* HSE used as PLL clock source */
pllvco = (HSE_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
}
else
{
/* HSI used as PLL clock source */
pllvco = (HSI_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
}
pllp = (((RCC->PLLCFGR & RCC_PLLCFGR_PLLP) >>16) + 1 ) *2;
SystemCoreClock = pllvco/pllp;
break;
default:
SystemCoreClock = HSI_VALUE;
break;
}
/* Compute HCLK frequency --------------------------------------------------*/
/* Get HCLK prescaler */
tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)];
/* HCLK frequency */
SystemCoreClock >>= tmp;
}
/**
* @brief Configures the System clock source, PLL Multiplier and Divider factors,
* AHB/APBx prescalers and Flash settings
* @Note This function should be called only once the RCC clock configuration
* is reset to the default reset state (done in SystemInit() function).
* @param None
* @retval None
*/
static void SetSysClock(void)
{
/******************************************************************************/
/* PLL (clocked by HSE) used as System clock source */
/******************************************************************************/
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
/* Enable HSE */
RCC->CR |= ((uint32_t)RCC_CR_HSEON);
/* Wait till HSE is ready and if Time out is reached exit */
do
{
HSEStatus = RCC->CR & RCC_CR_HSERDY;
StartUpCounter++;
} while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
if ((RCC->CR & RCC_CR_HSERDY) != RESET)
{
HSEStatus = (uint32_t)0x01;
}
else
{
HSEStatus = (uint32_t)0x00;
}
if (HSEStatus == (uint32_t)0x01)
{
/* HCLK = SYSCLK / 1*/
RCC->CFGR |= RCC_CFGR_HPRE_DIV1;
/* PCLK2 = HCLK / 2*/
RCC->CFGR |= RCC_CFGR_PPRE2_DIV2;
/* PCLK1 = HCLK / 4*/
RCC->CFGR |= RCC_CFGR_PPRE1_DIV4;
/* Configure the main PLL */
RCC->PLLCFGR = PLL_M | (PLL_N << 6) | (((PLL_P >> 1) -1) << 16) |
(RCC_PLLCFGR_PLLSRC_HSE) | (PLL_Q << 24);
/* Enable the main PLL */
RCC->CR |= RCC_CR_PLLON;
/* Wait till the main PLL is ready */
while((RCC->CR & RCC_CR_PLLRDY) == 0)
{
}
/* Configure Flash prefetch, Instruction cache, Data cache and wait state */
FLASH->ACR = FLASH_ACR_PRFTEN | FLASH_ACR_ICEN | FLASH_ACR_DCEN | FLASH_ACR_LATENCY_3WS;
/* Select the main PLL as system clock source */
RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW));
RCC->CFGR |= RCC_CFGR_SW_PLL;
/* Wait till the main PLL is used as system clock source */
while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS ) != RCC_CFGR_SWS_PLL);
{
}
}
else
{ /* If HSE fails to start-up, the application will have wrong clock
configuration. User can add here some code to deal with this error */
}
}
/**
* @brief Setup the external memory controller. Called in startup_stm32f2xx.s
* before jump to __main
* @param None
* @retval None
*/
#ifdef DATA_IN_ExtSRAM
/**
* @brief Setup the external memory controller.
* Called in startup_stm32f2xx.s before jump to main.
* This function configures the external SRAM mounted on STM322xG_EVAL board
* This SRAM will be used as program data memory (including heap and stack).
* @param None
* @retval None
*/
void SystemInit_ExtMemCtl(void)
{
/*-- GPIOs Configuration -----------------------------------------------------*/
/*
+-------------------+--------------------+------------------+------------------+
+ SRAM pins assignment +
+-------------------+--------------------+------------------+------------------+
| PD0 <-> FSMC_D2 | PE0 <-> FSMC_NBL0 | PF0 <-> FSMC_A0 | PG0 <-> FSMC_A10 |
| PD1 <-> FSMC_D3 | PE1 <-> FSMC_NBL1 | PF1 <-> FSMC_A1 | PG1 <-> FSMC_A11 |
| PD4 <-> FSMC_NOE | PE7 <-> FSMC_D4 | PF2 <-> FSMC_A2 | PG2 <-> FSMC_A12 |
| PD5 <-> FSMC_NWE | PE8 <-> FSMC_D5 | PF3 <-> FSMC_A3 | PG3 <-> FSMC_A13 |
| PD8 <-> FSMC_D13 | PE9 <-> FSMC_D6 | PF4 <-> FSMC_A4 | PG4 <-> FSMC_A14 |
| PD9 <-> FSMC_D14 | PE10 <-> FSMC_D7 | PF5 <-> FSMC_A5 | PG5 <-> FSMC_A15 |
| PD10 <-> FSMC_D15 | PE11 <-> FSMC_D8 | PF12 <-> FSMC_A6 | PG9 <-> FSMC_NE2 |
| PD11 <-> FSMC_A16 | PE12 <-> FSMC_D9 | PF13 <-> FSMC_A7 |------------------+
| PD12 <-> FSMC_A17 | PE13 <-> FSMC_D10 | PF14 <-> FSMC_A8 |
| PD14 <-> FSMC_D0 | PE14 <-> FSMC_D11 | PF15 <-> FSMC_A9 |
| PD15 <-> FSMC_D1 | PE15 <-> FSMC_D12 |------------------+
+-------------------+--------------------+
*/
/* Enable GPIOD, GPIOE, GPIOF and GPIOG interface clock */
RCC->AHB1ENR = 0x00000078;
/* Connect PDx pins to FSMC Alternate function */
GPIOD->AFR[0] = 0x00cc00cc;
GPIOD->AFR[1] = 0xcc0ccccc;
/* Configure PDx pins in Alternate function mode */
GPIOD->MODER = 0xa2aa0a0a;
/* Configure PDx pins speed to 100 MHz */
GPIOD->OSPEEDR = 0xf3ff0f0f;
/* Configure PDx pins Output type to push-pull */
GPIOD->OTYPER = 0x00000000;
/* No pull-up, pull-down for PDx pins */
GPIOD->PUPDR = 0x00000000;
/* Connect PEx pins to FSMC Alternate function */
GPIOE->AFR[0] = 0xc00000cc;
GPIOE->AFR[1] = 0xcccccccc;
/* Configure PEx pins in Alternate function mode */
GPIOE->MODER = 0xaaaa800a;
/* Configure PEx pins speed to 100 MHz */
GPIOE->OSPEEDR = 0xffffc00f;
/* Configure PEx pins Output type to push-pull */
GPIOE->OTYPER = 0x00000000;
/* No pull-up, pull-down for PEx pins */
GPIOE->PUPDR = 0x00000000;
/* Connect PFx pins to FSMC Alternate function */
GPIOF->AFR[0] = 0x00cccccc;
GPIOF->AFR[1] = 0xcccc0000;
/* Configure PFx pins in Alternate function mode */
GPIOF->MODER = 0xaa000aaa;
/* Configure PFx pins speed to 100 MHz */
GPIOF->OSPEEDR = 0xff000fff;
/* Configure PFx pins Output type to push-pull */
GPIOF->OTYPER = 0x00000000;
/* No pull-up, pull-down for PFx pins */
GPIOF->PUPDR = 0x00000000;
/* Connect PGx pins to FSMC Alternate function */
GPIOG->AFR[0] = 0x00cccccc;
GPIOG->AFR[1] = 0x000000c0;
/* Configure PGx pins in Alternate function mode */
GPIOG->MODER = 0x00080aaa;
/* Configure PGx pins speed to 100 MHz */
GPIOG->OSPEEDR = 0x000c0fff;
/* Configure PGx pins Output type to push-pull */
GPIOG->OTYPER = 0x00000000;
/* No pull-up, pull-down for PGx pins */
GPIOG->PUPDR = 0x00000000;
/*-- FSMC Configuration ------------------------------------------------------*/
/* Enable the FSMC interface clock */
RCC->AHB3ENR = 0x00000001;
/* Configure and enable Bank1_SRAM2 */
FSMC_Bank1->BTCR[2] = 0x00001015;
FSMC_Bank1->BTCR[3] = 0x00010400;
FSMC_Bank1E->BWTR[2] = 0x0fffffff;
/*
Bank1_SRAM2 is configured as follow:
p.FSMC_AddressSetupTime = 0;
p.FSMC_AddressHoldTime = 0;
p.FSMC_DataSetupTime = 4;
p.FSMC_BusTurnAroundDuration = 1;
p.FSMC_CLKDivision = 0;
p.FSMC_DataLatency = 0;
p.FSMC_AccessMode = FSMC_AccessMode_A;
FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM2;
FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;
FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_PSRAM;
FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b;
FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_AsynchronousWait = FSMC_AsynchronousWait_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState;
FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;
FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;
FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p;
FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;
*/
}
#endif /* DATA_IN_ExtSRAM */
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,186 +0,0 @@
/**
******************************************************************************
* @file CortexM3/Mode_Privilege/main.c
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Main program body
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx.h"
/** @addtogroup STM32F2xx_StdPeriph_Examples
* @{
*/
/** @addtogroup CortexM3_Mode_Privilege
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define SP_PROCESS_SIZE 0x200 /* Process stack size */
#define SP_PROCESS 0x02 /* Process stack */
#define SP_MAIN 0x00 /* Main stack */
#define THREAD_MODE_PRIVILEGED 0x00 /* Thread mode has privileged access */
#define THREAD_MODE_UNPRIVILEGED 0x01 /* Thread mode has unprivileged access */
/* Private macro -------------------------------------------------------------*/
#if defined ( __CC_ARM )
__ASM void __SVC(void)
{
SVC 0x01
BX R14
}
#elif defined ( __ICCARM__ )
static __INLINE void __SVC() { __ASM ("svc 0x01");}
#elif defined ( __GNUC__ )
static __INLINE void __SVC() { __ASM volatile ("svc 0x01");}
#elif defined ( __TASKING__ )
static __INLINE void __SVC() { __ASM ("svc 0x01");}
#endif
/* Private variables ---------------------------------------------------------*/
__IO uint8_t PSPMemAlloc[SP_PROCESS_SIZE];
__IO uint32_t Index = 0, PSPValue = 0, CurrentStack = 0, ThreadMode = 0;
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f2xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f2xx.c file
*/
/* Switch Thread mode Stack from Main to Process -----------------------------*/
/* Initialize memory reserved for Process Stack */
for(Index = 0; Index < SP_PROCESS_SIZE; Index++)
{
PSPMemAlloc[Index] = 0x00;
}
/* Set Process stack value */
__set_PSP((uint32_t)PSPMemAlloc + SP_PROCESS_SIZE);
/* Select Process Stack as Thread mode Stack */
__set_CONTROL(SP_PROCESS);
/* Get the Thread mode stack used */
if((__get_CONTROL() & 0x02) == SP_MAIN)
{
/* Main stack is used as the current stack */
CurrentStack = SP_MAIN;
}
else
{
/* Process stack is used as the current stack */
CurrentStack = SP_PROCESS;
/* Get process stack pointer value */
PSPValue = __get_PSP();
}
/* Switch Thread mode from privileged to unprivileged ------------------------*/
/* Thread mode has unprivileged access */
__set_CONTROL(THREAD_MODE_UNPRIVILEGED | SP_PROCESS);
/* Unprivileged access mainly affect ability to:
- Use or not use certain instructions such as MSR fields
- Access System Control Space (SCS) registers such as NVIC and SysTick */
/* Check Thread mode privilege status */
if((__get_CONTROL() & 0x01) == THREAD_MODE_PRIVILEGED)
{
/* Thread mode has privileged access */
ThreadMode = THREAD_MODE_PRIVILEGED;
}
else
{
/* Thread mode has unprivileged access*/
ThreadMode = THREAD_MODE_UNPRIVILEGED;
}
/* Switch back Thread mode from unprivileged to privileged -------------------*/
/* Try to switch back Thread mode to privileged (Not possible, this can be
done only in Handler mode) */
__set_CONTROL(THREAD_MODE_PRIVILEGED | SP_PROCESS);
/* Generate a system call exception, and in the ISR switch back Thread mode
to privileged */
__SVC();
/* Check Thread mode privilege status */
if((__get_CONTROL() & 0x01) == THREAD_MODE_PRIVILEGED)
{
/* Thread mode has privileged access */
ThreadMode = THREAD_MODE_PRIVILEGED;
}
else
{
/* Thread mode has unprivileged access*/
ThreadMode = THREAD_MODE_UNPRIVILEGED;
}
while (1)
{
}
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
@@ -1,83 +0,0 @@
/**
@page CortexM3_Mode_Privilege CortexM3 Mode Privilege example
@verbatim
******************** (C) COPYRIGHT 2012 STMicroelectronics *******************
* @file CortexM3/Mode_Privilege/readme.txt
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Description of the CortexM3 Mode Privilege example.
******************************************************************************
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
@endverbatim
@par Example Description
This example shows how to modify CortexM3 Thread mode privilege access and stack.
CortexM3 Thread mode is entered on Reset, and can be entered as a result of an
exception return.
The associated program is used to:
1. Switch the Thread mode stack from Main stack to Process stack
2. Switch the Thread mode from Privileged to Unprivileged
3. Switch the Thread mode from Unprivileged back to Privileged
To monitor the stack used and the privileged or unprivileged access level of code
in Thread mode, a set of variables is available within the program. It is also
possible to use the 'Cortex register' window of the debugger.
@par Directory contents
- CortexM3/Mode_Privilege/stm32f2xx_conf.h Library Configuration file
- CortexM3/Mode_Privilege/stm32f2xx_it.c Interrupt handlers
- CortexM3/Mode_Privilege/stm32f2xx_it.h Interrupt handlers header file
- CortexM3/Mode_Privilege/main.c Main program
- CortexM3/Mode_Privilege/system_stm32f2xx.c STM32F2xx system source file
@note The "system_stm32f2xx.c" is generated by an automatic clock configuration
tool and can be easily customized to your own configuration.
To select different clock setup, use the "STM32F2xx_Clock_Configuration_V1.0.0.xls"
provided with the AN3362 package available on <a href="http://www.st.com/internet/mcu/family/141.jsp"> ST Microcontrollers </a>
@par Hardware and Software environment
- This example runs on STM32F2xx Devices.
- This example has been tested with STM322xG-EVAL RevB and can be easily tailored
to any other development board
@par How to use it ?
In order to make the program work, you must do the following :
- Copy all source files from this example folder to the template folder under
Project\STM32F2xx_StdPeriph_Template
- Open your preferred toolchain
- Rebuild all files and load your image into target memory
- Run the example
* <h3><center>&copy; COPYRIGHT STMicroelectronics</center></h3>
*/
@@ -1,94 +0,0 @@
/**
******************************************************************************
* @file CortexM3/Mode_Privilege/stm32f2xx_conf.h
* @author MCD Application Team
* @version V1.1.0
* @date 13-April-2012
* @brief Library configuration file.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F2xx_CONF_H
#define __STM32F2xx_CONF_H
/* Includes ------------------------------------------------------------------*/
/* Uncomment the line below to enable peripheral header file inclusion */
#include "stm32f2xx_adc.h"
#include "stm32f2xx_can.h"
#include "stm32f2xx_crc.h"
#include "stm32f2xx_cryp.h"
#include "stm32f2xx_dac.h"
#include "stm32f2xx_dbgmcu.h"
#include "stm32f2xx_dcmi.h"
#include "stm32f2xx_dma.h"
#include "stm32f2xx_exti.h"
#include "stm32f2xx_flash.h"
#include "stm32f2xx_fsmc.h"
#include "stm32f2xx_hash.h"
#include "stm32f2xx_gpio.h"
#include "stm32f2xx_i2c.h"
#include "stm32f2xx_iwdg.h"
#include "stm32f2xx_pwr.h"
#include "stm32f2xx_rcc.h"
#include "stm32f2xx_rng.h"
#include "stm32f2xx_rtc.h"
#include "stm32f2xx_sdio.h"
#include "stm32f2xx_spi.h"
#include "stm32f2xx_syscfg.h"
#include "stm32f2xx_tim.h"
#include "stm32f2xx_usart.h"
#include "stm32f2xx_wwdg.h"
#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* If an external clock source is used, then the value of the following define
should be set to the value of the external clock source, else, if no external
clock is used, keep this define commented */
/*#define I2S_EXTERNAL_CLOCK_VAL 12288000 */ /* Value of the external clock in Hz */
/* Uncomment the line below to expanse the "assert_param" macro in the
Standard Peripheral Library drivers code */
/* #define USE_FULL_ASSERT 1 */
/* Exported macro ------------------------------------------------------------*/
#ifdef USE_FULL_ASSERT
/**
* @brief The assert_param macro is used for function's parameters check.
* @param expr: If expr is false, it calls assert_failed function
* which reports the name of the source file and the source
* line number of the call that failed.
* If expr is true, it returns no value.
* @retval None
*/
#define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__))
/* Exported functions ------------------------------------------------------- */
void assert_failed(uint8_t* file, uint32_t line);
#else
#define assert_param(expr) ((void)0)
#endif /* USE_FULL_ASSERT */
#endif /* __STM32F2xx_CONF_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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