110 lines
3.0 KiB
C++
110 lines
3.0 KiB
C++
/*
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* Authors (alphabetical order)
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* - Andre Bernet <bernet.andre@gmail.com>
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* - Andreas Weitl
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* - Bertrand Songis <bsongis@gmail.com>
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* - Bryan J. Rentoul (Gruvin) <gruvin@gmail.com>
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* - Cameron Weeks <th9xer@gmail.com>
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* - Erez Raviv
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* - Gabriel Birkus
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* - Jean-Pierre Parisy
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* - Karl Szmutny
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* - Michael Blandford
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* - Michal Hlavinka
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* - Pat Mackenzie
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* - Philip Moss
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* - Rob Thomson
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* - Romolo Manfredini <romolo.manfredini@gmail.com>
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* - Thomas Husterer
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*
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* opentx is based on code named
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* gruvin9x by Bryan J. Rentoul: http://code.google.com/p/gruvin9x/,
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* er9x by Erez Raviv: http://code.google.com/p/er9x/,
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* and the original (and ongoing) project by
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* Thomas Husterer, th9x: http://code.google.com/p/th9x/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include "../opentx.h"
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#include <stdarg.h>
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#if !defined(SIMU)
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extern Fifo<512> debugRxFifo;
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/*
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* Outputs a character on the UART line.
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*
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* This function is synchronous (i.e. uses polling).
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* c Character to send.
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*/
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void debugPutc(const char c)
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{
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Uart *pUart = CONSOLE_USART;
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/* Wait for the transmitter to be ready */
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while ( (pUart->UART_SR & UART_SR_TXEMPTY) == 0 ) ;
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/* Send character */
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pUart->UART_THR = c;
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}
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/**
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* Configures a UART peripheral with the specified parameters.
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*
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* baudrate Baudrate at which the UART should operate (in Hz).
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* masterClock Frequency of the system master clock (in Hz).
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* uses PA9 and PA10, RXD2 and TXD2
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*/
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void DEBUG_UART_Configure( uint32_t baudrate, uint32_t masterClock)
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{
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register Uart *pUart = CONSOLE_USART;
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/* Configure PIO */
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configure_pins( (PIO_PA9 | PIO_PA10), PIN_PERIPHERAL | PIN_INPUT | PIN_PER_A | PIN_PORTA | PIN_NO_PULLUP ) ;
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/* Configure PMC */
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PMC->PMC_PCER0 = 1 << CONSOLE_ID;
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/* Reset and disable receiver & transmitter */
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pUart->UART_CR = UART_CR_RSTRX | UART_CR_RSTTX
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| UART_CR_RXDIS | UART_CR_TXDIS;
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/* Configure mode */
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pUart->UART_MR = 0x800 ; // NORMAL, No Parity
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/* Configure baudrate */
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/* Asynchronous, no oversampling */
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pUart->UART_BRGR = (masterClock / baudrate) / 16;
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/* Disable PDC channel */
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pUart->UART_PTCR = UART_PTCR_RXTDIS | UART_PTCR_TXTDIS;
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/* Enable receiver and transmitter */
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pUart->UART_CR = UART_CR_RXEN | UART_CR_TXEN;
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pUart->UART_IER = UART_IER_RXRDY ;
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NVIC_EnableIRQ(UART0_IRQn) ;
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}
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void DEBUG_UART_Stop()
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{
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CONSOLE_USART->UART_IDR = UART_IDR_RXRDY ;
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NVIC_DisableIRQ(UART0_IRQn) ;
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}
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extern "C" void UART0_IRQHandler()
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{
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debugRxFifo.push(CONSOLE_USART->UART_RHR);
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}
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#endif
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