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edgetx-gx12/radio/src/targets/taranis/extmodule_driver.cpp
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2020-08-28 15:54:51 +02:00

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/*
* Copyright (C) OpenTX
*
* Based on code named
* th9x - http://code.google.com/p/th9x
* er9x - http://code.google.com/p/er9x
* gruvin9x - http://code.google.com/p/gruvin9x
*
* License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include "opentx.h"
void extmoduleStop()
{
NVIC_DisableIRQ(EXTMODULE_TIMER_DMA_STREAM_IRQn);
NVIC_DisableIRQ(EXTMODULE_TIMER_CC_IRQn);
EXTMODULE_TIMER_DMA_STREAM->CR &= ~DMA_SxCR_EN; // Disable DMA
#if defined(EXTMODULE_USART)
EXTMODULE_USART_TX_DMA_STREAM->CR &= ~DMA_SxCR_EN; // Disable DMA
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = EXTMODULE_TX_GPIO_PIN | EXTMODULE_RX_GPIO_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_Init(EXTMODULE_USART_GPIO, &GPIO_InitStructure);
GPIO_ResetBits(EXTMODULE_USART_GPIO, EXTMODULE_TX_GPIO_PIN | EXTMODULE_RX_GPIO_PIN);
#endif
EXTMODULE_TIMER->DIER &= ~(TIM_DIER_CC2IE | TIM_DIER_UDE);
EXTMODULE_TIMER->CR1 &= ~TIM_CR1_CEN;
if (!IS_TRAINER_EXTERNAL_MODULE()) {
EXTERNAL_MODULE_PWR_OFF();
}
}
void extmodulePpmStart()
{
EXTERNAL_MODULE_ON();
GPIO_PinAFConfig(EXTMODULE_TX_GPIO, EXTMODULE_TX_GPIO_PinSource, EXTMODULE_TIMER_TX_GPIO_AF);
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = EXTMODULE_TX_GPIO_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(EXTMODULE_TX_GPIO, &GPIO_InitStructure);
EXTMODULE_TIMER->CR1 &= ~TIM_CR1_CEN;
EXTMODULE_TIMER->PSC = EXTMODULE_TIMER_FREQ / 2000000 - 1; // 0.5uS from 30MHz
EXTMODULE_TIMER->CCR1 = GET_MODULE_PPM_DELAY(EXTERNAL_MODULE)*2;
EXTMODULE_TIMER->CCER = EXTMODULE_TIMER_OUTPUT_ENABLE | (GET_MODULE_PPM_POLARITY(EXTERNAL_MODULE) ? EXTMODULE_TIMER_OUTPUT_POLARITY : 0); // // we are using complementary output so logic has to be reversed here
EXTMODULE_TIMER->BDTR = TIM_BDTR_MOE;
EXTMODULE_TIMER->CCMR1 = TIM_CCMR1_OC1M_2 | TIM_CCMR1_OC1M_0; // Force O/P high
EXTMODULE_TIMER->EGR = 1;
EXTMODULE_TIMER->CCMR1 = TIM_CCMR1_OC1M_1 | TIM_CCMR1_OC1M_2 | TIM_CCMR1_OC2PE; // PWM mode 1
EXTMODULE_TIMER->SR &= ~TIM_SR_CC2IF; // Clear flag
EXTMODULE_TIMER->ARR = 45000;
EXTMODULE_TIMER->CCR2 = 40000; // The first frame will be sent in 20ms
EXTMODULE_TIMER->DIER |= TIM_DIER_UDE | TIM_DIER_CC2IE;
EXTMODULE_TIMER->CR1 |= TIM_CR1_CEN;
NVIC_EnableIRQ(EXTMODULE_TIMER_DMA_STREAM_IRQn);
NVIC_SetPriority(EXTMODULE_TIMER_DMA_STREAM_IRQn, 7);
NVIC_EnableIRQ(EXTMODULE_TIMER_CC_IRQn);
NVIC_SetPriority(EXTMODULE_TIMER_CC_IRQn, 7);
}
void extmoduleSerialStart(uint32_t /*baudrate*/, uint32_t period_half_us, bool inverted)
{
EXTERNAL_MODULE_ON();
GPIO_PinAFConfig(EXTMODULE_TX_GPIO, EXTMODULE_TX_GPIO_PinSource, EXTMODULE_TIMER_TX_GPIO_AF);
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = EXTMODULE_TX_GPIO_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(EXTMODULE_TX_GPIO, &GPIO_InitStructure);
EXTMODULE_TIMER->CR1 &= ~TIM_CR1_CEN;
EXTMODULE_TIMER->PSC = EXTMODULE_TIMER_FREQ / 2000000 - 1; // 0.5uS from 30MHz
EXTMODULE_TIMER->CCER = EXTMODULE_TIMER_OUTPUT_ENABLE | (inverted ? 0 : EXTMODULE_TIMER_OUTPUT_POLARITY);
EXTMODULE_TIMER->BDTR = TIM_BDTR_MOE; // Enable outputs
EXTMODULE_TIMER->CCR1 = 0;
EXTMODULE_TIMER->CCMR1 = TIM_CCMR1_OC1M_2 | TIM_CCMR1_OC1M_0; // Force O/P high
EXTMODULE_TIMER->EGR = 1; // Restart
EXTMODULE_TIMER->CCMR1 = TIM_CCMR1_OC1M_1 | TIM_CCMR1_OC1M_0;
EXTMODULE_TIMER->ARR = period_half_us;
EXTMODULE_TIMER->CCR2 = 40000; // The first frame will be sent in 20ms
EXTMODULE_TIMER->SR &= ~TIM_SR_CC2IF; // Clear flag
EXTMODULE_TIMER->DIER |= TIM_DIER_UDE | TIM_DIER_CC2IE;
EXTMODULE_TIMER->CR1 |= TIM_CR1_CEN;
NVIC_EnableIRQ(EXTMODULE_TIMER_DMA_STREAM_IRQn);
NVIC_SetPriority(EXTMODULE_TIMER_DMA_STREAM_IRQn, 7);
NVIC_EnableIRQ(EXTMODULE_TIMER_CC_IRQn);
NVIC_SetPriority(EXTMODULE_TIMER_CC_IRQn, 7);
}
#if defined(EXTMODULE_USART)
ModuleFifo extmoduleFifo;
void extmoduleInvertedSerialStart(uint32_t baudrate)
{
EXTERNAL_MODULE_ON();
// TX + RX Pins
GPIO_PinAFConfig(EXTMODULE_USART_GPIO, EXTMODULE_TX_GPIO_PinSource, EXTMODULE_USART_GPIO_AF);
GPIO_PinAFConfig(EXTMODULE_USART_GPIO, EXTMODULE_RX_GPIO_PinSource, EXTMODULE_USART_GPIO_AF);
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = EXTMODULE_TX_GPIO_PIN | EXTMODULE_RX_GPIO_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(EXTMODULE_USART_GPIO, &GPIO_InitStructure);
// UART config
USART_DeInit(EXTMODULE_USART);
USART_InitTypeDef USART_InitStructure;
USART_InitStructure.USART_BaudRate = baudrate;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Tx | USART_Mode_Rx;
USART_Init(EXTMODULE_USART, &USART_InitStructure);
USART_Cmd(EXTMODULE_USART, ENABLE);
extmoduleFifo.clear();
USART_ITConfig(EXTMODULE_USART, USART_IT_RXNE, ENABLE);
NVIC_SetPriority(EXTMODULE_USART_IRQn, 6);
NVIC_EnableIRQ(EXTMODULE_USART_IRQn);
}
void extmoduleSendBuffer(const uint8_t * data, uint8_t size)
{
DMA_InitTypeDef DMA_InitStructure;
DMA_DeInit(EXTMODULE_USART_TX_DMA_STREAM);
DMA_InitStructure.DMA_Channel = EXTMODULE_USART_TX_DMA_CHANNEL;
DMA_InitStructure.DMA_PeripheralBaseAddr = CONVERT_PTR_UINT(&EXTMODULE_USART->DR);
DMA_InitStructure.DMA_DIR = DMA_DIR_MemoryToPeripheral;
DMA_InitStructure.DMA_Memory0BaseAddr = CONVERT_PTR_UINT(data);
DMA_InitStructure.DMA_BufferSize = size;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Byte;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;
DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
DMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh;
DMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Disable;
DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_Full;
DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
DMA_Init(EXTMODULE_USART_TX_DMA_STREAM, &DMA_InitStructure);
DMA_Cmd(EXTMODULE_USART_TX_DMA_STREAM, ENABLE);
USART_DMACmd(EXTMODULE_USART, USART_DMAReq_Tx, ENABLE);
}
#define USART_FLAG_ERRORS (USART_FLAG_ORE | USART_FLAG_NE | USART_FLAG_FE | USART_FLAG_PE)
extern "C" void EXTMODULE_USART_IRQHandler(void)
{
uint32_t status = EXTMODULE_USART->SR;
while (status & (USART_FLAG_RXNE | USART_FLAG_ERRORS)) {
uint8_t data = EXTMODULE_USART->DR;
if (status & USART_FLAG_ERRORS) {
extmoduleFifo.errors++;
}
else {
extmoduleFifo.push(data);
}
status = EXTMODULE_USART->SR;
}
}
#endif
#if defined(PXX1)
void extmodulePxx1PulsesStart()
{
EXTERNAL_MODULE_ON();
GPIO_PinAFConfig(EXTMODULE_TX_GPIO, EXTMODULE_TX_GPIO_PinSource, EXTMODULE_TIMER_TX_GPIO_AF);
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = EXTMODULE_TX_GPIO_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(EXTMODULE_TX_GPIO, &GPIO_InitStructure);
EXTMODULE_TIMER->CR1 &= ~TIM_CR1_CEN;
EXTMODULE_TIMER->PSC = EXTMODULE_TIMER_FREQ / 2000000 - 1; // 0.5uS (2Mhz)
EXTMODULE_TIMER->CCER = EXTMODULE_TIMER_OUTPUT_ENABLE | EXTMODULE_TIMER_OUTPUT_POLARITY; // polarity, default low
EXTMODULE_TIMER->BDTR = TIM_BDTR_MOE; // Enable outputs
EXTMODULE_TIMER->CCR1 = 18;
EXTMODULE_TIMER->CCMR1 = TIM_CCMR1_OC1M_2 | TIM_CCMR1_OC1M_0; // Force O/P high
EXTMODULE_TIMER->EGR = 1; // Restart
EXTMODULE_TIMER->CCMR1 = TIM_CCMR1_OC1M_1 | TIM_CCMR1_OC1M_2;
EXTMODULE_TIMER->ARR = 45000;
EXTMODULE_TIMER->CCR2 = 40000; // The first frame will be sent in 20ms
EXTMODULE_TIMER->SR &= ~TIM_SR_CC2IF; // Clear flag
EXTMODULE_TIMER->DIER |= TIM_DIER_UDE | TIM_DIER_CC2IE;
EXTMODULE_TIMER->CR1 |= TIM_CR1_CEN;
NVIC_EnableIRQ(EXTMODULE_TIMER_DMA_STREAM_IRQn);
NVIC_SetPriority(EXTMODULE_TIMER_DMA_STREAM_IRQn, 7);
NVIC_EnableIRQ(EXTMODULE_TIMER_CC_IRQn);
NVIC_SetPriority(EXTMODULE_TIMER_CC_IRQn, 7);
}
#endif
#if defined(PXX1) && defined(EXTMODULE_USART)
void extmodulePxx1SerialStart()
{
extmoduleInvertedSerialStart(EXTMODULE_PXX1_SERIAL_BAUDRATE);
}
#endif
void extmoduleSendNextFrame()
{
switch (moduleState[EXTERNAL_MODULE].protocol) {
case PROTOCOL_CHANNELS_PPM:
EXTMODULE_TIMER->CCR1 = GET_MODULE_PPM_DELAY(EXTERNAL_MODULE) * 2;
EXTMODULE_TIMER->CCER = EXTMODULE_TIMER_OUTPUT_ENABLE | (GET_MODULE_PPM_POLARITY(EXTERNAL_MODULE) ? EXTMODULE_TIMER_OUTPUT_POLARITY : 0); // // we are using complementary output so logic has to be reversed here
EXTMODULE_TIMER->CCR2 = *(extmodulePulsesData.ppm.ptr - 1) - 4000; // 2mS in advance
EXTMODULE_TIMER_DMA_STREAM->CR &= ~DMA_SxCR_EN; // Disable DMA
EXTMODULE_TIMER_DMA_STREAM->CR |= EXTMODULE_TIMER_DMA_CHANNEL | DMA_SxCR_DIR_0 | DMA_SxCR_MINC | DMA_SxCR_PSIZE_0 | DMA_SxCR_MSIZE_0 | DMA_SxCR_PL_0 | DMA_SxCR_PL_1;
EXTMODULE_TIMER_DMA_STREAM->PAR = CONVERT_PTR_UINT(&EXTMODULE_TIMER->ARR);
EXTMODULE_TIMER_DMA_STREAM->M0AR = CONVERT_PTR_UINT(extmodulePulsesData.ppm.pulses);
EXTMODULE_TIMER_DMA_STREAM->NDTR = extmodulePulsesData.ppm.ptr - extmodulePulsesData.ppm.pulses;
EXTMODULE_TIMER_DMA_STREAM->CR |= DMA_SxCR_EN | DMA_SxCR_TCIE; // Enable DMA
break;
#if defined(PXX1)
case PROTOCOL_CHANNELS_PXX1_PULSES:
EXTMODULE_TIMER->CCR2 = extmodulePulsesData.pxx.getLast() - 4000; // 2mS in advance
EXTMODULE_TIMER_DMA_STREAM->CR &= ~DMA_SxCR_EN; // Disable DMA
EXTMODULE_TIMER_DMA_STREAM->CR |= EXTMODULE_TIMER_DMA_CHANNEL | DMA_SxCR_DIR_0 | DMA_SxCR_MINC | DMA_SxCR_PSIZE_0 | DMA_SxCR_MSIZE_0 | DMA_SxCR_PL_0 | DMA_SxCR_PL_1;
EXTMODULE_TIMER_DMA_STREAM->PAR = CONVERT_PTR_UINT(&EXTMODULE_TIMER->ARR);
EXTMODULE_TIMER_DMA_STREAM->M0AR = CONVERT_PTR_UINT(extmodulePulsesData.pxx.getData());
EXTMODULE_TIMER_DMA_STREAM->NDTR = extmodulePulsesData.pxx.getSize();
EXTMODULE_TIMER_DMA_STREAM->CR |= DMA_SxCR_EN | DMA_SxCR_TCIE; // Enable DMA
break;
#endif
#if defined(PXX1) && defined(HARDWARE_EXTERNAL_MODULE_SIZE_SML)
case PROTOCOL_CHANNELS_PXX1_SERIAL:
extmoduleSendBuffer(extmodulePulsesData.pxx_uart.getData(), extmodulePulsesData.pxx_uart.getSize());
break;
#endif
#if defined(PXX2)
case PROTOCOL_CHANNELS_PXX2_HIGHSPEED:
case PROTOCOL_CHANNELS_PXX2_LOWSPEED:
extmoduleSendBuffer(extmodulePulsesData.pxx2.getData(), extmodulePulsesData.pxx2.getSize());
break;
#endif
#if defined(AFHDS3)
case PROTOCOL_CHANNELS_AFHDS3:
{
#if defined(EXTMODULE_USART) && defined(EXTMODULE_TX_INVERT_GPIO)
extmoduleSendBuffer(extmodulePulsesData.afhds3.getData(), extmodulePulsesData.afhds3.getSize());
#else
const uint16_t* dataPtr = extmodulePulsesData.afhds3.getData();
uint32_t dataSize = extmodulePulsesData.afhds3.getSize();
EXTMODULE_TIMER->CCR2 = dataPtr[dataSize -1] - 4000; // 2mS in advance
EXTMODULE_TIMER_DMA_STREAM->CR &= ~DMA_SxCR_EN; // Disable DMA
EXTMODULE_TIMER_DMA_STREAM->CR |= EXTMODULE_TIMER_DMA_CHANNEL | DMA_SxCR_DIR_0 | DMA_SxCR_MINC | DMA_SxCR_PSIZE_0 | DMA_SxCR_MSIZE_0 | DMA_SxCR_PL_0 | DMA_SxCR_PL_1;
EXTMODULE_TIMER_DMA_STREAM->PAR = CONVERT_PTR_UINT(&EXTMODULE_TIMER->ARR);
EXTMODULE_TIMER_DMA_STREAM->M0AR = CONVERT_PTR_UINT(dataPtr);
EXTMODULE_TIMER_DMA_STREAM->NDTR = dataSize;
EXTMODULE_TIMER_DMA_STREAM->CR |= DMA_SxCR_EN | DMA_SxCR_TCIE; // Enable DMA
#endif
}
break;
#endif
#if defined(SBUS) || defined(DSM2) || defined(MULTIMODULE)
case PROTOCOL_CHANNELS_SBUS:
EXTMODULE_TIMER->CCER = EXTMODULE_TIMER_OUTPUT_ENABLE | (GET_SBUS_POLARITY(EXTERNAL_MODULE) ? 0 : EXTMODULE_TIMER_OUTPUT_POLARITY); // reverse polarity for Sbus if needed
// no break
case PROTOCOL_CHANNELS_DSM2_LP45:
case PROTOCOL_CHANNELS_DSM2_DSM2:
case PROTOCOL_CHANNELS_DSM2_DSMX:
case PROTOCOL_CHANNELS_MULTIMODULE:
EXTMODULE_TIMER->CCR2 = *(extmodulePulsesData.dsm2.ptr - 1) - 4000; // 2mS in advance
EXTMODULE_TIMER_DMA_STREAM->CR &= ~DMA_SxCR_EN; // Disable DMA
EXTMODULE_TIMER_DMA_STREAM->CR |= EXTMODULE_TIMER_DMA_CHANNEL | DMA_SxCR_DIR_0 | DMA_SxCR_MINC | DMA_SxCR_PSIZE_0 | DMA_SxCR_MSIZE_0 | DMA_SxCR_PL_0 | DMA_SxCR_PL_1;
EXTMODULE_TIMER_DMA_STREAM->PAR = CONVERT_PTR_UINT(&EXTMODULE_TIMER->ARR);
EXTMODULE_TIMER_DMA_STREAM->M0AR = CONVERT_PTR_UINT(extmodulePulsesData.dsm2.pulses);
EXTMODULE_TIMER_DMA_STREAM->NDTR = extmodulePulsesData.dsm2.ptr - extmodulePulsesData.dsm2.pulses;
EXTMODULE_TIMER_DMA_STREAM->CR |= DMA_SxCR_EN | DMA_SxCR_TCIE; // Enable DMA
break;
#endif
#if defined(CROSSFIRE)
case PROTOCOL_CHANNELS_CROSSFIRE:
sportSendBuffer(extmodulePulsesData.crossfire.pulses, extmodulePulsesData.crossfire.length);
break;
#endif
#if defined(GHOST)
case PROTOCOL_CHANNELS_GHOST:
sportSendBuffer(extmodulePulsesData.ghost.pulses, extmodulePulsesData.ghost.length);
break;
#endif
default:
EXTMODULE_TIMER->DIER |= TIM_DIER_CC2IE;
break;
}
}
void extmoduleSendInvertedByte(uint8_t byte)
{
uint16_t time;
uint32_t i;
__disable_irq();
time = getTmr2MHz();
GPIO_SetBits(EXTMODULE_TX_GPIO, EXTMODULE_TX_GPIO_PIN);
while ((uint16_t) (getTmr2MHz() - time) < 34) {
// wait
}
time += 34;
for (i = 0 ; i < 8 ; i += 1) {
if (byte & 1) {
GPIO_ResetBits(EXTMODULE_TX_GPIO, EXTMODULE_TX_GPIO_PIN);
}
else {
GPIO_SetBits(EXTMODULE_TX_GPIO, EXTMODULE_TX_GPIO_PIN);
}
byte >>= 1 ;
while ((uint16_t) (getTmr2MHz() - time) < 35) {
// wait
}
time += 35 ;
}
GPIO_ResetBits(EXTMODULE_TX_GPIO, EXTMODULE_TX_GPIO_PIN);
__enable_irq() ; // No need to wait for the stop bit to complete
while ((uint16_t) (getTmr2MHz() - time) < 34) {
// wait
}
}
extern "C" void EXTMODULE_TIMER_DMA_STREAM_IRQHandler()
{
if (!DMA_GetITStatus(EXTMODULE_TIMER_DMA_STREAM, EXTMODULE_TIMER_DMA_FLAG_TC))
return;
DMA_ClearITPendingBit(EXTMODULE_TIMER_DMA_STREAM, EXTMODULE_TIMER_DMA_FLAG_TC);
EXTMODULE_TIMER->SR &= ~TIM_SR_CC2IF; // Clear flag
EXTMODULE_TIMER->DIER |= TIM_DIER_CC2IE; // Enable this interrupt
}
extern "C" void EXTMODULE_TIMER_CC_IRQHandler()
{
EXTMODULE_TIMER->DIER &= ~TIM_DIER_CC2IE; // Stop this interrupt
EXTMODULE_TIMER->SR &= ~TIM_SR_CC2IF;
if (setupPulsesExternalModule()) {
extmoduleSendNextFrame();
}
}