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[Horus] I forgot this part for PPM pulses ...

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This commit is contained in:
Bertrand Songis
2016-06-08 22:19:54 +02:00
parent 5bcde76ca0
commit f488ebc1f5
4 changed files with 17 additions and 15 deletions
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radio/src/targets/horus/extmodule_driver.cpp
+8 -10
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@@ -96,9 +96,12 @@ void extmodulePpmStart()
EXTMODULE_TIMER->PSC = EXTMODULE_TIMER_FREQ / 2000000 - 1; // 0.5uS (2Mhz)
EXTMODULE_TIMER->ARR = 45000;
// CH1 PWM mode 1, CH1 out is OFF if CNT<CCR1(delay) and ON if bigger (up to AAR,which is pulse length)
EXTMODULE_TIMER->CCMR1 = TIM_CCMR1_OC1M_1 | TIM_CCMR1_OC1M_2 | TIM_CCMR1_OC2PE; // PWM mode 1
EXTMODULE_TIMER->EGR = 1; // Reloads register vales now
EXTMODULE_TIMER->CCR1 = GET_PPM_DELAY(EXTERNAL_MODULE)*2;
EXTMODULE_TIMER->CCER = TIM_CCER_CC1E | (GET_PPM_POLARITY(EXTERNAL_MODULE) ? TIM_CCER_CC1P : 0);
EXTMODULE_TIMER->CCMR1 = TIM_CCMR1_OC1M_2 | TIM_CCMR1_OC1M_0; // Force O/P high
EXTMODULE_TIMER->EGR = 1; // Reloads register values now
EXTMODULE_TIMER->DIER |= TIM_DIER_UDE; // Update DMA request
EXTMODULE_TIMER->CCMR1 = TIM_CCMR1_OC1M_1 | TIM_CCMR1_OC1M_2 | TIM_CCMR1_OC2PE; // PWM mode 1
EXTMODULE_TIMER->CR1 |= TIM_CR1_CEN; // Start timer
extmoduleSendNextFrame();
@@ -109,13 +112,6 @@ void extmodulePpmStart()
NVIC_SetPriority(EXTMODULE_TIMER_IRQn, 7);
}
void set_external_ppm_parameters(uint32_t idleTime, uint32_t delay, uint32_t positive)
{
EXTMODULE_TIMER->CCR2 = idleTime;
EXTMODULE_TIMER->CCR1 = delay;
EXTMODULE_TIMER->CCER = TIM_CCER_CC1E | (positive ? 0 : TIM_CCER_CC1P);
}
void extmodulePxxStart()
{
EXTERNAL_MODULE_ON();
@@ -217,6 +213,8 @@ void extmoduleCrossfireStart()
void extmoduleSendNextFrame()
{
if (s_current_protocol[EXTERNAL_MODULE] == PROTO_PPM) {
EXTMODULE_TIMER->CCR1 = GET_PPM_DELAY(EXTERNAL_MODULE)*2;
EXTMODULE_TIMER->CCER = TIM_CCER_CC1E | (GET_PPM_POLARITY(EXTERNAL_MODULE) ? TIM_CCER_CC1P : 0);
EXTMODULE_DMA_STREAM->CR &= ~DMA_SxCR_EN; // Disable DMA
EXTMODULE_DMA_STREAM->CR |= EXTMODULE_DMA_CHANNEL | DMA_SxCR_DIR_0 | DMA_SxCR_MINC | DMA_SxCR_PSIZE_1 | DMA_SxCR_MSIZE_1 | DMA_SxCR_PL_0 | DMA_SxCR_PL_1;
EXTMODULE_DMA_STREAM->PAR = CONVERT_PTR_UINT(&EXTMODULE_TIMER->ARR);
@@ -253,7 +251,7 @@ extern "C" void EXTMODULE_DMA_IRQHandler()
DMA_ClearITPendingBit(EXTMODULE_DMA_STREAM, EXTMODULE_DMA_FLAG_TC);
uint32_t arr = EXTMODULE_TIMER->ARR;
if (arr > 4000) {
if (0 && arr > 5000) {
EXTMODULE_TIMER->CCR2 = arr - 4000; // 2mS in advance
EXTMODULE_TIMER->SR &= ~TIM_SR_CC2IF; // Clear flag
EXTMODULE_TIMER->DIER |= TIM_DIER_CC2IE; // Enable this interrupt