diff options
Diffstat (limited to 'os/hal/platforms/STM32/gpt_lld.c')
| -rw-r--r-- | os/hal/platforms/STM32/gpt_lld.c | 60 |
1 files changed, 29 insertions, 31 deletions
diff --git a/os/hal/platforms/STM32/gpt_lld.c b/os/hal/platforms/STM32/gpt_lld.c index f7a9226ad..34468ccc3 100644 --- a/os/hal/platforms/STM32/gpt_lld.c +++ b/os/hal/platforms/STM32/gpt_lld.c @@ -192,7 +192,7 @@ CH_IRQ_HANDLER(TIM5_IRQHandler) { #if STM32_GPT_USE_TIM8
/**
- * @brief TIM5 interrupt handler.
+ * @brief TIM8 interrupt handler.
*
* @isr
*/
@@ -219,37 +219,37 @@ void gpt_lld_init(void) { #if STM32_GPT_USE_TIM1
/* Driver initialization.*/
- GPTD1.tim = TIM1;
+ GPTD1.tim = STM32_TIM1;
gptObjectInit(&GPTD1);
#endif
#if STM32_GPT_USE_TIM2
/* Driver initialization.*/
- GPTD2.tim = TIM2;
+ GPTD2.tim = STM32_TIM2;
gptObjectInit(&GPTD2);
#endif
#if STM32_GPT_USE_TIM3
/* Driver initialization.*/
- GPTD3.tim = TIM3;
+ GPTD3.tim = STM32_TIM3;
gptObjectInit(&GPTD3);
#endif
#if STM32_GPT_USE_TIM4
/* Driver initialization.*/
- GPTD4.tim = TIM4;
+ GPTD4.tim = STM32_TIM4;
gptObjectInit(&GPTD4);
#endif
#if STM32_GPT_USE_TIM5
/* Driver initialization.*/
- GPTD5.tim = TIM5;
+ GPTD5.tim = STM32_TIM5;
gptObjectInit(&GPTD5);
#endif
#if STM32_GPT_USE_TIM8
/* Driver initialization.*/
- GPTD5.tim = TIM8;
+ GPTD8.tim = STM32_TIM8;
gptObjectInit(&GPTD8);
#endif
}
@@ -268,9 +268,8 @@ void gpt_lld_start(GPTDriver *gptp) { /* Clock activation.*/
#if STM32_GPT_USE_TIM1
if (&GPTD1 == gptp) {
- RCC->APB2ENR |= RCC_APB2ENR_TIM1EN;
- RCC->APB2RSTR = RCC_APB2RSTR_TIM1RST;
- RCC->APB2RSTR = 0;
+ rccEnableTIM1(FALSE);
+ rccResetTIM1();
NVICEnableVector(TIM1_UP_IRQn,
CORTEX_PRIORITY_MASK(STM32_GPT_TIM1_IRQ_PRIORITY));
gptp->clock = STM32_TIMCLK2;
@@ -278,9 +277,8 @@ void gpt_lld_start(GPTDriver *gptp) { #endif
#if STM32_GPT_USE_TIM2
if (&GPTD2 == gptp) {
- RCC->APB1ENR |= RCC_APB1ENR_TIM2EN;
- RCC->APB1RSTR = RCC_APB1RSTR_TIM2RST;
- RCC->APB1RSTR = 0;
+ rccEnableTIM2(FALSE);
+ rccResetTIM2();
NVICEnableVector(TIM2_IRQn,
CORTEX_PRIORITY_MASK(STM32_GPT_TIM2_IRQ_PRIORITY));
gptp->clock = STM32_TIMCLK1;
@@ -288,9 +286,8 @@ void gpt_lld_start(GPTDriver *gptp) { #endif
#if STM32_GPT_USE_TIM3
if (&GPTD3 == gptp) {
- RCC->APB1ENR |= RCC_APB1ENR_TIM3EN;
- RCC->APB1RSTR = RCC_APB1RSTR_TIM3RST;
- RCC->APB1RSTR = 0;
+ rccEnableTIM3(FALSE);
+ rccResetTIM3();
NVICEnableVector(TIM3_IRQn,
CORTEX_PRIORITY_MASK(STM32_GPT_TIM3_IRQ_PRIORITY));
gptp->clock = STM32_TIMCLK1;
@@ -298,9 +295,8 @@ void gpt_lld_start(GPTDriver *gptp) { #endif
#if STM32_GPT_USE_TIM4
if (&GPTD4 == gptp) {
- RCC->APB1ENR |= RCC_APB1ENR_TIM4EN;
- RCC->APB1RSTR = RCC_APB1RSTR_TIM4RST;
- RCC->APB1RSTR = 0;
+ rccEnableTIM4(FALSE);
+ rccResetTIM4();
NVICEnableVector(TIM4_IRQn,
CORTEX_PRIORITY_MASK(STM32_GPT_TIM4_IRQ_PRIORITY));
gptp->clock = STM32_TIMCLK1;
@@ -309,9 +305,8 @@ void gpt_lld_start(GPTDriver *gptp) { #if STM32_GPT_USE_TIM5
if (&GPTD5 == gptp) {
- RCC->APB1ENR |= RCC_APB1ENR_TIM5EN;
- RCC->APB1RSTR = RCC_APB1RSTR_TIM5RST;
- RCC->APB1RSTR = 0;
+ rccEnableTIM5(FALSE);
+ rccResetTIM5();
NVICEnableVector(TIM5_IRQn,
CORTEX_PRIORITY_MASK(STM32_GPT_TIM5_IRQ_PRIORITY));
gptp->clock = STM32_TIMCLK1;
@@ -320,9 +315,8 @@ void gpt_lld_start(GPTDriver *gptp) { #if STM32_GPT_USE_TIM8
if (&GPTD8 == gptp) {
- RCC->APB2ENR |= RCC_APB2ENR_TIM8EN;
- RCC->APB2RSTR = RCC_APB2RSTR_TIM8RST;
- RCC->APB2RSTR = 0;
+ rccEnableTIM8(FALSE);
+ rccResetTIM8();
NVICEnableVector(TIM8_UP_IRQn,
CORTEX_PRIORITY_MASK(STM32_GPT_TIM8_IRQ_PRIORITY));
gptp->clock = STM32_TIMCLK2;
@@ -359,37 +353,37 @@ void gpt_lld_stop(GPTDriver *gptp) { #if STM32_GPT_USE_TIM1
if (&GPTD1 == gptp) {
NVICDisableVector(TIM1_UP_IRQn);
- RCC->APB2ENR &= ~RCC_APB2ENR_TIM1EN;
+ rccDisableTIM1(FALSE);
}
#endif
#if STM32_GPT_USE_TIM2
if (&GPTD2 == gptp) {
NVICDisableVector(TIM2_IRQn);
- RCC->APB1ENR &= ~RCC_APB1ENR_TIM2EN;
+ rccDisableTIM2(FALSE);
}
#endif
#if STM32_GPT_USE_TIM3
if (&GPTD3 == gptp) {
NVICDisableVector(TIM3_IRQn);
- RCC->APB1ENR &= ~RCC_APB1ENR_TIM3EN;
+ rccDisableTIM3(FALSE);
}
#endif
#if STM32_GPT_USE_TIM4
if (&GPTD4 == gptp) {
NVICDisableVector(TIM4_IRQn);
- RCC->APB1ENR &= ~RCC_APB1ENR_TIM4EN;
+ rccDisableTIM4(FALSE);
}
#endif
#if STM32_GPT_USE_TIM5
if (&GPTD5 == gptp) {
NVICDisableVector(TIM5_IRQn);
- RCC->APB1ENR &= ~RCC_APB1ENR_TIM5EN;
+ rccDisableTIM5(FALSE);
}
#endif
#if STM32_GPT_USE_TIM8
if (&GPTD8 == gptp) {
NVICDisableVector(TIM8_UP_IRQn);
- RCC->APB2ENR &= ~RCC_APB2ENR_TIM8EN;
+ rccDisableTIM8(FALSE);
}
#endif
}
@@ -407,6 +401,10 @@ void gpt_lld_start_timer(GPTDriver *gptp, gptcnt_t interval) { gptp->tim->ARR = interval - 1; /* Time constant. */
gptp->tim->EGR = TIM_EGR_UG; /* Update event. */
+ gptp->tim->CNT = 0; /* Reset counter. */
+ /* NOTE: After generating the UG event it takes several clock cycles before
+ SR bit 0 goes to 1. This is because the clearing of CNT has been inserted
+ before the clearing of SR, to give it some time.*/
gptp->tim->SR = 0; /* Clear pending IRQs (if any). */
gptp->tim->DIER = TIM_DIER_UIE; /* Update Event IRQ enabled. */
gptp->tim->CR1 = TIM_CR1_URS | TIM_CR1_CEN;
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