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stm32/timer: Add Timer support for H7 MCUs.

This commit is contained in:
iabdalkader 2018-02-23 18:53:29 +02:00 committed by Damien George
parent b982b95c18
commit 0989e0cdff
1 changed files with 20 additions and 2 deletions
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22
ports/stm32/timer.c
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@ -229,16 +229,22 @@ void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim) {
// respective APB clock. See DM00031020 Rev 4, page 115.
uint32_t timer_get_source_freq(uint32_t tim_id) {
uint32_t source;
uint32_t latency;
RCC_ClkInitTypeDef rcc_init;
// Get clock config.
HAL_RCC_GetClockConfig(&rcc_init, &latency);
if (tim_id == 1 || (8 <= tim_id && tim_id <= 11)) {
// TIM{1,8,9,10,11} are on APB2
source = HAL_RCC_GetPCLK2Freq();
if ((uint32_t)((RCC->CFGR & RCC_CFGR_PPRE2) >> 3) != RCC_HCLK_DIV1) {
if (rcc_init.APB2CLKDivider != RCC_HCLK_DIV1) {
source *= 2;
}
} else {
// TIM{2,3,4,5,6,7,12,13,14} are on APB1
source = HAL_RCC_GetPCLK1Freq();
if ((uint32_t)(RCC->CFGR & RCC_CFGR_PPRE1) != RCC_HCLK_DIV1) {
if (rcc_init.APB1CLKDivider != RCC_HCLK_DIV1) {
source *= 2;
}
}
@ -690,14 +696,26 @@ STATIC const uint32_t tim_instance_table[MICROPY_HW_MAX_TIMER] = {
TIM_ENTRY(14, TIM8_TRG_COM_TIM14_IRQn),
#endif
#if defined(TIM15)
#if defined(STM32H7)
TIM_ENTRY(15, TIM15_IRQn),
#else
TIM_ENTRY(15, TIM1_BRK_TIM15_IRQn),
#endif
#endif
#if defined(TIM16)
#if defined(STM32H7)
TIM_ENTRY(16, TIM16_IRQn),
#else
TIM_ENTRY(16, TIM1_UP_TIM16_IRQn),
#endif
#endif
#if defined(TIM17)
#if defined(STM32H7)
TIM_ENTRY(17, TIM17_IRQn),
#else
TIM_ENTRY(17, TIM1_TRG_COM_TIM17_IRQn),
#endif
#endif
};
#undef TIM_ENTRY