diff options
| -rw-r--r-- | ports/stm32/rtc.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/ports/stm32/rtc.c b/ports/stm32/rtc.c index 4b9fbbda5..a7c3f2068 100644 --- a/ports/stm32/rtc.c +++ b/ports/stm32/rtc.c @@ -342,18 +342,24 @@ STATIC void PYB_RTC_MspInit_Kick(RTC_HandleTypeDef *hrtc, bool rtc_use_lse, bool rtc_need_init_finalise = true; } -#define PYB_LSE_TIMEOUT_VALUE 1000 // ST docs spec 2000 ms LSE startup, seems to be too pessimistic -#define PYB_LSI_TIMEOUT_VALUE 500 // this is way too pessimistic, typ. < 1ms -#define PYB_BYP_TIMEOUT_VALUE 150 +#ifndef MICROPY_HW_RTC_LSE_TIMEOUT_MS +#define MICROPY_HW_RTC_LSE_TIMEOUT_MS 1000 // ST docs spec 2000 ms LSE startup, seems to be too pessimistic +#endif +#ifndef MICROPY_HW_RTC_LSI_TIMEOUT_MS +#define MICROPY_HW_RTC_LSI_TIMEOUT_MS 500 // this is way too pessimistic, typ. < 1ms +#endif +#ifndef MICROPY_HW_RTC_BYP_TIMEOUT_MS +#define MICROPY_HW_RTC_BYP_TIMEOUT_MS 150 +#endif STATIC HAL_StatusTypeDef PYB_RTC_MspInit_Finalise(RTC_HandleTypeDef *hrtc) { // we already had a kick so now wait for the corresponding ready state... if (rtc_use_lse) { // we now have to wait for LSE ready or timeout - uint32_t timeout = PYB_LSE_TIMEOUT_VALUE; + uint32_t timeout = MICROPY_HW_RTC_LSE_TIMEOUT_MS; #if MICROPY_HW_RTC_USE_BYPASS if (RCC->BDCR & RCC_BDCR_LSEBYP) { - timeout = PYB_BYP_TIMEOUT_VALUE; + timeout = MICROPY_HW_RTC_BYP_TIMEOUT_MS; } #endif uint32_t tickstart = rtc_startup_tick; @@ -366,7 +372,7 @@ STATIC HAL_StatusTypeDef PYB_RTC_MspInit_Finalise(RTC_HandleTypeDef *hrtc) { // we now have to wait for LSI ready or timeout uint32_t tickstart = rtc_startup_tick; while (__HAL_RCC_GET_FLAG(RCC_FLAG_LSIRDY) == RESET) { - if ((HAL_GetTick() - tickstart ) > PYB_LSI_TIMEOUT_VALUE) { + if ((HAL_GetTick() - tickstart ) > MICROPY_HW_RTC_LSI_TIMEOUT_MS) { return HAL_TIMEOUT; } } |