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STM32 LOW_POWER_TIMER update : sleep 

RSF synchro after deepsleep is not specific to Low Power Timer feature
And we have to check if RTC is configured before synchro
pull/5459/head
jeromecoutant 2017-11-07 17:50:56 +01:00
parent 0bf364ea55
commit c13ffaf477
1 changed files with 12 additions and 5 deletions
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17
targets/TARGET_STM/sleep.c
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@ -68,16 +68,16 @@ void hal_deepsleep(void)
#if TARGET_STM32L4
int pwrClockEnabled = __HAL_RCC_PWR_IS_CLK_ENABLED();
int lowPowerModeEnabled = PWR->CR1 & PWR_CR1_LPR;
if (!pwrClockEnabled) {
__HAL_RCC_PWR_CLK_ENABLE();
}
if (lowPowerModeEnabled) {
HAL_PWREx_DisableLowPowerRunMode();
}
HAL_PWREx_EnterSTOP2Mode(PWR_STOPENTRY_WFI);
if (lowPowerModeEnabled) {
HAL_PWREx_EnableLowPowerRunMode();
}
@ -101,8 +101,15 @@ void hal_deepsleep(void)
TimMasterHandle.Instance = TIM_MST;
__HAL_TIM_SET_COUNTER(&TimMasterHandle, EnterTimeUS);
#if DEVICE_LOWPOWERTIMER
rtc_synchronize();
#if DEVICE_RTC
/* Wait for RTC RSF bit synchro if RTC is configured */
#if (TARGET_STM32F2) || (TARGET_STM32F4) || (TARGET_STM32F7)
if (READ_BIT(RCC->BDCR, RCC_BDCR_RTCSEL)) {
#else /* (TARGET_STM32F2) || (TARGET_STM32F4) || (TARGET_STM32F7) */
if (__HAL_RCC_GET_RTC_SOURCE()) {
#endif /* (TARGET_STM32F2) || (TARGET_STM32F4) || (TARGET_STM32F7) */
rtc_synchronize();
}
#endif
}