Posted on May 25, 2016 at 18:20Hi,
I'm setting RTC for wakeup interrupt using HAL as below but the interrupt not happen. Please give me your advice.
Thanks.
P/s:
- These codes are based on CubeMX.
- Other settings required for system running is done by CubeMX generated-code. I don't include it here.
===
int main(void)
{
// setup RTC
RTC_HandleTypeDef hrtc;
hrtc.Instance = RTC;
hrtc.Init.HourFormat = RTC_HOURFORMAT_24;
hrtc.Init.AsynchPrediv = 100;
hrtc.Init.SynchPrediv = 400;
hrtc.Init.OutPut = RTC_OUTPUT_DISABLE;
hrtc.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH;
hrtc.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN;
HAL_RTC_Init(&hrtc)
HAL_RTCEx_SetWakeUpTimer_IT(hrtc, 3, RTC_WAKEUPCLOCK_CK_SPRE_16BITS);
while(1) {
}
}
void HAL_RTC_MspInit(RTC_HandleTypeDef* hrtc)
{
// called by HAL_RTC_Init
if(hrtc->Instance==RTC)
{
__HAL_RCC_RTC_ENABLE();
HAL_NVIC_SetPriority(RTC_WKUP_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(RTC_WKUP_IRQn);
}
}
void RTC_WKUP_IRQHandler(void)
{
printf(''Wakeup Timer Interrupt\n'');
HAL_RTCEx_WakeUpTimerIRQHandler(&hrtc);
}
===
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