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STM32: RTC: Call irq_handler whenever interrupt fires 

lp_ticker driver is the known registered user of RTC handler API.

In case, a lp_ticker is set in the past, the lp_ticker_fire_interrupt
will be called which itself sets the RTC interrupt as pending by calling
NVIC_SetPendingIRQ(RTC_WKUP_IRQn). This all happens without actual
programing of the RTC wake-up.

As a result the RTC HW and corresponding HAL layer doesn't expect an
interrupt to happen and will not call HAL_RTCEx_WakeUpTimerEventCallback.

To sove this situation, we will not use HAL_RTCEx_WakeUpTimerEventCallback
weak definition but rather call handler whenever an RTC interrupt fires.
pull/5289/head
Laurent MEUNIER 2017-10-10 17:04:29 +02:00
parent df88a9dcc2
commit e15ebd3c53
1 changed files with 2 additions and 5 deletions
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7
targets/TARGET_STM/rtc_api.c
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@ -295,13 +295,10 @@ int rtc_isenabled(void)
static void RTC_IRQHandler(void) static void RTC_IRQHandler(void)
{ {
/* Update HAL state */
HAL_RTCEx_WakeUpTimerIRQHandler(&RtcHandle); HAL_RTCEx_WakeUpTimerIRQHandler(&RtcHandle);
} /* In case of registered handler, call it. */
void HAL_RTCEx_WakeUpTimerEventCallback(RTC_HandleTypeDef *hrtc)
{
if (irq_handler) { if (irq_handler) {
// Fire the user callback
irq_handler(); irq_handler();
} }
} }