BUG: stm32f4xx_hal_rtc_ex.c (RTC)

[smhhadima]

Posted on August 04, 2015 at 15:50

Can someone from ST answer this?

Bug in HAL library (HAL_RTCEx_SetWakeUpTimer_IT)

*Bug: HAL_RTC weakup does not interrupt

*Reason: 

 The library  stm32f4xx_hal_rtc_ex.h   does not clear the interrupt flag before enabling the interrupt 

*Solution:

 Manually add this line (clear the interrupt flag): /* Clear the Flags in the RTC_ISR register */    RTC->ISR = (uint32_t)((uint32_t)(~((RTC_FLAG_WUTF | RTC_ISR_INIT)& 0x0000FFFF) | (uint32_t)(RTC->ISR & RTC_ISR_INIT)));before  the /* RTC WakeUpTimer Interrupt Configuration: EXTI configuration */ line*ST please fix file:@file    stm32f4xx_hal_rtc_ex.c  * @author  MCD Application Team  * @version V1.3.2  * @date    26-June-2015 #bug-rtc-weakup-interrupt

[tm3341]

Posted on August 04, 2015 at 16:17

This is not a bug.

Just clear flag by yourself before you call enable function. That's all.