STM32L4r5vit rtc wakeup from stopmode2 and unable to re enter stopmode2

[AJ.2]

Hi i am able to enter stop mode but after returning stop mode again i am unable enter stop mode

HAL_RTCEx_DeactivateWakeUpTimer(&hrtc); 

HAL_RTCEx_SetWakeUpTimer_IT(&hrtc, 0x3FFF, RTC_WAKEUPCLOCK_RTCCLK_DIV16);

HAL_SuspendTick();

HAL_PWREx_EnterSTOP2Mode(PWR_STOPENTRY_WFI);  

if(__HAL_PWR_GET_FLAG(PWR_FLAG_SB) != RESET){

/* Clear standby flag */

__HAL_PWR_CLEAR_FLAG(PWR_FLAG_SB);

}

__HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU);

__HAL_PWR_CLEAR_FLAG(PWR_FLAG_WUF2);

__HAL_PWR_CLEAR_FLAG(PWR_EXTI_LINE_PVD);

__HAL_PWR_CLEAR_FLAG(PWR_FLAG_WUFI); 

HAL_ResumeTick();  

[Imen.D]

Hello @AJ.2 ,

I advise you this FAQ to help you in your configuration: How to configure the RTC to wake up the STM32 peri... - STMicroelectronics Community