rebooting in standby mode.

[SYun.2]

Hello, I am developing STM32L072.

The library is using ""I CUBE LRWAN".

Inside the library, I have created the part that enters the OFF mode (STANDBY mode.

But the MCU doesn't consider the RTC and just keeps rebooting.

What else should I consider?

void PWR_EnterOffMode(void)

{

 /* USER CODE BEGIN EnterOffMode_1 */

UTILS_ENTER_CRITICAL_SECTION();

 if(__HAL_PWR_GET_FLAG(PWR_FLAG_SB) != RESET)

 {

  /* Clear Standby flag */

  __HAL_PWR_CLEAR_FLAG(PWR_FLAG_SB); 

 }

DBGMCU->CR = 0;

/*SX1276 DEINIT*/

 Sx_Board_IoDeInit();

Gpio_PreInit();

Gpio_STOP_PowerHold_Init();

 HAL_RTCEx_DeactivateWakeUpTimer(&hrtc);

 HAL_RTCEx_SetWakeUpTimer_IT(&hrtc, 0x2616, RTC_WAKEUPCLOCK_RTCCLK_DIV16);

/* Clear all related wakeup flags */

 __HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU);

 /* Enter the Standby mode */

 HAL_PWR_EnterSTANDBYMode();

UTILS_EXIT_CRITICAL_SECTION();

 /* USER CODE END EnterOffMode_1 */

}

[Peter BENSCH]

Please check SYSTICK whether it is deactivated, otherwise it fires continuously with an interrupt every 1 ms.

Regards

/Peter

[SYun.2]

Thanks for the reply.

But I don't think this is enough.

[SYun.2]

HAL_DeInit();

__HAL_RCC_PWR_CLK_ENABLE();

After adding two more lines, the problem of Jebooting disappeared.

There is an additional problem that the power consumption is fixed at 10 mA.