Determine STM32 reset source with HAL

[Pedram]

Posted on February 04, 2018 at 12:15

Hello friends

How can Determine STM32 reset source with HAL ?

STM32F407ZET6

Thanks

[Tesla DeLorean]

Posted on February 04, 2018 at 15:05

  /* Enable Power Clock */

  __HAL_RCC_PWR_CLK_ENABLE();

  /* Check and Clear the Wakeup flag */

  if(__HAL_PWR_GET_FLAG(PWR_FLAG_WU) != RESET)

  {

    __HAL_PWR_CLEAR_FLAG(PWR_FLAG_WU);

  }

  /* Check if the system was resumed from StandBy mode */

  if(__HAL_PWR_GET_FLAG(PWR_FLAG_SB) != RESET)

  {

    /* Clear StandBy flag */

    __HAL_PWR_CLEAR_FLAG(PWR_FLAG_SB);

}

  {

    /* Check if the Power On Reset flag is set */

    if (__HAL_RCC_GET_FLAG(RCC_FLAG_PORRST) != RESET)

    {

      /* Turn on LED1: Power on reset occurred */

      BSP_LED_On(LED1);

    }

    /* Check if Pin Reset flag is set */

    if (__HAL_RCC_GET_FLAG(RCC_FLAG_PINRST) != RESET)

    {

      /* Turn on LED1: External reset occurred */

      BSP_LED_On(LED1);

    }

    /* Clear source Reset Flag */

    __HAL_RCC_CLEAR_RESET_FLAGS();

  }

[rm2399]

Posted on February 04, 2018 at 15:07

Find the information in stm32f4xx_hal_rcc.h at line 1227ff

/** @brief  Check RCC flag is set or not.

  * @param  __FLAG__ specifies the flag to check.

  *         This parameter can be one of the following values:

  *            @arg RCC_FLAG_HSIRDY: HSI oscillator clock ready.

  *            @arg RCC_FLAG_HSERDY: HSE oscillator clock ready.

  *            @arg RCC_FLAG_PLLRDY: Main PLL clock ready.

  *            @arg RCC_FLAG_PLLI2SRDY: PLLI2S clock ready.

  *            @arg RCC_FLAG_LSERDY: LSE oscillator clock ready.

  *            @arg RCC_FLAG_LSIRDY: LSI oscillator clock ready.

  *            @arg RCC_FLAG_BORRST: POR/PDR or BOR reset.

  *            @arg RCC_FLAG_PINRST: Pin reset.

  *            @arg RCC_FLAG_PORRST: POR/PDR reset.

  *            @arg RCC_FLAG_SFTRST: Software reset.

  *            @arg RCC_FLAG_IWDGRST: Independent Watchdog reset.

  *            @arg RCC_FLAG_WWDGRST: Window Watchdog reset.

  *            @arg RCC_FLAG_LPWRRST: Low Power reset.

  * @retval The new state of __FLAG__ (TRUE or FALSE).

  */

#define RCC_FLAG_MASK  ((uint8_t)0x1FU)

#define __HAL_RCC_GET_FLAG(__FLAG__) (((((((__FLAG__) >> 5U) == 1U)? RCC->CR :((((__FLAG__) >> 5U) == 2U) ? RCC->BDCR :((((__FLAG__) >> 5U) == 3U)? RCC->CSR :RCC->CIR))) & (1U << ((__FLAG__) & RCC_FLAG_MASK)))!= 0U)? 1U : 0U)