C++ (Cpp) __HAL_COMP_EXTI_CLEAR_FLAG Examples

Example #1

File: stm32f0xx_hal_comp.c Project: El-Coder/cantact-fw

/**
  * @brief  Comparator IRQ Handler 
  * @param  hcomp: COMP handle
  * @retval HAL status
  */
void HAL_COMP_IRQHandler(COMP_HandleTypeDef *hcomp)
{
  uint32_t extiline = __HAL_COMP_GET_EXTI_LINE(hcomp->Instance);
  
  /* Check COMP Exti flag */
  if(__HAL_COMP_EXTI_GET_FLAG(extiline) != RESET)
  {
    /* Clear COMP Exti pending bit */
    __HAL_COMP_EXTI_CLEAR_FLAG(extiline);

    /* COMP trigger user callback */
    HAL_COMP_TriggerCallback(hcomp);    
  }  
}

Example #2

File: stm32l1xx_hal_comp.c Project: CastellaFactory/qmk_firmware

/**
  * @brief  Enables the interrupt and starts the comparator
  * @param  hcomp: COMP handle
  * @retval HAL status.
  */
HAL_StatusTypeDef HAL_COMP_Start_IT(COMP_HandleTypeDef *hcomp)
{
    HAL_StatusTypeDef status = HAL_OK;
    uint32_t extiline = 0;

    status = HAL_COMP_Start(hcomp);
    if(status == HAL_OK)
    {
        /* Check the parameter */
        assert_param(IS_COMP_TRIGGERMODE(hcomp->Init.TriggerMode));

        /* Get the Exti Line output configuration */
        extiline = __HAL_COMP_GET_EXTI_LINE(hcomp->Instance);

        /* Configure the rising edge */
        /* COMP TriggerMode set to COMP_TRIGGERMODE_IT_RISING or                  */
        /* COMP_TRIGGERMODE_IT_RISING_FALLING.                                    */
        if((hcomp->Init.TriggerMode & COMP_TRIGGERMODE_IT_RISING) != RESET)
        {
            __HAL_COMP_EXTI_RISING_IT_ENABLE(extiline);
        }
        else
        {
            __HAL_COMP_EXTI_RISING_IT_DISABLE(extiline);
        }

        /* Configure the falling edge */
        /* COMP TriggerMode set to COMP_TRIGGERMODE_IT_FALLING or                 */
        /* COMP_TRIGGERMODE_IT_RISING_FALLING.                                    */
        if((hcomp->Init.TriggerMode & COMP_TRIGGERMODE_IT_FALLING) != RESET)
        {
            __HAL_COMP_EXTI_FALLING_IT_ENABLE(extiline);
        }
        else
        {
            __HAL_COMP_EXTI_FALLING_IT_DISABLE(extiline);
        }

        /* Enable Exti interrupt mode */
        __HAL_COMP_EXTI_ENABLE_IT(extiline);
        /* Clear COMP Exti pending bit */
        __HAL_COMP_EXTI_CLEAR_FLAG(extiline);
    }

    return status;
}