C++ (Cpp) __HAL_COMP_LOCK Examples

Example #1

File: stm32l0xx_hal_comp.c Project: Archcady/mbed-os

/**
  * @brief  Lock the selected comparator configuration.
  * @note   A system reset is required to unlock the comparator configuration.
  * @note   Locking the comparator from reset state is possible
  *         if __HAL_RCC_SYSCFG_CLK_ENABLE() is being called before.
  * @param  hcomp  COMP handle
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_COMP_Lock(COMP_HandleTypeDef *hcomp)
{
  HAL_StatusTypeDef status = HAL_OK;
  
  /* Check the COMP handle allocation and lock status */
  if((hcomp == NULL) || (__HAL_COMP_IS_LOCKED(hcomp)))
  {
    status = HAL_ERROR;
  }
  else
  {
    /* Check the parameter */
    assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance));
    
    /* Set HAL COMP handle state */
    hcomp->State = ((HAL_COMP_StateTypeDef)(hcomp->State | COMP_STATE_BITFIELD_LOCK));
  }
  
  if(status == HAL_OK)
  {
    /* Set the lock bit corresponding to selected comparator */
    __HAL_COMP_LOCK(hcomp);
  }
  
  return status; 
}

Example #2

File: stm32l4xx_hal_comp.c Project: genocidex1/blue

/**
  * @brief  Lock the selected comparator configuration. 
  * @note   A system reset is required to unlock the comparator configuration.
  * @param  hcomp  COMP handle
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_COMP_Lock(COMP_HandleTypeDef *hcomp)
{
  HAL_StatusTypeDef status = HAL_OK;

  /* Check the COMP handle allocation and lock status */
  if((hcomp == NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != RESET))
  {
    status = HAL_ERROR;
  }
  else
  {
    /* Check the parameter */
    assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance));

    /* Set lock flag on state */
    switch(hcomp->State)
    {
    case HAL_COMP_STATE_BUSY:
      hcomp->State = HAL_COMP_STATE_BUSY_LOCKED;
      break;
    case HAL_COMP_STATE_READY:
      hcomp->State = HAL_COMP_STATE_READY_LOCKED;
      break;
    default:
      /* unexpected state */
      status = HAL_ERROR;
      break;
    }
  }
  
  if(status == HAL_OK)
  {
    /* Set the lock bit corresponding to selected comparator */
    __HAL_COMP_LOCK(hcomp);
  }
  
  return status; 
}