C++ (Cpp) IS_RNG_CED Examples

Example #1

File: stm32h7xx_hal_rng.c Project: QuantumLeaps/qpcpp

/**
  * @brief  Initializes the RNG peripheral and creates the associated handle.
  * @param  hrng: pointer to a RNG_HandleTypeDef structure that contains
  *                the configuration information for RNG.
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_RNG_Init(RNG_HandleTypeDef *hrng)
{
  /* Check the RNG handle allocation */
  if(hrng == NULL)
  {
    return HAL_ERROR;
  }
  /* Check the parameters */
  assert_param(IS_RNG_ALL_INSTANCE(hrng->Instance));
  assert_param(IS_RNG_CED(hrng->Init.ClockErrorDetection));

  if(hrng->State == HAL_RNG_STATE_RESET)
  {
    /* Allocate lock resource and initialize it */
    hrng->Lock = HAL_UNLOCKED;
    /* Init the low level hardware */
    HAL_RNG_MspInit(hrng);
  }

  /* Change RNG peripheral state */
  hrng->State = HAL_RNG_STATE_BUSY;

  /* CED Configuration */
  MODIFY_REG(hrng->Instance->CR, RNG_CR_CED, hrng->Init.ClockErrorDetection);

  /* Enable the RNG Peripheral */
  __HAL_RNG_ENABLE(hrng);

  /* Initialize the RNG state */
  hrng->State = HAL_RNG_STATE_READY;

  /* Return function status */
  return HAL_OK;
}

Example #2

File: stm32h7xx_hal_rng.c Project: toyowata/mbed

/**
  * @brief  Initializes the RNG peripheral and creates the associated handle.
  * @param  hrng pointer to a RNG_HandleTypeDef structure that contains
  *                the configuration information for RNG.
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_RNG_Init(RNG_HandleTypeDef *hrng)
{
  /* Check the RNG handle allocation */
  if (hrng == NULL)
  {
    return HAL_ERROR;
  }
  /* Check the parameters */
  assert_param(IS_RNG_ALL_INSTANCE(hrng->Instance));
  assert_param(IS_RNG_CED(hrng->Init.ClockErrorDetection));

#if (USE_HAL_RNG_REGISTER_CALLBACKS == 1)
  if (hrng->State == HAL_RNG_STATE_RESET)
  {
    /* Allocate lock resource and initialize it */
    hrng->Lock = HAL_UNLOCKED;

    hrng->ReadyDataCallback  = HAL_RNG_ReadyDataCallback;  /* Legacy weak ReadyDataCallback  */
    hrng->ErrorCallback      = HAL_RNG_ErrorCallback;      /* Legacy weak ErrorCallback      */

    if (hrng->MspInitCallback == NULL)
    {
      hrng->MspInitCallback = HAL_RNG_MspInit; /* Legacy weak MspInit  */
    }

    /* Init the low level hardware */
    hrng->MspInitCallback(hrng);
  }
#else
  if (hrng->State == HAL_RNG_STATE_RESET)
  {
    /* Allocate lock resource and initialize it */
    hrng->Lock = HAL_UNLOCKED;

    /* Init the low level hardware */
    HAL_RNG_MspInit(hrng);
  }
#endif /* USE_HAL_RNG_REGISTER_CALLBACKS */

  /* Change RNG peripheral state */
  hrng->State = HAL_RNG_STATE_BUSY;

  /* Clock Error Detection Configuration */
  MODIFY_REG(hrng->Instance->CR, RNG_CR_CED, hrng->Init.ClockErrorDetection);

  /* Enable the RNG Peripheral */
  __HAL_RNG_ENABLE(hrng);

  /* Initialize the RNG state */
  hrng->State = HAL_RNG_STATE_READY;

  /* Initialise the error code */
  hrng->ErrorCode = HAL_RNG_ERROR_NONE;

  /* Return function status */
  return HAL_OK;
}