Exemplos de IS_I2C_ANALOG_FILTER em C++ (Cpp)

Exemplo n.º 1

Arquivo: stm32f4xx_hal_i2c_ex.c Projeto: M2I-CySat/CySat-SatelliteSoftware

/**
  * @brief  Configures I2C Analog noise filter. 
  * @param  hi2c: pointer to a I2C_HandleTypeDef structure that contains
  *                the configuration information for the specified I2Cx peripheral.
  * @param  AnalogFilter: new state of the Analog filter.
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_I2CEx_ConfigAnalogFilter(I2C_HandleTypeDef *hi2c, uint32_t AnalogFilter)
{
  /* Check the parameters */
  assert_param(IS_I2C_ALL_INSTANCE(hi2c->Instance));
  assert_param(IS_I2C_ANALOG_FILTER(AnalogFilter));
  
  if(hi2c->State == HAL_I2C_STATE_READY)
  {
    hi2c->State = HAL_I2C_STATE_BUSY;

    /* Disable the selected I2C peripheral */
    __HAL_I2C_DISABLE(hi2c);    

    /* Reset I2Cx ANOFF bit */
    hi2c->Instance->FLTR &= ~(I2C_FLTR_ANOFF);

    /* Disable the analog filter */
    hi2c->Instance->FLTR |= AnalogFilter;

    __HAL_I2C_ENABLE(hi2c); 

    hi2c->State = HAL_I2C_STATE_READY;

    return HAL_OK;
  }
  else
  {
    return HAL_BUSY;
  }
}

Exemplo n.º 2

Arquivo: stm32l4xx_hal_i2c_ex.c Projeto: welter/STM32L476-radar

/**
  * @brief  Configures I2C Analog noise filter.
  * @param  hi2c : pointer to a I2C_HandleTypeDef structure that contains
  *                the configuration information for the specified I2Cx peripheral.
  * @param  AnalogFilter : new state of the Analog filter.
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_I2CEx_ConfigAnalogFilter(I2C_HandleTypeDef *hi2c, uint32_t AnalogFilter)
{
    /* Check the parameters */
    assert_param(IS_I2C_ALL_INSTANCE(hi2c->Instance));
    assert_param(IS_I2C_ANALOG_FILTER(AnalogFilter));

    if((hi2c->State == HAL_I2C_STATE_BUSY) || (hi2c->State == HAL_I2C_STATE_MASTER_BUSY_TX) || (hi2c->State == HAL_I2C_STATE_MASTER_BUSY_RX)
            || (hi2c->State == HAL_I2C_STATE_SLAVE_BUSY_TX) || (hi2c->State == HAL_I2C_STATE_SLAVE_BUSY_RX))
    {
        return HAL_BUSY;
    }

    /* Process Locked */
    __HAL_LOCK(hi2c);

    hi2c->State = HAL_I2C_STATE_BUSY;

    /* Disable the selected I2C peripheral */
    __HAL_I2C_DISABLE(hi2c);

    /* Reset I2Cx ANOFF bit */
    hi2c->Instance->CR1 &= ~(I2C_CR1_ANFOFF);

    /* Set analog filter bit*/
    hi2c->Instance->CR1 |= AnalogFilter;

    __HAL_I2C_ENABLE(hi2c);

    hi2c->State = HAL_I2C_STATE_READY;

    /* Process Unlocked */
    __HAL_UNLOCK(hi2c);

    return HAL_OK;
}