/**
* @brief I2C MSP De-Initialization
* This function frees the hardware resources used in this example:
* - Disable the Peripheral's clock
* - Revert GPIO, DMA and NVIC configuration to their default state
* @param hi2c: I2C handle pointer
* @retval None
*/
void HAL_I2C_MspDeInit(I2C_HandleTypeDef *hi2c)
{
static DMA_HandleTypeDef hdma_tx;
static DMA_HandleTypeDef hdma_rx;
/*##-1- Reset peripherals ##################################################*/
I2Cx_FORCE_RESET();
I2Cx_RELEASE_RESET();
/*##-2- Disable peripherals and GPIO Clocks ################################*/
/* Configure I2C Tx as alternate function */
HAL_GPIO_DeInit(I2Cx_SCL_GPIO_PORT, I2Cx_SCL_PIN);
/* Configure I2C Rx as alternate function */
HAL_GPIO_DeInit(I2Cx_SDA_GPIO_PORT, I2Cx_SDA_PIN);
/*##-3- Disable the DMA Streams ############################################*/
/* De-Initialize the DMA Stream associate to transmission process */
HAL_DMA_DeInit(&hdma_tx);
/* De-Initialize the DMA Stream associate to reception process */
HAL_DMA_DeInit(&hdma_rx);
/*##-4- Disable the NVIC for DMA ###########################################*/
HAL_NVIC_DisableIRQ(I2Cx_DMA_TX_IRQn);
HAL_NVIC_DisableIRQ(I2Cx_DMA_RX_IRQn);
}
/**
* @brief I2C MSP De-Initialization
* This function frees the hardware resources used in this example:
* - Disable the Peripheral's clock
* - Revert GPIO, DMA and NVIC configuration to their default state
* @param hi2c: I2C handle pointer
* @retval None
*/
void HAL_I2C_MspDeInit(I2C_HandleTypeDef *hi2c)
{
/*##-1- Reset peripherals ##################################################*/
I2Cx_FORCE_RESET();
I2Cx_RELEASE_RESET();
/*##-2- Disable peripherals and GPIO Clocks ################################*/
/* Configure I2C Tx as alternate function */
HAL_GPIO_DeInit(I2Cx_SCL_GPIO_PORT, I2Cx_SCL_PIN);
/* Configure I2C Rx as alternate function */
HAL_GPIO_DeInit(I2Cx_SDA_GPIO_PORT, I2Cx_SDA_PIN);
}