/**
  ******************************************************************************
  * File Name          : I2C.c
  * Description        : This file provides code for the configuration
  *                      of the I2C instances.
  ******************************************************************************
  *
  * COPYRIGHT(c) 2015 STMicroelectronics
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  *   1. Redistributions of source code must retain the above copyright notice,
  *      this list of conditions and the following disclaimer.
  *   2. Redistributions in binary form must reproduce the above copyright notice,
  *      this list of conditions and the following disclaimer in the documentation
  *      and/or other materials provided with the distribution.
  *   3. Neither the name of STMicroelectronics nor the names of its contributors
  *      may be used to endorse or promote products derived from this software
  *      without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "i2c.h"

#include "gpio.h"

/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

I2C_HandleTypeDef hi2c4;

/* I2C4 init function */
void MX_I2C4_Init(void)
{

  hi2c4.Instance = I2C4;
  hi2c4.Init.Timing = 0x20F04155;
  hi2c4.Init.OwnAddress1 = 0;
  hi2c4.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
  hi2c4.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
  hi2c4.Init.OwnAddress2 = 0;
  hi2c4.Init.OwnAddress2Masks = I2C_OA2_NOMASK;
  hi2c4.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
  hi2c4.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
  HAL_I2C_Init(&hi2c4);

    /**Configure Analogue filter 
    */
  HAL_I2CEx_AnalogFilter_Config(&hi2c4, I2C_ANALOGFILTER_ENABLE);

}

void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c)
{

  GPIO_InitTypeDef GPIO_InitStruct;
  if(hi2c->Instance==I2C4)
  {
  /* USER CODE BEGIN I2C4_MspInit 0 */

  /* USER CODE END I2C4_MspInit 0 */
  
    /**I2C4 GPIO Configuration    
    PD12     ------> I2C4_SCL
    PD13     ------> I2C4_SDA 
    */
    GPIO_InitStruct.Pin = GPIO_PIN_12|GPIO_PIN_13;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF4_I2C4;
    HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);

    /* Peripheral clock enable */
    __HAL_RCC_I2C4_CLK_ENABLE();
  /* USER CODE BEGIN I2C4_MspInit 1 */

  /* USER CODE END I2C4_MspInit 1 */
  }
}

void HAL_I2C_MspDeInit(I2C_HandleTypeDef* hi2c)
{

  if(hi2c->Instance==I2C4)
  {
  /* USER CODE BEGIN I2C4_MspDeInit 0 */

  /* USER CODE END I2C4_MspDeInit 0 */
    /* Peripheral clock disable */
    __HAL_RCC_I2C4_CLK_DISABLE();
  
    /**I2C4 GPIO Configuration    
    PD12     ------> I2C4_SCL
    PD13     ------> I2C4_SDA 
    */
    HAL_GPIO_DeInit(GPIOD, GPIO_PIN_12|GPIO_PIN_13);

  }
  /* USER CODE BEGIN I2C4_MspDeInit 1 */

  /* USER CODE END I2C4_MspDeInit 1 */
} 

/* USER CODE BEGIN 1 */

/* USER CODE END 1 */

/**
  * @}
  */

/**
  * @}
  */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
