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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file i2c.c
* @brief This file provides code for the configuration
* of the I2C instances.
******************************************************************************
* @attention
*
* Copyright (c) 2026 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "i2c.h"
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
I2C_HandleTypeDef hi2c4;
/* I2C4 init function */
void MX_I2C4_Init(void)
{
/* USER CODE BEGIN I2C4_Init 0 */
/* USER CODE END I2C4_Init 0 */
/* USER CODE BEGIN I2C4_Init 1 */
/* USER CODE END I2C4_Init 1 */
hi2c4.Instance = I2C4;
hi2c4.Init.Timing = 0x00201E2D;
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;
if (HAL_I2C_Init(&hi2c4) != HAL_OK)
{
Error_Handler();
}
/** Configure Analogue filter
*/
if (HAL_I2CEx_ConfigAnalogFilter(&hi2c4, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
{
Error_Handler();
}
/** Configure Digital filter
*/
if (HAL_I2CEx_ConfigDigitalFilter(&hi2c4, 0) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN I2C4_Init 2 */
/* USER CODE END I2C4_Init 2 */
}
void HAL_I2C_MspInit(I2C_HandleTypeDef* i2cHandle)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
if(i2cHandle->Instance==I2C4)
{
/* USER CODE BEGIN I2C4_MspInit 0 */
/* USER CODE END I2C4_MspInit 0 */
__HAL_RCC_GPIOB_CLK_ENABLE();
/**I2C4 GPIO Configuration
PB8 ------> I2C4_SCL
PB9 ------> I2C4_SDA
*/
GPIO_InitStruct.Pin = GPIO_PIN_8|GPIO_PIN_9;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF6_I2C4;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* I2C4 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* i2cHandle)
{
if(i2cHandle->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
PB8 ------> I2C4_SCL
PB9 ------> I2C4_SDA
*/
HAL_GPIO_DeInit(GPIOB, GPIO_PIN_8);
HAL_GPIO_DeInit(GPIOB, GPIO_PIN_9);
/* USER CODE BEGIN I2C4_MspDeInit 1 */
/* USER CODE END I2C4_MspDeInit 1 */
}
}
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
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