/**
|
******************************************************************************
|
* @file i2c.c
|
* @brief This file provides code for the configuration
|
* of the I2C instances.
|
******************************************************************************
|
* @attention
|
*
|
* <h2><center>© Copyright (c) 2021 STMicroelectronics.
|
* All rights reserved.</center></h2>
|
*
|
* This software component is licensed by ST under BSD 3-Clause license,
|
* the "License"; You may not use this file except in compliance with the
|
* License. You may obtain a copy of the License at:
|
* opensource.org/licenses/BSD-3-Clause
|
*
|
******************************************************************************
|
*/
|
|
/* Includes ------------------------------------------------------------------*/
|
#include "i2c.h"
|
|
/* USER CODE BEGIN 0 */
|
|
/* USER CODE END 0 */
|
|
I2C_HandleTypeDef hi2c2;
|
|
/* I2C2 init function */
|
void MX_I2C2_Init(void)
|
{
|
|
/* USER CODE BEGIN I2C2_Init 0 */
|
|
/* USER CODE END I2C2_Init 0 */
|
|
/* USER CODE BEGIN I2C2_Init 1 */
|
|
/* USER CODE END I2C2_Init 1 */
|
hi2c2.Instance = I2C2;
|
hi2c2.Init.Timing = 0x10909CEC;
|
hi2c2.Init.OwnAddress1 = 0;
|
hi2c2.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
|
hi2c2.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
|
hi2c2.Init.OwnAddress2 = 0;
|
hi2c2.Init.OwnAddress2Masks = I2C_OA2_NOMASK;
|
hi2c2.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
|
hi2c2.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
|
if (HAL_I2C_Init(&hi2c2) != HAL_OK)
|
{
|
Error_Handler();
|
}
|
/** Configure Analogue filter
|
*/
|
if (HAL_I2CEx_ConfigAnalogFilter(&hi2c2, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
|
{
|
Error_Handler();
|
}
|
/** Configure Digital filter
|
*/
|
if (HAL_I2CEx_ConfigDigitalFilter(&hi2c2, 0) != HAL_OK)
|
{
|
Error_Handler();
|
}
|
/* USER CODE BEGIN I2C2_Init 2 */
|
|
/* USER CODE END I2C2_Init 2 */
|
|
}
|
|
void HAL_I2C_MspInit(I2C_HandleTypeDef* i2cHandle)
|
{
|
|
GPIO_InitTypeDef GPIO_InitStruct = {0};
|
RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
|
if(i2cHandle->Instance==I2C2)
|
{
|
/* USER CODE BEGIN I2C2_MspInit 0 */
|
|
/* USER CODE END I2C2_MspInit 0 */
|
/** Initializes the peripherals clock
|
*/
|
PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_I2C2;
|
PeriphClkInit.I2c2ClockSelection = RCC_I2C2CLKSOURCE_PCLK1;
|
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
|
{
|
Error_Handler();
|
}
|
|
__HAL_RCC_GPIOB_CLK_ENABLE();
|
/**I2C2 GPIO Configuration
|
PB13 ------> I2C2_SCL
|
PB14 ------> I2C2_SDA
|
*/
|
GPIO_InitStruct.Pin = GPIO_PIN_13|GPIO_PIN_14;
|
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
|
GPIO_InitStruct.Pull = GPIO_NOPULL;
|
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
|
GPIO_InitStruct.Alternate = GPIO_AF4_I2C2;
|
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
|
|
/* I2C2 clock enable */
|
__HAL_RCC_I2C2_CLK_ENABLE();
|
/* USER CODE BEGIN I2C2_MspInit 1 */
|
|
/* USER CODE END I2C2_MspInit 1 */
|
}
|
}
|
|
void HAL_I2C_MspDeInit(I2C_HandleTypeDef* i2cHandle)
|
{
|
|
if(i2cHandle->Instance==I2C2)
|
{
|
/* USER CODE BEGIN I2C2_MspDeInit 0 */
|
|
/* USER CODE END I2C2_MspDeInit 0 */
|
/* Peripheral clock disable */
|
__HAL_RCC_I2C2_CLK_DISABLE();
|
|
/**I2C2 GPIO Configuration
|
PB13 ------> I2C2_SCL
|
PB14 ------> I2C2_SDA
|
*/
|
HAL_GPIO_DeInit(GPIOB, GPIO_PIN_13);
|
|
HAL_GPIO_DeInit(GPIOB, GPIO_PIN_14);
|
|
/* USER CODE BEGIN I2C2_MspDeInit 1 */
|
|
/* USER CODE END I2C2_MspDeInit 1 */
|
}
|
}
|
|
/* USER CODE BEGIN 1 */
|
|
/* USER CODE END 1 */
|
|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
