91 lines
2.7 KiB
C
91 lines
2.7 KiB
C
/* USER CODE BEGIN Header */
|
|
/**
|
|
******************************************************************************
|
|
* @file i2c.c
|
|
* @brief This file provides code for the configuration
|
|
* of the I2C instances.
|
|
******************************************************************************
|
|
* @attention
|
|
*
|
|
* Copyright (c) 2023 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 */
|
|
|
|
/* I2C2 init function */
|
|
void MX_I2C2_Init(void)
|
|
{
|
|
|
|
/* USER CODE BEGIN I2C2_Init 0 */
|
|
|
|
/* USER CODE END I2C2_Init 0 */
|
|
|
|
LL_I2C_InitTypeDef I2C_InitStruct = {0};
|
|
|
|
LL_GPIO_InitTypeDef GPIO_InitStruct = {0};
|
|
|
|
LL_IOP_GRP1_EnableClock(LL_IOP_GRP1_PERIPH_GPIOA);
|
|
/**I2C2 GPIO Configuration
|
|
PA11 [PA9] ------> I2C2_SCL
|
|
PA12 [PA10] ------> I2C2_SDA
|
|
*/
|
|
GPIO_InitStruct.Pin = LL_GPIO_PIN_11;
|
|
GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
|
|
GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_LOW;
|
|
GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_OPENDRAIN;
|
|
GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
|
|
GPIO_InitStruct.Alternate = LL_GPIO_AF_6;
|
|
LL_GPIO_Init(GPIOA, &GPIO_InitStruct);
|
|
|
|
GPIO_InitStruct.Pin = LL_GPIO_PIN_12;
|
|
GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
|
|
GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_LOW;
|
|
GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_OPENDRAIN;
|
|
GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
|
|
GPIO_InitStruct.Alternate = LL_GPIO_AF_6;
|
|
LL_GPIO_Init(GPIOA, &GPIO_InitStruct);
|
|
|
|
/* Peripheral clock enable */
|
|
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_I2C2);
|
|
|
|
/* USER CODE BEGIN I2C2_Init 1 */
|
|
|
|
/* USER CODE END I2C2_Init 1 */
|
|
|
|
/** I2C Initialization
|
|
*/
|
|
I2C_InitStruct.PeripheralMode = LL_I2C_MODE_I2C;
|
|
I2C_InitStruct.Timing = 0x10707DBC;
|
|
I2C_InitStruct.AnalogFilter = LL_I2C_ANALOGFILTER_ENABLE;
|
|
I2C_InitStruct.DigitalFilter = 0;
|
|
I2C_InitStruct.OwnAddress1 = 0;
|
|
I2C_InitStruct.TypeAcknowledge = LL_I2C_ACK;
|
|
I2C_InitStruct.OwnAddrSize = LL_I2C_OWNADDRESS1_7BIT;
|
|
LL_I2C_Init(I2C2, &I2C_InitStruct);
|
|
LL_I2C_EnableAutoEndMode(I2C2);
|
|
LL_I2C_SetOwnAddress2(I2C2, 0, LL_I2C_OWNADDRESS2_NOMASK);
|
|
LL_I2C_DisableOwnAddress2(I2C2);
|
|
LL_I2C_DisableGeneralCall(I2C2);
|
|
LL_I2C_EnableClockStretching(I2C2);
|
|
/* USER CODE BEGIN I2C2_Init 2 */
|
|
|
|
/* USER CODE END I2C2_Init 2 */
|
|
|
|
}
|
|
|
|
/* USER CODE BEGIN 1 */
|
|
|
|
/* USER CODE END 1 */
|