flipperzero-firmware/firmware/targets/f6/cube/Src/i2c.c

/**
  ******************************************************************************
  * @file    i2c.c
  * @brief   This file provides code for the configuration
  *          of the I2C instances.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2021 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under Ultimate Liberty license
  * SLA0044, the "License"; You may not use this file except in compliance with
  * the License. You may obtain a copy of the License at:
  *                             www.st.com/SLA0044
  *
  ******************************************************************************
  */

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

/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

/* I2C1 init function */
void MX_I2C1_Init(void) {
    /* USER CODE BEGIN I2C1_Init 0 */

    /* USER CODE END I2C1_Init 0 */

    LL_I2C_InitTypeDef I2C_InitStruct = {0};

    LL_GPIO_InitTypeDef GPIO_InitStruct = {0};

    LL_AHB2_GRP1_EnableClock(LL_AHB2_GRP1_PERIPH_GPIOA);
    /**I2C1 GPIO Configuration
  PA9   ------> I2C1_SCL
  PA10   ------> I2C1_SDA
  */
    GPIO_InitStruct.Pin = LL_GPIO_PIN_9 | LL_GPIO_PIN_10;
    GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
    GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_OPENDRAIN;
    GPIO_InitStruct.Pull = LL_GPIO_PULL_UP;
    GPIO_InitStruct.Alternate = LL_GPIO_AF_4;
    LL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    /* Peripheral clock enable */
    LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_I2C1);

    /* USER CODE BEGIN I2C1_Init 1 */

    /* USER CODE END I2C1_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(I2C1, &I2C_InitStruct);
    LL_I2C_EnableAutoEndMode(I2C1);
    LL_I2C_SetOwnAddress2(I2C1, 0, LL_I2C_OWNADDRESS2_NOMASK);
    LL_I2C_DisableOwnAddress2(I2C1);
    LL_I2C_DisableGeneralCall(I2C1);
    LL_I2C_EnableClockStretching(I2C1);
    /* USER CODE BEGIN I2C1_Init 2 */

    /* USER CODE END I2C1_Init 2 */
}

/* USER CODE BEGIN 1 */

/* USER CODE END 1 */

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