/** ****************************************************************************** * @file i2c.c * @brief This file provides code for the configuration * of the I2C instances. ****************************************************************************** * @attention * *

© Copyright (c) 2021 STMicroelectronics. * All rights reserved.

* * 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****/