/* USER CODE BEGIN Header */ /** ****************************************************************************** * @file i2c.c * @brief This file provides code for the configuration * of the I2C instances. ****************************************************************************** * @attention * * Copyright (c) 2024 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 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 = 0x307075B1; 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 PeriphClkInitStruct = {0}; if(i2cHandle->Instance==I2C2) { /* USER CODE BEGIN I2C2_MspInit 0 */ /* USER CODE END I2C2_MspInit 0 */ /** Initializes the peripherals clock */ PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_I2C2; PeriphClkInitStruct.I2c123ClockSelection = RCC_I2C1235CLKSOURCE_D2PCLK1; if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK) { Error_Handler(); } __HAL_RCC_GPIOB_CLK_ENABLE(); /**I2C2 GPIO Configuration PB10 ------> I2C2_SCL PB11 ------> I2C2_SDA */ GPIO_InitStruct.Pin = GPIO_PIN_10|GPIO_PIN_11; GPIO_InitStruct.Mode = GPIO_MODE_AF_OD; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; 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 PB10 ------> I2C2_SCL PB11 ------> I2C2_SDA */ HAL_GPIO_DeInit(GPIOB, GPIO_PIN_10); HAL_GPIO_DeInit(GPIOB, GPIO_PIN_11); /* USER CODE BEGIN I2C2_MspDeInit 1 */ /* USER CODE END I2C2_MspDeInit 1 */ } } /* USER CODE BEGIN 1 */ /* USER CODE END 1 */