/** ****************************************************************************** * @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 */ I2C_HandleTypeDef hi2c1; /* I2C1 init function */ void MX_I2C1_Init(void) { hi2c1.Instance = I2C1; hi2c1.Init.Timing = 0x10707DBC; hi2c1.Init.OwnAddress1 = 0; hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE; hi2c1.Init.OwnAddress2 = 0; hi2c1.Init.OwnAddress2Masks = I2C_OA2_NOMASK; hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE; hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE; if (HAL_I2C_Init(&hi2c1) != HAL_OK) { Error_Handler(); } /** Configure Analogue filter */ if (HAL_I2CEx_ConfigAnalogFilter(&hi2c1, I2C_ANALOGFILTER_ENABLE) != HAL_OK) { Error_Handler(); } /** Configure Digital filter */ if (HAL_I2CEx_ConfigDigitalFilter(&hi2c1, 0) != HAL_OK) { Error_Handler(); } } void HAL_I2C_MspInit(I2C_HandleTypeDef* i2cHandle) { GPIO_InitTypeDef GPIO_InitStruct = {0}; if(i2cHandle->Instance==I2C1) { /* USER CODE BEGIN I2C1_MspInit 0 */ /* USER CODE END I2C1_MspInit 0 */ __HAL_RCC_GPIOA_CLK_ENABLE(); /**I2C1 GPIO Configuration PA9 ------> I2C1_SCL PA10 ------> I2C1_SDA */ GPIO_InitStruct.Pin = I2C_SCL_Pin|I2C_SDA_Pin; GPIO_InitStruct.Mode = GPIO_MODE_AF_OD; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; GPIO_InitStruct.Alternate = GPIO_AF4_I2C1; HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); /* I2C1 clock enable */ __HAL_RCC_I2C1_CLK_ENABLE(); /* USER CODE BEGIN I2C1_MspInit 1 */ /* USER CODE END I2C1_MspInit 1 */ } } void HAL_I2C_MspDeInit(I2C_HandleTypeDef* i2cHandle) { if(i2cHandle->Instance==I2C1) { /* USER CODE BEGIN I2C1_MspDeInit 0 */ /* USER CODE END I2C1_MspDeInit 0 */ /* Peripheral clock disable */ __HAL_RCC_I2C1_CLK_DISABLE(); /**I2C1 GPIO Configuration PA9 ------> I2C1_SCL PA10 ------> I2C1_SDA */ HAL_GPIO_DeInit(I2C_SCL_GPIO_Port, I2C_SCL_Pin); HAL_GPIO_DeInit(I2C_SDA_GPIO_Port, I2C_SDA_Pin); /* USER CODE BEGIN I2C1_MspDeInit 1 */ /* USER CODE END I2C1_MspDeInit 1 */ } } /* USER CODE BEGIN 1 */ /* USER CODE END 1 */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/