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148 lines
3.9 KiB
148 lines
3.9 KiB
/* USER CODE BEGIN Header */ |
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/** |
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****************************************************************************** |
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* @file i2c.c |
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* @brief This file provides code for the configuration |
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* of the I2C instances. |
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****************************************************************************** |
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* @attention |
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* |
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* Copyright (c) 2024 STMicroelectronics. |
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* All rights reserved. |
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* |
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* This software is licensed under terms that can be found in the LICENSE file |
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* in the root directory of this software component. |
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* If no LICENSE file comes with this software, it is provided AS-IS. |
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* |
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****************************************************************************** |
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*/ |
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/* USER CODE END Header */ |
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/* Includes ------------------------------------------------------------------*/ |
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#include "i2c.h" |
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/* USER CODE BEGIN 0 */ |
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/* USER CODE END 0 */ |
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I2C_HandleTypeDef hi2c2; |
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/* I2C2 init function */ |
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void MX_I2C2_Init(void) |
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{ |
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/* USER CODE BEGIN I2C2_Init 0 */ |
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/* USER CODE END I2C2_Init 0 */ |
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/* USER CODE BEGIN I2C2_Init 1 */ |
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/* USER CODE END I2C2_Init 1 */ |
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hi2c2.Instance = I2C2; |
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hi2c2.Init.Timing = 0x10805D88; |
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hi2c2.Init.OwnAddress1 = 0; |
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hi2c2.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; |
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hi2c2.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE; |
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hi2c2.Init.OwnAddress2 = 0; |
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hi2c2.Init.OwnAddress2Masks = I2C_OA2_NOMASK; |
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hi2c2.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE; |
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hi2c2.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE; |
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if (HAL_I2C_Init(&hi2c2) != HAL_OK) |
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{ |
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Error_Handler(); |
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} |
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/** Configure Analogue filter |
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*/ |
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if (HAL_I2CEx_ConfigAnalogFilter(&hi2c2, I2C_ANALOGFILTER_ENABLE) != HAL_OK) |
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{ |
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Error_Handler(); |
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} |
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/** Configure Digital filter |
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*/ |
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if (HAL_I2CEx_ConfigDigitalFilter(&hi2c2, 0) != HAL_OK) |
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{ |
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Error_Handler(); |
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} |
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/* USER CODE BEGIN I2C2_Init 2 */ |
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/* USER CODE END I2C2_Init 2 */ |
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} |
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void HAL_I2C_MspInit(I2C_HandleTypeDef* i2cHandle) |
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{ |
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GPIO_InitTypeDef GPIO_InitStruct = {0}; |
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RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0}; |
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if(i2cHandle->Instance==I2C2) |
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{ |
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/* USER CODE BEGIN I2C2_MspInit 0 */ |
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/* USER CODE END I2C2_MspInit 0 */ |
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/** Initializes the peripherals clocks |
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*/ |
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PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_I2C2; |
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PeriphClkInitStruct.I2c2ClockSelection = RCC_I2C2CLKSOURCE_PCLK1; |
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if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK) |
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{ |
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Error_Handler(); |
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} |
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__HAL_RCC_GPIOA_CLK_ENABLE(); |
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__HAL_RCC_GPIOB_CLK_ENABLE(); |
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/**I2C2 GPIO Configuration |
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PA15 ------> I2C2_SDA |
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PB15 ------> I2C2_SCL |
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*/ |
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GPIO_InitStruct.Pin = SDA_Pin; |
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GPIO_InitStruct.Mode = GPIO_MODE_AF_OD; |
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GPIO_InitStruct.Pull = GPIO_NOPULL; |
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; |
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GPIO_InitStruct.Alternate = GPIO_AF4_I2C2; |
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HAL_GPIO_Init(SDA_GPIO_Port, &GPIO_InitStruct); |
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GPIO_InitStruct.Pin = SCL_Pin; |
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GPIO_InitStruct.Mode = GPIO_MODE_AF_OD; |
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GPIO_InitStruct.Pull = GPIO_NOPULL; |
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; |
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GPIO_InitStruct.Alternate = GPIO_AF4_I2C2; |
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HAL_GPIO_Init(SCL_GPIO_Port, &GPIO_InitStruct); |
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/* I2C2 clock enable */ |
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__HAL_RCC_I2C2_CLK_ENABLE(); |
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/* USER CODE BEGIN I2C2_MspInit 1 */ |
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/* USER CODE END I2C2_MspInit 1 */ |
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} |
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} |
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void HAL_I2C_MspDeInit(I2C_HandleTypeDef* i2cHandle) |
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{ |
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if(i2cHandle->Instance==I2C2) |
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{ |
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/* USER CODE BEGIN I2C2_MspDeInit 0 */ |
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/* USER CODE END I2C2_MspDeInit 0 */ |
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/* Peripheral clock disable */ |
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__HAL_RCC_I2C2_CLK_DISABLE(); |
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/**I2C2 GPIO Configuration |
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PA15 ------> I2C2_SDA |
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PB15 ------> I2C2_SCL |
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*/ |
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HAL_GPIO_DeInit(SDA_GPIO_Port, SDA_Pin); |
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HAL_GPIO_DeInit(SCL_GPIO_Port, SCL_Pin); |
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/* USER CODE BEGIN I2C2_MspDeInit 1 */ |
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/* USER CODE END I2C2_MspDeInit 1 */ |
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} |
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} |
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/* USER CODE BEGIN 1 */ |
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/* USER CODE END 1 */
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