151 lines
4.1 KiB
C
151 lines
4.1 KiB
C
/* 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) 2025 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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SMBUS_HandleTypeDef hsmbus1;
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/* I2C1 init function */
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void MX_I2C1_SMBUS_Init(void)
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{
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/* USER CODE BEGIN I2C1_Init 0 */
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/* USER CODE END I2C1_Init 0 */
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/* USER CODE BEGIN I2C1_Init 1 */
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/* USER CODE END I2C1_Init 1 */
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hsmbus1.Instance = I2C1;
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hsmbus1.Init.Timing = 0x10805D88;
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hsmbus1.Init.AnalogFilter = SMBUS_ANALOGFILTER_ENABLE;
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hsmbus1.Init.OwnAddress1 = 2;
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hsmbus1.Init.AddressingMode = SMBUS_ADDRESSINGMODE_7BIT;
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hsmbus1.Init.DualAddressMode = SMBUS_DUALADDRESS_DISABLE;
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hsmbus1.Init.OwnAddress2 = 0;
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hsmbus1.Init.OwnAddress2Masks = SMBUS_OA2_NOMASK;
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hsmbus1.Init.GeneralCallMode = SMBUS_GENERALCALL_DISABLE;
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hsmbus1.Init.NoStretchMode = SMBUS_NOSTRETCH_DISABLE;
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hsmbus1.Init.PacketErrorCheckMode = SMBUS_PEC_DISABLE;
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hsmbus1.Init.PeripheralMode = SMBUS_PERIPHERAL_MODE_SMBUS_SLAVE;
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hsmbus1.Init.SMBusTimeout = 0x00008249;
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if (HAL_SMBUS_Init(&hsmbus1) != HAL_OK)
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{
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Error_Handler();
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}
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/** configuration Alert Mode
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*/
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if (HAL_SMBUS_EnableAlert_IT(&hsmbus1) != HAL_OK)
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{
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Error_Handler();
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}
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/* USER CODE BEGIN I2C1_Init 2 */
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/* USER CODE END I2C1_Init 2 */
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}
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void HAL_SMBUS_MspInit(SMBUS_HandleTypeDef* smbusHandle)
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{
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GPIO_InitTypeDef GPIO_InitStruct = {0};
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RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
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if(smbusHandle->Instance==I2C1)
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{
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/* USER CODE BEGIN I2C1_MspInit 0 */
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/* USER CODE END I2C1_MspInit 0 */
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/** Initializes the peripherals clocks
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*/
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PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_I2C1;
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PeriphClkInit.I2c1ClockSelection = RCC_I2C1CLKSOURCE_PCLK1;
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if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != 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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/**I2C1 GPIO Configuration
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PA15 ------> I2C1_SCL
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PB5 ------> I2C1_SMBA
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PB7 ------> I2C1_SDA
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*/
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GPIO_InitStruct.Pin = GPIO_PIN_15;
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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_I2C1;
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HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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GPIO_InitStruct.Pin = GPIO_PIN_5|GPIO_PIN_7;
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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_I2C1;
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HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
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/* I2C1 clock enable */
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__HAL_RCC_I2C1_CLK_ENABLE();
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/* USER CODE BEGIN I2C1_MspInit 1 */
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/* USER CODE END I2C1_MspInit 1 */
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}
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}
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void HAL_SMBUS_MspDeInit(SMBUS_HandleTypeDef* smbusHandle)
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{
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if(smbusHandle->Instance==I2C1)
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{
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/* USER CODE BEGIN I2C1_MspDeInit 0 */
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/* USER CODE END I2C1_MspDeInit 0 */
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/* Peripheral clock disable */
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__HAL_RCC_I2C1_CLK_DISABLE();
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/**I2C1 GPIO Configuration
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PA15 ------> I2C1_SCL
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PB5 ------> I2C1_SMBA
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PB7 ------> I2C1_SDA
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*/
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HAL_GPIO_DeInit(GPIOA, GPIO_PIN_15);
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HAL_GPIO_DeInit(GPIOB, GPIO_PIN_5);
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HAL_GPIO_DeInit(GPIOB, GPIO_PIN_7);
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/* USER CODE BEGIN I2C1_MspDeInit 1 */
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/* USER CODE END I2C1_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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