321 lines
8.5 KiB
C
321 lines
8.5 KiB
C
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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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* <h2><center>© Copyright (c) 2021 STMicroelectronics.
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* All rights reserved.</center></h2>
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*
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* This software component is licensed by ST under Ultimate Liberty license
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* SLA0044, the "License"; You may not use this file except in compliance with
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* the License. You may obtain a copy of the License at:
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* www.st.com/SLA0044
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*
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******************************************************************************
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*/
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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 hi2c1;
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I2C_HandleTypeDef hi2c2;
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I2C_HandleTypeDef hi2c3;
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DMA_HandleTypeDef hdma_i2c2_tx;
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DMA_HandleTypeDef hdma_i2c3_rx;
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/* I2C1 init function */
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void MX_I2C1_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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hi2c1.Instance = I2C1;
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hi2c1.Init.ClockSpeed = 400000;
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hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_2;
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hi2c1.Init.OwnAddress1 = 0;
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hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
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hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
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hi2c1.Init.OwnAddress2 = 0;
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hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
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hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
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if (HAL_I2C_Init(&hi2c1) != 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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/* 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.ClockSpeed = 400000;
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hi2c2.Init.DutyCycle = I2C_DUTYCYCLE_2;
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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.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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/* USER CODE BEGIN I2C2_Init 2 */
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/* USER CODE END I2C2_Init 2 */
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}
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/* I2C3 init function */
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void MX_I2C3_Init(void)
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{
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/* USER CODE BEGIN I2C3_Init 0 */
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/* USER CODE END I2C3_Init 0 */
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/* USER CODE BEGIN I2C3_Init 1 */
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/* USER CODE END I2C3_Init 1 */
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hi2c3.Instance = I2C3;
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hi2c3.Init.ClockSpeed = 400000;
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hi2c3.Init.DutyCycle = I2C_DUTYCYCLE_2;
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hi2c3.Init.OwnAddress1 = 0;
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hi2c3.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
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hi2c3.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
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hi2c3.Init.OwnAddress2 = 0;
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hi2c3.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
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hi2c3.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
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if (HAL_I2C_Init(&hi2c3) != HAL_OK)
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{
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Error_Handler();
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}
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/* USER CODE BEGIN I2C3_Init 2 */
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/* USER CODE END I2C3_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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if(i2cHandle->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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__HAL_RCC_GPIOB_CLK_ENABLE();
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/**I2C1 GPIO Configuration
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PB8 ------> I2C1_SCL
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PB9 ------> I2C1_SDA
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*/
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GPIO_InitStruct.Pin = GPIO_PIN_8|GPIO_PIN_9;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
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GPIO_InitStruct.Pull = GPIO_PULLUP;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
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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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else 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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__HAL_RCC_GPIOF_CLK_ENABLE();
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/**I2C2 GPIO Configuration
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PF0 ------> I2C2_SDA
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PF1 ------> I2C2_SCL
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*/
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GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
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GPIO_InitStruct.Pull = GPIO_PULLUP;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStruct.Alternate = GPIO_AF4_I2C2;
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HAL_GPIO_Init(GPIOF, &GPIO_InitStruct);
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/* I2C2 clock enable */
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__HAL_RCC_I2C2_CLK_ENABLE();
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/* I2C2 DMA Init */
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/* I2C2_TX Init */
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hdma_i2c2_tx.Instance = DMA1_Stream7;
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hdma_i2c2_tx.Init.Channel = DMA_CHANNEL_7;
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hdma_i2c2_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
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hdma_i2c2_tx.Init.PeriphInc = DMA_PINC_DISABLE;
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hdma_i2c2_tx.Init.MemInc = DMA_MINC_ENABLE;
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hdma_i2c2_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
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hdma_i2c2_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
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hdma_i2c2_tx.Init.Mode = DMA_NORMAL;
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hdma_i2c2_tx.Init.Priority = DMA_PRIORITY_HIGH;
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hdma_i2c2_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
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if (HAL_DMA_Init(&hdma_i2c2_tx) != HAL_OK)
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{
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Error_Handler();
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}
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__HAL_LINKDMA(i2cHandle,hdmatx,hdma_i2c2_tx);
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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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else if(i2cHandle->Instance==I2C3)
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{
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/* USER CODE BEGIN I2C3_MspInit 0 */
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/* USER CODE END I2C3_MspInit 0 */
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__HAL_RCC_GPIOC_CLK_ENABLE();
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__HAL_RCC_GPIOA_CLK_ENABLE();
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/**I2C3 GPIO Configuration
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PC9 ------> I2C3_SDA
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PA8 ------> I2C3_SCL
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*/
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GPIO_InitStruct.Pin = GPIO_PIN_9;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
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GPIO_InitStruct.Pull = GPIO_PULLUP;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStruct.Alternate = GPIO_AF4_I2C3;
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HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
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GPIO_InitStruct.Pin = GPIO_PIN_8;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
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GPIO_InitStruct.Pull = GPIO_PULLUP;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStruct.Alternate = GPIO_AF4_I2C3;
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HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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/* I2C3 clock enable */
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__HAL_RCC_I2C3_CLK_ENABLE();
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/* I2C3 DMA Init */
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/* I2C3_RX Init */
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hdma_i2c3_rx.Instance = DMA1_Stream2;
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hdma_i2c3_rx.Init.Channel = DMA_CHANNEL_3;
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hdma_i2c3_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
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hdma_i2c3_rx.Init.PeriphInc = DMA_PINC_DISABLE;
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hdma_i2c3_rx.Init.MemInc = DMA_MINC_ENABLE;
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hdma_i2c3_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
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hdma_i2c3_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
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hdma_i2c3_rx.Init.Mode = DMA_NORMAL;
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hdma_i2c3_rx.Init.Priority = DMA_PRIORITY_LOW;
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hdma_i2c3_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
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if (HAL_DMA_Init(&hdma_i2c3_rx) != HAL_OK)
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{
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Error_Handler();
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}
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__HAL_LINKDMA(i2cHandle,hdmarx,hdma_i2c3_rx);
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/* USER CODE BEGIN I2C3_MspInit 1 */
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/* USER CODE END I2C3_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==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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PB8 ------> I2C1_SCL
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PB9 ------> I2C1_SDA
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*/
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HAL_GPIO_DeInit(GPIOB, GPIO_PIN_8);
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HAL_GPIO_DeInit(GPIOB, GPIO_PIN_9);
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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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else 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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PF0 ------> I2C2_SDA
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PF1 ------> I2C2_SCL
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*/
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HAL_GPIO_DeInit(GPIOF, GPIO_PIN_0);
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HAL_GPIO_DeInit(GPIOF, GPIO_PIN_1);
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/* I2C2 DMA DeInit */
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HAL_DMA_DeInit(i2cHandle->hdmatx);
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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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else if(i2cHandle->Instance==I2C3)
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{
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/* USER CODE BEGIN I2C3_MspDeInit 0 */
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/* USER CODE END I2C3_MspDeInit 0 */
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/* Peripheral clock disable */
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__HAL_RCC_I2C3_CLK_DISABLE();
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/**I2C3 GPIO Configuration
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PC9 ------> I2C3_SDA
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PA8 ------> I2C3_SCL
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*/
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HAL_GPIO_DeInit(GPIOC, GPIO_PIN_9);
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HAL_GPIO_DeInit(GPIOA, GPIO_PIN_8);
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/* I2C3 DMA DeInit */
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HAL_DMA_DeInit(i2cHandle->hdmarx);
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/* USER CODE BEGIN I2C3_MspDeInit 1 */
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/* USER CODE END I2C3_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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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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