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146 lines
3.8 KiB
146 lines
3.8 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) 2022 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 hi2c3; |
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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.Timing = 0x00C0EAFF; |
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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.OwnAddress2Masks = I2C_OA2_NOMASK; |
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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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/** Configure Analogue filter |
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*/ |
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if (HAL_I2CEx_ConfigAnalogFilter(&hi2c3, 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(&hi2c3, 0) != 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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RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0}; |
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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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/** Initializes the peripherals clock |
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*/ |
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PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_I2C3; |
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PeriphClkInitStruct.I2c3ClockSelection = RCC_I2C3CLKSOURCE_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_GPIOH_CLK_ENABLE(); |
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/**I2C3 GPIO Configuration |
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PH7 ------> I2C3_SCL |
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PH8 ------> I2C3_SDA |
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*/ |
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GPIO_InitStruct.Pin = LCD_SCL_Pin_Pin|LCD_SDA_Pin_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_VERY_HIGH; |
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GPIO_InitStruct.Alternate = GPIO_AF4_I2C3; |
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HAL_GPIO_Init(GPIOH, &GPIO_InitStruct); |
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/* I2C3 clock enable */ |
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__HAL_RCC_I2C3_CLK_ENABLE(); |
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/* I2C3 interrupt Init */ |
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HAL_NVIC_SetPriority(I2C3_EV_IRQn, 5, 0); |
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HAL_NVIC_EnableIRQ(I2C3_EV_IRQn); |
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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==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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PH7 ------> I2C3_SCL |
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PH8 ------> I2C3_SDA |
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*/ |
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HAL_GPIO_DeInit(LCD_SCL_Pin_GPIO_Port, LCD_SCL_Pin_Pin); |
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HAL_GPIO_DeInit(LCD_SDA_Pin_GPIO_Port, LCD_SDA_Pin_Pin); |
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/* I2C3 interrupt Deinit */ |
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HAL_NVIC_DisableIRQ(I2C3_EV_IRQn); |
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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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