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140 lines
3.7 KiB
140 lines
3.7 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 hi2c1; |
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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.Timing = 0x00C0EAFF; |
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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.OwnAddress2Masks = I2C_OA2_NOMASK; |
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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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/** Configure Analogue filter |
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*/ |
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if (HAL_I2CEx_ConfigAnalogFilter(&hi2c1, 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(&hi2c1, 0) != 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_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==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 clock |
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*/ |
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PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_I2C1; |
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PeriphClkInitStruct.I2c1ClockSelection = RCC_I2C1CLKSOURCE_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_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 = ARDUINO_SCL_D15_Pin|ARDUINO_SDA_D14_Pin; |
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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_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_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(ARDUINO_SCL_D15_GPIO_Port, ARDUINO_SCL_D15_Pin); |
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HAL_GPIO_DeInit(ARDUINO_SDA_D14_GPIO_Port, ARDUINO_SDA_D14_Pin); |
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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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