158 lines
4.8 KiB
C
158 lines
4.8 KiB
C
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/**
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******************************************************************************
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* File Name : I2C.c
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* Description : This file provides code for the configuration
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* of the I2C instances.
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******************************************************************************
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** This notice applies to any and all portions of this file
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* that are not between comment pairs USER CODE BEGIN and
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* USER CODE END. Other portions of this file, whether
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* inserted by the user or by software development tools
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* are owned by their respective copyright owners.
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*
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* COPYRIGHT(c) 2018 STMicroelectronics
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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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 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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hi2c3.Instance = I2C3;
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hi2c3.Init.Timing = 0x00501E63;
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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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for(;;){}
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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_DISABLE) != HAL_OK)
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{
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for(;;){}
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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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for(;;){}
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}
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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;
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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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/**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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/* 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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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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/* 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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/**
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* @}
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*/
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/**
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* @}
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*/
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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