forked from logzhan/RobotHardware-UESTC
132 lines
3.6 KiB
C
132 lines
3.6 KiB
C
/**
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******************************************************************************
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* File Name : USART.c
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* Description : This file provides code for the configuration
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* of the USART instances.
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2020 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 BSD 3-Clause license,
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* the "License"; You may not use this file except in compliance with the
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* License. You may obtain a copy of the License at:
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* opensource.org/licenses/BSD-3-Clause
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "usart.h"
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/* USER CODE BEGIN 0 */
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#include <stdio.h>
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/* USER CODE END 0 */
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UART_HandleTypeDef huart3;
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/* USART3 init function */
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void MX_USART3_UART_Init(void)
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{
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huart3.Instance = USART3;
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huart3.Init.BaudRate = 115200;
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huart3.Init.WordLength = UART_WORDLENGTH_8B;
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huart3.Init.StopBits = UART_STOPBITS_1;
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huart3.Init.Parity = UART_PARITY_NONE;
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huart3.Init.Mode = UART_MODE_TX_RX;
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huart3.Init.HwFlowCtl = UART_HWCONTROL_NONE;
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huart3.Init.OverSampling = UART_OVERSAMPLING_16;
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if (HAL_UART_Init(&huart3) != HAL_OK)
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{
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Error_Handler();
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}
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}
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/**
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* @brief UART MSP Initialization
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* This function configures the hardware resources used in this example
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* @param huart: UART handle pointer
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* @retval None
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*/
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void HAL_UART_MspInit(UART_HandleTypeDef* huart)
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{
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GPIO_InitTypeDef GPIO_InitStruct = {0};
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if(huart->Instance==USART3)
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{
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/* Peripheral clock enable */
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__HAL_RCC_USART3_CLK_ENABLE();
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__HAL_RCC_GPIOB_CLK_ENABLE();
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/**USART3 GPIO Configuration
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PB10 ------> USART3_TX
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PB11 ------> USART3_RX
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*/
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GPIO_InitStruct.Pin = GPIO_PIN_10;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
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HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
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GPIO_InitStruct.Pin = GPIO_PIN_11;
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GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
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}
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}
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/**
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* @brief UART MSP De-Initialization
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* This function freeze the hardware resources used in this example
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* @param huart: UART handle pointer
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* @retval None
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*/
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void HAL_UART_MspDeInit(UART_HandleTypeDef* huart)
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{
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if(huart->Instance==USART3)
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{
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/* USER CODE BEGIN USART3_MspDeInit 0 */
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/* USER CODE END USART3_MspDeInit 0 */
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/* Peripheral clock disable */
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__HAL_RCC_USART3_CLK_DISABLE();
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/**USART3 GPIO Configuration
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PB10 ------> USART3_TX
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PB11 ------> USART3_RX
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*/
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HAL_GPIO_DeInit(GPIOB, GPIO_PIN_10|GPIO_PIN_11);
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/* USER CODE BEGIN USART3_MspDeInit 1 */
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/* USER CODE END USART3_MspDeInit 1 */
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}
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}
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/* USER CODE BEGIN 1 */
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#ifdef __GNUC__
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/* With GCC/RAISONANCE, small printf (option LD Linker->Libraries->Small printf
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set to 'Yes') calls __io_putchar() */
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#define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
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#else
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#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
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#endif /* __GNUC__ */
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/**
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* @brief Retargets the C library printf function to the USART.
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* @param None
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* @retval None
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*/
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PUTCHAR_PROTOTYPE
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{
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/* Place your implementation of fputc here */
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/* e.g. write a character to the EVAL_COM1 and Loop until the end of transmission */
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HAL_UART_Transmit(&huart3, (uint8_t *)&ch, 1, 0xFFFF);
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return ch;
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}
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/* USER CODE END 1 */
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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