120 lines
3.6 KiB
C
120 lines
3.6 KiB
C
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/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2025-07-21 Administrator the first version
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******************************************************************************
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* @file bsp_debug_usart.c
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* @author fire
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* @version V1.0
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* @date 2019-xx-xx
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* @brief 使用串口1，重定向c库printf函数到usart端口，中断接收模式
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******************************************************************************
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* @attention
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*
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* 实验平台:野火 STM32 H750 开发板
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* 论坛 :http://www.firebbs.cn
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* 淘宝 :http://firestm32.taobao.com
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*
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******************************************************************************
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*/
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#ifndef APPLICATIONS_USART_USART_C_
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#define APPLICATIONS_USART_USART_C_
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#include "usart.h"
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UART_HandleTypeDef UartHandle;
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extern uint8_t ucTemp;
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/**
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* @brief DEBUG_USART GPIO 配置,工作模式配置。115200 8-N-1
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* @param 无
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* @retval 无
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*/
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void DEBUG_USART_Config(void)
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{
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GPIO_InitTypeDef GPIO_InitStruct;
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RCC_PeriphCLKInitTypeDef RCC_PeriphClkInit;
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DEBUG_USART_RX_GPIO_CLK_ENABLE();
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DEBUG_USART_TX_GPIO_CLK_ENABLE();
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/* 配置串口1时钟源*/
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RCC_PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART1;
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RCC_PeriphClkInit.Usart16ClockSelection = RCC_USART16CLKSOURCE_D2PCLK2;
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HAL_RCCEx_PeriphCLKConfig(&RCC_PeriphClkInit);
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/* 使能串口1时钟 */
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DEBUG_USART_CLK_ENABLE();
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/* 配置Tx引脚为复用功能 */
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GPIO_InitStruct.Pin = DEBUG_USART_TX_PIN;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_PULLUP;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
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GPIO_InitStruct.Alternate = DEBUG_USART_TX_AF;
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HAL_GPIO_Init(DEBUG_USART_TX_GPIO_PORT, &GPIO_InitStruct);
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/* 配置Rx引脚为复用功能 */
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GPIO_InitStruct.Pin = DEBUG_USART_RX_PIN;
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GPIO_InitStruct.Alternate = DEBUG_USART_RX_AF;
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HAL_GPIO_Init(DEBUG_USART_RX_GPIO_PORT, &GPIO_InitStruct);
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/* 配置串DEBUG_USART 模式 */
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UartHandle.Instance = DEBUG_USART;
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UartHandle.Init.BaudRate = 115200;
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UartHandle.Init.WordLength = UART_WORDLENGTH_8B;
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UartHandle.Init.StopBits = UART_STOPBITS_1;
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UartHandle.Init.Parity = UART_PARITY_NONE;
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UartHandle.Init.Mode = UART_MODE_TX_RX;
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UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
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UartHandle.Init.OverSampling = UART_OVERSAMPLING_16;
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UartHandle.Init.OneBitSampling = UART_ONEBIT_SAMPLING_DISABLED;
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UartHandle.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
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HAL_UART_Init(&UartHandle);
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/*串口1中断初始化 */
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HAL_NVIC_SetPriority(DEBUG_USART_IRQ, 0, 0);
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HAL_NVIC_EnableIRQ(DEBUG_USART_IRQ);
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/*配置串口接收中断 */
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__HAL_UART_ENABLE_IT(&UartHandle,UART_IT_RXNE);
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}
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/***************** 发送字符串 **********************/
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void Usart_SendString( USART_TypeDef * pUSARTx, uint8_t *str)
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{
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unsigned int k=0;
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do
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{
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HAL_UART_Transmit( &UartHandle,(uint8_t *)(str + k) ,1,1000);
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k++;
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} while(*(str + k)!='\0');
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}
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///重定向c库函数printf到串口DEBUG_USART，重定向后可使用printf函数
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int fputc(int ch, FILE *f)
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{
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/* 发送一个字节数据到串口DEBUG_USART */
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HAL_UART_Transmit(&UartHandle, (uint8_t *)&ch, 1, 1000);
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return (ch);
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}
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///重定向c库函数scanf到串口DEBUG_USART，重写向后可使用scanf、getchar等函数
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int fgetc(FILE *f)
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{
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int ch;
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HAL_UART_Receive(&UartHandle, (uint8_t *)&ch, 1, 1000);
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return (ch);
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}
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/*********************************************END OF FILE**********************/
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#endif /* APPLICATIONS_USART_USART_C_ */
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