STM32CubeMX
usart.h
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file usart.h
* @brief This file contains all the function prototypes for
* the usart.c file
******************************************************************************
* @attention
*
* Copyright (c) 2024 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __USART_H__
#define __USART_H__
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* USER CODE BEGIN Includes */
#include "stdio.h"
#include <string.h>
#include <stdarg.h>
/* USER CODE END Includes */
extern UART_HandleTypeDef huart7;
extern UART_HandleTypeDef huart1;
/* USER CODE BEGIN Private defines */
/* USER CODE END Private defines */
void MX_UART7_Init(void);
void MX_USART1_UART_Init(void);
/* USER CODE BEGIN Prototypes */
/* USER CODE END Prototypes */
#ifdef __cplusplus
}
#endif
#endif /* __USART_H__ */
usart.c
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file usart.c
* @brief This file provides code for the configuration
* of the USART instances.
******************************************************************************
* @attention
*
* Copyright (c) 2024 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "usart.h"
/* USER CODE BEGIN 0 */
// #include "stdio.h"
// #include <string.h>
// #include <stdarg.h>
void cmd(char *str);
//*********************串口1 */
#define RXBUFFERSIZE_1 1 //每接收1个字节中断1次
uint8_t RxBuff_1[RXBUFFERSIZE_1];//中断后数据储存位置
//启动中断
void receives_uaru_1(void);
// UART2接收缓冲区
#define MAX_LEN_1 10
char data1[MAX_LEN_1];
//已经接收的长度
uint8_t data_len_1 = 0;
//*********************串口7 */
// UART接收中断变量
#define RXBUFFERSIZE_7 1 //每接收1个字节中断1次
uint8_t RxBuff_7[RXBUFFERSIZE_7];//中断后数据储存位置
//启动中断
void receives_uaru_7(void);
// UART接收缓冲区
#define MAX_LEN_7 2048 //2k缓冲区
char data7[MAX_LEN_7];
//已经接收的长度
uint8_t data_len_7 = 0;
//*********************串口7 */
/* USER CODE END 0 */
UART_HandleTypeDef huart7;
UART_HandleTypeDef huart1;
/* UART7 init function */
void MX_UART7_Init(void)
{
/* USER CODE BEGIN UART7_Init 0 */
/* USER CODE END UART7_Init 0 */
/* USER CODE BEGIN UART7_Init 1 */
/* USER CODE END UART7_Init 1 */
huart7.Instance = UART7;
huart7.Init.BaudRate = 750000;
huart7.Init.WordLength = UART_WORDLENGTH_8B;
huart7.Init.StopBits = UART_STOPBITS_1;
huart7.Init.Parity = UART_PARITY_NONE;
huart7.Init.Mode = UART_MODE_TX_RX;
huart7.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart7.Init.OverSampling = UART_OVERSAMPLING_16;
huart7.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
huart7.Init.ClockPrescaler = UART_PRESCALER_DIV1;
huart7.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
if (HAL_UART_Init(&huart7) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_SetTxFifoThreshold(&huart7, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_SetRxFifoThreshold(&huart7, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_DisableFifoMode(&huart7) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN UART7_Init 2 */
//启用接收中断
receives_uaru_7();
/* USER CODE END UART7_Init 2 */
}
/* USART1 init function */
void MX_USART1_UART_Init(void)
{
/* USER CODE BEGIN USART1_Init 0 */
/* USER CODE END USART1_Init 0 */
/* USER CODE BEGIN USART1_Init 1 */
/* USER CODE END USART1_Init 1 */
huart1.Instance = USART1;
huart1.Init.BaudRate = 750000;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits = UART_STOPBITS_1;
huart1.Init.Parity = UART_PARITY_NONE;
huart1.Init.Mode = UART_MODE_TX_RX;
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
huart1.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
huart1.Init.ClockPrescaler = UART_PRESCALER_DIV1;
huart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
if (HAL_UART_Init(&huart1) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_SetTxFifoThreshold(&huart1, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_SetRxFifoThreshold(&huart1, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK)
{
Error_Handler();
}
if (HAL_UARTEx_DisableFifoMode(&huart1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN USART1_Init 2 */
//启用接收中断
receives_uaru_1();
printf("启用中断\n" );
/* USER CODE END USART1_Init 2 */
}
void HAL_UART_MspInit(UART_HandleTypeDef* uartHandle)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
if(uartHandle->Instance==UART7)
{
/* USER CODE BEGIN UART7_MspInit 0 */
/* USER CODE END UART7_MspInit 0 */
/** Initializes the peripherals clock
*/
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_UART7;
PeriphClkInitStruct.Usart234578ClockSelection = RCC_USART234578CLKSOURCE_D2PCLK1;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
{
Error_Handler();
}
/* UART7 clock enable */
__HAL_RCC_UART7_CLK_ENABLE();
__HAL_RCC_GPIOF_CLK_ENABLE();
/**UART7 GPIO Configuration
PF6 ------> UART7_RX
PF7 ------> UART7_TX
*/
GPIO_InitStruct.Pin = GPIO_PIN_6|GPIO_PIN_7;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF7_UART7;
HAL_GPIO_Init(GPIOF, &GPIO_InitStruct);
/* UART7 interrupt Init */
HAL_NVIC_SetPriority(UART7_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(UART7_IRQn);
/* USER CODE BEGIN UART7_MspInit 1 */
/* USER CODE END UART7_MspInit 1 */
}
else if(uartHandle->Instance==USART1)
{
/* USER CODE BEGIN USART1_MspInit 0 */
/* USER CODE END USART1_MspInit 0 */
/** Initializes the peripherals clock
*/
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_USART1;
PeriphClkInitStruct.Usart16ClockSelection = RCC_USART16CLKSOURCE_D2PCLK2;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
{
Error_Handler();
}
/* USART1 clock enable */
__HAL_RCC_USART1_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
/**USART1 GPIO Configuration
PB14 ------> USART1_TX
PB15 ------> USART1_RX
*/
GPIO_InitStruct.Pin = GPIO_PIN_14|GPIO_PIN_15;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF4_USART1;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* USART1 interrupt Init */
HAL_NVIC_SetPriority(USART1_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(USART1_IRQn);
/* USER CODE BEGIN USART1_MspInit 1 */
/* USER CODE END USART1_MspInit 1 */
}
}
void HAL_UART_MspDeInit(UART_HandleTypeDef* uartHandle)
{
if(uartHandle->Instance==UART7)
{
/* USER CODE BEGIN UART7_MspDeInit 0 */
/* USER CODE END UART7_MspDeInit 0 */
/* Peripheral clock disable */
__HAL_RCC_UART7_CLK_DISABLE();
/**UART7 GPIO Configuration
PF6 ------> UART7_RX
PF7 ------> UART7_TX
*/
HAL_GPIO_DeInit(GPIOF, GPIO_PIN_6|GPIO_PIN_7);
/* UART7 interrupt Deinit */
HAL_NVIC_DisableIRQ(UART7_IRQn);
/* USER CODE BEGIN UART7_MspDeInit 1 */
/* USER CODE END UART7_MspDeInit 1 */
}
else if(uartHandle->Instance==USART1)
{
/* USER CODE BEGIN USART1_MspDeInit 0 */
/* USER CODE END USART1_MspDeInit 0 */
/* Peripheral clock disable */
__HAL_RCC_USART1_CLK_DISABLE();
/**USART1 GPIO Configuration
PB14 ------> USART1_TX
PB15 ------> USART1_RX
*/
HAL_GPIO_DeInit(GPIOB, GPIO_PIN_14|GPIO_PIN_15);
/* USART1 interrupt Deinit */
HAL_NVIC_DisableIRQ(USART1_IRQn);
/* USER CODE BEGIN USART1_MspDeInit 1 */
/* USER CODE END USART1_MspDeInit 1 */
}
}
/* USER CODE BEGIN 1 */
int fputc(int ch, FILE *f)
{
HAL_UART_Transmit(&huart1, (uint8_t *)&ch, 1, 0xFFFF);
return ch;
}
// UART接收完成回调函数
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{
// UART接收完成回调函数
//每接收一个字节中断一次
if(huart->Instance==USART1)
{
data1[data_len_1] = (char)RxBuff_1[0];
data_len_1++;
//接收完成
if(RxBuff_1[0] == '\n' || data_len_1 == MAX_LEN_1 -1){//接收结束为换行符
data1[data_len_1] = '\0';//字符串结束符
printf("%s", data1 );
cmd(data1);//将命令转到处理函数
data_len_1 = 0;//清空缓存
}
//启用接收中断
receives_uaru_1();
}else if(huart->Instance==UART7)
{
data7[data_len_7] = (char)RxBuff_7[0];
data_len_7++;
//接收完成
if(RxBuff_7[0] == '\n' || data_len_7 == MAX_LEN_7-1){//接收结束为换行符
//data7[data_len_7] = '\0';//字符串结束符
cmd(data7);//将命令转到处理函数
data_len_7 = 0;//清空缓存
}
//启用接收中断
receives_uaru_7();
}
}
//串口1启用中断服务程序
void receives_uaru_1(void){
HAL_UART_Receive_IT(&huart1, (uint8_t *)RxBuff_1, RXBUFFERSIZE_1);
//该函数会开启接收中断：标志位UART_IT_RXNE，并且设置接收缓冲以及接收缓冲接收最大数据量
}
//串口2启用中断服务程序
void receives_uaru_7(void){
HAL_UART_Receive_IT(&huart7, (uint8_t *)RxBuff_7, RXBUFFERSIZE_7);
//该函数会开启接收中断：标志位UART_IT_RXNE，并且设置接收缓冲以及接收缓冲接收最大数据量
}
void cmd(char *str){
printf("处理数据\n");
for(int i = 0; i <= data_len_7; i++){
printf("%c ", data7[i] );
}
printf("\n");
}
/* USER CODE END 1 */
