分享自己做的一个单片机串口助手和测试代码

ID:904895 · 发表于 2022-1-7 13:26

分享自己做的一个单片机串口助手和测试代码欢迎评论

单片机源程序如下:

#include "stm32f10x.h"
void delay(int i)
{
int x;
while(i--)
for(x = 0; x < 1000; x++);
}
int main()
{
GPIO_InitTypeDef gpio;
USART_InitTypeDef usart1;
NVIC_InitTypeDef nvic;
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); //设置中断分组，只能设置一次
//使能串口时钟
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
//配置IO口为串口功能
//PA9--TX PA10--RX
gpio.GPIO_Pin = GPIO_Pin_9;
gpio.GPIO_Speed = GPIO_Speed_10MHz;
gpio.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOA, &gpio);
gpio.GPIO_Pin = GPIO_Pin_10;
gpio.GPIO_Speed = GPIO_Speed_10MHz;
gpio.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &gpio);
//设置串口属性
usart1.USART_BaudRate = 115200;
usart1.USART_WordLength = USART_WordLength_8b;
usart1.USART_StopBits = USART_StopBits_1;
usart1.USART_Parity = USART_Parity_No;
usart1.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
usart1.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_Init(USART1, &usart1);
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
USART_Cmd(USART1, ENABLE);
//要使用串口中断，那么就需要添加NVIC组
// NVIC_EnableIRQ(); //开启NVIC中断
// NVIC_SetPriority(); //设置抢占优先级
//
nvic.NVIC_IRQChannel = USART1_IRQn;
nvic.NVIC_IRQChannelPreemptionPriority = 2;
nvic.NVIC_IRQChannelSubPriority = 2;
nvic.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&nvic);
while(1);
}
void USART1_IRQHandler()
{
unsigned char ch;
if(USART_GetITStatus(USART1, USART_IT_RXNE)){
//接收数据
ch = USART_ReceiveData(USART1);
USART_SendData(USART1, ch);
}
//使能RCC中相应的GPIOA的时钟
*(int *)0x40021018 |= 1 << 2;
//配置相关的引脚 GPIOA5
//推挽输出速度10MHz
*(int *)0x40010800 &= ~(0xf << 20);
*(int *)0x40010800 |= 1 << 20;
while(1){
//开灯
*(int *)0x40010810 |= 1 << 5;
*(int *)0x40010810 &= ~(1 << 21);
delay(1000);
//关灯
*(int *)0x40010810 &= ~(1 << 5);
*(int *)0x40010810 |= 1 << 21;
delay(1000);
}
}

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#include "widget.h"
#include "ui_widget.h"
#include <QDebug>
#include <QMessageBox>
Widget::Widget(QWidget *parent) :
QWidget(parent),
ui(new Ui::Widget)
{
ui->setupUi(this);
ser_info = QSerialPortInfo::availablePorts();
foreach (const QSerialPortInfo &info, ser_info) {
ui->comboBox->addItem(info.portName());
qDebug() << info.portName();
}
}
Widget::~Widget()
{
delete ui;
}
void Widget::on_pb_clicked()
{
//打开串口
QString name = ui->comboBox->currentText();
serial.setPortName(name);
serial.setBaudRate(QSerialPort::Baud115200);
serial.setDataBits(QSerialPort::Data8);
serial.setFlowControl(QSerialPort::NoFlowControl);
serial.setStopBits(QSerialPort::OneStop);
serial.setParity(QSerialPort::NoParity);
if(serial.open(QIODevice::ReadWrite) != true){
QMessageBox::about(NULL, "警告", "打开串口失败");
return;
}
qDebug() << "serial open success";
connect(&serial, SIGNAL(readyRead()), this, SLOT(recv_data()));
}
void Widget::recv_data()
{
ui->lineEdit_2->setText(serial.readAll());
}
void Widget::on_pb_send_clicked()
{
serial.write(ui->lineEdit->text().toStdString().c_str());
}

复制代码

源码下载:

Serial Port.zip (975.1 KB, 下载次数: 9)

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分享自己做的一个单片机串口助手和测试代码

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