Qt 5实现串口调试助手 （源工程文件、0积分下载）

#include "widget.h" #include "ui_widget.h" #include <QMessageBox> #include <QDebug> #include <QFile> #include <QFileDialog> #include <QTimer> #include <QStringList> Widget::Widget(QWidget *parent) : QWidget(parent) , ui(new Ui::Widget) { ui->setupUi(this); resize(800,600); //窗口限制 setWindowTitle("Serial_Port"); SendByte=0;ReceByte=0; serial = new QSerialPort(this); ui->comboBox_2->setCurrentIndex(5); //初始化 ui->comboBox_3->setCurrentIndex(3); ui->comboBox_4->setCurrentIndex(2); ui->comboBox_5->setCurrentIndex(0); ui->lineEdit->setText("1000"); ui->checkBox->setCheckState(Qt::Checked); ui->checkBox_4->setCheckState(Qt::Checked); ui->pushButton_7->setEnabled(false); ui->checkBox_7->setEnabled(false); connect(serial,SIGNAL(readyRead()), //信号与槽函数 this,SLOT(serialPort_readyRead())); Times=0;portTime=0; lineEditData=1000; timer = new QTimer; timer->start(1); //connect(timer,&QTimer::timeout,this,&Widget::TimerEvent); connect(timer,SIGNAL(timeout()),this,SLOT(TimerEvent())); //信号与槽函数 } Widget::~Widget() { delete ui; } void Widget::on_pushButton_2_clicked() { if(ui->pushButton_2->text()==QString("打开串口")) { //设置串口名 serial->setPortName(ui->comboBox->currentText()); //设置波特率 serial->setBaudRate(ui->comboBox_2->currentText().toInt()); //设置数据位 switch(ui->comboBox_3->currentText().toInt()) { case 5:serial->setDataBits(QSerialPort::Data5);break; case 6:serial->setDataBits(QSerialPort::Data6);break; case 7:serial->setDataBits(QSerialPort::Data7);break; case 8:serial->setDataBits(QSerialPort::Data8);break; default:serial->setDataBits(QSerialPort::UnknownDataBits);break; } //设置奇偶校验位 switch(ui->comboBox_4->currentIndex()) { case 0:serial->setParity(QSerialPort::EvenParity);break; case 1:serial->setParity(QSerialPort::MarkParity);break; case 2:serial->setParity(QSerialPort::NoParity);break; case 3:serial->setParity(QSerialPort::OddParity);break; default:serial->setParity(QSerialPort::UnknownParity);break; } //设置停止位 switch (ui->comboBox_5->currentIndex()) { case 0:serial->setStopBits(QSerialPort::OneStop);break; case 1:serial->setStopBits(QSerialPort::OneAndHalfStop);break; case 2:serial->setStopBits(QSerialPort::TwoStop);break; default:serial->setStopBits(QSerialPort::UnknownStopBits);break; } //设置流控制 serial->setFlowControl(QSerialPort::NoFlowControl); //打开串口 if(!serial->open(QIODevice::ReadWrite)) { QMessageBox::about(NULL,"提示","无法打开串口"); return; } //下拉控件失能 ui->comboBox->setEnabled(false); ui->comboBox_2->setEnabled(false); ui->comboBox_3->setEnabled(false); ui->comboBox_4->setEnabled(false); ui->comboBox_5->setEnabled(false); ui->pushButton->setEnabled(false); ui->checkBox_7->setEnabled(true); ui->pushButton_2->setText(tr("关闭串口")); ui->pushButton_7->setEnabled(true); } else { //关闭串口 serial->close(); //下拉按键使能 ui->comboBox->setEnabled(true); ui->comboBox_2->setEnabled(true); ui->comboBox_3->setEnabled(true); ui->comboBox_4->setEnabled(true); ui->comboBox_5->setEnabled(true); ui->pushButton->setEnabled(true); ui->checkBox_7->setEnabled(false); ui->pushButton_2->setText(tr("打开串口")); //发送失能 ui->pushButton_7->setEnabled(false); } } void Widget::on_pushButton_clicked() //扫描串口 { int i,n; ui->comboBox->clear(); portStringLine.clear(); foreach(const QSerialPortInfo &info,QSerialPortInfo::availablePorts()) portStringLine +=info.portName(); n=portStringLine.size(); for(i=0;i<n;i++) { serial->setPortName(portStringLine[i]); if(!serial->open(QIODevice::ReadWrite)) { portStringLine[i]+="(不可用)"; QVariant v(0); //禁用 ui->comboBox->setItemData(1, v, Qt::UserRole - 1); } else { QVariant v(1|32); //可用 ui->comboBox->setItemData(1, v, Qt::UserRole - 1); } serial->close(); } ui->comboBox->addItems(portStringLine); } void Widget::serialPort_readyRead() //串口接收 { int i,length; QString lasttext; if(ui->checkBox_3->checkState()!=Qt::Checked) { lasttext=ui->textEdit->toPlainText(); Receivetext = serial->readAll(); ReceByte+=Receivetext.length(); ui->label_10->setText(QString::number(ReceByte)); if(ui->checkBox_2->checkState()==Qt::Checked) { Receivetext=Receivetext.toLatin1().toHex(); //字符串转十六进制 length=Receivetext.length(); for(i=0;i<=length/2;i++) { Receivetext.insert((2+3*i),' '); //插入空格字符串 } } else Receivetext=Receivetext.toLatin1(); lasttext=lasttext.append(Receivetext); ui->textEdit->setText(lasttext); } } void Widget::on_pushButton_7_clicked() //串口发送 { QByteArray bytearray; Sendtext=ui->textEdit_2->toPlainText(); if(ui->checkBox_6->checkState()==Qt::Checked) Sendtext += '\n'; if(ui->checkBox_5->checkState()!=Qt::Checked) bytearray = Sendtext.toLatin1(); else bytearray = QByteArray::fromHex(Sendtext.toUtf8()); //十六进制转字符串 serial->write(bytearray); //定长发送 //serial->write((const char *)param_data,16); SendByte+=Sendtext.length(); ui->label_9->setText(QString::number(SendByte)); ui->textEdit_2->moveCursor(QTextCursor::End); } void Widget::TimerEvent() //定时事件，1ms { int t=500; //扫描串口时间 Times++;portTime++; if(Times>=lineEditData) //定时发送 { if(ui->checkBox_7->checkState()==Qt::Checked) Widget::on_pushButton_7_clicked(); Times=0; } if(portTime==t) //定时扫描串口 { QStringList newPortStringList; newPortStringList.clear(); foreach(const QSerialPortInfo &info,QSerialPortInfo::availablePorts()) newPortStringList += info.portName(); if(newPortStringList.size() != portStringLine.size()) { portStringLine = newPortStringList; ui->comboBox->clear(); ui->comboBox->addItems(portStringLine); } portTime=0; } } void Widget::on_pushButton_8_clicked() //清除计数 { SendByte=0; ReceByte=0; ui->label_9->setText(QString::number(SendByte)); ui->label_10->setText(QString::number(ReceByte)); } void Widget::on_pushButton_4_clicked() //清除接收区 { ui->textEdit->clear(); } void Widget::on_pushButton_6_clicked() //清除发送区 { ui->textEdit_2->clear(); } void Widget::on_checkBox_clicked() //文本接收 { ui->checkBox->setCheckState(Qt::Checked);