用QT5写简单的串口调试工具

#include "mainwindow.h" #include <QSerialPort> #include <QSerialPortInfo> #include <QDebug> #include <QTimer> #include <QMessageBox> #include <QStandardItem> #include <QGridLayout> #include <QVBoxLayout> #include <QLineEdit> bool flag=false; bool flag_2=false; bool flag_3=false; MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) { widget = new QWidget(); this->setCentralWidget(widget); //布局 cmbPortName = new QComboBox(); cmbBaudRate = new QComboBox(); cmbParity = new QComboBox(); cmbDataBits = new QComboBox(); cmbStopBits = new QComboBox(); cmbFlowControl = new QComboBox(); btnOpen = new QPushButton(tr("打开串口")); teReceiveData = new QTextEdit(); teReceiveData->setEnabled(false); teSendData = new QTextEdit(tr("hello world!")); lPortName = new QLabel(tr("串口号")); lBaudRate = new QLabel(tr("波特率")); lParity= new QLabel(tr("奇偶校验位")); lDataBits= new QLabel(tr("数据位")); lStopBits= new QLabel(tr("停止位")); lFlowControl = new QLabel(tr("流 控")); cbSend = new QCheckBox(tr("HEX发送")); cbDisplay = new QCheckBox(tr("HEX显示")); cbTimingSend = new QCheckBox(tr("定时发送")); letime = new QLineEdit(tr("1000")); lCis = new QLabel(tr("ms/次")); lReceiveData = new QLabel(tr("数据接收区")); lSendData = new QLabel(tr("数据发送区")); btnSend = new QPushButton(tr("发送数据")); QVBoxLayout *leftLayout = new QVBoxLayout(this); leftLayout->addWidget(lPortName); leftLayout->addWidget(lBaudRate); leftLayout->addWidget(lDataBits); leftLayout->addWidget(lStopBits); leftLayout->addWidget(lParity); leftLayout->addWidget(lFlowControl); leftLayout->addWidget(cbSend); leftLayout->addWidget(cbDisplay); leftLayout->addWidget(cbTimingSend); leftLayout->addWidget(letime); leftLayout->addWidget(lCis); QVBoxLayout *midLayout = new QVBoxLayout(this); midLayout->addWidget(cmbPortName); midLayout->addWidget(cmbBaudRate); midLayout->addWidget(cmbDataBits); midLayout->addWidget(cmbStopBits); midLayout->addWidget(cmbParity); midLayout->addWidget(cmbFlowControl); QHBoxLayout *rightfootLayout = new QHBoxLayout(this); rightfootLayout->addWidget(btnOpen); rightfootLayout->addWidget(btnSend); QVBoxLayout *rightLayout = new QVBoxLayout(this); rightLayout->addWidget(lReceiveData); rightLayout->addWidget(teReceiveData); rightLayout->addWidget(lSendData); rightLayout->addWidget(teSendData); rightLayout->addLayout(rightfootLayout); QHBoxLayout *mainLayout = new QHBoxLayout(this); mainLayout->addLayout(leftLayout); mainLayout->addLayout(midLayout); mainLayout->addLayout(rightLayout); widget->setLayout(mainLayout); // setFixedHeight(sizeHint().height()); // mainLayout->addWidget(lPortName,0,0); // mainLayout->addWidget(cmbPortName,0,1); // mainLayout->addWidget(lBaudRate,1,0); // mainLayout->addWidget(cmbBaudRate,1,1); // mainLayout->addWidget(lParity,2,0); // mainLayout->addWidget(cmbParity,2,1); // mainLayout->addWidget(lDataBits,3,0); // mainLayout->addWidget(cmbDataBits,3,1); // mainLayout->addWidget(lStopBits,4,0); // mainLayout->addWidget(cmbStopBits,4,1); // mainLayout->addWidget(lReceiveData,0,2); // mainLayout->addWidget(teReceiveData,1,2,3,2); // mainLayout->addWidget(lSendData,2,2); // mainLayout->addWidget(teSendData,3,2,3,2); // mainLayout->addWidget(btnOpen,4,2); // mainLayout->addWidget(btnSend,4,3); /****************************串口初始化*****************************/ //读取串口信息 foreach (const QSerialPortInfo &info, QSerialPortInfo::availablePorts()) { // qDebug()<<"Name:"<<info.portName(); // qDebug()<<"Description:"<<info.description(); // qDebug()<<"Manufacturer:"<<info.manufacturer(); //这里相当于自动识别串口号之后添加到了cmb，如果要手动选择可以用下面列表的方式添加进去 QSerialPort serial; serial.setPort(info); if(serial.open(QIODevice::ReadWrite)) { //将串口号添加到cmb cmbPortName->addItem(info.portName()); //关闭串口等待人为(打开串口按钮)打开 serial.close(); } } QStringList baudList;//波特率 QStringList parityList;//校验位 QStringList dataBitsList;//数据位 QStringList stopBitsList;//停止位 QStringList FlowControlList;//流控 baudList<<"50"<<"75"<<"100"<<"134"<<"150"<<"200"<<"300" <<"600"<<"1200"<<"1800"<<"2400"<<"4800"<<"9600" <<"14400"<<"19200"<<"38400"<<"56000"<<"57600" <<"76800"<<"115200"<<"128000"<<"256000"; cmbBaudRate->addItems(baudList); cmbBaudRate->setCurrentIndex(12); parityList<<"无"<<"奇"<<"偶"; parityList<<"标志"; parityList<<"空格"; cmbParity->addItems(parityList); cmbParity->setCurrentIndex(0); dataBitsList<<"5"<<"6"<<"7"<<"8"; cmbDataBits->addItems(dataBitsList); cmbDataBits->setCurrentIndex(3); stopBitsList<<"1"; stopBitsList<<"1.5"; stopBitsList<<"2"; cmbStopBits->addItems(stopBitsList); cmbStopBits->setCurrentIndex(0); FlowControlList<<"硬控"<<"软控"<<"无"<<"custom"; cmbFlowControl->addItems(FlowControlList); cmbFlowControl->setCurrentIndex(2); //设置按钮可以被按下 // btnOpen->setCheckable(true); myTime = new QTimer(); myTime->setInterval(1000); connect(btnOpen,SIGNAL(clicked()),this,SLOT(on_btnOpen_clicked())); connect(btnSend,SIGNAL(clicked()),this,SLOT(on_btnSend_clicked())); connect(cbSend,SIGNAL(clicked()),this,SLOT(on_cbSend_clicked())); connect(cbDisplay,SIGNAL(clicked()),this,SLOT(on_cbDisplay_clicked())); connect(cmbPortName,SIGNAL(currentTextChanged(QString)),this,SLOT(on_cmbPortName_change())); connect(myTime,SIGNAL(timeout()),this,SLOT(on_btnSend_clicked())); connect(cbTimingSend,SIGNAL(toggled(bool)),this,SLOT(sendDataOnTime(bool))); } MainWindow::~MainWindow() { } /****************************串口设置******************************/ void MainWindow::on_btnOpen_clicked() { if(btnOpen->text() == "打开串口") { my_serialport = new QSerialPort(this); btnOpen->setText(tr("关闭串口")); //设置串口号 my_serialport->setPortName(cmbPortName->currentText()); //以读写方式打开串口 if(my_serialport->open(QIODevice::ReadWrite)) { //设置波特率 my_serialport->setBaudRate(cmbBaudRate->currentText().toInt()); //设置数据位 my_serialport->setDataBits(QSerialPort::Data8); //设置校验位 my_serialport->setParity(QSerialPort::NoParity); //设置流控制 my_serialport->setFlowControl(QSerialPort::NoFlowControl); //设置停止位 my_serialport->setStopBits(QSerialPort::OneStop); //每秒读一次 timer = new QTimer(this); connect(timer, SIGNAL(timeout()), this, SLOT(readComDataSlot())); timer->start(1000); //setNonSelectable(); } } else { timer->stop(); btnOpen->setText("打开串口"); // setSelectable(); my_serialport->close(); } } /****************************数据传输***********************