Qt版串口调试助手

#include "mainwindow.h" #include "ui_mainwindow.h" #include <QtSerialPort/QtSerialPort> #include <QtSerialPort/QSerialPortInfo> #include <QDebug> MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) { ui->setupUi(this); foreach (const QSerialPortInfo &info, QSerialPortInfo::availablePorts())//获取可用的串口 ui->serialPortComboBox->addItem(info.portName()); ui->radioButtonTextR->setChecked(true); ui->radioButtonTextS->setChecked(true); serialPort = new QSerialPort(); setWindowTitle(tr("串口助手")); //***************************串口接收程序**********************************// // if (serialPort->waitForReadyRead(100)){ // // read request // QByteArray requestData = serialPort->readAll(); // while (serialPort->waitForReadyRead(10)) // requestData += serialPort->readAll(); // qDebug()<<requestData; // // write response //// QByteArray responseData = currentRespone.toLocal8Bit(); //// serial.write(responseData); //// if (serial.waitForBytesWritten(waitTimeout)) { //// QString request(requestData); //// emit this->request(request); //// } else { //// emit timeout(tr("Wait write response timeout %1") //// .arg(QTime::currentTime().toString())); //// } // } else { //// emit timeout(tr("Wait read request timeout %1") //// .arg(QTime::currentTime().toString())); // } //***************************串口接收程序**********************************// } MainWindow::~MainWindow() { delete ui; delete serialPort; } void MainWindow::on_openButton_clicked() //打开串口槽函数 { serialPort->setPortName(ui->serialPortComboBox->currentText());//获取要打开的串口 if(!serialPort->isOpen()) //如果之前是没有打开的则进行open动作 { if(serialPort->open(QIODevice::ReadWrite))//如果打开成功了，则按钮显示“关闭” { //××××××××××××××××××××××××××设置默认串口参数××××××××××××××××××××××××××××××××// //serialPort->setBaudRate(QSerialPort::Baud115200); //波特率19200 serialPort->setBaudRate(ui->comboBoxBaud->currentText().toInt(),QSerialPort::AllDirections); serialPort->setDataBits(QSerialPort::Data8); //数据位8位 serialPort->setFlowControl(QSerialPort::NoFlowControl);//无流控 switch (ui->comboBoxStop->currentIndex()) { case 0: serialPort->setStopBits(QSerialPort::OneStop); //1位停止位 break; case 1: serialPort->setStopBits(QSerialPort::OneAndHalfStop); //1.5位停止位 break; case 2: serialPort->setStopBits(QSerialPort::TwoStop); //2位停止位 break; default: serialPort->setStopBits(QSerialPort::UnknownStopBits); break; } switch (ui->comboBoxParity->currentIndex()) { case 0: serialPort->setParity(QSerialPort::NoParity); //无较验位 break; case 1: serialPort->setParity(QSerialPort::OddParity); //奇较验位 break; case 2: serialPort->setParity(QSerialPort::EvenParity); //偶较验位 break; default: break; } serialPort->setReadBufferSize(500); //设置数据缓冲区大小,以后可以写成宏的形式 //××××××××××××××××××××××××××设置默认串口参数××××××××××××××××××××××××××××××××// connect(serialPort, SIGNAL(readyRead()), this, SLOT(readyReadSlot())); ui->openButton->setText(tr("关闭")); } else { qDebug()<<serialPort->errorString(); this->statusBar()->showMessage(serialPort->errorString()); } } else //如果串口处于打开的状态，则关闭 { serialPort->close(); ui->openButton->setText(tr("打开")); } } void MainWindow::on_sendButton_clicked() { QString str = ui->sendTextEdit->toPlainText();//获取要发送的内容 if(serialPort->isOpen()) //如果之前是没有打开的则进行open动作 { if(ui->radioButtonTextS->isChecked()) { //sendData = str.toLatin1(); QByteArray sendData = str.toUtf8(); qDebug() << "发送文本"; serialPort->write(sendData); }else if(ui->radioButtonHexS->isChecked()) { QByteArray str2 = QByteArray::fromHex (str.toLatin1().data()); qDebug() << "发送十六进制"; serialPort->write(str2); } } } void MainWindow::readyReadSlot() //接收数据槽函数 { QByteArray arr = serialPort->readAll(); ui->receiveTextEdit->moveCursor(QTextCursor::EndOfLine); if(ui->radioButtonTextR->isChecked()) { ui->receiveTextEdit->insertPlainText(arr); qDebug() << "接收文本"; }else if(ui->radioButtonHexR->isChecked()) { qDebug() << "接收十六进制"; // ui->receiveTextEdit->toPlainText(); ui->receiveTextEdit->insertPlainText(arr.toHex()); } //ui->receiveTextEdit->setText(arr); //ui->receiveTextEdit->append(arr); } void MainWindow::on_pushButtonClearR_clicked() { ui->receiveTextEdit->clear(); } void MainWindow::on_pushButtonClearS_clicked() { ui->sendTextEdit->clear(); }