接受功能

mainwindow.cpp

@@ -28,10 +28,10 @@ MainWindow::MainWindow(QWidget *parent)
     ParityLabel = new QLabel(tr("校验位"));
 
     //发送与接受区域
-    RecvArea = new QPlainTextEdit();
+    RecvArea = new QTextEdit();
     RecvArea->setReadOnly(true);
     //RecvArea->setText(tr("Hello"));
-    SendArea = new QPlainTextEdit();
+    SendArea = new QTextEdit();
 
     //按钮
     OpenButton = new QPushButton(tr("打开串口"));
@@ -86,6 +86,7 @@ MainWindow::MainWindow(QWidget *parent)
     connect(ParityBox, QComboBox::currentTextChanged, serialController, SerialController::getParity);
     connect(this, sendData, serialController, SerialController::writeData);
     connect(SendButton, QPushButton::clicked, this, SendContent);
+    connect(serialController, SerialController::recvData, this, getRecv);
 }
 
 void MainWindow::CheckSerials()
@@ -142,6 +143,11 @@ void MainWindow::serialClosed()
     connect(OpenButton, QPushButton::clicked, this, OpenSerial);
 }
 
+void MainWindow::getRecv(QByteArray recv)
+{
+    RecvArea->setText(RecvArea->toPlainText()+QString(recv));
+}
+
 void MainWindow::OpenSerial()
 {
     QString portName = COMBox->currentText().split(' ')[0];

mainwindow.h

@@ -4,6 +4,7 @@
 #include <QWidget>
 #include <QComboBox>
 #include <QGridLayout>
+#include <QTextEdit>
 #include <QPlainTextEdit>
 #include <QPushButton>
 #include <QTimer>
@@ -34,16 +35,17 @@ class MainWindow : public QWidget
     void sendData(QString content);
 
 public slots:
-    void serialOpened();
-    void serialNotOpened();
-    void serialClosed();
+    void serialOpened();    //串口打开成功
+    void serialNotOpened(); //串口打开失败
+    void serialClosed();    //串口关闭
+    void getRecv(QByteArray recv); //串口接受数据
 
 private:
     QComboBox *COMBox, *BaudrateBox, *StopbitsBox, *DatabitsBox, *ParityBox;
     QStringList COMList, BaudrateList, StopbitsList, DatabitsList, ParityList;
     QLabel *BaudrateLabel, *StopbitsLabel, *DatabitsLabel, *ParityLabel;
     QGridLayout *layout;
-    QPlainTextEdit *RecvArea, *SendArea;
+    QTextEdit *RecvArea, *SendArea;
     QPushButton *OpenButton, *SendButton;
     QTimer *CheckTimer;
     SerialController *serialController;

serialcontroller.cpp

@@ -3,6 +3,7 @@
 SerialController::SerialController(QObject *parent) : QObject(parent)
 {
     serial = new QSerialPort(this);
+    connect(serial, QSerialPort::readyRead, this, handleRecv);
 }
 
 void SerialController::openSerial(QString name)
@@ -71,13 +72,16 @@ void SerialController::writeData(QString content)
 {
     if(serial->isWritable())
     {
-        qDebug()<<"Writing content: "<< content;
-        QByteArray data = content.toUtf8();
-        qDebug()<<"Byte: "<<data.toHex();
-        qint64 result = serial->write(data);
+        qint64 result = serial->write(content.toLatin1().data());
         if(result == -1)
             emit writeFailed();
         else
             emit writeSuccess(result);
     }
 }
+
+void SerialController::handleRecv()
+{
+    QByteArray data = serial->readAll();
+    emit recvData(data);
+}

serialcontroller.h

@@ -17,6 +17,7 @@ class SerialController : public QObject
     void closeSuccess();    //串口关闭成功
     void writeSuccess(int len); //串口发送成功 len为成功发送的字节
     void writeFailed(); //串口发送失败
+    void recvData(QByteArray content); //发送接收到的数据
 
 public slots:
     void openSerial(QString name);
@@ -26,6 +27,7 @@ public slots:
     void getDatabits(QString databits); //改变数据为
     void getParity(QString parity);     //改变校验位
     void writeData(QString content);     //发送数据
+    void handleRecv();                  //接受数据
 
 private:
     QSerialPort *serial;