完成发送数据

修复了数据位的bug

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 QTextEdit();
+    RecvArea = new QPlainTextEdit();
     RecvArea->setReadOnly(true);
-    RecvArea->setText(tr("Hello"));
-    SendArea = new QTextEdit();
+    //RecvArea->setText(tr("Hello"));
+    SendArea = new QPlainTextEdit();
 
     //按钮
     OpenButton = new QPushButton(tr("打开串口"));
@@ -84,6 +84,8 @@ MainWindow::MainWindow(QWidget *parent)
     connect(StopbitsBox, QComboBox::currentTextChanged, serialController, SerialController::getStopbits);
     connect(DatabitsBox, QComboBox::currentTextChanged, serialController, SerialController::getDatabits);
     connect(ParityBox, QComboBox::currentTextChanged, serialController, SerialController::getParity);
+    connect(this, sendData, serialController, SerialController::writeData);
+    connect(SendButton, QPushButton::clicked, this, SendContent);
 }
 
 void MainWindow::CheckSerials()
@@ -147,12 +149,17 @@ void MainWindow::OpenSerial()
     emit requestOpen(portName);
     emit setBaudRate(BaudrateBox->currentText());
     emit setStopBits(StopbitsBox->currentText());
-    emit setDataBits(StopbitsBox->currentText());
+    emit setDataBits(DatabitsBox->currentText());
     emit setParity(ParityBox->currentText());
-
 }
 
 void MainWindow::CloseSerial()
 {
     emit requestClose();
 }
+
+void MainWindow::SendContent()
+{
+    QString content = SendArea->toPlainText();
+    emit sendData(content);
+}

mainwindow.h

@@ -4,7 +4,7 @@
 #include <QWidget>
 #include <QComboBox>
 #include <QGridLayout>
-#include <QTextEdit>
+#include <QPlainTextEdit>
 #include <QPushButton>
 #include <QTimer>
 #include <QSerialPortInfo>
@@ -31,6 +31,7 @@ signals:
     void setStopBits(QString stopbits);
     void setDataBits(QString databits);
     void setParity(QString parity);
+    void sendData(QString content);
 
 public slots:
     void serialOpened();
@@ -42,7 +43,7 @@ private:
     QStringList COMList, BaudrateList, StopbitsList, DatabitsList, ParityList;
     QLabel *BaudrateLabel, *StopbitsLabel, *DatabitsLabel, *ParityLabel;
     QGridLayout *layout;
-    QTextEdit *RecvArea, *SendArea;
+    QPlainTextEdit *RecvArea, *SendArea;
     QPushButton *OpenButton, *SendButton;
     QTimer *CheckTimer;
     SerialController *serialController;
@@ -50,6 +51,7 @@ private:
 
     void OpenSerial();
     void CloseSerial();
+    void SendContent();
 };
 
 #endif // MAINWINDOW_H

serialcontroller.cpp

@@ -11,8 +11,7 @@ void SerialController::openSerial(QString name)
     if(serial->open(QIODevice::ReadWrite))
     {
         //串口打开成功
-        serial->waitForBytesWritten();
-        serial->waitForReadyRead();
+        serial->setDataTerminalReady(false);
         emit openSuccess();
     }
     else
@@ -67,3 +66,18 @@ void SerialController::getParity(QString parity)
         serial->setParity(QSerialPort::EvenParity);
     qDebug()<<"The parity now is "<<parity;
 }
+
+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);
+        if(result == -1)
+            emit writeFailed();
+        else
+            emit writeSuccess(result);
+    }
+}

serialcontroller.h

@@ -12,17 +12,20 @@ public:
     explicit SerialController(QObject *parent = nullptr);
 
 signals:
-    void openSuccess();
-    void openFailed();
-    void closeSuccess();
+    void openSuccess(); //串口打开成功
+    void openFailed();  //串口打开失败
+    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
 
 public slots:
     void openSerial(QString name);
     void closeSerial();
-    void getBaudrate(QString baudrate);
-    void getStopbits(QString stopbits);
-    void getDatabits(QString databits);
-    void getParity(QString parity);
+    void getBaudrate(QString baudrate); //改变波特率
+    void getStopbits(QString stopbits); //改变停止位
+    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
 
 private:
     QSerialPort *serial;