Kommunikation mit USB-Bridge in QextSerialPort

#include "mainwindow.h"

#include "ui_mainwindow.h"

MainWindow::MainWindow(QWidget *parent) :

    QMainWindow(parent),

    ui(new Ui::MainWindow)

{

    ui->setupUi(this);

    this->setFixedSize(1200,650);

    port = new QextSerialPort("COM18", QextSerialPort::EventDriven);

    port->setPortName("COM18"); /// habe ich aus hTerm übernommen; da war mein Gerät immer "COM18"

    port->setQueryMode(QextSerialPort::EventDriven);

    connect(port, SIGNAL(readyRead()), this, SLOT(onDataAvailable()));

    connect(this, SIGNAL(output(QList<int>)), this, SLOT(onOutput(QList<int>)));

    port->open(QIODevice::ReadWrite | QIODevice::Unbuffered);

    port->setBaudRate(BAUD9600);

    port->setFlowControl(FLOW_OFF);

    port->setParity(PAR_NONE);

    port->setDataBits(DATA_8);

    port->setStopBits(STOP_1);

    text = new QTextBrowser(this);

    text->resize(width(), height());

    sendData();

}

void MainWindow::onDataAvialable()

{

    QByteArray result = port->readAll();

            uchar tmp = 0;

            QList<int> data;

            for(int i = 0; i < result.size(); ++i)

            {

                const uchar val = result.at(i);

                if(i % 2 == 0)

                {

                    tmp = val;

                }

                else

                {

                    data << (tmp + val);

                }

            }

            output(data);

}

void MainWindow::sendData()

{

    QMutex m;

    m.lock();

    port->flush();

    const char tmp = 255;

    int i = port->write((const char*) &tmp, 1);

    m.unlock();

}

void MainWindow::onOutput(QList<int> src)

{

    for(int i=0;i<src.size();++i)

    {

        QString num;

        num.setNum(src.at(i));

        str.append(num);

        str.append("\n");

    }

    text->setText(str);

}

MainWindow::~MainWindow()

{

    delete ui;

}

#ifndef MAINWINDOW_H

#define MAINWINDOW_H

#include <QMainWindow>

#include "qextserialport.h"

#include <QMutex>

#include <QLabel>

#include <QTextBrowser>

#include <QGridLayout>

namespace Ui {

class MainWindow;

}

class MainWindow : public QMainWindow

{

    Q_OBJECT

public:

    explicit MainWindow(QWidget *parent = 0);

    ~MainWindow();

    void sendData();

signals:

    void output(QList<int> str);

public slots:

    void onDataAvialable( );

    void onOutput(QList<int> str);

private:

    QTextBrowser *text;

    Ui::MainWindow *ui;

    QextSerialPort *port;

    QString str;

};

#endif // MAINWINDOW_H