anapencere.cpp.autosave

#include "anapencere.h"
#include "ui_anapencere.h"
#include "benimseriport.h"
#include <QSerialPortInfo>
#include <QSerialPort>
#include <QDebug>
#include <QMessageBox>
#include <QString>

AnaPencere::AnaPencere(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::AnaPencere)
{
    ui->setupUi(this);
    setWindowTitle("Modbus RTU QT C++");
    ui->statusBar->showMessage("Durum: Bağlı Değil");
    ui->comboBox_2->addItems({"9600","38400","115200"});
    ui->comboBox_3->addItems({"8,O,1","8,E,1","8,N,2"});
    //bu bölümde bilgisayardaki halihazırda bulunun seri portların combobox ta listelenmesi sağlanır.
    //this section gives the available ports list in computer by combobox
    foreach (const QSerialPortInfo ports, QSerialPortInfo::availablePorts()){
        ui->comboBox->addItem(ports.portName());
    }
    serialPort=new QSerialPort(this);
    //Seri porttan veri girişi olduğunda readData fonksiyonunu çağırır.
    // calls readData function while data comes to serial port
    connect(serialPort,&QSerialPort::readyRead,this,&AnaPencere::readData);



}

AnaPencere::~AnaPencere()
{
    delete ui;
    serialPort->close();
}

void AnaPencere::on_pushButton_2_clicked()
{

    serialPort->setPortName(ui->comboBox->currentText().trimmed());
    QString ayar=ui->comboBox_3->currentText();
    QString a1=ayar.mid(0, 1);
    QString a2=ayar.mid(2,1);
    QString a3=ayar.mid(4,1);
    if(a1=="8"){
        serialPort->setDataBits(QSerialPort::Data8);
    }
    if(a2=="N"){
       serialPort->setParity(QSerialPort::NoParity);
    }else if (a2=="E") {
        serialPort->setParity(QSerialPort::EvenParity);

    }else if (a2=="O") {
        serialPort->setParity(QSerialPort::OddParity);
    }
    if(a3=="1"){
        serialPort->setStopBits(QSerialPort::OneStop);
    }else if(a3=="2"){
        serialPort->setStopBits(QSerialPort::TwoStop);
    }

    serialPort->setBaudRate(ui->comboBox_2->currentText().toInt());
    if(serialPort->open(QIODevice::ReadWrite)){
        serialPort->clear();
        ui->pushButton_2->setDisabled(true);
        ui->pushButton->setEnabled(true);
        ui->pushButtonGonder->setEnabled(true);
        ui->statusBar->showMessage("Durum: Bağlı"); //Shows wether connection established "Status : Online"
    }else{
        QMessageBox::critical(this, tr("Error"), serialPort->errorString());
    }


}

void AnaPencere::on_pushButton_clicked()
{
    serialPort->close();
    ui->pushButton->setDisabled(true);
    ui->pushButton_2->setEnabled(true);
    ui->statusBar->showMessage("Durum: Bağlı Değil"); // Shows wether connection close has done "Status: Oflline" 
    ui->pushButtonGonder->setEnabled(false);


}
void AnaPencere::readData()
{
    rData=serialPort->readAll();
    // rData.append(serialPort->readAll());
    ui->textEdit->append(rData.toHex().toUpper());


}

void AnaPencere::on_pushButtonGonder_clicked()
{

    QString veri=ui->lineEdit->text()+ui->lineEdit_2->text()+ui->lineEdit_3->text();
//  qDebug() << veri;
    QByteArray veri2;

    for(int i=0;i<veri.length();i+=2){
        QString a1=veri.mid(i,2);
        bool ok;
        unsigned int den=a1.toUInt(&ok,16);
//      qDebug() << a1 << ":" << den;
        veri2.append(char(den));

    }
    unsigned char uzunluk=uchar(veri2.length());
    unsigned int crc=crc_chk(reinterpret_cast<unsigned char*> (veri2.data()),uzunluk);
    //unsigned int crc=crc_chk((unsigned char*)veri2.data(),uzunluk);
    // LSbyte
    veri2.append(char(crc&0x00FF));
    //MSByte
    veri2.append(char(crc>>8));
    ui->lineEdit_4->setText( QString("%1").arg(crc , 0, 16));
    serialPort->write(veri2);
}
unsigned int AnaPencere:: crc_chk(unsigned char* data, unsigned char length)
{
    int j;
    unsigned int reg_crc=0xFFFF;
    while(length--){

       reg_crc ^= *data++;
        for(j=0;j<8;j++){
            if(reg_crc & 0x01){ /* LSB(b0)=1 */
                reg_crc=(reg_crc>>1) ^ 0xA001;
            }else{
               reg_crc=reg_crc >>1;
            }
        }
    }
    return reg_crc;
}