serialportreader.cpp

Idź do dokumentacji tego pliku.

#include "inc/serialportreader.h"
#include <QMessageBox>
#include <QDebug>

SerialPortReader::SerialPortReader(QObject *parent) : QObject(parent)
{
    _serialSettings = new QSettings("ARRka","serial");
    _serial = new QSerialPort(this);
    _portOpened = false;

    connect(_serial,SIGNAL(readyRead()),this,SLOT(readDataFromSerial()));
    connect(_serial,SIGNAL(errorOccurred(QSerialPort::SerialPortError)),this,SLOT(serialErrorHandler(QSerialPort::SerialPortError)));
}

SerialPortReader::~SerialPortReader()
{
    delete _serial;
    delete _serialSettings;
}

void SerialPortReader::openSerialPort()
{
    _serial->setPortName(_serialSettings->value("serial/name").toString());
    _serial->setBaudRate(static_cast<QSerialPort::BaudRate>(_serialSettings->value("serial/baudRate").toInt()));
    _serial->setDataBits(static_cast<QSerialPort::DataBits>(_serialSettings->value("serial/dataBits").toInt()));
    _serial->setParity(static_cast<QSerialPort::Parity>(_serialSettings->value("serial/parity").toInt()));
    _serial->setStopBits(static_cast<QSerialPort::StopBits>(_serialSettings->value("serial/stopBits").toInt()));
    _serial->setFlowControl(QSerialPort::NoFlowControl);
    if (_serial->open(QIODevice::ReadOnly)) {
        _portOpened = true;
        emit portOpened();
    } else {
        _portOpened = false;
        emit portError(_serial->errorString());
    }
}

void SerialPortReader::closeSerialPort()
{
    if (_serial->isOpen()) {
        _serial->close();
        _portOpened = false;
        emit portClosed();
    }
}

void SerialPortReader::readDataFromSerial()
{
    rawData data;
    QByteArray s;
    QString messageBegin, messageEnd;
    int16_t checkSumReaded, checkSumComputed;
    s = _serial->readAll();

    QTextStream stream(s);

    stream >> messageBegin;
    while(messageBegin != "rr") {
        stream >> messageBegin;
    }

    stream >> data.X_XL >> data.Y_XL >> data.Z_XL >> data.X_G >> data.Y_G >> data.Z_G >> data.time >> checkSumReaded >> messageEnd;
    if (stream.status() == QTextStream::Ok && messageEnd == "xx") {
        checkSumComputed = data.X_XL + data.Y_XL + data.Z_XL + data.X_G + data.Y_G + data.Z_G + data.time - 2 * data.Y_XL;
        if (checkSumComputed == checkSumReaded)
            emit newData(data);
    }

}

void SerialPortReader::serialErrorHandler(QSerialPort::SerialPortError errorMessage)
{
    if (errorMessage == QSerialPort::ResourceError) {
        emit portError(_serial->errorString());
        _portOpened = false;
        closeSerialPort();
    }
}