[Qt-interest] serial communication

[Denis Akhmetzyanov]

Hi,
I suggest you to try QextSerialPort
http://code.google.com/p/qextserialport/ instead
of the native calls. It is a convenient class implements QIODevice and
supports signal/slot technology and asynchronous calls.


2010/3/30 Yuvraj <yuvraj.ragupathi at indieontech.com>

>   Hi ,
>
> Here i am opening the serial communication device file and writing some
> data, in other hand i am not getting the data due to enter key( "/r/n")
>
> my code is
>
>  file_descriptor = open("/dev/ttyS0",O_RDWR);
>     if(file_descriptor > 0)
>     {
>          timer = new QTimer;
>         timer1 =new QTimer;
>
> QObject::connect(timer,SIGNAL(timeout()),this,SLOT(browser_append()));
>
> QObject::connect(timer1,SIGNAL(timeout()),this,SLOT(on_send_clicked()));
>         timer->start(1);
>         timer1->start(10);
>     }
>     else
>     {
>         QMessageBox::information(0,"","Connection failed");
>     }
>
>
> void  window::on_send_clicked()
> {
>      int file_id;
>    char send_data[150]= "Hi Hello\r\n";
>     if(file_descriptor > 0)
>     {
>        file_id= write(file_descriptor,send_data,15);
>        ui->send_text->clear();
>        ui->send_text->setFocus();
>        if(file_id > 0)
>        {
>            qDebug()<<"Data successfully written \n";
>        }
>
>
>     }
>
> }
>
> any  ideas?
>
> Thanks
>
> Yuvaraj R
>
>
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