Problem trying to read from serial port

sundrakk

Hi everyone,
I'm having a hard time trying to read some data from the serial port. I'm able to write from it to a bluepill, but it seems that the program stucks on usbDevice -> readAll(), because after that I put a lot of qDebug() that will print something on the console debugger, and it doesn't happen.

The code for read the serial port is:

dataread = usbDevice -> readAll();
if(dataread[0] != 0){
    qDebug() << "ok";
}
digin.append(dataread);

if(dataread.size() >= 2){
    qDebug() << "Ok";

}

qDebug() << dataread;
qDebug() << digin;
qDebug() << dataread.size();
qDebug() << dataread.count();
qDebug() << dataread.length();
qDebug() << digin.size();
qDebug() << digin.count();
qDebug() << digin.length();

This is the last I tried, but nothing happens, I'm desperate.

jsulm

@sundrakk Please provide more information!
Where is the code you posted located?
Is it in a slot connected to readyRead signal from QSerialPort?