Hexa conversation problem "FF8AE8CB42" why he recupers "42" as "B" here "\xFF\x8A\xE8\xCB""B" ?

imene

Hello
I get this in application output :
trame Recupéré: "\xFF\x8A\xE8\xCB""B"

insted of this: "\xFF\x8A\xE8\xCB\x42" hexa form of ""FF8AE8CB42""!

//New Frame to send
               QCanBusFrame frameconnect;
               frameconnect.setFrameId(101);
               QByteArray payloadconnect= QByteArray::fromHex("FF8AE8CB42");
               frameconnect.setPayload(payloadconnect);

               m_canDevice->writeFrame(frameconnect);

               m_canDevice->waitForFramesReceived(2000); //attend reception trame 2sec snn out
              //New Frame to received


               QCanBusFrame frame_R = m_canDevice->readFrame(); //read m_canDevice trame et stocage dans la nouvelle "frametestconnect"

               QByteArray data_R = frame_R.payload();//recupération de payload du trame

               qDebug() << "trame Recupéré: " << frame_R.frameId();
               qDebug() << "trame Recupéré: " << data_R;

Christian Ehrlicher

But 'B' is 0x42 ...
If you want a hex representation use QByteArray::toHex()

imene

@Christian-Ehrlicher yess thanks this how it works : https://bytetool.web.app/en/ascii/