Read from serial (synchronous)

[devnull]

Hi, i've tried to simply init a serial communication (Windows 10), send some text and expect and answer. But it always give me 0 bytes in return:

    var serialPort = scriptInf.createSerialPort();
    serialPort.setPortName("COM10");
    serialPort.setBaudRate(115200);
    serialPort.setDataBits(8);
    serialPort.setParity("None");
    serialPort.setStopBits("1");
    serialPort.setFlowControl("None");
    serialPort.setDTR(true);
    serialPort.setRTS(true);
    serialPort.readAll(); // flush RX-Buffer

    serialPort.writeString("ATZ\r");
    scriptThread.sleep(2000);
    UI_console.append(serialPort.readAll());

When i add an async reader, i get the desired answer there:

function serialBytesReceived()
{
    UI_console.append(serialPort.readAll());
}
serialPort.readyReadSignal.connect(serialBytesReceived);

So, isn't it possible to run the serial object without an async reader?

[Stefan Zieker]

Hi,

I never tried it without an async reader. But yes, it seems that is it not possible without an asymc reader.

[Anonymous]

What i did not get was, regardless how long i wait, that readAll() does not return anything. But if that was never planned to work, it's useless to think about and i'll do it with an asnyc function.