Connecting YAT terminal to Arduino Monitor via ESP32-S3-OTG

[vapisoft]

I connected the USB to a YAT terminal (on the PC) via Port 23 (the Arduino uses Port 21).
Now it works only Half duplex depending on the settings of the “Flow Control” parameter in the YAT settings.

Hardware (RTS/CTS) works from Arduino to Terminal.
Software (XOn/XOff) works from Terminal to Arduino.
Combined (RTS/CTS + XOn/XOff) works from Arduino to Terminal.

What do I need to do to make it work Full duplex?

The software:

Code: Untitled.cpp Select all

void loop() {

  while(HWSerial.available()){

    size_t l = HWSerial.available();

    uint8_t b[l];

    l = HWSerial.read(b, l);

    USBSerial.write(b, l);

    HWSerial.println("loop: from monitor");

  }

  while(USBSerial.available()){

    size_t l = USBSerial.available();

    uint8_t b[l];

    l = HWSerial.read(b, l);

    HWSerial.write(b, l);

    HWSerial.println("loop: from terminal");

  }