I am using an APM 2.6 that is connected to an Odroid USB via the Telemetry port (UART to USB). I am trying to get MAVLINK messages without the need to keep sending a HEARTBEAT message.
If I switch to USB connection (not telemetry) I get MAVLINK messages continuously without sending HEARTBEAT messages to the APM. I want to be able to do the same using the Telemetry port.
Is there any place in the firmware (ArduCopter) code that I can change? Or maybe just a parameter?
I am using 57600 Baud-Rate, I tried also 115200. And the USB cable is not connected.