Hi all,
I have a PixHawk 2 (Cube) and I am using RFD900+ connected in TELEM1 port. The problem is that I want to power the RFD from my Mauch BEC, in order to use full TX power on my telemetry.
When I remove the jumper between pins 4 and 6 of RFD and power the module externally from my BEC thru pins 2 and 4, the RFD enters in bootloader mode (red LED solid on RFD) when I turn the system on.
I have to disconnect the power supply and reconnect again in order to make it work.
I tested disconnecting RTS and CTS pins between Cube and RFD, and then the problem disappear, but without these pins the telemetry link is unstable and slow, can not even load PX4 parameters in QGC.
I have tested the simple external power connection in ArduPilot and it works well.
Anyone knows how to fix this problem in PX4 Autopilot?