Changing a PWM channel

[Ador2]

I'm using PX4 with fixed wing airframe, I want to change the throttle channel for example to be channel 6.
is that possible using parameters? or what should i do?

[dagar]

Currently it's done by setting the mixer in an airframe.

PX4-Autopilot/ROMFS/px4fmu_common/init.d/airframes/2100_standard_plane

Line 29 in 4e3d944

set MIXER AETRFG

https://github.com/PX4/PX4-Autopilot/blob/master/ROMFS/px4fmu_common/mixers/AETRFG.main.mix

So for right now you can either change the set MIXER AETRFG or pick a different airframe that matches your desired output.

We're currently working on a complete overhaul of the output system that will allow you to directly modify everything via parameters or a GUI. mavlink/qgroundcontrol#9952

[Ador2]

I'm using AAVVTWFF.main.mix actually but for AETRFG.main.mix if I were to copy the content of CH3 here and overwrite CH6 with it, that would consider channel 3 and 6 for throttle, since my CH3 is dead I can use CH6 instead?

[Ador2]

Yeah that works perfectly, thanks