Assign motors to GPIO/Pins

PX4 Autopilot
1

Hello,

I am currently working on getting PX4 to run on my Matek H743 board.
I was able to build the bootloader and firmware and upload it on the FC. When testing in QGC only 2/4 motors respond on my quad. I suppose that the wrong pins are assigned in the firmware. I am able to build a custom firmware but I haven’t found where to assign the hardware pins.

I have found this table on the Matek Homepage that I would like to check with the PX4 code:

grafik
grafik693×1287 85.2 KB

The working motors are in Group1

Can you guide me / tell me if this is the correct thing to do in general?

2

You can assign pins in QGoundConrol on Actuators page.
I also had experience with some of the motor outputs not working if UACAN is enabled. You might want to set UAVCAN_ENABLE : 0

3

Thanks for the reply. Sadly I cannot test this further, my FC gets really hot with the matek_h743 build of PX4. I have described it in more details here: FC bricked after firmware change

Maybe it is my fault but I wouldn’t recommend working with MatekH743 + PX4, at least for inexperienced users.