I have encountered a probleme with the refresh of the PWM output that leaded to a crash on our Dropix V2.1 unit.
After investigation we have found that the IO CPU that take care of sending the RC_OUT signal to the ESC is freezing, motor are stopping and drone is crashing.
I have opened an issue on ardupilot support board: PWM RC_Output no longer refresh and leads to crash
An other guy who is also using a Dropix got the same issue here: RC Inputs & Outputs freeze randomly (crashlog)
We are both using Ardupilot 3.4.5 version and a Dropix.
As the bug is not known by the developper team we would like to know if you have encountered the same kind of problem on some of the Dropix unit?
Do you have any idea how we can replicate this problem and try to solve this major issue?
Can you provide us the schematics of the power supply side and input/output ports of the IO_CPU to see if we can sense some signals?
If the IO_CPU resets, does it instantly come back to a normal operation or does it have to be initialized by the master CPU?
Thank you in advance,