@bschulzhf Take a look at the voxl-vision-hub code. Specifically the vio manager: https://gitlab.com/voxl-public/voxl-sdk/services/voxl-vision-hub/-/blob/dev/src/vio_manager.c?ref_type=heads

Hi @qubotics-admin ,

Between the two tests, i see that one test shows 16V input voltage and the other test ~7.2V. Was the voltage applied to the ESC the same during the tests (and the ESC read it incorrectly) or the voltage was in fact different?

Such a big difference can have adverse affects on spin-up if the change in voltage is not accounted for in the esc tuning param file.

It is possible that if the ESC does not have correct parameters for your motor / propeller, the sinusoidal spinup does not have enough power and loses tracking during the spin-up phase and fails to transition to steady-state spin stage.

The ESC channel 2 on the FPV ESC is the only channel that measures the total board current, so that is why the printout is slightly different when you test the channel 2.

Please provide the following details that will help us figure out the issue:

what voltage are you testing the ESC? 16V or 7V? what motor/propeller do you have and which ESC params are you using? does the "bad" ESC channel ever properly spin up, or it never spins up at any battery voltage? is this the first time you are using this motor + propeller + voltage combination with the FPV ESC , or it has been previously working reliably? have you performed any ESC parameter tuning using voxl-esc tools?

Alex

@mkriesel It's possible the kernel you're flashing is incorrect. Can you provide the full terminal output of the install?

Hi Cbay,
There is a small clock buffer on the edge of the PCB. An RMA can only replace the whole board, not replace a single device. The part to check would be here: image (1).png