Stuck configuring 5i25 to run G540

Ok, I changed the Serv thread period and the P values.

The step and direction signals look MUCH better, no strange behavior.

Alas, the machine still doesn't move.

What does
mesaflash --device 5i25 --readhmid
say ?

Don't know if it matters, but here's a comparison of the Parallel card and the 5i25 output on step and direction for the x axis.

I'm just throwing stuff out there as I work on it.

PARALLEL CARD LEFT JOG


PARALLEL CARD RIGHT JOG


MESA 5I25 LEFT JOG


MESA 5I25 RIGHT JOG

It might be that the bus switch has been damaged (since you have a bad output)
and is loading its 4V power supply (that sets the pass-through voltage and is just a resistive voltage divider) so you are not getting enough high side drive to generate steps

I'm not a huge fan of that answer;) , but it's looking more and more like it might be the case

Do you know if P2 uses a different bus by chance? I ordered an adapter with the hope of reassigning everything to P2 for testing.