Mesa 7i96s problem, only one stepgen works

Hi, I can´t get my mesa card to work right. (It did before.)

The Problem is that only one axis works at a time.

I,m using LinuxCNC 2.9.6 with QtPlasmaC.
Mesa is connected to DM542T drivers.

I swapped the plugs on the mesa to make sure the hardware works correctly.
Tried different stepgen configurations which made different outputs work, but only one at a time.
Looked at the hal pins, which seem good.

I´m out of ideas and hoping for yours.
Thanks

That sound's more like a wiring or hal file issue than hardware issue with the 7I96S

You might check than the DIR signals for all axis change when jogging each axis in different directions

Thank you for the suggestion.
I just measured the DIR signals, they all work fine.
The voltages are between 4.1 and 4.9V which seem a bit low to me, but it should still work with 3.3V.
Any other ideas?

Is that 4.1V under load?

4.1V and no load indicates either a damaged output or low 5V supply

What were the low state voltages of the DIR outputs?

The voltage changes a bit with load.
The one with the lower voltage has 0.4V at low state, but this one works.
Another one has 4.9V to 0.04V and doesn´t work.

 
"Another one has 4.9V to 0.04V and doesn´t work."

Sounds like a wiring issue as it seems there is  no load on that 7I96S output.

Are the outputs wired differentially? (STEP+and STEP- both used)

Turns out it was a stepper driver.
Apparently I mixed them up while swapping back and forth for testing.
I´m sorry, but thank you for the help!