Hi,
I am trying to convert my DMC2 Mini from the chinese Mach3 board it came with, to LinuxCNC via a Mesa 7i76eu. And I have most of it working by now

But I am having an issue with two simple inputs.
I have two probes, a hight pug and a xy probe, that basically just connects to GND when triggered. They are connected to the mesa with a 10kOhm pull up resistor. This is what I am seeing when I power the machine on:
- The input pin on the Mesa card reads 12v and the input is as expected high/true in hal show
- I then trigger the probe and the input pin now reads 0v, and the input is low/false in hal show
- After I "release" the probe the input pin returns to 12v, BUT the input remains low/false in hal show
Any ideas why the input in hal doesnt return to high when the pin reads 12v with a multimeter
Field power is 24v, and all voltage readings are done between field GND and the input pin.
Thanks in advance