THCAD selection including ohmic sensing

PCW wrote:

Yes the 5i25 --> 7I76 config is wired the same as the 7I96 and 7I76E configs:
The encoder connector has 3 encoders with only 'A' channels so instead of
the standard 1 encoder with A,B,IDX you have 3 encoders with only 'A' pins

So I've flashed my 5i25 with the firmware you provided in this post and have verified that I do in fact have three "A" pins

I've got the THCAD-5 for ohmic sensing wired into what was encoder B+/-. When I start up linuxcnc it cannot find any other encoder pins. Here's a ss of what's available when viewed from my router config.

Following along with the documentation in the primer, it says hm2_7i76e.0.encoder.02.velocity. I'm trying to parallel this with a hm2_5i25.0.encoder.01(or 02).velocity . Obviously I'm missing something about how the 2 additional A channels are connected.

EDIT: Figured it out, forgot to enable the 2nd encoder in the machine hal file. "loadrt hm2_pci config=" num_encoders=2..."
Now it's running