Need Help with Mesa 5i20 Stepgen Config

I am very new to linuxcnc and could really use some help configuring a MESA 5i20 (with 7i42TA breakout). I have not been able to get the step gen pins (step and direction) to work. I do not believe I am connecting the wrong pins (been successful with other digital I/O, limit switch, etc., connections). Attached are my hal and ini files. Also attached are the pin assignments (I am fairly certain I have the right pins) and a screenshot of latency test results.

For what it's worth, I was also unable to get the MESA hardware pwm to work, so I went with software generated PWM and all went fine. Not sure if there is a relation (common error on my part?).

I have done my best to read the documentation, forum, etc. and am at a loss. Thanks for the help.

I intentionally disabled PWM since I never got it to work on the 5i20, and since I really have no need for a fast PWM I went with software PWM which I was able to get working easily. My issue now is that I can't get the step or direction to work and I really need the speed of the FPGA.

I am as sure as I know how to be. Based on the listing after I start linuxcnc (see below), the correct pins are 24 (step) and 25 (direction). These correspond to 00 and 01 (I hope) on the second 7i42TA breakout board. Each breakout boards pins are numbered from 0 - 23, so IO Pin 24 and 25 roll over to the second boards 00 and 01 pins. I am watching the direction pin with an oscilloscope as I jog the x-axis in +X and -X directions and don't anything happening; everything appears working fine in the AXIS preview.

Starting LinuxCNC...
Found file(REL): ./G2_LinuxCNC.hal
Note: Using POSIX realtime
hm2: loading Mesa HostMot2 driver version 0.15
hm2_pci: loading Mesa AnyIO HostMot2 driver version 0.7
hm2_pci: discovered 5i20 at 0000:07:01.0
hm2/hm2_5i20.0: 72 I/O Pins used:
hm2/hm2_5i20.0: IO Pin 000 (P2-01): IOPort
...
hm2/hm2_5i20.0: IO Pin 023 (P2-47): IOPort
hm2/hm2_5i20.0: IO Pin 024 (P3-01): StepGen #0, pin Step (Output)
hm2/hm2_5i20.0: IO Pin 025 (P3-03): StepGen #0, pin Direction (Output)
hm2/hm2_5i20.0: IO Pin 026 (P3-05): IOPort
...

Thanks a lot for your help.

Some progress. I was using the top of the terminal screw to measure the direction pin. Well, if the terminal screw is not screwed all the way up tightly, it is not a good connection. This was a brand new board, and all the terminal screws were opened all the way up. My fault. Now I just need to get the step pin to work.

Can you post your hal and ini files?

Got it working! Same issue. Not to happy with myself that I spend hours troubleshooting and overlooked the obvious. Thanks for the help!

PCW, I already posted the files. When I am finally sure I have everything working I will post them again.

Ahh yes, rising clamp terminal blocks have no ( guaranteed) connection between the
screw and the board unless the clamp is tight