linuxcnc

Hello,
I am very new to Linuxcnc and I am trying to set up a 4 axis cnc polisher. The boards I am using are Mesa 5i25 with 7i76 (for my stepper motors) and 7i77 (for my servo motor). I have been using the PnCConf Wizard to set up all the axis. My question is in regards to an encoder setup.

I have an AS5311 encoder that I want to link to the A axis.Separately on an Arduino, I checked to see that the circuit board I have works and can count the distance moved. Then I moved to integrate the AS5311 to the 7i76 board. I put W4, W5, and W6 onto the left hand side for single ended inputs. I have hooked up the A,B and index to assigned encoder pins TB3 pin 7, TB3 pin 10 and TB3 pin 13. When I move the encoder over the magnetic strip, I see changes on the multimeter over A and ground or B and ground but linuxcnc is not detecting a change. Then I used the command "dmesg > hm2.txt" (see attached) and I saw that IO pin 31-33 (P2-11, 12, and 13) are defined as IO Port and not as and encoder. Only IO pin 7-16 are assigned as encoders.

I made sure that I went to P2 tab (7i76) in the PnCConf Wizard to assign the A axis encoder . Am I misunderstanding the 7i76 manual or have I done the setup wrong? What can I change to make this encoder work?

Thank you for your answer! I saw another forum topic forum.linuxcnc.org/39-pncconf/21670-5i25...ml-files-for-pncconf by Cmorley. Cmorley mentioned that there is no firmware folder for the 5i25 and attached a zip file. I added that to the other mesa boards files with the .pin and .xml.

In the HAL file, I have: loadrt hm2_pci config="num_encoders=1 num_pwmgens=0 num_stepgens=5 sserial_port0=000x". I will try what you suggested tomorrow.
Thank you again!

If you use a 7I77 and a 7I76 together, the first step is that you need to flash the 5I25 card with the proper firmware,
there are 2 possible firmware choices: 5i25_7i77_7i76.bit and 5i25_7i76_7I77.bit
The 5i25_7i77_7i76.bit configuration expects a 7I77 on P3 (DB25) and a 7I76 on P2 (the header)
The 5i25_7i76_7i77.bin configuration expects a 7I76 on P3 (DB25) and a 7I77 on P2 (the header

OK I did not see the dmesg

Thats a 7I77_7I76 config so expects a 7I77 on P3 (the DB25) and a 7I76 on P2

also the 7I77 encoders are first (0 through 5) then encoder 6 is the 7I76 spindle encoder

Two weeks ago, I had the problem where I put the 7I77 and 7I76 on the wrong connector.

I did not realize that the first six encoders would be on the 7I77. That is something I have to be aware of.

On another note, how did you identify that I was using the 7I77_7I76 config? I am having trouble identifying what the problems are and it is slowing down my progress.

Everyone has been so helpful. Thank you for all the responses!