Re:5i20 + 7i52s + 7i37TA -> change the IO Pins

Probably (which may be OK if you transition to hand editing the HAL files)

you may be able to just set the GPIO 000 and 023 pins to outputs in pncconf
(since the default output value would be low)

Hello everybody,

I use exactly the same hardware (Mesa 5i20+7i52) as Peter. Unfortunately I can not find the right file for my project.
For my cnc-lathing machine I need 3-Encoder, 3-Step/Dir, 2-PWM/Dir and 2-Sserial (1x7i73, 1xreserve)
When trying to create your own file I failed. After this tutorial it did not work.
wiki.linuxcnc.org/cgi-bin/wiki.pl?Editin...SA_Bitfiles_Spartan2
Missing files and error messages are syntax check. Unfortunately, I am not a programmer and can not correct these errors. That is why I am dependent on your help.

A 7I52 will give you 6 encoder and 6 sserial channels,
You would need another daughter card for the stepgen and PWM/DIr outputs

I have however this combination already with this firmware used.
.
.(loadrt hm2_pci config="firmware=hm2/5i20/SVST2_4_7I47.BIT num_encoders=3 num_pwmgens=1 num_stepgens=3")
.
Actually I only need the additional Sserial for 7i73. According to this manual on page 10, this should be possible.
Unfortunately, not with this firmware.

Which daughtercards do you have?

A 7I52 has 6 encoders and 6 sserial interfaces
A 7I52S has 6 encoders and 6 STEP/DIR or PWM/DIR output pairs
Neither has the combination of step/dir and sserial that you need

I have only 7i52, not the one with the "s" at the end. ( I believe to understand where the problem is.
I have only 6 TX ports and each step/dir (or pwm/dir) requires 2 of them. With 2x step/dir and 1x pwm/dir I have no more port for Sserial free.

PS: Can change by the IC the 7i52 to the 7i52s? I have the necessary equipment for this.