MESA 7I92 programming

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29 Oct 2025 20:39 #337408 by PCW
Replied by PCW on topic MESA 7I92 programming
You would need to specify which pins are:

step0/dir0 step1/dir1 etc encoder a,b,z PWM

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29 Oct 2025 21:07 #337412 by TJ
Replied by TJ on topic MESA 7I92 programming
1 port: IDC26 NORMAL LPT. PORT.
1 X DIR
2 X STEP
3 Y DIR
4 Y STEP
5 Z DIR
6 Z STEP
7 A DIR
8 A STEP
9 B DIR
14 B STEP
17 PWM


2 PORT: IDC BIDIRECTIONAL LPT. PORT.
11 Encoder A
12 Encoder B
13 Encoder Z
17 Charge Pump 10 KHz. max 16Khz.
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29 Oct 2025 22:02 #337415 by tommylight
Replied by tommylight on topic MESA 7I92 programming
1 whatever
2 X DIR
3 X STEP
4 Y DIR
5 Y STEP
6 Z DIR
7 Z STEP
8 A DIR
9 A STEP
14 B DIR
16 B STEP
17 PWM
Would have been much better as 4 axis would be standard pins.

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29 Oct 2025 23:05 #337421 by PCW
Replied by PCW on topic MESA 7I92 programming
This should be close assuming your pin numbers are DB25 parallel port numbers

 

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30 Oct 2025 07:03 #337443 by TJ
Replied by TJ on topic MESA 7I92 programming
20 years ago I tried Linux CNC once, but I gave up due to language barriers and the European purchase restrictions of the cards.
I have built quite a few CNC machines in the past 40 years in systems running under Win.
Today's language translation programs can be an incredible help.
Clone cards are now available at a reasonable price, so I thought I would try the Linux world again.
The helpfulness that the Linux forum provides is amazing.
A special shout out to PCW for his help and expertise that he shares.
I am an electrical engineer and I can create an electrical circuit diagram in minutes. My limitations when it comes to PC programming are huge. I have been trying Linux for 2 weeks. I still have a lot of questions. Today I will upload the unique configuration I received from PCW to the 7I92 card.

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30 Oct 2025 08:12 #337447 by unknown
Replied by unknown on topic MESA 7I92 programming
I'm civil/builder/construction labourer, using the page I linked to I was able to create Mesa bitfiles (then some custom ones for a clone board I made).

What it comes down to is being able to follow instructions.
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