Mesa 7i92 with PC-2-Route Model M2 BOB

Hello,
I'm helping my son retrofit an older mini mill that had mach3 using  PC-2-Route Model M2 BOB which I believe dates back to the mach 2/3 days. Doesn't seem to be any current information on them. We currently have  a mesa 7i92 communicating to a small pc with mesaflash working. Looking through the bit files that come with the 7i92 download, I was not able to find a compatible file. If I understand correctly, in order the change the function of a pin, you need a custom bit file to flash the board. Pinout of the parallel port follows.
Thanks
Maynard

J2 Parallel Port Pinout
Pin1 Out1
Pin 2 X Step
Pin 3 Y Step
Pin 4 Z Step
Pin 5 A Step
Pin 6 X dir
Pin 7 Y dir
Pin 8 Z dir
Pin 9 A dir
Pin 10 ESTOP
Pin 11 X Home
Pin 13 Z Home
Pin 12 Y Home
Pin 14 Out2
Pin 15 A Home
Pin 16 Out3
Pin 17 Out4 charge-pump pin
Pin 18 26 PC Ground
 

Thats a fairly odd pinout.
I can try making a matching bitfile some time this week

Thank you PCW, that would be very much appreciated.

We switched over to a c10 bob, so we won't need the custom bit file.
Thanks for offering

PCW wrote:

Thats a fairly odd pinout.
I can try making a matching bitfile some time this week

That was the usual Soundlogic pinout, M2 & Combo , for most of them .
Odd but they were well build bob .
 I plan to reuse a combo + an encoder from the same guy, + 7i92h , 
a bit file would sure help...
or i 'll use 5Abobx2.bit and , hmmm , and swap cables , because , you do got all my respect , you FPGA and ARM coders, 
or C coders ,python , well , all of you , i bow  to you.
  Could it help other having those olds bob , pdf for them here;
encoder

combo

I call it combo , it's the pdf name , look like it's a PC-2-Route All In One Model M2 OEM

Having hope here ,
+ fun refreshing my linuxcnc 2.9 pre stable test a few years ago.
Using roya rt preempt kernel on orange pi 5 on trixie .
Thanks all for linuxcnc ,+++.

I'm probably the single user of the puppy linux/rtpreempt userspace + the 7years old DebianDog-Jwm-3.4-9-rtai ....
and still using them..

This should be close: