cr1901
commented
8 months ago This is incredibly interesting! Thank you for your effort in preserving the disks. This is a useful addition to the project, even just as an anecdote/epilogue after the fact. Even if your disk tells you all the information I RE'd from this card, certainly I don't regret REing the card at this point:
- Good learning experience
- I had fun doing it
- It was useful to someone besides me :D
I'll keep this issue open until I can figure out how to incorporate your experiences/software into the project (maybe a blog post or something).
I have a ATD Model 119, and your project came up.
Where did you hear about it? Just a Google search or similar, or word-of-mouth?
brainrecall
Hello, I wasn't sure how best to let you know this, feel free to close this issue.
I was attempting to restore my Xerox 6060 (multiple hardware issues that I have had little luck in fixing), and I was looking to find more information on the memory expansion card that came with it. I have a ATD Model 119, and your project came up. The 119 is luckily very similar to your 117, except I think the 119 has an optional clock/calendar chip that uses a Dallas-like chip (mine was unpopulated). I'm blown away by the work you did in reverse-engineering your board, well done!
I discovered I have a copy of a utilities disk that came with my card. It doesn't appear to have anything specific to my model, with the exception of extra utilities for the clock chip. I suspect they produced many models that are nearly identical. I've uploaded the disk image and an extract of the files to the Internet Archive: https://archive.org/details/atd_20231114
Included on that disk is an interactive guide on how to populate and configure the card. I used PCjs to check it out (https://www.pcjs.org/machines/pcx86/att/6300/cga/)
I'd thought I'd let you know, hopefully you find it useful.