appiah4 wrote on 2020-05-13, 11:18: Note: I hope TubeTimeUS doesn't mind me sharing any of this but please let me know if it is a problem. No problem!

He is pretty active on twitter. Otherwise, here is website: http://www.sonic.net/~schlae/index.html I'm also here on Vogons but I don't check it as often as Twitter. Yeah the ferrites aren't critical for functionality at all, they were mainly so Creative Labs could pass their FCC tests. They …

I will attempt contacting TubeTime indeed :) I just don't know how.. He is pretty active on twitter. Otherwise, here is website: http://www.sonic.net/~schlae/index.html I'm also here on Vogons but I don't check it as often as Twitter. Yeah the ferrites aren't critical for functionality at all, they …

matze79 wrote on 2020-03-28, 21:07: Does it work in 55SX ? 😀 It should but nobody has tested it yet.

That's excellent news! Today I had success using the card with the PS/2 Model 95 (Type-2 CPU complex with a 486DX2-50).

The Plaid Bib (CPLD edition) has been tested and works fine on a PS/2 Model 85 (486SX). This is a great positive sign; there's a good chance it'll also work on other fast MCA machines!

The long wait is over! I have a working sound card using a CPLD instead of the P82C611. It works in my PS/2 Model 50Z and it seems partially functional in the Model 95 I borrowed (the card ID gets read successfully by the BIOS but the machine can't boot due to issues with the floppy controller.) …

Since I have a running CPLD implementation, I figured there's no reason not to release the existing P82C611 version! Twitter announcement here: https://twitter.com/TubeTimeUS/status/1205968405309689856 Git repo here: https://github.com/schlae/plaid-bib Happy holidays everyone!

Today I finished building and testing a version of my MCA Adlib clone that uses an off-the-shelf CPLD instead of the hard-to-find 82C611. ( https://twitter.com/TubeTimeUS/status/1197326314979512320 ) I've implemented a synchronous extended transfer cycle for read operations since the YM3812 requires …

Quick update--the card is basically working (see https://twitter.com/TubeTimeUS/status/1173758579020402689 ) but there appears to be some sort of setup conflict with the hard drive that makes me run the setup disk every cold boot. Once I figure this out, I'll need to make a decision. One thing I …

And the PAL chip dose not seem to have any lock bits or security, so should be easy to copy the code from it :) Really we don't even need that. It's just an address decoder and a tiny bit of glue logic which I was able to reverse engineer from understanding how the card is supposed to work. :happy:

Hey folks, just a quick post to chat about what I've been working on ( https://twitter.com/TubeTimeUS/status/1162557495841189888 ). Yes, that's an Ad Lib MCA card based on photos that elianda/enigma provided. Here is the current status... I have a design that I'm about 90% sure matches the original. …