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IC: Open Sega/Taito Brook UFB I/O Clone

notsonic

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For as long as I was aware of it, the Arthrimus Vewlix Console I/O has been out of stock. I do not own one and have never used one. All I know about it is what I've seen by looking at the picture. I don't even know what the components on it do.

To replicate the base functionality, I hand made something on bread board with commodity components. https://www.arcade-projects.com/thr...iation-owners-thread.8709/page-78#post-310366

Since then I had started laying out a PCB (using a Sega harness instead to avoid making it a total clone), but since it feels like a pretty gray area to clone something, I never finished it.

I'm willing to plow ahead if everyone thinks it's cool.

If it's cool, then I have the following design ideas to resolve.
1. Should it be Sega and Taito compatible, or have two separate versions? Separate versions means it's more straightforward to mount in stock locations, but all in one means it's all in one.
2. Does it NEED any functionality beyond simple wires? I'm not prepared to learn how to implement things like software button remapping but I'd entertain a jumper wire based solution.
3. Speaking of button mapping, I'd like to nail down a specific mapping. I think I've more or less mimiced the layout of a hori rap 4, but there's still some questionable stuff like coin, service, test, etc.
4. Does it NEED things like 5v/12v pass through connectors for Vewlix card readers and such? Do those circuits require any passive components?
5. Are additional headers required for connecting up misc buttons? All that stuff is already there on the Brook board but its arguably less convenient.

I intend to release the cad files with no strings attached again on the condition everyone thinks its cool.

The current board size and layout is relatively arbitrary. I didn't bother to take measurements since it was just a proof of concept.
Screenshot 2023-01-26 162618.png Screenshot 2023-01-26 162640.png PXL_20230126_214422150s.jpg
 
Speaking for self, a separate version would be ideal, and with headers for extra buttons like P1 and P2 B7 and B8 to make it a truly all in one solution for switching CPs. I wouldn't need button mapping besides what's on the Hori, considering that the Vewlix already has service and test buttons on the coin box already.
 
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