MiniMig with AGA

[psxphill]

From the joysticks I've dismantled in my time autofire simply closed the joy button circuit... No special electronics at all.

Autofire generally uses a 555 timer. I'm not sure what joysticks you've taken apart, but they don't sound great. Unless the auto fire toggles on and off then it isn't auto fire & you can't do that with just a switch.
 
555's work best with higher voltages, so it might get upset with 3.3v
If might work, you'll have to test it.

[psxphill]

We do not need joysticks with autofire anymore.
A variable speed autofire can be integrated in the Minimig core.
 
Regards,
 
Frederic

What about megadrive & cd32 pads? Do they cope?

[psxphill]

Megadrive pads would go under, but CD32 pads have enough Commodore force in them to barely make it..
Looking here: http://www.softwolves.com/arkiv/cbm-hackers/1/1696.html
MegaDrive works the same as C= joysticks, however maybe with a different pinout. So it should work. And CD32 well.. it's Commodore stuff. So should work too.
 
Please read up on basic electronics before asking.

They all specify 5v, it was a 3.3v vs 5v question.

[psxphill]

It will deliver the trashed signal with less degredation than a bad cable will.
 
Read up on entropy.

It's not that bad, pure digital signals can take some degredation. Especially at reasonably short lengths.
 
However the solution would be to replace the dvi-d connector on the board with an hdmi connector.