3MB & 4MB PCBs (or easier to rewire smaller?)
Hello all! I'm sitting at my desk, hard at work (otherwise known as playing), making some great repros for my collection. I'm now at the point of attempting a 32x game (Blackthorne), and have compared the pin outs of larger Genesis games with that of a few 32x games that I have lying around. Here is a 32x game (Star Wars Arcade, for the curious):
http://tapatalk.imageshack.com/v2/14...eeeb4745ce.jpg
And here is a 3MB genesis cart:
http://tapatalk.imageshack.com/v2/14...98288df7a9.jpg
The Genesis cart has a chip between the two ROMs that appears to be for bank switching between the two chips. The 32x board does not have this, which makes me believe it possibly does internal bank switching? Has anyone soldered dual type boards to make a working repro? Or, should I just use single chip boards and rewire A18-A20?
Oh, and the 32x reproduction is purely experimental at this point. If it uses internal bank switching, I'll have to figure out how that works, otherwise, the pin outs appear the same as standard Genesis.
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