Z80 Emulator...in a matchbox (6809 as well, apparently)


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Mixtel90

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Joined: 05/10/2019
Location: United Kingdom
Posts: 3141
Posted: 07:01pm 24 Sep 2022      

Erm.... the decorating (and several other things) got put to one side a bit...
He said, guiltily.



48mm x 50mm using a standard Pico and no SMD parts (it's the usual uSD module with its own pullups and supply decoupling capacitor that I've used previously). The GPIO header is identical.

Slight changes:
Power is via VSYS rather than VBUS if powered from a serial port. GP22 is via a "buttons enable" link rather than hard wired on the pcb.

EDIT:
Decided it was a little plump, so some slimming exercises have brought it down to a lithe 43mm x 50mm.
Edited 2022-09-25 07:55 by Mixtel90