[vcf-midatlantic] jade z80 cpu card
systems.glitch at gmail.com
Tue Sep 26 13:09:08 EDT 2017
I've had two or three of their Big Z Z80 CPU boards pass through my shop,
they're fine boards, pretty reliable, onboard console UART, boot ROM, etc.
I'd say it's worth having. I believe it also provides Phi1 (phase 1) clock
which is not always available with Z80 boards -- helps with compatibility
with older boards designed for 8080 systems.
On Tue, Sep 26, 2017 at 1:05 PM, william degnan via vcf-midatlantic <
vcf-midatlantic at lists.vintagecomputerfederation.org> wrote:
> Quick show of hands....anyone have a working Jade Z80 CPU card that they
> use? Are these nice worth working to restore? I got one that came with a
> California Computer Systems S-100 computer. 8 years ago I tested it with
> an in-circuit emulator that seemed to indicate it was at least able to
> initiaize but I have not gotten it to talk nicely to an I/O card, garbles
> characters. I dropped the project to move onto something else. Thinking
> of returning to it to see if I could make more progress.
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