Hi all,
Long time lurker, first time poster.
I guessed as there are so many Z80 users here this would be a good
question to ask what I should do with the 100 Z80s I recently acquired.
They are 6MHz Toshiba CMOS Z80s in a 0.8mm SO package. My thoughts are
to make a small board with a Z80, a 64KB SRAM, CPLD, a USB enabled
ATMega and maybe an SD card or SPI flash. With some pins in the in
same layout as a DIP Z80..
The CPLD and ATMega would provide GPIO, UARTs (one over USB), glue
logic and the ability to load data into the SRAM via USB or from SD
Card/SPI flash. You could use it as a standalone Z80 system or plug it
into a Z80 system to tinker with. Maybe have hardware
breakpoints/watchpoints via the CPLD?
Would anyone here be interested in such a board? I have to produce at
least 10 PCBs as that's the minimum that places like seeedstudio will
produce. If anyone is interested I would order enough ATMega's for
everyone (I have almost everything else :)). If not I'll build up two
for myself and make a 98 core Z80 super computer.
Cheers,
Daniel
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