CP/M 2.2 on z80

For fun (and profit!) I am going to build this:
http://searle.hostei.com/grant/cpm/

Update 9/22/2018: This project is now a wonderful success,
but all the files are over at Grex.org right now!

Update 9/26/2017: This project got pretty far, but I tracked
it mostly over at my grex gopher hole. I assembled the whole
thing but it did not work for me (I don't blame the design,
but my inexperience,) so I did a lot of testing. Purchased a
cheap oscilloscope, tested various ICs, reprogrammed the ROM
just to be sure, etc. I think, possibly, the MAX232 chip I
have is bad, waiting on a TTL usb cable to test with, which
would let me bypass the MAX232.

In any case, I've also decided to build the 6502 system that
Grant designed, which is a lot simpler, to make sure I can
get that working. Then I'll probably rebuild the z80 and
try again.


Update 8/15/17: I've finally purchased all of the ICs that
I need, only a few more parts to go before I can get started
putting it all together

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