25 Dec
2010
25 Dec
'10
12:11 p.m.
On 12/25/2010 1:52 PM, allison wrote:
I looked at that port, it's not Z80 compatible.
CP/M and all had to
be re-assembled
for the eZ80. Same would be required to run many of the apps and
utilities.
Well, that's a disappointment. It looked like such a time saver.
I've implemented CPm on Z80 with less than 16 pcs TTL, memory, EPROM
and CPU total and that was using
32K ram x2 (there are 64K parts!). The IDE, CF or SD interfaces can
be pretty trivial with SD and CF being
preferred as CF does do an 8bit mode, and SD is a serial interface
with only a few lines. That leaves the
more interesting IO, user console, and ports to run a printer or
communicate with maybe a PC. [note
one port with the right protocol can do all that if the host is
playing terminal, printer, storage].
Maybe I should just see if there is a schematic of a minimal Z80 system
(fewest ICs possible) and go from there.
Jim