11 Mar
2013
11 Mar
'13
2:30 p.m.
Thanks for that Alison.
Doug
I did it in my M100, used a 62256 and external decode
on a piggyback board.
There was enough room if sockets were not used. It used the open sockets
for the IOand mechanical support. Its a fairly simple thing to do.
I believe someone else did it and documented theirs on the Club100 site.
I later modded mine for 64K ram and phantom rom. The default is the M100
rom,
the alternate loads CP/M into ram and boots it. disk is a old 16meg CF
tucked in
there. This is not so trivial as the drivers for the keyboard and display
are
a PITA. Initial work was done using the serial port as a console and
running
debug code for the keyboard and display.
Allison
--
Doug Jackson
VK1ZDJ
http://www.dougswordclock.com/ -< My clocks
http://www.vk1zdj.net -< My Amature Radio Activities