8 Jul
2005
8 Jul
'05
3:51 p.m.
Actually, I'd not heard of the blue-cased machines
before. Maybe they're
in standard off-the-shelf instrument cases rather than with RML logos,
panel cut-outs etc.?
The black case is a standard (Vero iIRC) case. It was designed to take a
19" rack chassis, but RML just mounted the PSU and card guides inside.
OK, the cutouts and logos are custom, but that's all.
Oh, Xebec board in my fileserver is an S1410, for
which I have a manual
and a couple of spare boards, so I can do some messing around with a PC
parallel port driver. There's even a sample Z80 interface schematic in
the back of the manual that's probably adaptable...
Still concerned about timings though as some of the timing diagrams do
have upper constraints on signal changes (a lot of them only specify a
minimum limit). Time will tell if the PC's port is quick enough...
I think (wihtout trying it), you can go as slowly as you like.
-tony