28 Aug
2002
28 Aug
'02
3:14 p.m.
--- "Fred Cisin (XenoSoft)" <cisin(a)xenosoft.com> wrote:
> > The idea is this - a PS/2-keyboard to RS-232
converter - plug in
> > any AT- style keyboard, hook the other end into the receive pin of
> > thE target's console port. I started from a) a microprocessor-based
The cheapest way to build that, if you don't mind
the extra bulk, ...
Take one generic AT, plus keyboard, plus serial port.
Write code in a polled loop, or interrupt driven, to get keystrokes and
send them out the serial port. (there is some software already available
that includes that capability (such as PC-Talk)
If I did it by replacing the BIOS ROM, I'd consider it. The bulk is
more than I really want to deal with (not that it would dwarf a PDP-8/e
or PDP-8/a, but it wouldn't be a portable solution.
It's true - the lowest effort solution is to take a junk PC and let it
do all the work. Not very small and not very power efficient.
-ethan
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