21 Jan
2004
21 Jan
'04
11:57 a.m.
Tony and the gang - I just spotted this thread:
> Does this mean there might be a small market for a
PS/2 to parallel
> keyboard converter? I can envision two modes, output only, where ASCII
That was my first thought -- a PC keyboard + a
microcontroller. Shouldn't
be too hard to write the firmware....
Of course, not being the business type, I would
probably have GPLed it,
not tried to sell it ;-)
-tony
fwiw I did that a few years ago, using an 87C750 (almost a classic itself by
now) and a hacked up version of Phillips AN434 "Connecting a PC keyboard to
the I2C bus". Photos here
http://www.widomaker.com/~cswiger/dscn1468s.jpg
http://www.widomaker.com/~cswiger/dscn1472s.jpg
it works for me. In the blurry photo, the leftmost bit is the keypress strobe,
goes off when a key is pressed; and a c/r was hit before the photo. If someone
needs one I can (maybe) burn an OTP chip but you'll have to build the circuit.
Modified firmware free. Has shift, lock and ctrl, etc.
--Chuck
