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
Received on Wed Jan 21 2004 - 11:57:53 GMT
