> There is a bit of a trick involved with what you're doing - the clock and
> data line at each end are driven with open collector outputs, if you want to
> use an IBM keyboard without the IBM, you will have to emulate the PC's
> keyboard controller.  You may want to verify this - its all a little fuzzy
> for me.  The emulation won't be too difficult, but will take a little
> checking into, it probably all boils down to just a couple of things.

The PC sets the Caps Lock LED (and the rest) on/off and also issues
initialization strings, and others. They are all listed in the IBM
technical reference. One does not really need them in simplier
applications. Actually, I can REALLY recommend the Philips
Microcontroller Application Notes -- one of them is a IBM keyboard to
I2C converter using a 8051. It has all the data you need, scan codes, controller
codes, alles... If you need copies of the IBM tech reference, or the
exact number of the Philips app note, e-mail me, and I'll try to organize someth
ing.

Just my 2 cents worth...

Richard