Summagraphics Bit Pad One GPIB protocol documentation?

Josh Dersch derschjo at
Thu Nov 26 01:36:11 CST 2009

I'm working on supporting GPIB tablet support for PERQemu (right now it 
only supports the 3-button Kriz tablet).  Anyone have documentation for 
the protocol used by the GPIB variant of the Summagraphics Bit Pad One?

I've found documentation covering the Bit Pad Two 
( , which 
appears to be RS-232 only.  I'm sure the protocols are similar, anyone 
know for sure?


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