TrackPoint Circuit Design Instructions

Hints on TrackPoint system circuit layout to avoid analog noise problems (14 May, 1998).
DOS programs used for testing circuit designs: potmap.exe and potfind.exe.
DOS program for testing TrackPoint system operation Joytest.html.
Instructions for building a simulated TrackPoint sensor for use in circuit design and testing.
Instructions for choosing resistor values in TrackPoint circuit for a particular type of sensor (25 August, 1998).
Sample circuit diagrams for TPM754 (Note: each implementation will require customization of circuit resistor values.):

PS2 TPM754 (TrackPoint Microcontroller) Schematic 754REF.pdf.
Serial TPM754 (TrackPoint Microcontroller) Schematic SER754.pdf.

If you need a PDF file viewer, you can get the free Adobe Acrobat Reader from Adobe.

For more information, please contact:
Barton Smith
IBM Almaden Research Center
650 Harry Road
San Jose, CA 95120-6099
voice (408) 927-1606
fax (408) 927-4140
e-mail: trackpoint@almaden.ibm.com

Last updated: 16 April 2002

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