Bruce Bitner and Rob Tilton
Advisor: Dr. D. R. Schertz
A Motorola 68HC11 microcontroller was implemented for touch screen control
of an Alpine CD changer, for enhancement of the user interface in an automobile.
A TMS9118 video processor was used to display current status of the changer
(time, track and disc.), and a diode matrix touch screen is employed for
an input/output device. A special purpose 68HC11 system was built to perform
the control functions. This included interfacing with the CD changer via
the Alpine serial communications bus, updating the video graphics, and
responding to the touch screen input.
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