• Introduction
• High Level Design
• Program/Hardware Design
• Results
• Conclusions
• Appendix: Code
• Appendix: Schematics
• Appendix: Cost
• Appendix: Misc

James Yu
jjy7@cornell.edu

Jared Clifton
jcc72@cornell.edu

Introduction

Our project was to build a system that allows a user to interface with a paint program using a mouse and viewing the results on a TV.

We implemented a PS/2 interface to talk to the mouse, and also implemented an NTSC interface to be able to generate TV signals. We used two MCU's: one to interface with the mouse, and the other to run the painting program and output to the television. This was done since NTSC has a very strict timing that forced us to separate the mouse interface from the video interface.

The painting program is very basic and includes some of the ubiquitous tools expected in a paint program, including free drawing mode, circles, squares, and erasing.

Features

• Mouse input and TV output.
• 125x70 pixel drawing area
• Tools: free-drawing, eraser, line, circle, rectangle, clear screen, cut/copy and paste, spray tool, polygon
• 5 brush sizes