ECE482 Final Project Spring 03. Specification Design a digital thermometer to report the temperature...
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Transcript of ECE482 Final Project Spring 03. Specification Design a digital thermometer to report the temperature...
ECE482 Final ProjectSpring 03
SpecificationDesign a digital thermometer to report the temperature in the room in degrees Fahrenheit.
The PC should update the room temperature once each second.
A display as simple as the following is acceptable:
Present room temperature is 78 degrees Fahrenheit.
While you can have this message scrolling downward, it would be better if the message was updated in place.
Work in teams of 3 (your choosing).
You will demonstrate your project and give a brief oral presentation either before orafter the final exam on Mon May 5 (6:30 – 8:10 pm).
I would prefer that the presentations take place prior to the exam if possible.
Design of a Digital Thermometer
LM34 Thermometer IC
PC Extender Card
Buffering I/O Address Range 300H-31FH
Side View of Extender Card
Interface Trainer Decoding Circuitry
Connector and Cable
I/O Port Addresses Decoded by Trainer
PC Interface Trainer Module
PC Interface Trainer Connection
Simple Program to Test Port A
8255 PPI Chip Pinout
8255 Control Word
Example 4-5
Example 4-6
Writing a Character to the Screen
Writing a Character String to the Screen
Binary to Decimal to ASCII Conversion