Overview

The purpose gain experience with loops, output, subroutines and making use of program memory for data.

Problem Statement

In this lab, you will design, code, assemble, simulate, download and run a program. The program will configure the LEDs to display four different levels of brightness. Two of the brightness levels are on and off. The other two brightness levels will be achieved by quickly toggling the LEDs on and off. The higher the percentage of time that the light is on, the brighter it will appear.

Program Notes:

You must make use of at least one subroutine.
You must store the parameters that determine the intermediate brightness levels in program memory.

Just for Fun

Once the requirements for the assignment have been met, you may wish to add additional features to your program. Some ideas:

Use the switches to adjust the brightness levels while the program is running.
Make the LEDs bounce (similar to lab 2) while retaining the multiple brightness levels.
Whatever you think up.

Pre-laboratory activity (due on entering the week 5 lab)

Your program should be written prior to lab. On entering the room, submit a printout of your .lst.

Laboratory Demonstration (due 5pm Thursday of week 5)

You must demonstrate your program working on your board and use the oscilloscope to show that your delay loop duration is accurate.

Laboratory Report (due 11pm Thursday of week 5)

You should submit the .asm file for your program using the online submission form.

Add .nolist before and .list after the .include "m32def.inc" in your .asm file
The beginning of your source file should contain:
- Your name
- Submission date
- Program name
- "Lab 4"
- A brief (couple sentences) description of something interesting you discovered while working on this assignment

In addtion, you must log the time you spent on this assignment (including the pre-laboratory activity) in FAST.

Acknowledgment

This assignment was developed by Dr. Chris Taylor.

I am responsible for all content posted on these pages; MSOE is welcome to share these opinions but may not want to.

Office: L-343

Phone: 277-7339