Lab 6 - Introduction This lab builds on the previous lab....

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Introduction This lab builds on the previous lab. This time we use the 7-segment display instead of the LEDs. The idea is to make a walking display that shows a message. In order to do this, we have to create a state of the display in memory, refresh each digit 40 times per second, and each second (or 40 refreshes) we shift the display to the left and add on the next digit. Once the entire message has been displayed, it is supposed to loop and display it again. The main ideas shown in this lab are refreshing a multiplexed display and performing subroutines that call other subroutines. We develop several interesting new ways of thinking. Equipment • 68HC12 evaluation board • MiniIDE and its respective requirements Procedure 1. Create a table of 7-segment character representations as stated in the lab. 2. Create the sequence of characters you want to be displayed. 3. Zero out all four memory locations for the characters. 4.
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This lab report was uploaded on 04/11/2008 for the course ECE 2325 taught by Professor Fernandorios-guiterrez during the Fall '06 term at University of Minnesota Duluth.

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Lab 6 - Introduction This lab builds on the previous lab....

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