System Description (Mc)

Using C code on Code Warrior we programmed the micro controller to run a constant loop of our rolling display program. The code loops through each row before shifting over. It shifts through the rows by sending signals to the select input pins of the decoder. The program is able to rapidly loop through rows this way. The microcontroller sends a 24 bit array to the serial input of the first shift register. The E port is used as the clock for the register by turning the bit high and low repeatedly.

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