Laboratory 6 Rev Keypad Decode and Seven Seg Display

Laboratory 6 Rev Keypad Decode and Seven Seg Display -...

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1 Applied Electronics Laboratory Laboratory 6 Microprocessor Basic IO Purpose : This lab. will demonstrates basic input and output interfacing with a microprocessor. This lab. will use the Amtel AT90SA518-8PC microprocessor chip in conjunction with the STK500 Development board. Hardware and software will be developed to interrogate and de- bounce a simple 9 pin numeric keypad and output the last two digits entered to a seven-segment display. Materials : STK500Development Board with interconnecting cables. breadboard, keypad, 2 seven-segment displays, 2 seven-segment decoder/drivers, oscilloscope, power supply (P 15 volts), resistors, .01 PF capacitors. Hardware: Keypad wiring: Connect the keypad to the microprocessor as shown. You will need 4 output and 3 input lines, but you do not have to use the pins shown here. The output lines will also be used to ‘strobe’ the seven segment decoders to display the numeric output. Seven-segment display wiring:
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This lab report was uploaded on 04/03/2008 for the course BIOMEDICAL 418 taught by Professor Semmlow during the Spring '08 term at Rutgers.

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Laboratory 6 Rev Keypad Decode and Seven Seg Display -...

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