CSE 140L Hardware Lab One
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Objective
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In this lab, you will learn to build gray-code encoder and decoder. You will also learn to build a 7-segment display encoder
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Part 1
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Construction of a Combinational Logic for the Gray-code ENCODER
abc wxy
000 000
001 001
010 011
011 010
100 110
101 111
110 101
111 100
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Build this encoder circuit and demonstrate the simulation to the TA.
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Part 2
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Construction of a Combinational Logic for the Gray-code DECODER
wxy efg
000 000
001 001
011 010
010 011
110 100
111 101
101 110
100 111
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Build this decoder circuit and demonstrate the simulation to the TA.
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Part 3
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Save the circuit from part 1 & part 2 as a component library (see tutorial). Then, create a circuit
connecting the output of the ENCODER to the input of the DECODER. Simulate the circuit
and your output of this circuit should be the same value as the input.
Build this decoder circuit and demonstrate the simulation to the TA.
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Part 4
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Given a number between 0 and 9 as input, output the 7-segment display code
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input/ output
wxyz abcdefg
---- -------------
0000 1111110
0001 0110000
0010 1101101
0011 1111001
0100 0110011
0101 1011011
0110 1011111
0111 1110000
1000 1111111
1001 1111011
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Build this 7-segment circuit and demonstrate the simulation to the TA.
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