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EGR 3331 Digital Design P3

# EGR 3331 Digital Design P3 - 1 00 01 1 1 11 10 1 1 The...

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EGR 3331 Phase 3: System Design Team members: Berrada Asmae El Marchoum Nissrine Mouatadid Soukayna Truth Table : In case the Motor is stationary we don’t care about whether it’s moving upward or downward so we use Don’t cares in these cases. Equivalently the cases we will treat are the ones in which the elevator is actually moving , i.e those in which Motor in the truth table is 1:

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Karnaugh Map : 1) K-map for the Motor’s motion : Let’s put: A: DS B: SF S S L1/Do wn L2/ U p Moto r Motor Direction (Up/down) 0 0 0 0 0 0 X 1 0 0 0 1 1 1 2 0 0 1 0 0 X 3 0 0 1 1 0 X 4 0 1 0 0 0 X 5 0 1 0 1 0 X 6 0 1 1 0 1 1 7 0 1 1 1 0 X 8 1 0 0 0 0 X 9 1 0 0 1 0 X 1 0 1 0 1 0 1 0 1 1 1 0 1 1 0 X 1 2 1 1 0 0 0 X 1 3 1 1 0 1 1 0 1 4 1 1 1 0 0 X 1 5 1 1 1 1 0 X
C: L1/Down D: L2/Up A B CD 0 0 0 1 1 1

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Unformatted text preview: 1 00 01 1 1 11 10 1 1 The expression that represents the Motor’s motion is given by a Sum of Products that we get by grouping the 1’s of the K-Map above: F = A’B’C’D + A’BCD’+ ABC’D+ AB’CD’ 1) K-map for the Elevator’s direction : Let’s put: A: SF. B: Motor. A B 1 X X 1 1 The expression for the Elevator’s direction is: E = A’...
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EGR 3331 Digital Design P3 - 1 00 01 1 1 11 10 1 1 The...

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