Question

Circuit : Custom up/down counter

P3.    Count Sequence

         Generate a random sequence of 8 distinct numbers between 0 and 7.

         Start at any number, and not “in order”,13576420

         Document your count sequence in the Lab Notebook.

P4.    State Diagram

         Create an FSM state diagram to cycle through your count sequence.

         Implement forward and backward counting, based on X (1 = forward, 0 = backward).

         Include a diagram. Create it with software or very neatly draw and scan.

P5.          D flip-flop design (review for final)

         Determine the state table. Recognize that the Aldec Wizard will use regular binary encoding.

         Determine equations for flip flop inputs and circuit outputs.

Please write FSM, state table and equations for FF input and circuit outputs.

Answer 1

the state table and state graph is shown below:

k maps and next state equations:

d0

for D1:

for D2

the output of the circuits is Z2=A

Z1=B

Z0=C