Difference between revisions of "CSC270 Lab 5 2016"

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=Minimal and Controllable Moore FSM=
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Implement this FMS shown below and observe its behavior.  It uses half of a 74LS74 D Flip-flop.  Generate the timing diagram for it.  Include the timing diagram in your report, as well as its state diagram.
 
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* Wire up a circuit that implements this FSM.  Demonstrate its correct behavior to your instructor.
 
* Wire up a circuit that implements this FSM.  Demonstrate its correct behavior to your instructor.
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* This part is '''optional''', and has to be done only if you have time.
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* Implement this FMS shown below and observe its behavior.  The Cmd signal should be connected to a switch.  The Q output should be connected to an LED.  The flip-flop shown is half of a 74LS74 integrated circuit. 
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* Generate the sequencer's timing diagram from your observation of its behavior.
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* Generate the state diagram of the sequencer.
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[[Category:CSC270]][[Category:Lab]]
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[[Category:CSC270]][[Category:Labs]]

Latest revision as of 14:13, 25 February 2016

--D. Thiebaut (talk) 18:12, 24 February 2016 (EST)



This lab presents Finite State Machines (FSM) and will you have explore a couple Moore machines.




Finite State Machine


Word problem
Implement a sequencer (FSM) which controls 3 lights: a green light, a yellow light, and a red light. The lights operate in a cycle, as follows:
  1. Green is ON for 1 second, and turns OFF. Then
  2. Yellow is ON for 1 second, then turns OFF. Then
  3. Red is ON for 2 seconds, and stays ON. Then
  4. Yellow turns ON for 1 second, and after that both Red and Yellow turn OFF.


Part 1


  • Generate the timing diagram, and the state diagram.
  • Find the number of flip-flops required to implement the FSM.
  • Find the boolean functions that will generate the D inputs to the flip-flops, and the R, G, and Y outputs.


Part 2


  • Verify that your design is correct by coding your equations in a Python simulator.


Part 3


  • Wire up a circuit that implements this FSM. Demonstrate its correct behavior to your instructor.