MOD-13 counter

Discussion in 'Homework Help' started by tunexy2001ng, May 26, 2014.

  1. tunexy2001ng

    Thread Starter New Member

    May 26, 2014
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    Evening guys... Pls i need your help on this assignment. (1) Using any simulation tool of your choice, design a MOD-13 counter using commercial J-K flip flop. The output should be monitored with four LED'S as well as 7-segment display
     
  2. WBahn

    Moderator

    Mar 31, 2012
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    There's nothing for us to help with until you show YOUR efforts to work YOUR assignment.
     
  3. JoeJester

    AAC Fanatic!

    Apr 26, 2005
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    Can you sketch out a functional block diagram?
     
  4. tunexy2001ng

    Thread Starter New Member

    May 26, 2014
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    attached within is WHAT i have tried to do. Pls help
     
  5. shteii01

    AAC Fanatic!

    Feb 19, 2010
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  6. JoeJester

    AAC Fanatic!

    Apr 26, 2005
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    Ok, you have a four bit counter.

    Can you name the functions you will need to complete this task?
     
  7. WBahn

    Moderator

    Mar 31, 2012
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    I would not recommend using that topology. The problem is that it uses gated clocks. As soon as you add any additional logic you are likely to produce glitches on your clock lines and get unpredictable behavior. Better to stick to a fully synchronous design in which all clock inputs are driven from a single free running clock signal.
     
    absf likes this.
  8. tshuck

    Well-Known Member

    Oct 18, 2012
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    I will second the call for a synchronous design.

    This thread details a design approach for a Mod-3 and a Mod-10 counter - extending it to a Mod-13 counter is not difficult, is a matter of filling out your state table accordingly and following the same steps as explained.
     
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  9. Jayaraj kenche

    New Member

    Oct 4, 2014
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    what is your requirement.?
    Counters are of two types.
    1.synchronous
    2. Asynchronous

    in the above thread , the circuit u have considered was asynchronous counter
     
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