4 bit down counter with D flip flop

Discussion in 'Digital Circuit Design' started by Ozan Sezgen, Jan 3, 2018.

  1. Ozan Sezgen

    Thread Starter New Member

    Jan 3, 2018
    1
    0
    Hi,
    I want to make 4 bit down counter with D Flip flop and when reach 0000, it is stop but ı can’t. My sistem is again 1111 after 0000, and repetated.
    Help me
     
  2. AnalogKid

    AAC Fanatic!

    Aug 1, 2013
    7,012
    1,986
    No.

    You help me first. It says "circuits" right in the URL. What do you think that means?

    ak
     
  3. WBahn

    Moderator

    Mar 31, 2012
    22,884
    6,838
    Having a bit of trouble with your English. Do you mean that you constructed it and it DOES stop at 0000 but you WANT it to roll back to 1111? Or do you mean that it DOES roll back to 1111 and you WANT it to stop at 0000?

    Since you haven't given us the schematic of how you connected these counters, there is no way (short of a crystal ball) for us to figure out why it is doing what it is doing.
     
  4. dl324

    AAC Fanatic!

    Mar 30, 2015
    6,983
    1,611
    Welcome to AAC!
    Is this homework?

    Help us to help you by posting a schematic so we can see how you're trying to stop the counter when it gets to 0000.
     
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