Counting 60 to 0

Discussion in 'Homework Help' started by bubnjarko, Dec 3, 2011.

  1. bubnjarko

    Thread Starter New Member

    Nov 24, 2011
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    can someone tell me what do i have to change in first schematic to make it counts backwards from 60 to 0?
     
  2. Wendy

    Moderator

    Mar 24, 2008
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  3. Georacer

    Moderator

    Nov 25, 2009
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    That schematic you linked at was flawed, so it's not the best basis for our conversation.

    I suppose you want a decade mod 60 counter? That is, a counter that will display decimal numbers into two 7 segment displays. If so, let's start from the basics. Can you build a down counter that counts from 0 to 1 (0,9,8,7...)?

    If you can do so, the system is as simple as duplicating the unit and using the appearance of a 9 in the units to clock the decades counter.

    Is that clear?
     
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