Decimal Counter with 7-segment display Circuit Design (time delay between states: 5-8 seconds)

Discussion in 'Homework Help' started by Mia Tom, May 18, 2016.

  1. Mia Tom

    Thread Starter New Member

    May 18, 2016
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    I need to create a pseudo code / sequential circuit design for a counter that displays digits "9" to "0" in a 7-segment LCD display. Each digit display duration is supposed to last for about 5 - 8 seconds each. Taking note that a 555 timer cannot be used directly. My problem is that I don't know how to do this in way that is efficient and conventional. Can someone tell me a simple way to do so? :):):)
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  2. Mia Tom

    Thread Starter New Member

    May 18, 2016
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    Note that it was instructed that we can only make use of simple flip flops (D, T, JK) and combinational circuits (Decoder, Multiplexer etc.)
     
  3. WBahn

    Moderator

    Mar 31, 2012
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    Don't worry too much about "conventional" and "efficient" at first -- get something that works, no matter how ugly.

    What are you allowed to use for a clock?

    That aside, assume you have a clock at a suitable frequency. How many flip flops do you need?

    Have you put together a state table?
     
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