converters

Discussion in 'Homework Help' started by ash2007, Mar 18, 2007.

  1. ash2007

    Thread Starter New Member

    Mar 9, 2007
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    0
    i want to design a converter that converts BCD to seven segmental display?
    How can i do this?
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    Make a table that shows which segments are illuminated for each BCD code. That will be your guide for the logic in the converter.
     
  3. ash2007

    Thread Starter New Member

    Mar 9, 2007
    6
    0
    i have made it but was unable to understand what should i do for numbers above 9 .should i use the don't care condition
     
  4. beenthere

    Retired Moderator

    Apr 20, 2004
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    BCD is binary coded decimal. It encompasses only 0-9. You only need those digits.
     
  5. ash2007

    Thread Starter New Member

    Mar 9, 2007
    6
    0
    in BCD we have 4-bit representation.0-9 can be represented and interms of zeros and ones.when i form a karnauge map i will have 16 position.i will be able to fill 10 of them by 0 and 1 according to BCD conversions for each element of seven segmental display.what about the other positions?
     
  6. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    If you are interested in BCD, just ignore them.
     
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