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Help with BCD 7 segment display!!!

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Discussion in 'General Electronics Discussion' started by chirag, Jul 12, 2015.

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  1. Jul 12, 2015 #1
    chirag

    chirag

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    Jul 12, 2015
    im using a 4 bit adder to get 4 bit result in bdc 7 segment display.if i get result in 2 digits, it displays corresponding alphabet which is not desired. Eg: if i add 7 and 8, i want to get 5 (unit's place) in 7 segment display and i want 1 (tens place) in 4 bit so i can display it in another 7 segment display.
    how do i make my adder circuit, help please????

    here: 7+8 (i want 5 in display and 1 as separate result)
    upload_2015-7-12_22-34-42.png
     
  2. Jul 13, 2015 #2
    Harald Kapp

    Harald Kapp Moderator Moderator

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    Nov 17, 2011
    7+5=15 which is "F" in hexadecimal notation. This is what the display shows.
    Use the 4560 BCD adder chip for getting a result in BCD notation.
     
    Gryd3 likes this.
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