Logic Circuits

Discussion in 'Homework Help' started by jhef_cute_11, Dec 6, 2010.

  1. jhef_cute_11

    Thread Starter New Member

    Nov 17, 2010
    7
    0
    Hi senior members, can someone help me with my project ,
    we are required to design a running message using gates and a 7 segment display as an output. . .

    specification are as follows:

    - use five letter that would spell out your name
    (ex. Jeffb)
    - use at least 1 capital letter
    - at most 1 repetitive letter
    - use breadboard to plot your circuit. .

    ex. dorAi

    0000 (blank)

    0001 i

    0010 A i

    0011 r A i

    0100 o r A i

    0101 d O r A i

    0110 upper segment of the display

    for d = _I
    for o = I-I
    for r = -
    for a = o
    for i = i

    its like cutting the downpart of the segment;
    d o r A i
    0111 - -
    1000 (blank)
    1001 _ _
    1010 going up from the 2 lines of d and o
    ex o = o (full small o seen in the 7 segment)

    1011 d o r A i
    1100 d o r A
    1101 d o r
    1110 d o
    1111 d

    plssssssshttp://forum.allaboutcircuits.com/images/smilies/biggrin.gif
     
  2. jhef_cute_11

    Thread Starter New Member

    Nov 17, 2010
    7
    0
    my desired name is JEFFb
     
  3. jhef_cute_11

    Thread Starter New Member

    Nov 17, 2010
    7
    0
    by the way, my desired name is JEFFb
     
  4. Georacer

    Moderator

    Nov 25, 2009
    5,142
    1,266
    Your correspondancies between the desired letters and the 7-seg segments don't make much sense to my eyes.

    Take a look at the datasheet of a typical 7-segment display.
    http://www.cs.ucr.edu/cs120b/cs120b_02spr/labs/lab7.html

    Can you break down each of your desired characters to a set of segments?
    ie. d={1,2,3,4,7}
     
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