keyboard scanning and display over the LEDs

Discussion in 'Embedded Systems and Microcontrollers' started by gayatri, Sep 11, 2009.

  1. gayatri

    Thread Starter New Member

    Jul 28, 2009
    8
    0
    my interest is into embeded sytem programming.i am currently working over a ARM controller.
    i wish to know how do i go about programming for a keyboard and then display the result on LEDS.i wish to use a 4*4 matrix keyboard numbered as 0 to F in hex.(0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F).thus i would require 4 leds for display if i display in binary form or 8 LEDS if in BCD form
    i need to use C language for the same.the software im using is KEIL.
    will i need to perform hex to binary or hex to BCD conversion?please guide me through the programming steps.
     
  2. amjad2000in

    New Member

    Sep 3, 2009
    14
    0
    Hi Gayatri,

    Did you need exact program for ARM in Keil or Programming steps will do???
     
  3. gayatri

    Thread Starter New Member

    Jul 28, 2009
    8
    0
    i would want the program please
     
  4. gayatri

    Thread Starter New Member

    Jul 28, 2009
    8
    0
    yes the program please
     
  5. gayatri

    Thread Starter New Member

    Jul 28, 2009
    8
    0
    please can you guide me through that program as soon as possible
     
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