visitor counter display on lcd

Discussion in 'Embedded Systems and Microcontrollers' started by venkatagovardhan, Apr 4, 2014.

  1. venkatagovardhan

    Thread Starter New Member

    Apr 4, 2014
    1
    0
    can any one help me to complete the code for visotor counter and display it on lcd screen.i had the code upto counting.i want to display the number on the lcd screen.

    ORG 0000H
    MOV P0,#0H
    MOV P1,#0H
    MOV P2,#0H
    MOV R3,#0H

    MAIN: JB P2.0, INCRES
    JB P2.1, DECRES
    SJMP MAIN

    INCRES: INC R3
    MOV A,R3
    DA A
    MOV P3,A
    ACALL DELAY
    SJMP MAIN


    DECRES: DEC R3
    MOV A,R3
    DA A
    MOV P3,A
    ACALL DELAY
    SJMP MAIN


    DELAY: MOV R0,#20
    LOOP3: MOV R1,#255
    LOOP2: MOV R2,#255
    LOOP1: DJNZ R2,LOOP1
    DJNZ R1,LOOP2
    DJNZ R0,LOOP3

    RET

    END
     
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