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simple problem become complicated. plz help plzzzzzzzzz

Discussion in 'Microcontrollers' started by yasir2011, Oct 26, 2011.

  1. yasir2011

    yasir2011 New Member

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    i just want to check uc.
    my 89s51 giving high in all the port
    why ?
    i m using a very simple coding

    org 0000h
    setb p2.0
    setb p2.1
    h1: mov c,p2.0
    mov p1.0,c

    mov c,p2.1
    mov p1.1,c
    sjmp h1
    end

    it should low if p2.0 low so p1.0 should also low. but its give high all the time
    i connect ea=vcc=1 and rst ckt as well as.
    i think so there is no mistake.
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