Isr (interrupt service rotuine )... Problem with 89c51

Discussion in 'Homework Help' started by rus1511, Mar 11, 2011.

  1. rus1511

    Thread Starter New Member

    Mar 11, 2011
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    above give attachment ... is of multisim 11 file..in that.......when we execute program of mcu ...1st cycle works properly... when we disable interrupt it and use that pin as i/p pin key...and by pressing that..our program...ends........and once again ready for second vehicle......(means starting frm head...) at that time when we enble interrupt.... ----dont know y..controller executes there isr...though there is no interrupt call........





    waiting for solution.... ans


    if any query in question pls contact on.... <snip>


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    Last edited by a moderator: Mar 11, 2011
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