errorrrrrrrrrrr!!!!

Discussion in 'Programmer's Corner' started by at89c52, Dec 19, 2008.

  1. at89c52

    Thread Starter New Member

    Dec 19, 2008
    1
    0
    i have problem in programming in keil uvision 3....
    when ever i programme for interrupts,error L121 occurs when i build it(no prblm with compile) whenever i use interrupts...i am novice so was unable to understand it in uvision help...anyhelp??? i wrote the foll. programme:
    #include<reg52.h>
    sbit sw=P1^7;
    sbit ind=P1^0;
    sbit wave=P2^5;
    void timer0(void) interrupt 1
    {wave=~wave;
    }
    void main(void)
    {
    sw=1;
    TMOD=0x02;
    TH0=0xA4;
    IE=0x82;
    while(1)
    {ind=sw;
    }}
     
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