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Problem in Interrupt

Rajesh N

I have a strange problem in interrupt, I am incrementing a variable in interrupt and displayng in main program, the code is working fine for some time , latter the system gets hanged , i dont know why??

if there is any solution to this problem plz let me know, I am using Silabs C8051F120

int var=0;
        void PCA_Timer_Interrupt(void) interrupt 9 using 2
         {
                 var++;
          }


       void main()

{
          sprintf(buffer,"%d",(int)var);
          display(buffer,LINE1);

}

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  • 0 in reply to ninja Z

    "He isn't using the var as an array subscript or a pointer offset,is he?"

    Well, he hasn't shown any code that does that - but then the code that he has shown doesn't make sense, does it?

    Jonny was just proposing an example of one way that could lead to crashing the program