Hello,
This is the first time I'm writing a c code for the keil c51 conpiler so please help me out. Here is a sample delay code I wrote, I guess it is approximately 4 seconds, but the problem is it is not giving a uniform delay. After giving 4seconds delay for 10 times, it gives a delay of 10seconds and then it's back to normal. Also please tell me who to calculate exact delay for c code.

#include <reg51.h>

void delay(void)
{
 int i,j;
  for(j=0;j<10;j++)
   for(i=0;i<32767;i++)
   	i=i;
}
void main(void)
{while(1)
  {
   P1=0x00;
   delay();
   P1=0x0ff;
   delay();
  }
}

Thank you
Ashwin.V