Lpc2000

Hi all

    I measured the execution time of the code shown below using break points in the keil simulator and it was approximately 500 micro seconds. 
  But when I measured the execution time of the same code from the Philips ARM board LPC2129 it was about 3000 micro seconds.
  Do you have any idea about the cause of this difference?
   
  Note that I used the following adjustments before running the code:
  Target: Philips LPC2129
  Oscillator frequency: 12 MHz
  CCLK= 48MHz
  PCLK= CCLK/2
  Cc: No optimization for the code
   
  Code:
   
   
              unsigned int i,j;
              for (i=0;i<5;i++)
                          {
                          for (j=0;j<286;j++);  
                          }
   
  Thanks for your help.
  Ayman


		
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