#include "lpc21xx.h"

#define LED1PIN		12
//#define LED2PIN         13

static void delay(void)
{
 volatile int i,j;
 for(i=0;i<100;i++)
  for (j=0;j<1000;j++);
}

int main(void)
{
 
 MAMCR = 2;

 IODIR0 |=(1<<LED1PIN);
 IOSET0 = (1<<LED1PIN);

 while(1)
 {
  IOCLR0=(1<<LED1PIN);
  delay();
  IOSET0=(1<<LED1PIN);
  delay();
 }
}