#include <LPC17xx.h>

int main(){
	unsigned long x, i, j;
	// from P1.24 -> 31
	LPC_PINCON->PINSEL0 = 0;  // values 

	LPC_GPIO0->FIODIR = 0xFF<<15; 
	
	x = 1<<15; // new variable
	
	while(1){
	x = 1<<15; 

	// LOOP to fill 24->31 incrementally
	for(i=0;i<8;i++){
		LPC_GPIO0->FIOSET=x; 
		x = x<<1;
		for(j=0; j<800000; j++);
	}
 // delay

	// LOOP to empty 24->31 incrementally.
	x = 1<<15; 
	for(i=0;i<8;i++){
		LPC_GPIO0->FIOCLR=x;
		x = x<<1;
		for(j=0; j<800000; j++);

	}
	}