#include <LPC17xx.h>

int main(){
	int i; 
	// from P2.15 -> P2.22
	LPC_PINCON->PINSEL4 &= 0x3FFFFFFF; // all values except P2.15 are taken as 1
	LPC_PINCON->PINSEL5 &= 0xFFFFC000; // all values except P2.16 (0,1) -> P2.22 (12,13) are taken as 1

	LPC_GPIO2->FIODIR = 0x007F8000; // all values except 15 -> 22 are taken as 0 (and GPIO2 because it's PIN 2)
	
	while(1){
	LPC_GPIO2-> FIOSET=0x007F8000;
	for(i=0; i<1000; i++); 
	LPC_GPIO2->FIOCLR=0x007F8000;
	for(i=0; i<1000; i++); 
	}
}