#include "ecen.h"
void setup() {
  // put your setup code here, to run once:
  init_port();//initialise the port data and direction register

}

void loop() {
  // put your main code here, to run repeatedly:
  char x;
  volatile long i;//if volatile not used compiler will optimize and delay loop wont run
  x=1;
//turn on all led's sequentially
  while(x)
  {
    output(x);
    for(i=0;i<100000;i++);//loop for delay
    x=x<<1;
  }
  
}