blink_withAvrlibc.pde

/*
  Rework original sample with AVR-libc.
 */

#include <avr/io.h>
#include <util/delay.h>
// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin 13 as an output.
  DDRB |= _BV(5);    // pinMode(13, OUTPUT);  
}

// the loop function runs over and over again forever
void loop() {
  PORTB |= _BV(5);      //digitalWrite(13, HIGH);   
  _delay_ms(1000);          
  PORTB &= ~_BV(5);     //digitalWrite(13, LOW); 
  _delay_ms(1000);          
}