avr_code.ino

#include "timer_1.h"
#include "pinchange.h"
#include <avr/io.h>

int main(void) {

  // enable serial port for output
  Serial.begin(9600);
  // init hardware timer
  timer_init();
  // init pin change interrupt
  init_pc();



  // enable interrupts
  sei();
  // start time measurement
  timer_start();
  PORTA = 0xff; // trigger own interrupt

  // timer will be stopped in pc interrupt

  while(1) {
  }

}