byte pinState = LOW;

void setup()
{
  // initialize Timer1

  cli();

  TCCR1A = 0x00;         // Reset to default
  TCCR1B = 0x00;         // Reset to default
  TCNT1  = 0;            // Reset Timer Count to 0
  TIFR1  = 0x00;         // Timer1 INT Flag Reg: Clear Timer Overflow Flag
  //TIMSK1 = (1 << TOIE1); // Timer/Counter1 Overflow Interrupt Enable

  TCCR1B |= (1 << CS01); //No prescaler

  OCR1A = 60000;         // Match value to fire overflow;
  //TIMSK1 = (1 <<  OCIE1A); // Timer/Counter1 Output CompareA Match Interrupt Enable

  //
  // mode, WGMn3, WGMn2,WGMn1,WGMn30
  //15 1 1 1 1 Fast PWM OCRnA BOTTOM TOP
  // Counting from 0 to OCRnA, then automatically set TOVn and reset counter

  TCCR1B |= (1 << WGM13);
  TCCR1B |= (1 << WGM12);
  TCCR1B |= (1 << WGM11);
  TCCR1B |= (1 << WGM10);

  sei();

  pinState = bitRead(PIND, PD2);

  Serial.begin(115200);
  Serial.println("Capturing edge without interrupt");
}

//ISR(TIMER1_OVF_vect) {
//do nothing
//}

void loop() {

  delay(1000);

  int d = 0;

  TCNT1 = 0;

  TCCR1B |= (1 << CS10); // run counter1

  uint16_t t1 = TCNT1;

  pinState = bitRead(PIND, PD2);

  boolean overflow = false;
  boolean pinToggle = false;


  TCNT1 = 0;

  uint16_t t2 = TCNT1;

  uint32_t us = micros();

  volatile int i = 10;

  while (i--)
  {
    TIFR1 = 0x00;
    TCNT1 = 0;

    while (1)
    {

      if ((TIFR1 & bit(TOV1)) )
      {
        overflow = true;
        break;
      }
      /*
        else

        if (pinState != bitRead(PIND, PD2))
        {
          pinToggle = true;
          break;
        }
      */
      /*
        Serial.print("TCNT1:");
        Serial.println(TCNT1);

        Serial.print("OCR1A: ");
        Serial.println(OCR1A);
        Serial.print("OCR1B: ");
        Serial.println(OCR1B);
      */
    }
  }
  uint16_t t3 = TCNT1;

  TCCR1B &= ~(1 << CS10); // stop counter

  us = micros() - us;


  Serial.print("t1= ");
  Serial.println(t1);
  Serial.print("t2= ");
  Serial.println(t2);
  Serial.print("t3= ");
  Serial.println(t3);

  if (pinToggle)
    Serial.println("Toggle");
  if (overflow)
    Serial.println("Overflow");

  Serial.println(us);


  if (pinState == HIGH)
    Serial.println("HIGH");
  else
    Serial.println("LOW");

  Serial.println("--");

}