volatile int step = 6553; 
volatile bool flag_INT1 = 1; 
volatile bool flag_INT2 = 1; 
volatile int cat = 0; 
 
ISR(INT1_vect) 
{ 
  TCCR2B |= (1 << CS22) | (1 << CS21) | (1 << CS20); 
}

ISR(INT2_vect) 
{ 

  TCCR2B |= (1 << CS22) | (1 << CS21) | (1 << CS20); 
} 


 
int8_t EXTERNAL_IRQ_0_init() 
{ 
  EICRA = (0 << ISC11) | (1 << ISC10); 
  EIMSK = (1 << INT1);

  EICRA = (0 << ISC21) | (1 << ISC20); 
  EIMSK = (1 << INT2); 
 
} 
int8_t TIMER_1_init() // шим 
{ 
 
  /* Enable TC1 */ 
  PRR0 &= ~(1 << PRTIM1); 
 
  TCCR1A = (0 << COM1A1) | (0 << COM1A0)   /* Normal port operation, OCA disconnected */ 
           | (1 << COM1B1) | (0 << COM1B0) /* Clear OCB on Compare Match, set OCB on BOTTOM (non-inverting mode) */ 
           | (1 << WGM11) | (1 << WGM10);  /* TC16 Mode 15 Fast PWM */ 
 
  TCCR1B = (1 << WGM13) | (1 << WGM12)                /* TC16 Mode 15 Fast PWM */ 
           | 0 << ICNC1                               /* Input Capture Noise Canceler: disabled */ 
           | 0 << ICES1                               /* Input Capture Edge Select: disabled */ 
           | (0 << CS12) | (0 << CS11) | (1 << CS10); /* IO clock divided by  */ 
 
  // ICR1 = 0x0; /* Input capture value, used as top counter value in some modes: 0x0 */ 
 
  OCR1A = 0xffff; /* Output compare A: 0xffff длительность*/ 
 
 
  OCR1B = 0; /* Output compare B: 0x100 ЯРКОСТЬ */ 
 
  // GTCCR = 0 << TSM /* Timer/Counter Synchronization Mode: disabled */ 
  //   | 0 << PSRASY /* Prescaler Reset Timer/Counter2: disabled */ 
  //   | 0 << PSRSYNC; /* Prescaler Reset: disabled */ 
 
  TIMSK1 = 1 << OCIE1B   /* Output Compare B Match Interrupt Enable: enabled */ 
           | 1 << OCIE1A /* Output Compare A Match Interrupt Enable: enabled */ 
           | 0 << ICIE1  /* Input Capture Interrupt Enable: disabled */ 
           | 0 << TOIE1; /* Overflow Interrupt Enable: disabled */ 
 
  return 0; 
} 
 
int8_t TIMER__debounce_init() 
{ 
 
  /* Enable TC2 */ 
  PRR0 &= ~(1 << PRTIM2); 
 
  // TCCR2A = (0 << COM2A1) | (0 << COM2A0) /* Normal port operation, OCA disconnected */ 
  //   | (0 << COM2B1) | (0 << COM2B0) /* Normal port operation, OCB disconnected */ 
  //   | (0 << WGM21) | (0 << WGM20); /* TC8 Mode 0 Normal */ 
 
  TCCR2B = 0;                                          /* TC8 Mode 0 Normal */ 
  //  | (0 << CS22) | (1 << CS21) | (0 << CS20); /* IO clock divided by 256 */ 
 
  TIMSK2 = 0 << OCIE2B   /* Output Compare B Match Interrupt Enable: disabled */ 
           | 0 << OCIE2A /* Output Compare A Match Interrupt Enable: disabled */ 
           | 1 << TOIE2; /* Overflow Interrupt Enable: enabled */ 
 
  // OCR2A = 0x0; /* Output compare A: 0x0 */ 
 
  // OCR2B = 0x0; /* Output compare B: 0x0 */ 
 
  // GTCCR = 0 << TSM /* Timer/Counter Synchronization Mode: disabled */ 
  //   | 0 << PSRASY /* Prescaler Reset Timer/Counter2: disabled */ 
  //   | 0 << PSRSYNC; /* Prescaler Reset: disabled */ 
 
  return 0; 
} 
 
 
int main(void) 
{ 
  TIMER_1_init(); 
  TIMER__debounce_init(); 
  EXTERNAL_IRQ_0_init();  
  sei();
  Serial.begin(115200); 
  DDRB|=(1<<PB7);
  while (1) 
  { 
    PORTB^=(1<<PB7);
    _delay_ms(500);
      
  } 
} 
 
 
ISR(TIMER1_COMPB_vect) 
{ 

} 
 
ISR(TIMER1_COMPA_vect) 
{ 
  Serial.print(OCR1B);  
  Serial.print(" ");  
  Serial.println(cat);
  if (flag_INT2) 
  { 
    OCR1B = step * cat;
  } 
 
 
} 
// Не понятно в чем проблема. Левая кнопка срабатывает и должна закидывать нас сюда ---|, но закидывает в нижний PIND.
ISR(TIMER2_OVF_vect)                                                              //   |
{                                                                                 //   |                                                      
  TCCR2B &= ~((1 << CS22) | (1 << CS21) | (1 << CS20));                           //   |
                                                                                  //   |
  if (((PIND) & (1 << PD1)) == 0)//<--------------------------------------------------- 
  { 
    flag_INT1 = 0; 
    cat--; 
    
  } 
  else 
  { 
    flag_INT1 = 1; 
  }

  if (((PIND) & (1 << PD2)) == 0) 
  { 
    flag_INT2 = 0; 
    cat++; 
    if (cat > 10) 
    { 
      cat = 10; 
    } 
  } 
  else 
  { 
    flag_INT2 = 1; 
  }
  
  

}