#include "main.h"
// https://github.com/lkoepsel/AVR_C

#define LED_GREEN_ON setBit(PORTB,Bit5)
#define LED_GREEN_OFF clearBit(PORTB,Bit5)
#define LED_GREEN_TOGGLE toggleBit(PORTB, Bit5)

#define LED_RED_ON setBit(PORTB,Bit3)
#define LED_RED_OFF clearBit(PORTB,Bit3)
#define LED_RED_TOGGLE toggleBit(PORTB, Bit3)

#define LED_BLUE_ON setBit(PORTB,Bit2)
#define LED_BLUE_OFF clearBit(PORTB,Bit2)
#define LED_BLUE_TOGGLE toggleBit(PORTB, Bit2)

#define LED_YELLOW_ON setBit(PORTB,Bit1)
#define LED_YELLOW_OFF clearBit(PORTB,Bit1)
#define LED_YELLOW_TOGGLE toggleBit(PORTB, Bit1)

#define PRESSED checkBit_0(PINB, Bit4)


int main(void)
{
  initPortB();
  initTimer0();
  initTimer1();
  initTimer2();
  initInterrupts();
  // Hauptschleife
  while(1)
  {
    if (PRESSED)
    {
      LED_YELLOW_OFF;
    }
    else
    {
      LED_YELLOW_ON;
    }
  }
}

// Timer0 Interrupt Service Routine
ISR(TIMER0_OVF_vect){
  // entered every 64µs*256@16Mhz => 16.384ms@16Mhz 
  static int counter = 0;
  #define POSTSCALER 31 // 31*16.384ms = 507.904ms
  counter++;
  if (counter >= POSTSCALER){
    LED_GREEN_TOGGLE;
    counter=0;
  }
}

// Timer1 Interrupt Service Routine
ISR (TIMER1_COMPA_vect){
  // enter on compare match A
  LED_BLUE_TOGGLE;
}

// Timer2 Interrupt Service Routine
ISR (TIMER2_COMPA_vect){
  // enter on compare match A
  // LED_TOGGLE;
   static int counter = 0;
  #define POSTSCALER 31 // 31*16.384ms = 507.904ms
  counter++;
  if (counter >= POSTSCALER){
    LED_RED_TOGGLE;
    counter=0;
  }
}