PWM for servo control

#include <avr/io.h> 
#include<avr/interrupt.h>
#include<util/delay.h>

 
// Volatile keyword is important
volatile char count=0;
 unsigned int degrees;
// We use this ISR to leave only every sixth pulse and remove the rest.
// This reduces the PWM frequency to ~56Hz.
ISR(TIMER2_COMP_vect) {
	if (count){ // Disconnect the OC2 to reduce pulse rate
		TCCR2 &= ~(1<<COM21);
		count--;
	}
	else { // Connect the OC2 (PD7) for this pulse
		TCCR2 |= (1<<COM21);
		count=6;
	}
}
 
int main(void) { 
	DDRD|=(1<<PD7); // selcet OC0 as output pin
	// Fast PWM, TOP = 255, Prescale = 128, F_CPU = 11.0592Mhz
	TCCR2 |= (0<<FOC2)|(1<<WGM20)|(1<<WGM21)|(0<<COM20)|(1<<COM21)|(1<<CS20)|(0<<CS21)|(1<<CS22);
	// This gives you ~1ms pulse. (86.4 is accurate value).
	OCR2=0;
 
	// Setup interrupt so we can remove pulses from the pulse train
	TIMSK |= OCIE2;
	sei();
 
		while(1) 
		{ 
		    _delay_ms(1000);
			OCR2 = 65 + ((130 * degrees) / 180);
			degrees=degrees+1;
			if(degrees==180)
			degrees =0;
		} 
}

#include <avr/io.h> 
#include<avr/interrupt.h>

// Volatile keyword is important
volatile char count=0;

// We use this ISR to leave only every third pulse and remove the rest.
// This reduces the PWM frequency to ~56Hz.
ISR(TIMER0_COMP_vect) {
	if (count){ // Disconnect the OC0 to reduce pulse rate
		TCCR0 &= ~(1<<COM01);
		count--;
	}
	else { // Connect the OC0 (PB3) for this pulse
		TCCR0 |= (1<<COM01);
		count=3;
	}
}

int main(void) { 
	DDRB|=(1<<PB3); // selcet OC0 as output pin
	// Fast PWM, TOP = 255, Prescale = 256, F_CPU = 11.0592Mhz
	TCCR0 |= (0<<FOC0)|(1<<WGM00)|(1<<WGM01)|(0<<COM00)|(1<<COM01)|(0<<CS00)|(0<<CS01)|(1<<CS02);
	// This gives you ~1ms pulse. (43.2 is accurate value).
	OCR0=43;
	
	// Setup interrupt so we can remove pulses from the pulse train
	TIMSK |= OCIE0;
	sei();
	
		while(1) { 
		 
		} 
}