#define  F_CPU 	8000000UL	
#include "avr/io.h"
#include "util/delay.h"
int main ( )
{
	unsigned char i;

	DDRB = 0x08;	
	i = 127;
	OCR0 = 127;    
	TCCR0 = 0x73;  

	while (i != 0)
	{
		OCR0 = i;
          _delay_ms(25); 
		i++;
	}
	while (1);
	return 0;
}