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







int main(void)
{
	DDRD|=((1<<PD0)|(1<<PD1)|(1<<PD2)|(1<<PD3)); //wyjscia mostek h
	DDRD|=((1<<PD5)|(1<<PD4)); //wyjscia PWM_1AB
	TCCR1A|=((1<<COM1A1)|(1<<COM1B1)); //fast_PWM
	TCCR1A|=((1<<WGM12)|(1<<WGM10));
	TCCR1B|=((1<<CS11)|(1<<CS10)); //prescaler 64
	OCR1A=0;
	OCR1B=0;
	PORTD|=((1<<PD0)|(1<<PD2));
	PORTD&=~((1<<PD1)|(1<<PD3));

    while (1)
    {

    	uint8_t i;
    	while(i<250)
    	{
    		OCR1A=OCR1B=i;
    		i+=10;
    		_delay_ms(100);
    	}
    	while(i>0)
    	{
    		OCR1A=OCR1B=i;
    		i-=10;
    		 _delay_ms(100);

    	}
    }
}