/*
 * main.c
 *
 *  Created on: 10/gen/2014
 *      Author: topicchi
 */
#define F_CPU 1000000L

#include <avr/io.h>
#include <util/delay.h>
#define MIN 125
#define MAX 250

int main (void)
{
	/*unsigned int loops;
	//Port D pins as input, Pull-Up on all Inputs (0xFF)
	//Pushbuttons to GND on D0, D1, D2 and D3
	DDRD=0x00;
	PORTD=0xFF;

	// Set PORTB1 pin as output
	// LED on B0
	// Servo on OC1A - PB3
	DDRB=0xFF;

	//TCCR1A = (1<<COM1A1) | (1<<WGM11);    //clear on compare
	//TCCR1B = (1<<WGM12)  | (1<<WGM13) | (1<<CS11); //presc 8
	TCCR1A = (1<<COM1A1)|(1<<COM1B1)|(1<<WGM11);
	TCCR1B = (1<<WGM13)|(1<<WGM12)|(1<<CS11);
	//ICR1=20000;      //period = 20 ms
	ICR1=2559;      //period = 20 ms
	OCR1A  = 187;
	while(1)
	{
		if(bit_is_clear(PIND, 3)) {
			//Max Position
			OCR1A  = MAX;
			loop_until_bit_is_set(PIND, 3);
		}
		if(bit_is_clear(PIND, 0)){
			//increase duty cycle
			OCR1A +=10;
			if (OCR1A >MAX){
				OCR1A =MAX;
			}
			loop_until_bit_is_set(PIND, 0);
		}
		if(bit_is_clear(PIND, 1)) {
			//decease duty cycle
			OCR1A -=10;
			if (OCR1A <MIN){
				OCR1A =MIN;
			}
			loop_until_bit_is_set(PIND, 1);
		}
		if(bit_is_clear(PIND, 2)) {
			//Min Position
			OCR1A  = MIN;
			loop_until_bit_is_set(PIND, 2);
		}


		//_delay_ms(500);
		if(loops++<500) {
			_delay_ms(1);
		}
		else {
			PORTB = PORTB ^ 0b00000001;
			loops=0;
		}
		*/
		DDRB=0x00;
		PORTB=0xFF;
		while(1)
		{
			PORTB ^= 0b10000000;
			_delay_ms(500);
		}
	return 0;
}