AVR Lab 3-3

gistfile1.c

#include <avr/io.h>
#define F_CPU 1600000UL
#include <util/delay.h>

#define PORT_LED PORTB
#define DIR_LED DDRB
#define LED1 1
#define LED2 2
#define BTN 0
#define t 200

void delay_ms(unsigned int time){
  while(time-- > 0){
		_delay_ms(100.0);
	}
}

int main(void){
	DIR_LED |= (1<<LED1);
	DIR_LED |= (1<<LED2);

	// Internal Pull up
	PORTB |= (1<<BTN);

	//Set up timer
	TCCR1B |= (1 << CS10);
	int cnt = 0;
	int cnt2 = 0;
	int l1 = 0;
	int l2 = 0;
	while(1){
		if( TCNT1 >= 49999) {
			//PORTB ^= (1<<LED2);
			cnt++;
			cnt2++;
			TCNT1 = 0;
		}
		if(cnt > t && l1 == 0){
			l1 = 1;
		}
		if(l1){
			PORTB |= (1 << LED1);
		}
		if(cnt > t << 1){
			l1 = 0;
			PORTB ^= (1 << LED2);
			PORTB &= ~(1 << LED1);
			cnt = 0;	
		}
		//PORTB ^= (1<<LED1);
		//delay_ms(100);
	}
	return 0;
}