/*
 * c_praks.c
 *
 * Created: 20.04.2018 10:10:02
 * Author : Tudeng
 */

#include <avr/io.h>

void wait(uint16_t a){
	for (uint16_t g = 0; g<a; g++){
		for(uint32_t i = 0; i < 1000000/11; i++){
			asm volatile ("nop");
		}
	}
}

int main(void){
	DDRA = 1;

	while(1){
		//S
		PORTA = 1;
		wait(1);
		PORTA = 0;
		wait(1);
		PORTA = 1;
		wait(1);
		PORTA = 0;
		wait(1);
		PORTA = 1;
		wait(1);
		PORTA = 0;
		wait(3);

		//O
		PORTA = 1;
		wait(3);
		PORTA = 0;
		wait(1);
		PORTA = 1;
		wait(3);
		PORTA = 0;
		wait(1);
		PORTA = 1;
		wait(3);
		PORTA = 0;
		wait(3);

		//S
		PORTA = 1;
		wait(1);
		PORTA = 0;
		wait(1);
		PORTA = 1;
		wait(1);
		PORTA = 0;
		wait(1);
		PORTA = 1;
		wait(1);
		PORTA = 0;
		wait(7);
	}
	return 0;
}