gistfile1.c

int main (void)
{
  // DDRG nemuzes predefinovat, to uz existuje
  //DDRG |= _BV(PG1);       //LED9 pro blik
  //DDRG |= _BV(PG0);       //LED10 pro SOS
  
  BLIK |= _BV(PG1);       //LED9 pro blik
  SOS |= _BV(PG0);       //LED10 pro SOS
	
  uint8_t pole[] = { 1,0,1,0,1,0,0,1,1,1,0,1,1,1,0,1,1,1,0,0,1,0,1,0,1 };	

  DDRG |= SOS;

  uint8_t i = 0;
  while (1) {
    morse(pole[i]);
    i++;
    // Osetrit preteceni.
    //_delay_ms(200);
  }
}

void morse (uint8_t i)
{
  if (i) {				         //roznuti
    PORTG |= SOS;
  } else {                //zhasnuti
    PORTG &= ~SOS;
  }
}

/////////////////////////////////////////////////

uint8_t delka_pole = ...;

while(1) {
  for(uint8_t i = 0; i < delka_pole; i++) {
    morse(pole[i]);
  }
}

/////////////////////////////////////////////////

uint8_t i = 0;
while(1) {
  morse(pole[i]);
  
  i++;
  if(i >= delka_pole) {
    i = 0;
  }
}

/////////////////////////////////////////////////

#include <stdint.h>
#include <avr/io.h>

#define MORSE_TECKA  '.'
#define MORSE_CARKA  '-'
#define MORSE_TIME_TECKA  300
#define MORSE_TIME_CARKA  1000

#define MORSE_DDR    DDRG
#define MORSE_PORT   PORTG
#define MORSE_PIN    PG1

#define MORSE_S  "..."
#define MORSE_O  "---"

void morse(uint8_t *znak) {
  while(znak != '\0') {
    case(znak) {
      case MORSE_TECKA:
        MORSE_PORT |= _BV(MORSE_PIN);
        _delay_ms(MORSE_TIME_TECKA);
        break;
      case MORSE_CARKA:
        MORSE_PORT &= ~_BV(MORSE_PIN);
        _delay_ms(MORSE_TIME_CARKA);
        break;
      default:
        // Nemelo by nastat, muzes ohlasit chybu.
    }
    
    znak++;
  }
}

void main(void) {
  // Pin jako vystupni
  MORSE_DDR |= _BV(MORSE_PIN);
  
  // Nase zprava
  char zprava[] = MORSE_S MORSE_O MORSE_S;
  while(1) {
    morse(zprava);
    _delay_ms(3000);
  }
}