interfete

void setup() {
DDRD=0x90;
DDRB=0x01;
}

unsigned char functie(unsigned char octet, unsigned char digit)
{
  unsigned char  temp, i;
  PORTB = 0x00;
  PORTD = 0x00;

  for (i =0; i < 8; i++)
  {
      PORTD = 0x00;                 //pas 1
      temp = (octet >> (7 - i));
      temp = temp & 0x01;
      PORTB = temp;                 //pas 2
      PORTD = 0x80;                 //pas 3
      PORTB=0;
    }
  for (i =0; i < 8; i++)
  {
      PORTD = 0x00;                 //pas 1
      temp = (digit >> (7 - i));
      temp = temp & 0x01;
      PORTB = temp;                 //pas 2
      PORTD = 0x80;                 //pas 3
      PORTB = 0;
    }
    PORTB=0x00;
    PORTD=0x10;

}

int main(){
  unsigned char octet, temp, i;
  unsigned char digit;
setup();

while(1){

functie(~0x5B,0x01);

functie(~0x5B,0x08);

functie(~0xbf,0x02);

functie(~0x06,0x04);



  }
}