Mikrokontrolery cw2 zad1

#include<avr/io.h>

int main(void){
    DDRA = 0xFF;
    DDRB = 0x0F;
    unsigned char napis[4];
    napis[0] = 0b00000110;//E
    napis[1] = 0b00101111;//r
    napis[2] = 0b00100011;//o
    napis[3] = napis[1]; // r
    PORTA = napis[2];
    PORTB = 0b00001011;

for(;;){
    for (unsigned char i = 0; i<4 ; i++){
        PORTB = ~(_BV(3-i));
        PORTA = napis[i];
        for(unsigned long i=0; i<=100;i++){
                __asm__ ( "nop;");
            }
    }
}

}