segmentówka2

//Cezary Zaprawa Prosze wyswietlic sekwencje znakow na wyswietlaczu, tak, aby kazdy znak byl w oddzielnym segmencie
//Po kliknieciu sekwencja na wyswietlaczu powinien
#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/pgmspace.h>

#define BUTTON_MASK (1<<PD2)
#define BUTTON_PIN  PIND
#define BUTTON_PORT PORTD

volatile uint8_t button_down;


const char codeArray[16] PROGMEM =
{0xC0, 0xF9, 0xA4, 0xB0, 0x99, 0x92, 0x82, 0xF8, 0x80, 0x90, 0x88, 0x83, 0xc6, 0xa1, 0x86, 0x8e};

char array[16] =
{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};

volatile uint8_t readByte = 0;
volatile uint8_t displayCounter = 0;
volatile uint8_t arrayCounter = 0;
volatile uint8_t index = 0;

ISR(TIMER1_OVF_vect) {
    PORTB = ~(1 << displayCounter);
    readByte = pgm_read_byte(&codeArray[array[arrayCounter + index]]);
    PORTA = readByte;
    displayCounter++;

    if (displayCounter == 4)
        displayCounter = 0;

    if(arrayCounter == index+3)
        arrayCounter = index;
    else
        arrayCounter++;
}

ISR(TIMER0_COMP_vect) {
  static uint8_t count = 0;
  static uint8_t button_state = 0;
  uint8_t current_state = (~BUTTON_PIN & BUTTON_MASK) != 0;
  if (current_state != button_state) {
    count++;

    if (count >= 4) {
      button_state = current_state;

      if (current_state != 0)
        button_down = 1;

      count = 0;
    }
  } else {
    count = 0;
  }
}


ISR(INT0_vect) {
    if(button_down) {
        button_down = 0;
        if (index < 6) index++;
        displayCounter = 0;
    }
}

void init(){
    cli();

    //Timer1
    ICR1 = 150;
    TCCR1A |= (1 << WGM11);
    TCCR1B |= (1 << WGM12) | (1 << WGM13) | (1 << CS10);
    TIMSK |= (1 << TOIE1);


    //Timer0
    OCR0 = 250;
    TIMSK |= (1 << OCIE0);
    TCCR0 |= (1 << WGM01) | (1 << CS01);


    //Int0
    MCUCR |= (1 << ISC01);
    GICR |= (1 << INT0);

    DDRA = 0xFF;
    PORTA = 0x00;

    DDRB = 0b00001111;
    sei();
}

int main(void) {
    init();
    BUTTON_PORT |= BUTTON_MASK;
    while(1) {
        asm("nop");
    }
}