FINAL KEK

#include <ioavr.h>
#include <inavr.h>

#define DV_50Hz 144
#define DV_1Hz  36

//Symbolic names for connecting 7-segment LED display
#define LED_SEG PORTE
#define LED_SEG_DIR DDRE
#define LED_DG PORTB
#define LED_DG_DIR DDRB

#define DEC_OFF 0x3F
#define DISP_MAX 6
//Decoding table based on CD4056 -> '0123456789LHPA- '
__flash unsigned char bcd_to_led[] = {
    0xDE, 0x82, 0xEC, 0xE6,
    0xB2, 0x76, 0x7E, 0xC2,
    0xFE, 0xF6, 0x1C, 0xBA,
    0xF8, 0xFA, 0x20, 0x00
};

unsigned char DEC_1_OF_6[] =
    {0xFE, 0xFD, 0xFB, 0xF7, 0xEF, 0xDF};


//Global variables
unsigned char freq_dv;
unsigned char disp[6] = {0,0,0,0,0,0};
unsigned static char time=0;
//time should be set in form: [minute, second];
unsigned static char lowerBorder[2]= {0,10};
unsigned static char upperBorder[2]= {0,30};

/*
 const char bordersLCD[] =
    lowe;

void displayBorder()
{
    LCDGoTo(LINE_1 + 21);
    LCDPuts(endingMes);
}
*/
void InitDevices()
{
    LED_DG = 0xFE;
    LED_DG_DIR = 0xFF;
    LED_SEG_DIR = 0xFF;
     DDRA =  0x0;
    //Prescaler fclk / 1024 = 7200Hz
    //Prescaler for T0 is different than for T1,T2,T3
    OCR0 = DV_50Hz - 1;
    TCCR0 = (1 << CS02) | (1 << CS01) | (1 << CS00);
    TIMSK = (1 << OCIE0);
    __enable_interrupt();
}
 int checkBorders(){
  if((time>(lowerBorder[0]*60+lowerBorder[1]) && time<(upperBorder[0]*60+upperBorder[1]))){
        return 1;
  } else {
   return 0;
 }
}
void Timer() {
     static unsigned char timer[4] = { 0, 0, 0, 0 };

    time++;
    timer[0] = time % 10;
    timer[1] = ((time - (time % 10) )/ 10) % 6;
    timer[2] = ((time - (time % 60))/60) %10;
    timer[3] = ((time - (time % 60)) / 60)/10 % 6;

    //bcd_to_led[
            // LED_SEG = bcd_to_led[(i++)%10];
        disp[0] = bcd_to_led[timer[0]];
        disp[1] = bcd_to_led[timer[1]];
        disp[2] = bcd_to_led[timer[2]];
        disp[3] = bcd_to_led[timer[3]];
}



#pragma vector = TIMER0_COMP_vect
__interrupt void T0_COMP_ISR()
{
//static -> global variabl, visible insied declaration scope (file, function)
static unsigned char cur_disp = 0;
  //  LED_DG |= DEC_OFF;
    LED_SEG = disp[cur_disp];
    LED_DG = DEC_1_OF_6[cur_disp];
    if((++cur_disp) == DISP_MAX) cur_disp = 0;

static unsigned char freq_dv = DV_1Hz;
    if(--freq_dv) return;
    freq_dv = DV_1Hz;
    //Update to nexy symbol from bcd_to_led array
  Timer();

}

void main()
{
     InitDevices();
    while(1)
    {
      if(checkBorders()){
         DDRA =  0xFF;
      }else{
         DDRA =  0x0;
      }
    }
}