/*****************************************************
This program was produced by the
CodeWizardAVR V1.24.6 Standard
Automatic Program Generator
c Copyright 1998-2005 Pavel Haiduc, HP InfoTech s.r.l.
http://www.hpinfotech.com
e-mail:office@hpinfotech.com

Project : 
Version : 
Date    : 23.12.2006
Author  : MTh                             
Company : MTh                             
Comments: 


Chip type           : ATmega8
Program type        : Application
Clock frequency     : 4,000000 MHz
Memory model        : Small
External SRAM size  : 0
Data Stack size     : 256
*****************************************************/

#include <mega8.h> 
#include <stdlib.h>
#include <ctype.h>
#include <string.h>


//Цифры                             0   1  2   3  4  5  6  7   8   9   ,    -  гр   d   E   r
unsigned char digit_ar[17]      = {126,66,109,103,83,55,63,98,127,119,128,0,1, 113, 79, 61, 9};
//Номер знакоместа  на выводе порта
unsigned char SPlace_ar[4]      = { 0b00001000,
                                    0b00000100, 
                                    0b00000010,
                                    0b00000001};

//Глобальная переменная для хранения строки вывода
unsigned char str[4];
//Номер знакоместа
unsigned char SignPlace = 0;



void avr_init(void);


//Timer 0 interrupt
interrupt [TIM0_OVF] void timer0_ovf_isr(void)
{
    unsigned char m;
    bit c;
    
    TCNT0  = 0; 
 

    m   = toint(str[SignPlace]);


    PORTD   =   digit_ar[m];
    PORTC   =   SPlace_ar[SignPlace];
    c = 0;
    SignPlace = SignPlace + 1;
    if (SignPlace == 4) SignPlace = 0;
 
}

void main(void)
{

    avr_init(); 
      
    while (1)
            {
                itoa(1234, str); //Процедура конвертации целого числа в строку.
            };


   
}

void avr_init(void)
{
// Input/Output Ports initialization
// Port B initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=Out  Func1=In Func0=In 
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=P 
PORTB=0x00;
DDRB=0x04;

// Port C initialization
// Func6=Out Func5=Out Func4=Out Func3=Out Func2=Out Func1=Out Func0=Out 
// State6=T State5=T State4=T State3=T State2=T State1=T State0=T 
PORTC=0x00;
DDRC=0xFF;

// Port D initialization
// Func7=Out Func6=Out Func5=Out Func4=Out Func3=Out Func2=Out Func1=Out Func0=Out 
// State7=0 State6=0 State5=0 State4=0 State3=0 State2=0 State1=0 State0=0 
PORTD=0x00;
DDRD=0xFF;

// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: 65,500 kHz
TCCR0=0x03;
TCNT0=0x00;

// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: Timer 1 Stopped
// Mode: Normal top=FFFFh
// OC1A output: Discon.
// OC1B output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
// Timer 1 Overflow Interrupt: Off
// Input Capture Interrupt: Off
// Compare A Match Interrupt: Off
// Compare B Match Interrupt: Off
TCCR1A=0x00;
TCCR1B=0x00;
TCNT1H=0x00;
TCNT1L=0x00;
ICR1H=0x00;
ICR1L=0x00;
OCR1AH=0x00;
OCR1AL=0x00;
OCR1BH=0x00;
OCR1BL=0x00;

// Timer/Counter 2 initialization
// Clock source: System Clock
// Clock value: Timer 2 Stopped
// Mode: Normal top=FFh
// OC2 output: Disconnected
ASSR=0x00;
TCCR2=0x00;
TCNT2=0x00;
OCR2=0x00;

// External Interrupt(s) initialization
// INT0: Off
// INT1: Off
MCUCR=0x00;

// Timer(s)/Counter(s) Interrupt(s) initialization
TIMSK=0x01;

// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;
SFIOR=0x00;

#asm("sei") //Включаем прерывания
}