/*****************************************************
This program was produced by the
CodeWizardAVR V1.24.2c Professional
Automatic Program Generator
© Copyright 1998-2004 Pavel Haiduc, HP InfoTech s.r.l.
http://www.hpinfotech.ro
e-mail:office@hpinfotech.ro

Project : 
Version : 
Date    : 03/10/2011
Author  : F4CG                            
Company : F4CG                            
Comments: 


Chip type           : ATmega8535
Program type        : Application
Clock frequency     : 16,000000 MHz
Memory model        : Small
External SRAM size  : 0
Data Stack size     : 128
*****************************************************/

#include <mega8535.h>
#include <stdio.h>
#include <delay.h>

#define Vert PIND.6 
///#define Rouge PIND.7
#define Bleu PINB.5
#define CaptD PIND.4
#define CaptA PIND.5
#define ENABLE PORTD.7

// Alphanumeric LCD Module functions
#asm
   .equ __lcd_port=0x15 ;PORTC
#endasm
#include <lcd.h>

// Declare your global variables here
unsigned char dizaine, unite, dizieme, centieme,car;

flash const unsigned char valeur_constant[]=
{
0xEE,0x82,0xDC,0xD6,0xB2,0x76,0x7E,0xC2,0xFE,0xF6,
0xFA,0xFE,0x6C,0xEE,0x7C,0xF8,0x7E,0xBA,0x82,0x86,
0x3C,0x2C,0xEA,0x1A,0xEE,0xF8,0xF2,0xFA,0x76,0x3C,
0x0E,0xAE,0xDC};

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

void Afficheur(unsigned char adresse, unsigned char caractere, unsigned char point)
{
	if ( point == 1 )
	{
		PORTA = (valeur_constant[caractere] | 0x01); //	Un point est rajouté après le caractère
	}
	else
	{
		PORTA=valeur_constant[caractere]; //Un caractere tout seul
	}
	PORTB=(0b00010000|adresse_constant[adresse & 0x0F]);
	PORTB.4=1;
	PORTB.4=0;
	PORTB.4=1;
	PORTA=0x00;
} 

unsigned char USART_Receive( void )
{
/* Wait for data to be received */
while ( !(UCSRA & 0x80) ) // Test de RXC bit7
;
/* Get and return received data from buffer */
return UDR;
}

interrupt [TIM1_COMPA] void timer1_compa_isr(void)
{
        centieme++;
        if( centieme == 10 )
        {   
                dizieme++;
                centieme = 0;
                if( dizieme == 10)
                {
                        unite++;
                        dizieme=0;
                        if(unite>9)
                        {
                                dizaine++;
                                unite=0;
                                if(dizaine == 6)
                                {
                                        dizaine = 0;
                                }
                        }
                }
        }
        Afficheur(0,dizaine,0);
        Afficheur(1,unite,1);
        Afficheur(2,dizieme,0);
        Afficheur(3,centieme,0);
}

void Chronometre(int Flag )
{
	if( Flag == 1)
	{
	       ENABLE=0;
               TCCR1B = 0x0A;     	
	}
	else if( Flag == 0)
	{
		TCCR1B = 0x08;
    		ENABLE = 0;
    		dizaine = 0;
      		unite = 0;
        	dizieme = 0;
         	centieme = 0;
         	Afficheur(0,0xEE,1);
                Afficheur(1,0xD2,1);
                Afficheur(2,0x1F,1);
                Afficheur(3,0xA9,1);	
	}
	else if (Flag == 2)
	{
		TCCR1B = 0x08;
    		ENABLE = 0;
    		dizaine = 0;
      		unite = 0;
        	dizieme = 0;
         	centieme = 0;
         	Afficheur(0,dizaine,0);
                Afficheur(1,unite,1);
                Afficheur(2,dizieme,0);
                Afficheur(3,centieme,0);
  	}
} 
	

void main(void)
{
// Input/Output Ports initialization
// Port A 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 
PORTA=0x00;
DDRA=0xFF;

// Port B initialization
// Func7=In Func6=In Func5=In Func4=Out Func3=Out Func2=Out Func1=Out Func0=Out
// State7=T State6=T State5=T State4=0 State3=0 State2=0 State1=0 State0=0
PORTB=0x00;
DDRB=0x1F;

// Port C initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In 
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T 
PORTC=0x00;
DDRC=0x00;

// Port D initialization
// Func7=Out Func6=In Func5=In Func4=In Func3=In Func2=In Func1=Out Func0=In
// State7=1 State6=T State5=T State4=T State3=T State2=T State1=0 State0=T
PORTD=0x80;
DDRD=0x82;
                
// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: Timer 0 Stopped
// Mode: Normal top=FFh
// OC0 output: Disconnected
TCCR0=0x00;
TCNT0=0x00;
OCR0=0x00;

// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: 2000,000 kHz 
// Mode: CTC top=OCR1A
// OC1A output: Toggle
// OC1B output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
TCCR1A=0x40;
TCCR1B=0x0A;
TCNT1H=0x00;
TCNT1L=0x00;
ICR1H=0x00;
ICR1L=0x00;
OCR1AH=0x4E;
OCR1AL=0x20;
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: Offù
// INT2: Off
MCUCR=0x00;
MCUCSR=0x00;

// Timer(s)/Counter(s) Interrupt(s) initialization
TIMSK=0x10;

// USART initialization
// Communication Parameters: 8 Data, 1 Stop, No Parity
// USART Receiver: On
// USART Transmitter: On
// USART Mode: Asynchronous
// USART Baud rate: 9600
UCSRA=0x00;
UCSRB=0x18;
UCSRC=0x86;
UBRRH=0x00;
UBRRL=0x67;

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

// LCD module initialization
lcd_init(16);

#asm("sei")

    while (1)
    {
        int flag; 
    	while( CaptD == 1)
    	{
    	        car=USART_Receive();
    	        if (car == 'D')
    	        {
    		        flag = 2;
    	        }
    	        if (car == 'M')
    	        { 
    	        	if( flag != 3 )
    		        flag = 1;     
    	        }
    	        else if (car == 'A')
    	        {
    		        flag = 0;	
    	        }
    	        Chronometre(flag);
    	}
    	TCCR1B = 0x08;
    	ENABLE=0;
    	flag=3;	
    }
}