#include <mega16.h>
#include <delay.h>
#include <stdio.h>
volatile unsigned long latch=0;
volatile unsigned char output_f=0;
volatile unsigned char temp=0;

// Alphanumeric LCD Module functions
#asm
   .equ __lcd_port=0x18 ;PORTB
#endasm
#include <lcd.h>
typedef unsigned char byte;
byte command_addr;

// External Interrupt 0 service routine
interrupt [EXT_INT0] void ext_int0_isr(void)
{
if(!(PIND&(1<<PIND2)))
{
if(TCCR0==0)                                       //debounce
    {                                       
        TCNT0=0;
                                                //start timer 0
        TCCR0=0x01;                              //clkio/8     
        
        PORTA.0=0; 
          
        PORTC.0=1;
        PORTC.1=1;
        
    }    
    }
}

// External Interrupt 1 service routine
interrupt [EXT_INT1] void ext_int1_isr(void)
{
if(!(PIND&(1<<PIND3)))
{     
if(TCCR0!=0)                                       //debounce
    {
      
                                                   //stop timer
         TCCR0=0;
         latch+=TCNT0;  
         
         PORTA.0=1; 
         
         PORTC.0=0;
         PORTC.1=0;
                                   
         output_f=1;
         
                   
                  }   
}
}

// Timer 0 overflow interrupt service routine
interrupt [TIM0_OVF] void timer0_ovf_isr(void)
{
latch+=0x100;
}

// Declare your global variables here

void output(unsigned long latch)
{ 
output_f=0;

        delay_ms(10);
  
            lcd_init(16);
            lcd_clear();
   
            lcd_gotoxy(0,0);
            lcd_putsf("#Time parameter#"); 
            delay_ms(500);   
            lcd_clear();
            lcd_gotoxy(0,0);   
            command_addr=0b10000000;
            
            temp=latch/10000000;
            lcd_write_byte(command_addr,0x30+temp); 
            latch=latch-temp*10000000;   
            
            temp=latch/1000000;
            lcd_write_byte(command_addr+1,0x30+temp); 
            latch=latch-temp*1000000;   
            
            temp=latch/100000;
            lcd_write_byte(command_addr+2,0x30+temp); 
            latch=latch-temp*100000;   
            
            temp=latch/10000;
            lcd_write_byte(command_addr+3,0x30+temp); 
            latch=latch-temp*10000;   
                                                                                         
            temp=latch/1000;
            lcd_write_byte(command_addr+4,0x30+temp); 
            latch=latch-temp*1000;   
            
            temp=latch/100;
            lcd_write_byte(command_addr+5,0x30+temp); 
            latch=latch-temp*100;   
                
            temp=latch/10;
            lcd_write_byte(command_addr+6,0x30+temp); 
            latch=latch-temp*10;   
            
            temp=latch/1;
            lcd_write_byte(command_addr+7,0x30+temp); 
            latch=latch-temp*1;   
            
        
            }

void main()
{
// Declare your local variables here
//byte command_addr;

PORTA=0xFF;
DDRA=0xFF;

PORTB=0xFF;
DDRB=0x00;

PORTC=0xFF;
DDRC=0xFF;

PORTD=0x00;
DDRD=0x00;

// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: 1000.000 kHz
//TCCR0=0x02;
//TCNT0=0x00;
OCR0=0x00;

MCUCR&=0xf0;
MCUCR|=(1<<ISC11)|(0<<ISC10)|(1<<ISC01)|(0<<ISC00);
GICR|=(1<<INT0)|(1<<INT1);
//TIMSK=0x00;

MCUCSR=0x00;
GIFR=0xC0;

// Timer(s)/Counter(s) Interrupt(s) initialization
TIMSK=0x01;
TIFR=0x00;


PORTC=0x00;

// Global enable interrupts
#asm("sei")
  
while (1)
      {
           
        // Place your code here                            
       if(output_f) output(latch); 
       
      };
}