//xxx in put ON OFF xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
#include <mega328.h>
#include <delay.h>   
// Alphanumeric LCD functions
#include <alcd.h>

unsigned char gio = 2, phut = 30, giay = 0;

void ht_thoigian (unsigned char thamso)
{                             
unsigned char chuc, donvi;
      chuc = thamso/10; donvi = thamso%10; 
      lcd_putchar(chuc + 48);
      lcd_putchar(donvi + 48);
}
             
void main(void)
{
// Crystal Oscillator division factor: 1
#pragma optsize-
CLKPR=(1<<CLKPCE);
CLKPR=(0<<CLKPCE) | (0<<CLKPS3) | (0<<CLKPS2) | (0<<CLKPS1) | (0<<CLKPS0);
#ifdef _OPTIMIZE_SIZE_
#pragma optsize+
#endif

//DDRD= 0b0000100;
DDRD.3 = 1; //PD3 la chan output

lcd_init(16);
lcd_putsf("NHOM 4"); 
delay_ms(1000);     
lcd_gotoxy(8,0);
lcd_putsf("02:30:05");
delay_ms(1000);            

while (1)
      { 
        if(gio==2 && phut==30 && giay==5)
        {
            PORTD.3 = 1;
            lcd_gotoxy(0,1);
            lcd_putsf("LED on");
        }  
        if(gio==2 && phut==31 && giay==5)
            PORTD.3 = 0;    
        lcd_gotoxy(8,1);
        ht_thoigian(gio);        
        if(gio==24)
            gio=0;
        lcd_putchar(':');
        ht_thoigian(phut);        
        if(phut==60)
        {
            gio++;      
            phut=0;
        }
        lcd_gotoxy(13,1);
        lcd_putchar(':'); 
        ht_thoigian(giay);   
        if(giay==60)
        {
            phut++;
            giay=0;
        }    
        giay++;  
        delay_ms(1000);
      }
}