#include <mega16.h>

#include <delay.h>

#asm

.equ __lcd_port=0x12;PORTD

#endasm

#include <lcd.h>

#include <stdio.h>

flash unsigned char keypad [16]={0xee,0xed,0xeb,0xe7,0xde,0xdd,0xd7,0xbe,0xbd,0xbb,0xb7,0x7e,0x7d,0x7b,0x77};

flash unsigned char menu [16]={1,2,3,50,4,5,6,60,7,8,9,70,80,0,90,100};



int s,m,h;

char str[20];

unsigned char key,i,a,b;

unsigned char getkbd (void){

DDRA=0x0f;

PORTA=0xf0;

delay_us(10);

key=PINA;

DDRA=0xf0;

PORTA=0x0f;

delay_us(10);

key=key | PINA ;

delay_ms(5);

for (i=0;i<16;i++)

if (keypad[i]==key) break;

return i ;

}

interrupt [TIM2_OVF] void z(void)

{

s++;

}

void main(void)

{

TCCR2=0X05;

TCNT2=0;

ASSR=0X08;//MOSHAKH KARDANE MANBBA CLOCK AZ PAYEHAYE 28 29

// AGAE KHASTWE BASHIM VAGHFE RO FAAL KONIM

TIMSK=0X40; //VAGHFE SSAR RIZ TIMER 2

#asm ("sei") // faal sazi vaghfe omumi



lcd_init(16);

lcd_clear();

lcd_putsf ("avr");

delay_ms(1000);

lcd_clear();

while (1){

a=getkbd();

if (a<16){

if( menu[a]==80)

{lcd_clear();

lcd_putsf("menu");

delay_ms(1000);

lcd_clear();

}}

if (s>59)

{s=0;

m++;

}

if (m>59){

m=0;

h++;

}

if (h>23) h=0;



sprintf (str,"TIME:%02d:%02d:%02d",h,m,s);

lcd_gotoxy (0,0);

lcd_puts(str);

}

}