#include <tiny2313.h>
#include <delay.h>
// Declare your global variables here
void main(void)
{
int SEGMENT[10]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6 F};
int n =20;
int YEKAN;
int DAHGAN;
// Input/Output Ports initialization
// Port A initialization
// Function: Bit2=In Bit1=In Bit0=In
DDRA=(0<<DDA2) | (0<<DDA1) | (0<<DDA0);
// State: Bit2=T Bit1=T Bit0=T
PORTA=(0<<PORTA2) | (0<<PORTA1) | (0<<PORTA0);
// Port B initialization
// Function: Bit7=Out Bit6=Out Bit5=Out Bit4=Out Bit3=Out Bit2=Out Bit1=Out Bit0=Out
DDRB=(1<<DDB7) | (1<<DDB6) | (1<<DDB5) | (1<<DDB4) | (1<<DDB3) | (1<<DDB2) | (1<<DDB1) | (1<<DDB0);
// State: Bit7=0 Bit6=0 Bit5=0 Bit4=0 Bit3=0 Bit2=0 Bit1=0 Bit0=0
PORTB=(0<<PORTB7) | (0<<PORTB6) | (0<<PORTB5) | (0<<PORTB4) | (0<<PORTB3) | (0<<PORTB2) | (1<<PORTB1) | (1<<PORTB0);
// Port D initialization
// Function: Bit6=In Bit5=In Bit4=In Bit3=In Bit2=In Bit1=Out Bit0=Out
DDRD=(1<<DDD6) | (1<<DDD5) | (1<<DDD4) | (1<<DDD3) | (1<<DDD2) | (1<<DDD1) | (1<<DDD0);
// State: Bit6=T Bit5=T Bit4=T Bit3=T Bit2=T Bit1=0 Bit0=0
PORTD=(0<<PORTD6) | (0<<PORTD5) | (0<<PORTD4) | (1<<PORTD3) | (1<<PORTD2) | (0<<PORTD1) | (0<<PORTD0);
while (1)
{
if(PIND.5==0)
{ n--;
}
{
if(PIND.3==0)
{
n=n+10;
}
while(PIND.3==0)
{}
}
YEKAN = n % 10;
DAHGAN = (n / 10)%10;
//////////////////////////////////
PORTD.0=0;
PORTD.1=1;
PORTB = SEGMENT[DAHGAN];
delay_ms(18);
/////////////////////////////////
PORTD.0=1;
PORTD.1=0;
PORTB = SEGMENT[YEKAN];
delay_ms(18);
}
}