#include<avr/io.h>
#define uchar unsigned char
#define uint unsigned int
uchar num;
uchar a[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0xff};
void delay(uint i)
{
 uint x,j;
 for (x=i+33;x!=0;x--)
    {
	 for (j=65535;j!=0;j--);
	}

}
void display(uchar i)
{
	i=num;
	PORTC=a[i];
	PORTA=0xfe;
	delay(1);
}
void keyscan()
{
	while((PIND&0X01)==0)  num=1;
	while((PIND&0X02)==0)  num=2;
	while((PIND&0X04)==0)  num=3;
	while((PIND&0X08)==0)  num=4;
	while((PIND&0X10)==0)  num=5;
	while((PIND&0X20)==0)  num=6;
	while((PIND&0X40)==0)  num=7;
	while((PIND&0X80)==0)  num=8;
	
}
int main()
{

	DDRC=0XFF;
	DDRA=0XFF;
	PORTC=0x00;
	PORTA=0X00;
	DDRD=0x00;
	delay(1);
	while(1)
	{
		keyscan();
		display(num);

	}

}