菜鸟真心求指导。

只看该作者 · 2012-11-25 11:21

#include <iom16v.h>

#include <macros.h>

#define uchar unsigned char

#define uint unsigned int

uchar num;

#pragma interrupt_handler miao:9

#pragma data:code

const table[]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F,0x77,0x7C,0x39,

0x5E,0x79,0x71};



void delay(uint ms) 

{ 

uint i,j; 

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

for (j=0;j<1141;j++);

}





void show(uchar j,uchar k)



{

PORTA=table[k];

delay(10);

PORTC=table[j];

delay(10);

}





void miao (void) 

{

uchar a,b;

TCNT1H=0X85;

TCNT1L=0XED;

a=num%10;

b=num/10;

show(a,b);



}



void main(void)

{

uint pre=0,cur=0;

uchar j=0,k=0;

DDRD=0x00;

DDRA=0xff;

DDRC=0xff;

TCCR1B=0X04;

TCNT1H=0X85;

TCNT1L=0XED;

TIMSK|=BIT(2);

SREG|=BIT(7);

show(j,k);

delay(10);

while(1)

{

cur = PIND&0x01;

if(pre&(cur^pre)) num++;

delay(1);

pre=cur;

}

}