自己做的简易计算器，一路不是那么轻松，有视频，有代码。。

恋May · 发表于 2011-8-16 15:27:25

http://#include /* common defines and macros */http://player.youku.com/player.php/sid/XMjk1MjQ2NzIw/v.swf

#include <hidef.h>    /* common defines and macros */
#include "derivative.h"    /* derivative-specific definitions */
uchar smg[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x00};//数码管编码0~ 9
int i=0,j=0,k=0,l=0,m=0,n=0,shuju=0,p=0,num=0,flag=4;
int i1=0,j1=0,l1=0,k1=1,m1=0,m2=0;
int t0=0,t1=0,t2=0,t3=0,a1=0,a2=0,a3=0,a4=0,s1=0,s2=0,s3=0,flag2=0;
void delay(uchar t)
{
while (t--)
{;}
}
void display(uchar z){
PORTA=0XFF;
DDRA=smg[z];
}
void xianshi(int sj) {

   PTT=0X00;
   PERT=0X00;
   m=sj%1000;
   n=m%100;
   p=n%10;
   l=p;
   k=n/10;
   j=m/100;
   i=sj/1000;
   DDRT=0X01;
         display(i);
      delay(500);
      display(10);  //去残影。
      DDRT=0x02;
      display(j);
      delay(500);
      display(10);
   DDRT=0x04;
      display(k);
      delay(500);
      display(10);
   DDRT=0x08;
      display(l);
      delay(500);
      display(10);
}

  void miaozhong(void) {
// int i=0,j=0;
  PTT=0X00;
  PERT=0X00;
  DDRT=0x08;
  display(i1);
  for(m1=0;m1<10;m1++) {

  for(l1=0;l1<10;l1++) {

      for(k1=0;k1<6;k1++){
      for(i1=0;i1<10;i1++){
            for(j1=0;j1<680;j1++){
  DDRT=0x00;
display(10);
delay(50);
DDRT=0x01;
display(m1);
delay(500);
display(10);
   DDRT=0x00;
display(10);
delay(50);
DDRT=0x02;
  display(l1);
delay(500);
   DDRT=0x00;
display(10);
delay(50);
   DDRT=0x04;
display(k1);
delay(500);
display(10);
   DDRT=0x00;
display(10);
delay(50);
DDRT=0x08;
  display(i1);
delay(500);
DDRT=0x00;
display(10);
delay(50);
// num=0;
flag=0;
m2=key();
if(flag!=0)
break;
}
if(flag!=0)
break;
}
if(flag!=0)
break;
  }
  if(flag!=0)
break;

  }
  if(flag!=0)
break;
  }
  if(flag!=0) {
// if(flag!=0){
l=0;k=0;j=0;i=0;flag=0;
  }
  }

void xianshi2(int sj)
{
  void xianshi3(int a1,int a2,int a3,int a4);
  void miaozhong();
//if(flag!=0){
   switch(sj){
   case 0:if(flag!=0){t0=l;l=sj;t1=k;k=t0;t2=j;j=t1;i=t2;flag=0;}xianshi3(l,k,j,i);break;
   case 1:if(flag!=0){t0=l;l=sj;t1=k;k=t0;t2=j;j=t1;i=t2;flag=0;}xianshi3(l,k,j,i);break;
   case 2:if(flag!=0){t0=l;l=sj;t1=k;k=t0;t2=j;j=t1;i=t2;flag=0;}xianshi3(l,k,j,i);break;
   case 3:if(flag!=0){t0=l;l=sj;t1=k;k=t0;t2=j;j=t1;i=t2;flag=0;}xianshi3(l,k,j,i);break;
   case 4:if(flag!=0){t0=l;l=sj;t1=k;k=t0;t2=j;j=t1;i=t2;flag=0;}xianshi3(l,k,j,i);break;
   case 5:if(flag!=0){t0=l;l=sj;t1=k;k=t0;t2=j;j=t1;i=t2;flag=0;}xianshi3(l,k,j,i);break;
   case 6:if(flag!=0){t0=l;l=sj;t1=k;k=t0;t2=j;j=t1;i=t2;flag=0;}xianshi3(l,k,j,i);break;
   case 7:if(flag!=0){t0=l;l=sj;t1=k;k=t0;t2=j;j=t1;i=t2;flag=0;}xianshi3(l,k,j,i);break;
   case 8:if(flag!=0){t0=l;l=sj;t1=k;k=t0;t2=j;j=t1;i=t2;flag=0;}xianshi3(l,k,j,i);break;
   case 9:if(flag!=0){t0=l;l=sj;t1=k;k=t0;t2=j;j=t1;i=t2;flag=0;}xianshi3(l,k,j,i);break;
   case 111:if(flag!=0){
   s1=i*1000+j*100+k*10+l;
   l=0;k=0;j=0;i=0;flag=0;flag2=1;}xianshi3(l,k,j,i);break;
   case 112:
   if(flag!=0){
   s1=i*1000+j*100+k*10+l;
   l=0;k=0;j=0;i=0;flag=0;flag2=2;}xianshi3(l,k,j,i);break;
   case 113:
   if(flag!=0){
   s1=i*1000+j*100+k*10+l;
   l=0;k=0;j=0;i=0;flag=0;flag2=3;}xianshi3(l,k,j,i);break;
   case 114:miaozhong();break;
   case 115:if(flag!=0){l=0;k=0;j=0;i=0;flag=0;}xianshi3(l,k,j,i);break;
   case 116:if(flag!=0){
      switch(flag2){
      case 1:
   s2=i*1000+j*100+k*10+l;
   s3=s1+s2;
   m=s3%1000;
   n=m%100;
   p=n%10;
   l=p;
   k=n/10;
   j=m/100;
   i=sj/1000;break;
      case 2:
      s2=i*1000+j*100+k*10+l;
   s3=s1*s2;
   m=s3%1000;
   n=m%100;
   p=n%10;
   l=p;
   k=n/10;
   j=m/100;
   i=sj/1000;break;
      case 3:
      s2=i*1000+j*100+k*10+l;
   s3=s1-s2;
   m=s3%1000;
   n=m%100;
   p=n%10;
   l=p;
   k=n/10;
   j=m/100;
   i=sj/1000;break;

      }

   flag=0;flag2=0;}xianshi3(l,k,j,i);break;
  //  }

// t0=l;l=sj;t1=k;k=t0;t2=j;j=t1;i=t2;flag=0;

}
  }

void xianshi3(int a1,int a2,int a3,int a4)
{
   DDRT=0X01;
         display(a4);
      delay(5000);
      display(10);  //去残影。
      DDRT=0x02;
      display(a3);
      delay(5000);
      display(10);
   DDRT=0x04;
      display(a2);
      delay(5000);
      display(10);
   DDRT=0x08;
      display(a1);
      delay(5000);
      display(10);}

int key(void) {
   int readkey;
   int x_temp,y_temp;
   DDRB=0X0f;
   PUCR_PUPBE=1;
   PORTB=0Xf0;
   if(PORTB!=0xf0) {
   delay(1000);
   if(PORTB!=0xf0) {
      PORTB&=0xf0;
      x_temp=PORTB;
      DDRB=0Xf0;
      PORTB=0X0f;
   // if(PORTB!=0x0f){
      PORTB&=0X0f;
      y_temp=PORTB;
      readkey=(x_temp|y_temp);
      PORTB=0X0F;
      while(PORTB!=0X0F) {
      delay(1000);
      while(PORTB!=0X0F){
            switch(readkey) {
            case 0xee:num=1;break;  //1
            case 0xde:num=2;break;
            case 0xbe:num=3;break;
            case 0x7e:num=111;break;
            case 0xed:num=4;break;
            case 0xdd:num=5;break;
            case 0xbd:num=6;break;
            case 0x7d:num=112;break;
            case 0xeb:num=7;break;
            case 0xdb:num=8;break;
            case 0xbb:num=9;break;
            case 0x7b:num=113;break;
            case 0xe7:num=0;break;
            case 0xd7:num=115;break;
            case 0xb7:num=116;break;
            case 0x77:num=114;break;

         }
//       }
      }
      }
      }flag=5;
   }

   return num;
   }

void main() {
   PORTB=0x00;
//  void  xianshi3(a1,a2,a3,a4);
// void xianshi2( sj);
   EnableInterrupts;
   for(;;) {
      shuju=key();
      xianshi2(shuju);

   }
}