買了很久的板子了，一直沒時間玩 ，今天搞到03：13，終于靠自己寫出了一個數碼顯示程序，他可以在51hei開發板上輪流顯示數字和字母.

#include<reg52.h>

#define uint unsigned int
#define uchar unsigned char


uchar code table[]={
0x3f,0x06,0x5b,0x4f,
0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,
0x39,0x5e,0x79,0x71};

uchar code we[]={
0xfe,0xfd,0xfb,0xf7,0xef,0xdf};

sbit dula=P2^6;
sbit wela=P2^7;

uchar num,du,num1;

void main()
{ 
//設置計數器
//選取計數方式1
 TMOD = 0x11;
//給計數器寫初值
 TH0 = (65536-10000)/256;
 TL0 = (65536-10000)%256;
////////////////////
//操作單片機
//開啟CPU中斷
 EA = 1;
///////////////////
//開啟定時器T0位中斷
 ET0 = 1;
//開啟計數器
 TR0 = 1;
//操作數碼管
 
 while(1)
  {
   if(du==100)
   {
    du=0;
    num++;       

    if(num<16)
    dula=1;
    P0=table[num];
    dula=0;
    if(num==16) 
     num=0;
 
    if(num1<2)
    wela=1;
    P0=we[num1];
    wela=0;
    num1++; 
    if(num1==2) 
     num1=0;
   }
  }
}

//中斷函數
void time () interrupt 1
{
//自變量自加

TH0 = (65536-10000)/256;
TL0 = (65536-10000)%256;
du++;
}

這個是靜態顯示程序

#include<reg52.h>

#define uint unsigned int
#define uchar unsigned char

sbit dula=P2^6;
sbit wela=P2^7;

uchar cnt;

uchar num;

uchar jf;

uchar code table[]={
0x3f,0x06,0x5b,0x4f,
0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,
0x39,0x5e,0x79,0x71};


void light (uchar num);

void main()
{


//設置計數器

 

//設置工作方式1
 TMOD = 0x11;

 

//給計數器賦初值

 TH0 = 0;
 TL0 = 0;

 

///////////////////
//對單片機操作

//開啟CPU中斷

 EA = 1;
//開啟定時器T0位中斷
 ET0 = 1;


//啟動計數器

 TR0 = 1;

//點亮數碼管。每次+1

 wela=1;
 P0=0xc0;
 wela=0;

 while(1)
 {
  if(cnt<16)
   light(cnt);

  else cnt = 0;
 }
}


void light (uchar num)

{
//  uchar c;
// wela=1;
// P0=0xc0;
// wela=0;

// for(c=1;c<6;c++)
 dula=1;
 P0=table[num];
 dula=0;   
}

//中斷函數

void time () interrupt 1
{
 //變量自加
 if (jf<8)
  {
   jf++;
   TH0 =0;
   TL0 = 0;
  }
 if (jf==8)
  {


   jf=0;
   


           //裝載初值
      
   TH0 = 94;
   TL0 = 224;
  
   //到定值通知主函數
   cnt=cnt+1;
  } 


}