# include "STC12C5A.H"
    # include "stdio.h"
   
    #define  uint   unsigned int
 
    #define  FOSC     11059200L
    #define  SETTIME  1   

    sbit  start=P0^0;
    sbit  eoc=P0^1;
    sbit  oe=P0^2;
    sbit  clk=P0^3;

    sbit  gewei=P3^5  ;
    sbit  shiwei=P3^4  ;
    sbit  baiwei=P3^3  ;
    sbit  qianwei=P3^2  ;
    sbit  wanwei=P3^1  ;
    sbit  shiwanwei=P3^0  ;

    char  shuzi[6]={0x00};
    char  gongyang[11]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff};
    char  gongying[11]={0x00};
  
    long  counttimes=0;


void  delay_ms(unsigned int m )  //  延时程序
{
  uint i,j;
  for(i=0;i<m;i++)
  for(j=0;j<111;j++);
}

void  zijian()         //自检程序
{
  P3=0XFF;
  P2=gongyang[8];  //^0xff;
  delay_ms(1000);
  P2=gongyang[10];   //^0xff;
  delay_ms(1000);
  P3=0X00;
}

void  timer_init()      //定时器初始化
{
  TMOD=TMOD&0xf0|0x01;
  TL0= (65536-SETTIME*FOSC/12000)%256;
  TH0= (65536-SETTIME*FOSC/12000)/256;
  TR0=1;
}


void  inter_init()    //中断初始化
{
  ET0=1;
  EA=1;

}


void  timer0_inter()  interrupt 1    //定时器0中断函数
{
  
  TL0= (65536-SETTIME*FOSC/12000)%256;
  TH0= (65536-SETTIME*FOSC/12000)/256;

  clk=!clk;

  counttimes++;
  }







   void  main()
   {
     char  c,jishu=0;
     unsigned int rtadc;
 
         

      timer_init();
     inter_init();

        start=0;

        start=1;

        start=0;

    while(1)
   {    rtadc=0;

        
        if(eoc==1)
         {        
        oe=1;
        rtadc=P1;
        rtadc=rtadc*100/51;//这一句和后面3句都不明白求解析
        
        shuzi[2]=rtadc/100;
        shuzi[1]=rtadc%100/10;
        shuzi[0]=rtadc%100%10;
        
        start=0;
 
        start=1;
   
        start=0;

        }

  
         P3=0X00;
         gewei=1;
         c=shuzi[0];     
         P2=gongyang[c];
         delay_ms(4);

         P3=0X00;
         shiwei=1;
         P2=gongyang[shuzi[1]];
         delay_ms(4);

         P3=0X00;
         baiwei=1;         
         P2=gongyang[shuzi[2]]&0x7f;
         delay_ms(4);

         P3=0X00;
         qianwei=1;
         P2=gongyang[shuzi[3]];
         delay_ms(4);

         P3=0X00;
         wanwei=1;         
         P2=gongyang[shuzi[4]];
         delay_ms(4);

         P3=0X00;
         shiwanwei=1;
         P2=gongyang[shuzi[5]];
         delay_ms(4);
   
   
       }  

      }