电子钟数码显示

include "reg52.h"
 #include <intrins.h>

typedef unsigned char BYTE;
typedef unsigned int WORD;
typedef bit BOOL ; 
sbit stop_key      = P2^4;
sbit fangxiang_key = P2^5;
sbit jia_key       = P2^6;
sbit jian_key      = P2^7;
sbit L_key    = P2^3;
bit a=0;
bit b=0;
int c=25;
sbit rs = P1^0;
sbit rw = P1^1;
sbit ep = P1^5;
unsigned char code FFW[8]={0xef,0xcf,0xdf,0x9f,0xbf,0x3f,0x7f,0x6f}; //反转
unsigned char code FFZ[8]={0x6f,0x7f,0x3f,0xbf,0x9f,0xdf,0xcf,0xef}; //正转
unsigned int  K, rate;

void delay();

/**********************************************************
                步进电机驱动
***********************************************************/

void delay_dianji(unsigned int t)
{                           
   unsigned int k;

   while(t--)
   {
     for(k=0; k<150; k++)
     { }
   }
}
void  dianji()
 { 
   unsigned char i;
    if(a==0)
  {
  P2=0xff;
  goto pp;}
      for (i=0; i<8; i++)       //一个周期转30度
        {
          if(K==0) P1 = FFW[i]&0xff;
   if(K==0)P2=0x4f;                  //取数据
  if(K==1) P1 = FFZ[i]&0xff;
 if(K==1) P2=0x2f;
   delay_dianji(c);                   //调节转速
        }
pp:;
     } 

/********************************************************
                   延时程序
*********************************************************/

 void delay()   
{