sda.txt

简单的时钟程序大家需要的

#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
uchar xingqi,nian,yue,ri,xiaoshi,miao;
uchar dd;
uchar x,y,c;
sbit clk=P1^0;
sbit dat=P1^1;
sbit rst=P1^2;
sbit A0=ACC^0;
sbit A1=ACC^1;
sbit A2=ACC^2;
sbit A3=ACC^3;
sbit A4=ACC^4;
sbit A5=ACC^5;
sbit A6=ACC^6;
sbit A7=ACC^7;
sbit p30=P3^0;
sbit p31=P3^1;
sbit p32=P3^2;
sbit p33=P3^3;
sbit p34=P3^4;
sbit p35=P3^5;
sbit p36=P3^6;
sbit p37=P3^7;
sbit date=P2^0;    //max7219
sbit load=P2^1; 
sbit clkk=P2^2;   //max7219

uchar bdata bitmsb;
sbit m7=bitmsb^7;

bit flag=0;
uchar code tabc[]={0x7e,0x30,0x6d,0x79,0x33,0x5b,0x5f,0x70,0x7f,0x7b};
uchar code taba[]={0xff,0xf9,0xA4,0xb0,0x99,0x92,0x82,0xf8};
uchar code tab1[]={0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,
                   0x08,0x09,0x10,0x11,0x12,0x13,0x14,0x15,  
                   0x16,0x17,0x18,0x19,0x20,0x21,0x22,0x23,
                   0x24,0x25,0x26,0x27,0x28,0x29,0x30,0x31, 
                   0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,
                   0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x47,
                   0x48,0x49,0x50,0x51,0x52,0x53,0x54,0x55,
                   0x56,0x57,0x58,0x59,0x60};
				   
void send(void)
{
   uchar i;
   uchar count;
   bitmsb=x;
   for(count=0;count<8;count++)
     {
	    if(m7)
		   {
		     clkk=0;
			 date=1;
		    for(i=0;i<1;i++);//延时
			 clkk=1;
			 }
		else
		    {
			   clkk=0;
			   date=0;
			   for(i=0;i<1;i++);
			   clkk=1;
			   }
		     bitmsb<<=1;
	   }
 }

 void  wr(void)
 {
   load=0;
   send();
   x=y;
   send();
   load=1;
 }

 void ready(void)
 {
   x=0xfb;
   y=0x07;
   wr();
   x=0xf9;
   y=0x00;
   wr();
   x=0xfa;
   y=0x0c;
   wr();
   x=0xfc;
   y=0x01;
   wr();
}

void inputbyte(uchar dd)
  {
    uchar i;
     ACC=dd;
     for(i=8;i>0;i--)
     {
     dat=A0;  //dat=(bit)(ACC&0x01);不能用这样的语句
      clk=1;
      clk=0;
      ACC=ACC>>=1;  

      }
   }

void outputbyte(void)
  {
    uchar i;
    dat=1;
    for(i=8;i>0;i--)
     {
       ACC=ACC>>=1;  //⒂乙埔晃桓持?
       A7=dat;   //dat=p1.1,先读出的是低位数据
       clk=1;
       clk=0;
      }
       dd=ACC;
   }


void write(uchar addr,uchar num)
    {
      rst=0;
      clk=0;
      rst=1;
      inputbyte(addr);
      inputbyte(num);
      clk=1;
      rst=0;
     }

void read(uchar addr)
    {
   rst=0;
     clk=0;
     rst=1;
     inputbyte(addr);
     outputbyte();
     clk=1;
     rst=0;
     }

void panduan(int m,int n)
    {
     if((n%2!=0&&n<=7)||(n%2==0&&n>7))
     {if(ri>=32)
           ri=1;
    }
     else if(n==2&&m%4==0&&m%100!=0)
     {if(ri>=30)
           ri=1;
      }
     else if(n==2)
      {if(ri>=29)
           ri=1;
       }
     else
        {if(ri>=31)
           ri=1;
        }
   }



void  main(void)
   {
    uchar  i,a=1;
    uchar  fen1,fen2,fen3,fen4;
    P3=0xff;
	ready();
    c=1;
	 x=1;
	 for(i=0;i<9;i++)
	   { 
		y=tabc[i];
		x=c;
		wr();
		c++;
		for(i=0;i<200;i++);
      for(i=0;i<200;i++);
      for(i=0;i<200;i++);
      for(i=0;i<200;i++);

        }
    write(0x8e,0x00);//允许写
    write(0x80,0x00); //秒
    write(0x82,0x10);//分
    write(0x84,0x16); //时
    write(0x86,0x08); // 天
    write(0x88,0x12);//
    write(0x8c,0x08);//年
    write(0x8a,0x05);

  while(1)
    {
      for(i=0;i<200;i++);
      for(i=0;i<200;i++);
      for(i=0;i<200;i++);
      for(i=0;i<200;i++);


      read(0x8b);
      xingqi=dd;
		  
     P0=taba[xingqi];
        if(p30==0)
        if(flag)
        {
          read(0x8b);
          xingqi=dd;
          xingqi++;
          if(xingqi>=8)
           xingqi=1;
          write(0x8a,xingqi);
           while(p30==0);
         }

         read(0x85);
          fen1=dd;
          fen2=fen1&0x0f;
          fen3=fen1&0xf0;
          fen3=fen3>>=4;
          xiaoshi=fen3*10+fen2; 
		  y=tabc[fen3];x=1;wr();
		  y=tabc[fen2];x=2;wr();
		  y=0x01,x=3;wr();
		 if(p34==0)
        if(flag)
         {
          xiaoshi++;
          if(xiaoshi>=24)
           xiaoshi=0;
          write(0x84,tab1[xiaoshi]);
           while(p34==0);
         }

          read(0x83);
          fen1=dd;
          fen2=fen1&0x0f;
          fen3=fen1&0xf0;
          fen3=fen3>>=4;
          fen4=fen3*10+fen2;
		  y=tabc[fen3];x=4;wr();
		  y=tabc[fen2];x=5;wr();
		  y=0x01,x=6;wr();
		if(p35==0)
        if(flag)
         {
          fen4++;
          if(fen4>=60)
           fen4=0;
          write(0x82,tab1[fen4]);
           while(p35==0);
         } 
             
          read(0x81);
          fen1=dd;
          fen2=fen1&0x0f;
          fen3=fen1&0xf0;
          miao=fen3>>=4;
		  y=tabc[fen3];x=7;wr();
		  y=tabc[fen2];x=8;wr();

         if(p36!=a)
		 { read(0x8d);
          fen1=dd;
          fen2=fen1&0x0f;
          fen3=fen1&0xf0;
          fen3=fen3>>=4;
          nian=fen3*10+fen2;
		  y=tabc[fen3];x=7;wr();
		  y=tabc[fen2];x=8;wr();
		  y=0x01,x=6;wr();
		if(p31==0)
        if(flag)
         {

          nian++;
          if(nian>=31)
           nian=8;
          write(0x8c,tab1[nian]);
	  
           while(p31==0);
         }

         
          read(0x89);
          fen1=dd;
          fen2=fen1&0x0f;
          fen3=fen1&0xf0;
          fen3=fen3>>=4;
         yue=fen3*10+fen2;
		 y=tabc[fen3];x=4;wr();
		 y=tabc[fen2];x=5;wr();
		 y=0x01,x=3;wr();
		if(p32==0)
        if(flag)
         {
          yue++;
          if(yue>=13)
           yue=1;
          write(0x88,tab1[yue]);

           while(p32==0);
         }


          
          read(0x87);
          fen1=dd;
          fen2=fen1&0x0f;
          fen3=fen1&0xf0;
          fen3=fen3>>=4;
          ri=fen3*10+fen2;
		  y=tabc[fen3];x=1;wr();
		  y=tabc[fen2];x=2;wr();
        if(p33==0)
        if(flag)
         {
          ri++;
          panduan(nian,yue);
          write(0x86,tab1[ri]);
           while(p33==0);
         }
         
          a=0;
		  }
		  else a=1;

            if(p37==0)
             { 
		      
              flag=~flag;
               if (flag)   //加了分号。总是提示句法错误（syntax）
               write(0x80,0x80);
               else
               write(0x80,0x00);
			   while(p37==0);
              }
          
     }
}