這是程序內容

Main

#include <reg52.h>

#include "lcd1602.h"

#include "ds1302.h"

uchar phase; //電機4相的變換

uchar second ; //時間的計數

uchar change ; //設置電機轉速的中斷標志

uchar state ; //中斷源的選擇狀態

uchar speed=40 ; //電機初始的速度

uchar speed_up,slow_down; //電機的加速與減速

uchar mot_spee1[]={" The Speed is "};

uchar mot_spee2[]={" 000 r/min "};

// uchar four_single[]={0x01,0x02,0x04,0x08}; //單4拍模式

uchar four_double[]={0x0c,0x06,0x03,0x09}; //雙4拍模式

void init_break()                                                          //中斷初始化函數

{

       TMOD=0x11;

       TH0=0x00;

       TL0=0x00;

       TH1=(65536-5000)/256;                                               //定時5ms

       TL1=(65536-5000)%256;

       ET0=1;

       ET1=1;

       IT0=1;

       EX0=1;

       IT1=1;

       EX1=1;

       EA=1;

       TR0=1;

       TR1=1;

}

void main()

{

       init_break();

       lcd_init();

       set_time();

       while(1)

       {

              read_time();

              display();

       }

}

void int0()interrupt 0

{

       state=P1;

}

void int1()interrupt 2

{    

uchar value  ;                                                               //電機的轉速

       value=60000000/(second*65536+TH0*256+TL0)+1;

       second=0;      

       TH0=0x00;

       TL0=0x00;

       mot_spee2[4]=value/100+'0';

       mot_spee2[5]=value%100/10+'0';

       mot_spee2[6]=value%100%10+'0';

}

void timer()interrupt 1

{    

       second++;

}

void timer1()interrupt 3

{

       TH1=(65536-5000)/256;                                               //定時5ms

       TL1=(65536-5000)%256;

       change++;

       if(change>=speed)

       {    

              change=0;

              P2=four_double[phase];                                  //電機以雙4拍的模式轉動

       //     P2=single_four[phase];                                   //電機以單4拍的模式轉動

              phase=++phase&0x03;

       }

}

Ds1302

      #include<reg52.h>

#include<intrins.h>

#include "ds1302.h"

extern uchar clk_xian1[];                                                       //存放時鐘的數據

extern uchar clk_xian2[];

uchar time[]       ={12,3,28,17,46,30};

uchar write_add[]  ={0x8c,0x88,0x86,0x84,0x82,0x80};  //年月日時分秒的地址（寫）

uchar read_add []  ={0x8d,0x89,0x87,0x85,0x83,0x81};  //年月日時分秒的地址（讀）

void write_byte(uchar dat)

{

       uchar i;

       for(i=0;i<8;i++)

       {

              clk=0;

              io=dat&0x01;                                                    

              dat=dat>>1;                                                            //從數據的低位開始寫

              clk=1;

       }

}

void write(uchar add,uchar date)

{

       rst=0;

       _nop_();

       clk=0;

       _nop_();

       rst=1;

       _nop_();

       write_byte(add);

       write_byte(date);

       rst=0;

       _nop_();

       clk=1;

       io=1;

}

uchar read(uchar addr)

{

       uchar i,temp;

       rst=0;

_nop_();

       clk=0;

       _nop_();

       rst=1;

       _nop_();

       write_byte(addr);

       for(i=0;i<8;i++)

       {

              clk=0;

              temp=temp>>1;

              if(io)

                     temp=temp|0x80;

              clk=1;    

       }

       rst=0;

       _nop_();

//     clk=0;

       _nop_();

//     clk=1;

       _nop_();

//     io=0;

       _nop_();

       io=1;

       return temp;

}

void set_time()

{    

        uchar i,j;

        for(i=0;i<6;i++)                                                            

        {

              j=time/10;                                                            //數據轉換成BCD碼

void read_time()

{

uchar i;

for(i=0;i<6;i++)

{

time=read(read_add);

Lcd1632

       #include<reg52.h>

#include"lcd1602.h"

extern uchar state ;

extern uchar speed ;                                       //電機初始的速度

extern uchar speed_up,slow_down;                          //電機的加速與減速

extern uchar mot_spee1[];

extern uchar mot_spee2[];

uchar *t1,*t2;                                                                      //換屏顯示

uchar clk_xian1[]="Date: 00-00-00  ";                                 //初始時鐘

uchar clk_xian2[]="Time: 00:00:00  ";

void delay(uchar i)

{

       uchar j,m;

       for(j=0;j<=i;j++)

              for(m=0;m<50;m++);

}

void write_com(uchar com)

{

       rs=0;

       rw=0;

       P0=com;

       delay(5);

       e=1;

       delay(5);

       e=0;

}

void write_data(uchar date)

{

       rs=1;

       rw=0;

       P0=date;

       delay(5);

       e=1;

       delay(5);

       e=0;

}

void lcd_init()

{    

       write_com(0x38);

       write_com(0x06);

       write_com(0x0c);  

       write_com(0x01);

}

void basic_display()

{

       uchar i;

       write_com(0x80);

       for(i=0;*t1!=0;i++)

       {

              write_data(*t1);

              t1++;

       }

       write_com(0xc0);

       for(i=0;*t2!=0;i++)

       {

              write_data(*t2);

              t2++;

       }

}       

void display()                                                 

{

       switch(state)

       {

              case 0:  t1=&mot_spee1; t2=&mot_spee2;  break;

              case 1:  t1=&clk_xian1; t2=&clk_xian2;  break;

              case 2:     speed_up   =1;   state=0;        break;

              case 3:     slow_down  =1;  state=0;        break;

       }

       if(speed_up)                                                                       //電機的加速處理

       {

              speed--;

              speed_up=0;

       }

       if(slow_down)                                                                         //電機的減速處理

       {

              speed++;

              slow_down=0;

       }

       basic_display();

}