C51 COMPILER V8.02   0                                                                     07/12/2010 12:11:04 PAGE 1   


C51 COMPILER V8.02, COMPILATION OF MODULE 0
OBJECT MODULE PLACED IN 0.OBJ
COMPILER INVOKED BY: D:\´¦ÀíÈí¼þ\keil\C51\BIN\C51.EXE 0.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          /***************************************************************
   2                                                  ¡°ÌìÏéµç×Ó¡±            ÇãÇé·îÏ×
   3                                                                  www.txmcu.com
   4                                                                  www.txmcu.cn
   5          *****************************************************************
   6          ³ÌÐò¹¦ÄÜ£º  ÏòIIC×ÜÏßÆ÷¼þ24c02EEPROMÖеØַΪ0µÄ´æ´¢µ¥ÔªÖÐдÈëÊý¾Ý0xaa
   7                                  ²¢½«Æä¶Á³ö²¢ËÍÈëP1¿Ú£¬¿É¹Û²ìµ½P1¿ÚÏàÁ¬µÄLED½»Ìæ±»µãÁÁ¡£
   8                                  Ö÷ҪΪÁËÁ·Ï°IIC×ÜÏßµÄÇý¶¯³ÌÐòÒÔ¼°24C02µÄ²Ù×÷·½·¨¡£
   9          ***************************************************************/
  10          //ÊÔÑéAT24C02EEPROMоƬ³ÌÐò
  11          #include<reg51.h>
  12          #include <intrins.h>
  13          #define uint unsigned int
  14          #define uchar unsigned char
  15          sbit sda=P2^0;                          //IO¿Ú¶¨Òå
  16          sbit scl=P2^1;
  17          
  18          //´ËΪ´ýдÈë24c02µÄÊý¾Ý¡£ÎªÁ˱ãÓÚÑéÖ¤½á¹û£¬Êý×éµÄÄÚÈÝΪÖÜÆÚÖظ´µÄ¡£
  19          char code music[] = {
  20          0x55,0xaa,0x0f,0xf0,0x55,0xaa,0x0f,0xf0,0x55,0xaa,0x0f,0xf0,
  21          0x55,0xaa,0x0f,0xf0,0x55,0xaa,0x0f,0xf0,0x55,0xaa,0x0f,0xf0,
  22          0x55,0xaa,0x0f,0xf0,0x55,0xaa,0x0f,0xf0,0x55,0xaa,0x0f,0xf0,
  23          0x55,0xaa,0x0f,0xf0,0x55,0xaa,0x0f,0xf0,0x55,0xaa,0x0f,0xf0,
  24          0x55,0xaa,0x0f,0xf0,0x55,0xaa,0x0f,0xf0,0x55,0xaa,0x0f,0xf0
  25          };       //ÓÉÓÚ×îºó»¹Òª½²ÕâЩÊý¾Ý¶Á³öË͵½P1¿Ú£¬¹Ê¿É·¢ÏÖP1¿ÚÏàÁ¬µÄledÓйæÂɵØÉÁ˸15¸öÖÜÆÚ
  26          
  27          uchar data buffer[100]; //ÓÃÓÚ»º´æ´Ó24c02ÖжÁÈ¡µÄÊý¾Ý¡£
  28                                           
  29          delay(unsigned int m)
  30          {
  31   1              unsigned int n,p;
  32   1              for(n=m;n>0;n--)
  33   1                      for(p=125;p>0;p--);
  34   1      }
  35          void nop()
  36          {
  37   1              _nop_();
  38   1              _nop_();
  39   1      }
  40          /////////24C02¶ÁдÇý¶¯³ÌÐò////////////////////
  41          void delay1(unsigned int m)
  42          {       unsigned int n;
  43   1              for(n=0;n<m;n++);
  44   1      }
  45          
  46          void init()  //24c02³õʼ»¯×Ó³ÌÐò
  47          {
  48   1              scl=1;
  49   1              nop();
  50   1              sda=1;
  51   1              nop();
  52   1      }
  53          
  54          void start()        //Æô¶¯I2C×ÜÏß
  55          {
C51 COMPILER V8.02   0                                                                     07/12/2010 12:11:04 PAGE 2   

  56   1              sda=1;
  57   1              nop();
  58   1              scl=1;
  59   1              nop();
  60   1              sda=0;
  61   1              nop();
  62   1              scl=0;
  63   1              nop();
  64   1      }
  65          
  66          void stop()         //Í£Ö¹I2C×ÜÏß
  67          {
  68   1              sda=0;
  69   1              nop();
  70   1              scl=1;
  71   1              nop();
  72   1              sda=1;
  73   1              nop();
  74   1      }
  75          
  76          void writebyte(unsigned char j)  //дһ¸ö×Ö½Ú
  77          {
  78   1              unsigned char i,temp;
  79   1              temp=j;
  80   1              for (i=0;i<8;i++)
  81   1         {
  82   2                 temp=temp<<1;
  83   2                 scl=0;
  84   2                 nop();
  85   2                 sda=CY;              //temp×óÒÆʱ£¬ÒƳöµÄÖµ·ÅÈëÁËCYÖÐ
  86   2                 nop();
  87   2                 scl=1;               //´ýsdaÏßÉϵÄÊý¾ÝÎȶ¨ºó£¬½«sclÀ­¸ß
  88   2                 nop();
  89   2         }
  90   1         scl=0;
  91   1         nop();
  92   1         sda=1;
  93   1         nop();
  94   1      }
  95          
  96          unsigned char readbyte()   //¶ÁÒ»¸ö×Ö½Ú
  97          {
  98   1         unsigned char i,j,k=0;
  99   1         scl=0; nop(); sda=1;
 100   1         for (i=0;i<8;i++)
 101   1         {  
 102   2                      nop(); scl=1; nop();
 103   2              if(sda==1) 
 104   2                      j=1;
 105   2              else
 106   2                      j=0;
 107   2              k=(k<<1)|j;
 108   2                      scl=0;
 109   2              }
 110   1              nop();
 111   1              return(k);
 112   1      }
 113          
 114          void clock()         //I2C×ÜÏßʱÖÓ
 115          {
 116   1         unsigned char i=0;
 117   1         scl=1;
C51 COMPILER V8.02   0                                                                     07/12/2010 12:11:04 PAGE 3   

 118   1         nop();
 119   1         while((sda==1)&&(i<255))
 120   1                i++;
 121   1         scl=0;
 122   1         nop();
 123   1      }
 124          
 125          ////////´Ó24c02µÄµØÖ·addressÖжÁÈ¡Ò»¸ö×Ö½ÚÊý¾Ý/////
 126          unsigned char read24c02(unsigned char address)
 127          {
 128   1         unsigned char i;
 129   1         start();
 130   1         writebyte(0xa0);
 131   1         clock();
 132   1         writebyte(address);
 133   1         clock();
 134   1         start();
 135   1         writebyte(0xa1);
 136   1         clock();
 137   1         i=readbyte();
 138   1         stop();
 139   1         delay1(100);
 140   1         return(i);
 141   1      }
 142          
 143          //////Ïò24c02µÄaddressµØÖ·ÖÐдÈëÒ»×Ö½ÚÊý¾Ýinfo/////
 144          void write24c02(unsigned char address,unsigned char info)
 145          {
 146   1         start();
 147   1         writebyte(0xa0);
 148   1         clock();
 149   1         writebyte(address);
 150   1         clock();
 151   1         writebyte(info);
 152   1         clock();
 153   1         stop();
 154   1         delay1(5000); //Õâ¸öÑÓʱһ¶¨Òª×ã¹»³¤£¬·ñÔò»á³ö´í¡£ÒòΪ24c02ÔÚ´ÓsdaÉÏÈ¡µÃÊý¾Ýºó£¬»¹ÐèÒªÒ»¶¨Ê±¼äµÄÉÕ¼¹ý³
             -Ì¡£
 155   1      }
 156          
 157          void main()
 158          {
 159   1              uchar add,i,j,m;
 160   1              init();        //³õʼ»¯24C02
 161   1              P1=0X55;
 162   1              while(add!=sizeof(music))
 163   1              {
 164   2                      write24c02(0x00+add,music[add]);
 165   2                      add++;
 166   2                      if(add%4==0)
 167   2                      P1=~P1;
 168   2              }
 169   1              P1=0X00;
 170   1      //µ½´ËΪֹ£¬Ïò24C02ÖÐдÈëÊý¾ÝµÄ¹ý³Ì¾ùÒѽáÊø¡£ÏÂÃæµÄ³ÌÐòΪ¸½¼ÓµÄ¡£
 171   1      //½«ÒÑдÈëµÄÊý¾ÝÔÙ¶Á³ö£¬Ë͵½P1¿Ú£¬Í¨¹ý¹Û²ìledµÄÁÁÃðÀ´¼ìÑéдÈëµÄÊý¾ÝÊÇ·ñÕýÈ·¡£
 172   1              while(m!=add)
 173   1              {
 174   2                      buffer[i]=read24c02(m);
 175   2                      i++;
 176   2                      m++;
 177   2              }
 178   1              
C51 COMPILER V8.02   0                                                                     07/12/2010 12:11:04 PAGE 4   

 179   1              while(j!=add)
 180   1              {
 181   2                      P1=buffer[j];
 182   2                      j++;
 183   2                      delay(1000);
 184   2              }
 185   1              while(1);
 186   1      }
 187          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    353    ----
   CONSTANT SIZE    =     60    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =    100       4
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


C51 COMPILATION COMPLETE.  0 WARNING(S),  0 ERROR(S)