C51 COMPILER V7.07   MAIN                                                                  07/05/2006 05:56:10 PAGE 1   


C51 COMPILER V7.07, COMPILATION OF MODULE MAIN
OBJECT MODULE PLACED IN main.OBJ
COMPILER INVOKED BY: c:\Keil\C51\BIN\C51.EXE main.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #define uchar unsigned char //定義一下方便使用
   2          #define uint  unsigned int
   3          #define ulong unsigned long
   4          #include <reg52.h>     //包括一個(gè)52標(biāo)準(zhǔn)內(nèi)核的頭文件
   5          //本課試驗(yàn)寫入一個(gè)字節(jié)到24c02中
   6          
   7          char code dx516[3] _at_ 0x003b;//這是為了仿真設(shè)置的
   8          
   9          #define WriteDeviceAddress 0xa0   //定義器件在IIC總線中的地址
  10          #define ReadDviceAddress 0xa1
  11          sbit    SCL=P2^7;
  12          sbit    SDA=P2^6;
  13          
  14          sbit    P10=P1^0;
  15          
  16          //定時(shí)函數(shù)
  17          void DelayMs(uint number) 
  18          {
  19   1              uchar temp;
  20   1              for(;number!=0;number--) 
  21   1              {
  22   2                      for(temp=112;temp!=0;temp--) ;
  23   2              }
  24   1      }
  25          
  26          //開(kāi)始總線
  27          void Start() 
  28          {
  29   1              SDA=1;
  30   1              SCL=1;
  31   1              SDA=0;
  32   1              SCL=0;
  33   1      }
  34          
  35          //結(jié)束總線
  36          void Stop() 
  37          {
  38   1              SCL=0;
  39   1              SDA=0;
  40   1              SCL=1;
  41   1              SDA=1;
  42   1      }
  43          
  44          //測(cè)試ACK
  45          bit TestAck() 
  46          {
  47   1              bit ErrorBit;
  48   1              SDA=1;
  49   1              SCL=1;
  50   1              ErrorBit=SDA;
  51   1              SCL=0;
  52   1              return(ErrorBit);
  53   1      }
  54          
  55          //寫入8個(gè)bit到24c02
C51 COMPILER V7.07   MAIN                                                                  07/05/2006 05:56:10 PAGE 2   

  56          Write8Bit(uchar input) 
  57          {
  58   1              uchar temp;
  59   1              for(temp=8;temp!=0;temp--) 
  60   1              {
  61   2                      SDA=(bit)(input&0x80);
  62   2                      SCL=1;
  63   2                      SCL=0;
  64   2                      input=input<<1;
  65   2              }
  66   1      }
  67          
  68          //寫入一個(gè)字節(jié)到24c02中
  69          void Write24c02(uchar ch,uchar address) 
  70          {
  71   1              Start();
  72   1              Write8Bit(WriteDeviceAddress);
  73   1              TestAck();
  74   1              Write8Bit(address);
  75   1              TestAck();
  76   1      
  77   1              Write8Bit(ch);
  78   1              TestAck();
  79   1              
  80   1              Stop();
  81   1              DelayMs(10);
  82   1      }
  83          
  84          
  85          
  86          //老鼠愛(ài)大米
  87          uchar code dami[]={
  88          "321-|3.2_1-|3231|3_6.5-|3_5_665|65-3_2_|122_3_2|12--|"
  89          };
  90          
  91          //本課試驗(yàn)寫老鼠愛(ài)大米的樂(lè)譜到24c02中
  92          void main(void) // 主程序
  93          {
  94   1              uchar i;
  95   1              for(i=0;dami[i]!=0;i++)
  96   1              {
  97   2                      Write24c02(dami[i],i);// 逐個(gè)寫入到24c02的中
  98   2              }
  99   1              Write24c02(0x00,i); //寫入最后一個(gè)0
 100   1      
 101   1              P10=0; //指示運(yùn)行完畢
 102   1              while(1);  //程序掛起
 103   1      
 104   1      
 105   1      }
 106          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    129    ----
   CONSTANT SIZE    =     54    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----       1
END OF MODULE INFORMATION.

C51 COMPILER V7.07   MAIN                                                                  07/05/2006 05:56:10 PAGE 3   


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