x24c44.lst

这个是一个用Keil C51编写的带SRAM的EEPROM芯片X24C44的驱动程序示例

C51 COMPILER V7.08   X24C44                                                                09/22/2007 12:35:35 PAGE 1   


C51 COMPILER V7.08, COMPILATION OF MODULE X24C44
OBJECT MODULE PLACED IN X24C44.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE X24C44.C BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include <AT89X51.H>
   2          #include "com.h"
   3          #include "X24C44.H"
   4          //-----------------------------------------------
   5          sbit LED_TEST=P3^4;//LED blink test
   6          //*********************************************//
   7          //       delay nearly n*0.05s ;;n=20->1s      //
   8          //********************************************//
   9          void Delay(unsigned int n)
  10          {       unsigned int i;
  11   1              for(;n>0;n--)
  12   1              {       for(i=0;i<10000;) i++;  }
  13   1      }
  14          //------------------LED Blink for Test----------------------------
  15          void Blink(unsigned char t,unsigned char n)
  16          {       unsigned char i;
  17   1              for(i=0;i<n;i++)
  18   1              {       LED_TEST=0;Delay(t);LED_TEST=1;Delay(t);        }
  19   1      }
  20          //----------------------------------------------------------------
  21          
  22          //-------------------------------------
  23          //#####################################
  24          //-------------------------------------
  25          void main(void)
  26          {
  27   1              unsigned char i,t;
  28   1              unsigned int n;
  29   1              Init_Com();
  30   1              Blink(3,3);
  31   1              SendString("Now test the X24C44!!!");CT();
  32   1      //--------------------
  33   1              Recall_Ram();
  34   1              Write_Enable();
  35   1      //----------------------------
  36   1      
  37   1              SendString("Now write word to X24C44!!!");CT();
  38   1              for(i=0;i<5;i++)
  39   1              {
  40   2                      WriteWord_X24C44(i,i);
  41   2                      Blink(3,1);
  42   2                      SendChar(i+0x30);
  43   2              }
  44   1              CT();
  45   1              SendString("Write over!!!");CT();
  46   1      //-----------------------------
  47   1              Store_Ram();
  48   1              SendString("Now Store_Ram!!!");CT();
  49   1              //-----------------
  50   1              Blink(3,3);
  51   1              //-----------------
  52   1              Recall_Ram();
  53   1              SendString("Now Recall_Ram!!!");CT();
  54   1      
  55   1      
C51 COMPILER V7.08   X24C44                                                                09/22/2007 12:35:35 PAGE 2   

  56   1              SendString("Now read word from X24C44!!!");CT();
  57   1              for(i=0;i<5;i++)
  58   1              {
  59   2                      n=ReadWord_X24C44(i);
  60   2                      Blink(3,1);
  61   2                      SendChar(((unsigned char) n)+0x30);
  62   2              }
  63   1              CT();
  64   1              SendString("Read over!!!");CT();
  65   1      //-----------------     
  66   1              //for(;;);
  67   1      //-----------------------------
  68   1      //-------------------------------------------------------------
  69   1      //----------------------------
  70   1              Blink(3,3);
  71   1              Write_Enable();//!!!!!!!!must set it!!!!!
  72   1      //---------------------------
  73   1              SendString("Now write char to X24C44!!!");CT();
  74   1              for(i=0;i<5;i++)
  75   1              {
  76   2                      WriteChar_X24C44(31-i,4-i);
  77   2                      Blink(3,1);
  78   2                      SendChar(4-i+0x30);
  79   2              }
  80   1              CT();
  81   1              SendString("Write over!!!");CT();
  82   1      
  83   1      //-----------------------------
  84   1              //-----------------
  85   1              Blink(3,3);
  86   1              //-----------------
  87   1      
  88   1              SendString("Now read char from X24C44!!!");CT();
  89   1              for(i=0;i<5;i++)
  90   1              {
  91   2                      t=ReadChar_X24C44(31-i);
  92   2                      Blink(3,1);
  93   2                      SendChar(t+0x30);
  94   2              }
  95   1              CT();
  96   1              SendString("Read over!!!");CT();
  97   1      //-----------------------------
  98   1              Write_Disable();
  99   1      //--------------------
 100   1              for(;;);
 101   1      }
 102          //-------------------------------------
 103          //#####################################
 104          //-------------------------------------


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    714    ----
   CONSTANT SIZE    =    199    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       5
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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