93c66.lst

嵌入式C语言程序设计教材的程序例子代码

C51 COMPILER V7.50   93C66                                                                 09/15/2005 09:49:25 PAGE 1   


C51 COMPILER V7.50, COMPILATION OF MODULE 93C66
OBJECT MODULE PLACED IN 93C66.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE 93C66.C BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include        <intrins.h>
   2          #include        <REGX51.h>
   3          //
   4          #define         READ            0x0C00  /* xxxx110A8,A7-A0 */
   5          #define         EWEN            0x0980  /* xxxx1001 ,1xxxxxxx */
   6          #define         WRITE           0x0A00  /* xxxx101A8,A7-A0 */
   7          #define         EWDS            0x0800  /* xxxx1000,0xxxxxxx */
   8          //
   9          #define         ShiftBit        4
  10          //
  11          #define         CS                      P2_3
  12          #define         SK                      P2_2
  13          #define         DI                      P2_1
  14          #define         DO                      P2_0
  15          //
  16          char code int2charx[]="0123456789ABCDEF";
  17          void                    write_command(int);
  18          unsigned char   read_byte(int);
  19          void                    write_byte(int,unsigned char);
  20          void                    check_busy(void);
  21          //
  22          unsigned char read_byte(int address)
  23          { 
  24   1              int i,command;  
  25   1              unsigned char temp;
  26   1      
  27   1              CS=1;
  28   1              command=(READ|address);  
  29   1              write_command(command);
  30   1              for(i=0;i<8;i++)                /* 弄