595.lst

该代码可以实现串行输入并行输出

C51 COMPILER V6.12  595                                                                    03/04/2009 23:15:36 PAGE 1   


C51 COMPILER V6.12, COMPILATION OF MODULE 595
OBJECT MODULE PLACED IN .\595.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE .\595.C DEBUG OBJECTEXTEND

stmt level    source

   1          #include<reg51.h>
   2          #include <INTRINS.H>
   3          #define uint unsigned int
   4          #define uchar unsigned char
   5          #define nop() _nop_();_nop_();
   6          
   7          sbit CLK=P2^0;
   8          sbit DAT=P2^1;
   9          sbit RCLK=P2^2;
  10          //sbit CS="P2"^3;
  11          uchar code tab[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xbf,0xff};//0-9,-,全灭 
  12          
  13          void sendbyte(uchar byte)
  14          {    
  15   1              uchar num,c; 
  16   1              num=tab[byte];
  17   1              
  18   1         for(c=0;c<8;c++)
  19   1              {
  20   2               CLK=0;
  21   2               DAT= num&0x80;
  22   2               num= num<<1;
  23   2               CLK=1;
  24   2               }
  25   1      //         RCLK="0";
  26   1      //         nop();
  27   1      //         nop();
  28   1      //         RCLK="1";
  29   1               
  30   1      }
  31          
  32          void out595(void)
  33          {
  34   1              RCLK=0;
  35   1              nop();
  36   1              RCLK=1;
  37   1      }
  38          
  39          void display(uchar word)
  40          {
  41   1       uchar i,j;
  42   1       i=word/10;
  43   1       j=word-10*i;
  44   1       sendbyte(j);
  45   1       sendbyte(i);
  46   1       out595();
  47   1      }
  48          
  49          
  50          main()
  51          {   
  52   1          while(1)
  53   1          { 
  54   2           display(19);
  55   2           display(86);
C51 COMPILER V6.12  595                                                                    03/04/2009 23:15:36 PAGE 2   

  56   2          }
  57   1          while(1);
  58   1          
  59   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     74    ----
   CONSTANT SIZE    =     12    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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