74hc595c51.lst

本程序是一个led灯串行控制电路的程序

C51 COMPILER V7.20   74HC595C51                                                            04/13/2008 22:17:22 PAGE 1   


C51 COMPILER V7.20, COMPILATION OF MODULE 74HC595C51
OBJECT MODULE PLACED IN 74hc595c51.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE 74hc595c51.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          //定时器晶体振荡器11.0592M.
   2          
   3          #include "reg51.h"
   4          #include "INTRINS.H"
   5          #define uint unsigned int
   6          #define uchar unsigned char
   7          #define nop() _nop_();_nop_();
   8          
   9          sbit CLK=P1^0;
  10          sbit DAT=P1^1;
  11          sbit RCLK=P1^2;
  12          //sbit CS=P2^3;
  13          
  14          
  15          uchar code tab[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xbf,0xff};//根据使用595的个数，如1个5
             -95就是以上的代码，如2个0xc0c0，3个0xc0c0c0  .......
  16          
  17           
  18          
  19          void sendbyte(uchar byte)
  20          {    
  21   1              uchar num,c; 
  22   1              num=tab[byte];
  23   1              
  24   1         for(c=0;c<8;c++)     //如：1个595 i=8*1，如2个595 i=8*2=16，3个595 i=8*3=24；..................
  25   1              {
  26   2               CLK=0;
  27   2               DAT=num&0x80;
  28   2               num=num<<1;
  29   2               
  30   2               CLK=1;
  31   2               }
  32   1      //         RCLK=0;
  33   1      //         nop();
  34   1      //         nop();
  35   1      //         RCLK=1;
  36   1               
  37   1      }
  38          
  39          void out595(void)
  40          {
  41   1              RCLK=0;
  42   1              nop();
  43   1              RCLK=1;
  44   1      }
  45          
  46          void display(uchar word)
  47          {
  48   1       uchar i,j;
  49   1       i=word/10;
  50   1       j=word-10*i;
  51   1       sendbyte(j);
  52   1       sendbyte(i);
  53   1       out595();
  54   1      }
C51 COMPILER V7.20   74HC595C51                                                            04/13/2008 22:17:22 PAGE 2   

  55          
  56          
  57          main()
  58          {   
  59   1          while(1)
  60   1          { 
  61   2           display(19);
  62   2           display(86);
  63   2          }
  64   1          while(1);
  65   1          
  66   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     72    ----
   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)