display.lst

频率测量程序

C51 COMPILER V7.50   DISPLAY                                                               11/29/2007 11:23:34 PAGE 1   


C51 COMPILER V7.50, COMPILATION OF MODULE DISPLAY
OBJECT MODULE PLACED IN DisPlay.OBJ
COMPILER INVOKED BY: D:\Keil\C51\BIN\C51.EXE DisPlay.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #define DisPlay_GLOBALS
   2          #include<includes.h>
   3          void DisNum(Uchar Bit,Uchar Num)    
   4          {
   5   1        write7279(DECODE1+Bit,Num);           // 在第Bit(0-7)位显示Num  
   6   1      }
   7          void write7279(unsigned char cmd, unsigned char dta)
   8          {
   9   1              send_byte (cmd);
  10   1              send_byte (dta);
  11   1      }       
  12          
  13          void send_byte( unsigned char out_byte)
  14          {
  15   1              unsigned char i;
  16   1              cs=0;
  17   1              long_delay();
  18   1              for (i=0;i<8;i++)
  19   1              {
  20   2                      if (out_byte&0x80)
  21   2                      {       
  22   3                              dat=1;
  23   3                      }
  24   2                      else
  25   2                      {
  26   3                              dat=0;
  27   3                      }
  28   2                      clk=1;
  29   2                      short_delay();
  30   2                      clk=0;
  31   2                      short_delay();
  32   2                      out_byte=out_byte*2;
  33   2              }
  34   1              dat=0;
  35   1      }
  36          void long_delay(void)
  37          {
  38   1              unsigned char i;
  39   1              for (i=0;i<0x30;i++);
  40   1      }
  41          
  42          void short_delay(void)
  43          {
  44   1              unsigned char i;
  45   1              for (i=0;i<8;i++);
  46   1      }
  47          
  48          // ************************* 延时 n*10ms *************************
  49          void delay10ms(unsigned char time)
  50          {
  51   1              unsigned char i;
  52   1              unsigned int j;
  53   1              for (i=0;i<time;i++)
  54   1              {
  55   2                      for(j=0;j<0x390;j++)
C51 COMPILER V7.50   DISPLAY                                                               11/29/2007 11:23:34 PAGE 2   

  56   2                      {
  57   3                 _nop_();
  58   3                         _nop_();
  59   3                 _nop_();
  60   3                         _nop_();
  61   3                      }
  62   2              }
  63   1      }
  64          
  65              
  66                  
  67          
  68          
  69                  
  70          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    109    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     10       3
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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