18.lst

来自「单片机C语言程序设计实训100例」· LST 代码 · 共 167 行

C51 COMPILER V8.08   18                                                                    08/12/2009 16:59:54 PAGE 1   


C51 COMPILER V8.08, COMPILATION OF MODULE 18
OBJECT MODULE PLACED IN 18.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE 18.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include <reg52.h>
   2          #include <intrins.h>
   3          #define uint unsigned int
   4          #define uchar unsigned char
   5          #define delay4us() {_nop_();_nop_();_nop_();_nop_();}
   6          
   7          sbit RS = P2^0;
   8          sbit RW = P2^1;
   9          sbit E  = P2^2;
  10          
  11          sbit CS  = P1^0;
  12          sbit CLK = P1^1;
  13          sbit DIO = P1^2;
  14          
  15          uchar Display_Buffer[] = "0.00V";
  16          uchar code Line1[] = "Current Voltage:";
  17          
  18          void DelayMS(uint ms)
  19          {
  20   1              uchar i;
  21   1              while(ms--)
  22   1              {
  23   2                      for(i=0;i<120;i++);
  24   2              }
  25   1      }
  26          
  27          bit LCD_Busy_Check()
  28          {
  29   1              bit result;
  30   1              RS = 0;
  31   1              RW = 1;
  32   1              E  = 1;
  33   1              delay4us();
  34   1              result = (bit)(P0&0x80);
  35   1              E  = 0;
  36   1              return result;
  37   1      }
  38          
  39          void LCD_Write_Command(uchar cmd)
  40          {
  41   1              while(LCD_Busy_Check());
  42   1              RS = 0;
  43   1              RW = 0;
  44   1              E  = 0;
  45   1              _nop_();
  46   1              _nop_();
  47   1              P0 = cmd;
  48   1              delay4us();
  49   1              E = 1;
  50   1              delay4us();
  51   1              E = 0;
  52   1      }
  53          
  54          void Set_Disp_Pos(uchar pos)
  55          {
C51 COMPILER V8.08   18                                                                    08/12/2009 16:59:54 PAGE 2   

  56   1              LCD_Write_Command(pos | 0x80);
  57   1      }
  58          
  59          void LCD_Write_Data(uchar dat)
  60          {
  61   1              while(LCD_Busy_Check());
  62   1              RS = 1;
  63   1              RW = 0;
  64   1              E  = 0;
  65   1              P0 = dat;
  66   1              delay4us();
  67   1              E = 1;
  68   1              delay4us();
  69   1              E = 0;
  70   1      }
  71          
  72          void LCD_Initialise()
  73          {
  74   1              LCD_Write_Command(0x38); DelayMS(1);
  75   1              LCD_Write_Command(0x0c); DelayMS(1);
  76   1              LCD_Write_Command(0x06); DelayMS(1);
  77   1              LCD_Write_Command(0x01); DelayMS(1);
  78   1      }
  79          
  80          uchar Get_AD_Result()
  81          {
  82   1              uchar i,dat1=0,dat2=0;
  83   1              CS  = 0;
  84   1              CLK = 0;
  85   1              DIO = 1; _nop_(); _nop_();
  86   1              CLK = 1; _nop_(); _nop_();
  87   1              CLK = 0;DIO = 1; _nop_(); _nop_();
  88   1              CLK = 1; _nop_(); _nop_();
  89   1              CLK = 0;DIO = 1; _nop_(); _nop_();
  90   1              CLK = 1;DIO = 1; _nop_(); _nop_();
  91   1              CLK = 0;DIO = 1; _nop_(); _nop_();
  92   1              for(i=0;i<8;i++)
  93   1              {
  94   2                      CLK = 1; _nop_(); _nop_();
  95   2                      CLK = 0; _nop_(); _nop_();
  96   2                      dat1 = dat1 << 1 | DIO; 
  97   2              }
  98   1              for(i=0;i<8;i++)
  99   1              {
 100   2                      dat2 = dat2 << ((uchar)(DIO)<<i);
 101   2                      CLK = 1; _nop_(); _nop_();
 102   2                      CLK = 0; _nop_(); _nop_();
 103   2              }
 104   1              CS = 1;
 105   1              return (dat1 == dat2) ? dat1:0;
 106   1      }
 107          
 108          void main()
 109          {
 110   1              uchar i;
 111   1              uint d;
 112   1              LCD_Initialise();
 113   1              DelayMS(10);
 114   1              while(1)
 115   1              {
 116   2                      d = Get_AD_Result()*500.0/255;
 117   2                      Display_Buffer[0]=d/100+'0';
C51 COMPILER V8.08   18                                                                    08/12/2009 16:59:54 PAGE 3   

 118   2                      Display_Buffer[2]=d/10%10+'0';
 119   2                      Display_Buffer[3]=d%10+'0';
 120   2                      Set_Disp_Pos(0x01);
 121   2                      i = 0;
 122   2                      while(Line1[i]!='\0')
 123   2                      {
 124   3                              LCD_Write_Data(Line1[i+1]);     
 125   3                      }
 126   2                      Set_Disp_Pos(0x46);
 127   2                      i = 0;
 128   2                      while(Display_Buffer[i]!='\0')
 129   2                      {
 130   3                              LCD_Write_Data(Display_Buffer[i+1]);    
 131   3                      }
 132   2              }
 133   1      }
 134          
 135          
 136          
 137          
 138          
 139          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    403    ----
   CONSTANT SIZE    =     17    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      6    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----       1
END OF MODULE INFORMATION.


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