main.lst

用max197对外部输入电压做采样

C51 COMPILER V7.06   MAIN                                                                  08/20/2008 11:42:40 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE MAIN
OBJECT MODULE PLACED IN main.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE main.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include <reg52.h>
   2          #define  WR197  RD      
   3          #define  RD197  WR
   4          #define  HBEN   T0
   5          #define  CS     T1
   6          #define  DATA197 P2
   7          
   8          
   9          
  10          //////////////////////
  11          /////////////////////
  12          ///////液晶控制线宏定义
  13          #define  E  INT0
  14          #define  RS  RXD
  15          #define  RW  TXD
  16          ///////////////////
  17          //////////////////
  18          //////////////////
  19          code char table[]="The voltage is:";
  20          code char ANSC[]={'0','1','2','3','4','5','6','7','8','9'};
  21          char vdatatable[6]={' ','.',' ',' ',' ','V'};
  22          
  23          void delay(unsigned char del)
  24          {
  25   1              unsigned x,y;
  26   1              
  27   1              for(x=del;x>0;x--)
  28   1                      for(y=110;y>0;y--);
  29   1      }
  30          
  31          
  32          
  33          
  34          
  35          
  36          void Write_Com(unsigned char com)
  37          {
  38   1              
  39   1              RS=0;
  40   1              P0=com;
  41   1              delay(1);
  42   1              E=1;
  43   1              delay(1);       
  44   1              E=0;
  45   1      }
  46          
  47          void Write_Data(unsigned char date)
  48          {
  49   1              RS=1;
  50   1              P0=date;
  51   1              delay(1);
  52   1              E=1;
  53   1              delay(1);
  54   1              E=0;
  55   1      }
C51 COMPILER V7.06   MAIN                                                                  08/20/2008 11:42:40 PAGE 2   

  56          
  57          
  58          
  59          void  init()
  60          {
  61   1          E=0;        
  62   1              RW=0;
  63   1              Write_Com(0x38);
  64   1              Write_Com(0x0c);
  65   1              Write_Com(0x06);
  66   1              Write_Com(0x01);
  67   1              
  68   1      }
  69          
  70          
  71          
  72          unsigned int write_command(unsigned char com)
  73          {
  74   1              unsigned int Vdata;     
  75   1              CS=1;
  76   1              WR197=1;
  77   1              RD197=1;
  78   1              HBEN=1;
  79   1              CS=0;
  80   1              WR197=0;
  81   1              DATA197=com;
  82   1              WR197=1;
  83   1              DATA197=0xff;
  84   1              delay(40);
  85   1              RD197=0;
  86   1              Vdata=DATA197;
  87   1              HBEN=0;
  88   1              Vdata=(Vdata<<8)|DATA197;
  89   1              RD197=0;
  90   1              return  Vdata;  
  91   1      }
  92          
  93          
  94          
  95          
  96          
  97          
  98          void main()
  99          {
 100   1              unsigned int vdata;
 101   1              unsigned char vdata4,vdata3,vdata2,vdata1;
 102   1              unsigned char i=0;
 103   1              INT1=1;
 104   1              T1=1;   
 105   1              T0=1;
 106   1              init();
 107   1              Write_Com(0x80);
 108   1              while(table[i]!='\0')
 109   1                      {
 110   2                              Write_Data(table[i]);
 111   2                              i++;
 112   2                      }
 113   1      //      P1=0xff;
 114   1              P2=0x00;
 115   1              P3=0;
 116   1      //      P3=0xff;
 117   1      loop:
C51 COMPILER V7.06   MAIN                                                                  08/20/2008 11:42:40 PAGE 3   

 118   1              vdata=write_command(0x41);
 119   1              vdata4=(unsigned char)(vdata/1000);
 120   1              vdata3=(unsigned char)((vdata%1000)/100);
 121   1              vdata2=(unsigned char)((vdata%100)/10);
 122   1              vdata1=(unsigned char)(vdata%10);
 123   1              vdatatable[0]=ANSC[vdata4];
 124   1              vdatatable[2]='.';
 125   1              vdatatable[2]=ANSC[vdata3];
 126   1              vdatatable[3]=ANSC[vdata2];
 127   1              vdatatable[4]=ANSC[vdata1];
 128   1              Write_Com(0x80+0x45);
 129   1              for(i=0;i<6;i++)
 130   1                      {
 131   2                              Write_Data(vdatatable[i]);
 132   2                              //delay(2);
 133   2                      }
 134   1              delay(255);
 135   1              delay(255);
 136   1              delay(255);
 137   1              goto loop;
 138   1      }
 139          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    304    ----
   CONSTANT SIZE    =     26    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      6       4
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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