lcd.lst

电气仪表资料

C51 COMPILER V7.20   LCD                                                                   04/01/2003 13:42:28 PAGE 1   


C51 COMPILER V7.20, COMPILATION OF MODULE LCD
OBJECT MODULE PLACED IN LCD.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE LCD.C BROWSE INCDIR(D:\new pm1\program\) DEBUG OBJECTEXTEND

line level    source

   1          #include <comm.h>
   2           #include <lcd.h>
   3          extern uchar LCD_BUF[2][16];
   4          
   5          void Send_LCD_Cmd(uchar dt)
   6          {
   7   1              READ_LCD_BF_FLAG();
   8   1              EA= 0;
   9   1              LCD_RS=0;
  10   1              LCD__RW=0;
  11   1              LCD_PORT_DRC=0xff;
  12   1              SELECT_LCD_PORT;
  13   1              LCD_PORT=dt;    
  14   1              DISABLE_138;
  15   1              EA= 1;      
  16   1      }
  17          
  18          
  19          void Ini_LCD(void){     
  20   1                Send_LCD_Cmd(0x30); 
  21   1                 Send_LCD_Cmd(0x0c); 
  22   1                 Send_LCD_Cmd(0x06);  
  23   1      }
  24          
  25          
  26          void READ_LCD_BF_FLAG(void){
  27   1              LCD_RS=0;
  28   1              LCD__RW=1;
  29   1              SELECT_LCD_PORT;
  30   1              LCD_PORT_DRC=0xff;
  31   1              while(LCD_PORT&0x80);
  32   1      }
  33          void Print_Row_Rom( uchar row_no ,  uchar  *strptr)  //字符串指针
  34          {                                     //把要显示的内容送进显示缓冲区
  35   1              uchar i;
  36   1              if((row_no>1)||(*strptr==0)) return;
  37   1              for(i=0;i<16;i++)
  38   1              {
  39   2                      LCD_BUF[row_no][i]=*strptr;
  40   2                      _nop_();_nop_();
  41   2                      if(*strptr==0) break;
  42   2                      strptr++;
  43   2              }
  44   1              for(;i<16;i++)
  45   1              {
  46   2                      LCD_BUF[row_no][i]=0x20;
  47   2              }
  48   1      }
  49          void Refresh_LCD_Screen(void){       //把显示缓冲区的内容通过显示数据线送到显示LCD
  50   1              uchar i,j;
  51   1              for(i=0;i<2;i++)
  52   1              {
  53   2                      for(j=0;j<16;j++)
  54   2                      {    
  55   3                                    if(i==0)  {
C51 COMPILER V7.20   LCD                                                                   04/01/2003 13:42:28 PAGE 2   

  56   4                                           Send_LCD_Cmd(0x80) ;   //显示在LCD的第一行
  57   4                                            Send_LCD_Cmd(LCD_BUF[i][j]);
  58   4                                      }
  59   3                                       if(i==1)       {
  60   4                                           Send_LCD_Cmd(0x90) ;     //显示在LCD的第二行
  61   4                                            Send_LCD_Cmd(LCD_BUF[i][j]);
  62   4                                      }
  63   3                                    
  64   3                                      
  65   3                              }
  66   2                              
  67   2                      }
  68   1              }
  69          
  70          
  71          void Print_underline(uchar x)
  72          { 
  73   1        
  74   1         Send_LCD_Cmd(x);
  75   1         Send_LCD_Cmd(0x2d);
  76   1      }
  77          
  78          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    203    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       3
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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