lcd.lst

12位11通道AD转换芯片tlv2553,12位双通道DA转换芯片tlv5638

C51 COMPILER V7.01  LCD                                                                    12/13/2006 21:40:33 PAGE 1   


C51 COMPILER V7.01, COMPILATION OF MODULE LCD
OBJECT MODULE PLACED IN lcd.OBJ
COMPILER INVOKED BY: C:\program files\Keil\C51\BIN\C51.EXE lcd.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include"group.h"
   2          
   3          xdata unsigned char CW _at_ 0xf9fc;                 //液晶控制地址
   4          xdata unsigned char CR _at_ 0xf9fc;
   5          xdata unsigned char DW _at_ 0xf9fd;
   6          xdata unsigned char DR _at_ 0xf9ff;
   7          
   8          
   9          bit flag;                                                                   //标志位
  10          //-----------------------------------------------
  11          extern unsigned char lc_read(void)                                  //读液晶命令
  12          {
  13   1              unsigned char a;
  14   1              delay(100);
  15   1              a=CR;
  16   1              return(a);
  17   1      }
  18          //-----------------------------------------------
  19          extern void readbf(void)                                                //读液晶忙
  20          { 
  21   1              while(flag)
  22   1              {
  23   2                      flag=(bit)(lc_read()&0x80);
  24   2              }
  25   1      }
  26          //-----------------------------------------------
  27          extern void lc_write(unsigned char a)                   //写液晶命令
  28          {
  29   1              delay(20);
  30   1              CW=a;
  31   1              delay(20);
  32   1      }
  33          //-----------------------------------------------
  34          extern void ld_write(unsigned char a)                   //写液晶数据
  35          {
  36   1              delay(20);
  37   1              DW=a;
  38   1              delay(20);
  39   1      }
  40          //-----------------------------------------------
  41          extern void lcd_init(void)                                              //液晶初始化
  42          {
  43   1              readbf();
  44   1              lc_write(0x38);
  45   1              delay(500);
  46   1              readbf();
  47   1              lc_write(0x01);          //0001显示清除
  48   1              readbf();
  49   1              delay(500);
  50   1              lc_write(0x0c);          //11XX整体显示  1111光标开/闪烁  1100光标关/无闪
  51   1              readbf();
  52   1              delay(500);
  53   1              lc_write(0x06);          //011X光标右移  010X光标左移  0111屏幕所有文字左/右移
  54   1              delay(500);
  55   1      }
C51 COMPILER V7.01  LCD                                                                    12/13/2006 21:40:33 PAGE 2   

  56          //-----------------------------------------------
  57          extern void lc_pos(unsigned char posx,unsigned char posy)                               //设定显示位置  
  58          {  
  59   1           posx=posx&0xf;
  60   1           posy=posy&0x1;                        
  61   1           lc_write(posx|posy*0x40+0x80);                      
  62   1      }
  63          //---------------------------------------------
  64          extern void display_char(unsigned char x,unsigned char y,unsigned char ch)              //显示字符
  65          {       
  66   1           readbf();
  67   1           lc_pos(x,y);
  68   1           ld_write(ch);
  69   1               
  70   1      }
  71          //--------------------------------------
  72          extern void display_string(unsigned char x,unsigned char y,unsigned char code *string)  //显示字符串      
             -                                                            //在指定点起显示一个字符串
  73          {
  74   1           unsigned length;
  75   1           length=0;
  76   1               readbf();
  77   1           while(string[length]!='\0')
  78   1           {
  79   2              display_char(x,y,string[length++]);
  80   2              x++;
  81   2           }
  82   1      }
  83          //---------------------------------------
  84          extern void lcdclear(void)    //清屏
  85          {    
  86   1           readbf();
  87   1           lc_write(0x01);
  88   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    244    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----      11
   IDATA SIZE       =   ----    ----
   BIT SIZE         =      1    ----
END OF MODULE INFORMATION.


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