b_commond.lst

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C51 COMPILER V7.06   B_COMMOND                                                             07/07/2008 21:47:21 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE B_COMMOND
OBJECT MODULE PLACED IN b_commond.OBJ
COMPILER INVOKED BY: D:\Program Files\Keil\C51\BIN\C51.EXE b_commond.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include<AT89X51.H>
   2          #include<intrins.h>
   3          
   4          #define EN      P2_0
   5          #define RW      P2_1
   6          #define RS      P2_2
   7          #define DATA    P1
   8          
   9          /*
  10          void che_busy(void);
  11          void send_d(unsigned char data_in);
  12          void send_i(unsigned char comm);
  13          unsigned char read_ram(void);
  14          */
  15          
  16          //;================================================
  17          //测忙碌子程序
  18          //;RS=0,RW=1,E=H,D0-D7=状态字
  19          //;================================================
  20          void che_busy(void)
  21          {
  22   1              unsigned char q;
  23   1              RS = 0;         //CLR RS
  24   1              RW = 1;         //SETB RW
  25   1              do
  26   1              {                               //JB P0.7,$
  27   2                      P1 = 0xFF;      //MOV P0,#0FFH ;测忙碌子程序
  28   2                      EN = 1;         //SETB E
  29   2                      q = P1; 
  30   2                      EN = 0;         //CLR E
  31   2              }
  32   1              while(q & 0x80);
  33   1      }
  34          
  35          //;===============================================
  36          //;写数据子程序
  37          //;RS=1,RW=0,E=高脉冲,D0-D7=数据
  38          //;===============================================
  39          void send_d(unsigned char data_in)
  40          {
  41   1      
  42   1              che_busy();             //LCALL CHK_BUSY ;写数据子程序
  43   1              RS = 1;                 //SETB RS
  44   1              RW = 0;                 //CLR RW
  45   1              DATA = data_in; //MOV P0,A
  46   1              EN = 1;                 //SETB E
  47   1              _nop_();                //NOP
  48   1              _nop_();                        //NOP
  49   1              EN = 0;                 //CLR E
  50   1      
  51   1              
  52   1      }
  53          
  54          //;===============================================
  55          //;写指令子程序
C51 COMPILER V7.06   B_COMMOND                                                             07/07/2008 21:47:21 PAGE 2   

  56          //;RS=0,RW=0,E=高脉冲,D0-D7=指令码
  57          //;===============================================
  58          void send_i(unsigned char comm)
  59          {
  60   1              che_busy();             //LCALL CHK_BUSY
  61   1              RS = 0;                 //CLR RS
  62   1              RW = 0;                 //CLR RW
  63   1              DATA = comm;    //MOV P0,A
  64   1              EN = 1 ;                //SETB E        
  65   1              _nop_();                        //NOP
  66   1              _nop_();                        //NOP
  67   1              EN = 0;                 //CLR E
  68   1      }
  69          /*
  70          //;读RAM值
  71          unsigned char read_ram(void)
  72          {
  73                  unsigned char temp;
  74                  che_busy();
  75          
  76                  P0 = 0xFF;      //MOV P0,#0FFH ;测忙碌子程序
  77                  RS = 1;         //SETB RS
  78                  RW = 1;         //SETB RW
  79                  EN = 1;         //SETB E
  80                  _nop_();
  81                  _nop_();
  82                  temp = DATA;
  83                  EN = 0;
  84                  return(temp);
  85          }
  86          */
  87          //;********************初始化**********************
  88          void lcd_ini(void)
  89          {
  90   1              P1 = 0xff;
  91   1              P2 = 0xff;
  92   1              P3 = 0xff;
  93   1              send_i(0x38);           //LGS0: MOV A,#34H ;34H--扩充指令操作
  94   1                                                      //LCALL SEND_I
  95   1              send_i(0x08);           //MOV A,#30H ;30H--基本指令操作
  96   1                                                      //LCALL SEND_I
  97   1              send_i(0x06);           //MOV A,#01H ;清除显示
  98   1                                                      //LCALL SEND_I
  99   1              send_i(0x01);           //MOV A,#06H ;指定在资料写入或读取时，光标的移动方向
 100   1                                                      //LCALL SEND_I ;DDRAM 的地址计数器(AC)加1
 101   1              send_i(0x0C);           //MOV A,#0CH ;开显示,关光标,不闪烁
 102   1                                                      //LCALL SEND_I
 103   1      }
 104          
 105          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     88    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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