gg.lst

C编写的1601LCD邮箱程序

C51 COMPILER V8.02   GG                                                                    03/12/2009 14:01:21 PAGE 1   


C51 COMPILER V8.02, COMPILATION OF MODULE GG
OBJECT MODULE PLACED IN gg.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE gg.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include<reg52.h>
   2          #define uchar unsigned char
   3          #define uint unsigned int
   4          sbit LCM_RW=P2^1; //定义引脚
   5          sbit LCM_RS=P2^0;
   6          sbit LCM_E=P2^2;
   7          #define LCM_Data P0
   8          #define Busy 0x80 //用于检测LCM状态字中的Busy标识 
   9          
  10          void WriteDataLCM(unsigned char WDLCM);
  11          void WriteCommandLCM(unsigned char WCLCM,BuysC);
  12          unsigned char ReadDataLCM(void);
  13          unsigned char ReadStatusLCM(void);
  14          void LCMInit(void);
  15          void DisplayOneChar(unsigned char X, unsigned char Y, unsigned char DData);
  16          void DisplayListChar(unsigned char X, unsigned char Y, unsigned char code *DData);
  17          void Delay5Ms(void);
  18          void Delay400Ms(void);
  19          
  20          unsigned char code cdle_net[] = {"dzcn.mcublog.com"};
  21          unsigned char code email[] = {"[e-mail]"};
  22          
  23          void main(void)
  24          {
  25   1      Delay400Ms(); //启动等待，等LCM讲入工作状态
  26   1      LCMInit(); //LCM初始化
  27   1      Delay5Ms(); //延时片刻(可不要)
  28   1      
  29   1      DisplayListChar(0, 0, cdle_net);
  30   1      DisplayListChar(0, 1, email);
  31   1      while(1);
  32   1      }
  33          
  34          //写数据
  35          void WriteDataLCM(unsigned char WDLCM)
  36          {
  37   1      ReadStatusLCM(); //检测忙
  38   1      LCM_Data = WDLCM;
  39   1      LCM_RS = 1;
  40   1      LCM_RW = 0;
  41   1      LCM_E = 0; //若晶振速度太高可以在这后加小的延时
  42   1      LCM_E = 0; //延时
  43   1      LCM_E = 1;
  44   1      }
  45          
  46          //写指令
  47          void WriteCommandLCM(unsigned char WCLCM,BuysC) //BuysC为0时忽略忙检测
  48          {
  49   1      if (BuysC) ReadStatusLCM(); //根据需要检测忙
  50   1      LCM_Data = WCLCM;
  51   1      LCM_RS = 0;
  52   1      LCM_RW = 0; 
  53   1      LCM_E = 0;
  54   1      LCM_E = 0;
  55   1      LCM_E = 1; 
C51 COMPILER V8.02   GG                                                                    03/12/2009 14:01:21 PAGE 2   

  56   1      }
  57          
  58          //读数据
  59          unsigned char ReadDataLCM(void)
  60          {
  61   1      LCM_RS = 1; 
  62   1      LCM_RW = 1;
  63   1      LCM_E = 0;
  64   1      LCM_E = 0;
  65   1      LCM_E = 1;
  66   1      return(LCM_Data);
  67   1      }
  68          
  69          //读状态
  70          unsigned char ReadStatusLCM(void)
  71          {
  72   1      LCM_Data = 0xFF; 
  73   1      LCM_RS=0;
  74   1      LCM_RW = 1;
  75   1      LCM_E = 0;
  76   1      LCM_E = 0;
  77   1      LCM_E = 1;
  78   1      while (LCM_Data & Busy); //检测忙信号
  79   1      return(LCM_Data);
  80   1      }
  81          
  82          void LCMInit(void) //LCM初始化
  83          {
  84   1      LCM_Data = 0;
  85   1      WriteCommandLCM(0x38,0); //三次显示模式设置，不检测忙信号
  86   1      Delay5Ms(); 
  87   1      WriteCommandLCM(0x38,0);
  88   1      Delay5Ms(); 
  89   1      WriteCommandLCM(0x38,0);
  90   1      Delay5Ms(); 
  91   1      
  92   1      WriteCommandLCM(0x38,1); //显示模式设置,开始要求每次检测忙信号
  93   1      WriteCommandLCM(0x08,1); //关闭显示
  94   1      WriteCommandLCM(0x01,1); //显示清屏
  95   1      WriteCommandLCM(0x06,1); // 显示光标移动设置
  96   1      WriteCommandLCM(0x0C,1); // 显示开及光标设置
  97   1      }
  98          
  99          //按指定位置显示一个字符
 100          void DisplayOneChar(unsigned char X, unsigned char Y, unsigned char DData)
 101          {
 102   1      Y &= 0x1;
 103   1      X &= 0xF; //限制X不能大于15，Y不能大于1
 104   1      if (Y) X |= 0x40; //当要显示第二行时地址码+0x40;
 105   1      X |= 0x80; //算出指令码
 106   1      WriteCommandLCM(X, 0); //这里不检测忙信号，发送地址码
 107   1      WriteDataLCM(DData);
 108   1      }
 109          
 110          //按指定位置显示一串字符
 111          void DisplayListChar(unsigned char X, unsigned char Y, unsigned char code *DData)
 112          {
 113   1      unsigned char ListLength;
 114   1      
 115   1      ListLength = 0;
 116   1      Y &= 0x1;
 117   1      X &= 0xF; //限制X不能大于15，Y不能大于1
C51 COMPILER V8.02   GG                                                                    03/12/2009 14:01:21 PAGE 3   

 118   1      while (DData[ListLength]>0x20) //若到达字串尾则退出
 119   1      {
 120   2      if (X <= 0xF) //X坐标应小于0xF
 121   2      {
 122   3      DisplayOneChar(X, Y, DData[ListLength]); //显示单个字符
 123   3      ListLength++;
 124   3      X++;
 125   3      }
 126   2      }
 127   1      }
 128          
 129          //5ms延时
 130          void Delay5Ms(void)
 131          {
 132   1      unsigned int TempCyc = 5552;
 133   1      while(TempCyc--);
 134   1      }
 135          
 136          //400ms延时
 137          void Delay400Ms(void)
 138          {
 139   1      unsigned char TempCycA = 5;
 140   1      unsigned int TempCycB;
 141   1      while(TempCycA--)
 142   1      {
 143   2      TempCycB=7269;
 144   2      while(TempCycB--);
 145   2      };
 146   1      }
 147          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    309    ----
   CONSTANT SIZE    =     27    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       8
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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