mc1602.lst

QH_MCU_V1.1单片机C源码. 内含实验程序 这是修改版.

C51 COMPILER V7.07   MC1602                                                                09/21/2007 12:57:29 PAGE 1   


C51 COMPILER V7.07, COMPILATION OF MODULE MC1602
OBJECT MODULE PLACED IN MC1602.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE MC1602.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include <REG51.H>
   2          
   3          
   4          sbit LCM_RW = P2^3 ;//定义引脚
   5          sbit LCM_RS= P2^4;
   6          sbit LCM_E = P2^2;
   7          sbit LCMA_ctive= P2^1 ;  //Active
   8          sbit LCM_Positive= P2^0 ; //Positive
   9          #define LCM_Data P0
  10          #define Busy 0x80 //用于检测LCM状态字中的Busy标识
  11          void WriteDataLCM(unsigned char WDLCM);
  12          void WriteCommandLCM(unsigned char WCLCM,BuysC);
  13          unsigned char ReadDataLCM(void);
  14          unsigned char ReadStatusLCM(void);
  15          void LCMInit(void);
  16          void DisplayOneChar(unsigned char X, unsigned char Y, unsigned char DData);
  17          void DisplayListChar(unsigned char X, unsigned char Y, unsigned char code *DData);
  18          void Delay5Ms(void);
  19          void Delay400Ms(void);
  20          unsigned char code uctech[] = {"allwisdom"};
  21          unsigned char code net[] = {"www.allwisdom.net"};
  22          void main(void)
  23          {
  24   1      LCMA_ctive=1;
  25   1      LCM_Positive=0;
  26   1      Delay400Ms(); //启动等待，等LCM讲入工作状态
  27   1      LCMInit(); //LCM初始化
  28   1      Delay5Ms(); //延时片刻(可不要)
  29   1      DisplayListChar(0, 5, uctech);
  30   1      DisplayListChar(0, 0, net);
  31   1      ReadDataLCM();//测试用句无意义
  32   1      while(1);
  33   1      }
  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          //写指令
  46          void WriteCommandLCM(unsigned char WCLCM,BuysC) //BuysC为0时忽略忙检测
  47          {
  48   1      if (BuysC) ReadStatusLCM(); //根据需要检测忙
  49   1      LCM_Data = WCLCM;
  50   1      LCM_RS = 0;
  51   1      LCM_RW = 0; 
  52   1      LCM_E = 0;
  53   1      LCM_E = 0;
  54   1      LCM_E = 1; 
  55   1      }
C51 COMPILER V7.07   MC1602                                                                09/21/2007 12:57:29 PAGE 2   

  56          //读数据
  57          unsigned char ReadDataLCM(void)
  58          {
  59   1      LCM_RS = 1; 
  60   1      LCM_RW = 1;
  61   1      LCM_E = 0;
  62   1      LCM_E = 0;
  63   1      LCM_E = 1;
  64   1      return(LCM_Data);
  65   1      }
  66          //读状态
  67          unsigned char ReadStatusLCM(void)
  68          {
  69   1      LCM_Data = 0xFF; 
  70   1      LCM_RS = 0;
  71   1      LCM_RW = 1;
  72   1      LCM_E = 0;
  73   1      LCM_E = 0;
  74   1      LCM_E = 1;
  75   1      while (LCM_Data & Busy); //检测忙信号
  76   1      return(LCM_Data);
  77   1      }
  78          void LCMInit(void) //LCM初始化
  79          {
  80   1      LCM_Data = 0;
  81   1      WriteCommandLCM(0x38,0); //三次显示模式设置，不检测忙信号
  82   1      Delay5Ms(); 
  83   1      WriteCommandLCM(0x38,0);
  84   1      Delay5Ms(); 
  85   1      WriteCommandLCM(0x38,0);
  86   1      Delay5Ms(); 
  87   1      WriteCommandLCM(0x38,1); //显示模式设置,开始要求每次检测忙信号
  88   1      WriteCommandLCM(0x08,1); //关闭显示
  89   1      WriteCommandLCM(0x01,1); //显示清屏
  90   1      WriteCommandLCM(0x06,1); // 显示光标移动设置
  91   1      WriteCommandLCM(0x0C,1); // 显示开及光标设置
  92   1      }
  93          //按指定位置显示一个字符
  94          void DisplayOneChar(unsigned char X, unsigned char Y, unsigned char DData)
  95          {
  96   1      Y &= 0x1;
  97   1      X &= 0xF; //限制X不能大于15，Y不能大于1
  98   1      if (Y) X |= 0x40; //当要显示第二行时地址码 0x40;
  99   1      X |= 0x80; // 算出指令码
 100   1      WriteCommandLCM(X, 0); //这里不检测忙信号，发送地址码
 101   1      WriteDataLCM(DData);
 102   1      }
 103          //按指定位置显示一串字符
 104          void DisplayListChar(unsigned char X, unsigned char Y, unsigned char code *DData)
 105          {
 106   1      unsigned char ListLength;
 107   1      ListLength = 0;
 108   1      Y &= 0x1;
 109   1      X &= 0xF; //限制X不能大于15，Y不能大于1
 110   1      while (DData[ListLength]>0x20) //若到达字串尾则退出
 111   1      {
 112   2      if (X <= 0xF) //X坐标应小于0xF
 113   2      {
 114   3      DisplayOneChar(X, Y, DData[ListLength]); //显示单个字符
 115   3      ListLength++ ;
 116   3      X++ ;
 117   3      }
C51 COMPILER V7.07   MC1602                                                                09/21/2007 12:57:29 PAGE 3   

 118   2      }
 119   1      }
 120          //5ms延时
 121          void Delay5Ms(void)
 122          {
 123   1      unsigned int TempCyc = 5552;
 124   1      while(TempCyc--);
 125   1      }
 126          //400ms延时
 127          void Delay400Ms(void)
 128          {
 129   1      unsigned char TempCycA = 5;
 130   1      unsigned int TempCycB;
 131   1      while(TempCycA--)
 132   1      {
 133   2      TempCycB=7269;
 134   2      while(TempCycB--);
 135   2      };
 136   1      }
 137          
 138           
 139          
 140          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    316    ----
   CONSTANT SIZE    =     28    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       8
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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