test.lst

1602LCD测试程序,中文说明,一看就会

C51 COMPILER V7.00  TEST                                                                   01/16/2007 23:05:40 PAGE 1   


C51 COMPILER V7.00, COMPILATION OF MODULE TEST
OBJECT MODULE PLACED IN TEST.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE TEST.C BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          /*****************************************************
   2          1602C语言测试程序
   3          Copy：yangdetian
   4          EMail:[e-mail]
   5          ******************************************************/
   6          #include <AT89X52.H>
   7          #include <string.h>
   8          sbit R_S=0xB4;//1602RS端口
   9          sbit R_W=0xB5;//1602RW端口
  10          sbit ENABLE=0xB3;//1602E端口
  11          sbit ACC_7=0xE7;//1602第DB7变量
  12          sfr DB0_DB7=0x90;//1602数据线变量
  13          unsigned int a;
  14          void ChechBusy(void)//LCM忙碌信号检查子函数
  15          {
  16   1      g1:R_S=0;
  17   1      R_W=1;
  18   1      ENABLE=0;
  19   1      ENABLE=1;
  20   1      ACC=DB0_DB7;
  21   1      ENABLE=0;
  22   1      if(1==ACC_7)
  23   1              {
  24   2              goto g1;
  25   2              }
  26   1              else
  27   1              {
  28   2              for(a=0;a<1000;a++);
  29   2              }
  30   1      } 
  31          void Write_LCDData(char DDARMcode)//LCMDDRAM写文字子函数
  32          {
  33   1      ChechBusy();
  34   1      ENABLE=0;
  35   1      R_S=1;
  36   1      R_W=0;
  37   1      ENABLE=1;
  38   1      ACC=DDARMcode;
  39   1      DB0_DB7=ACC;
  40   1      ENABLE=0;
  41   1      }
  42          void Write_instruction(char commandcode)//LCM控制IR控制命令子函数
  43          {
  44   1      ChechBusy();
  45   1      ENABLE=0;
  46   1      R_S=0;
  47   1      R_W=0;
  48   1      ENABLE=1;
  49   1      ACC=commandcode;
  50   1      DB0_DB7=ACC;
  51   1      ENABLE=0;
  52   1      }
  53          void LCDInitial(void)
  54          {
  55   1      Write_instruction(0x38);//LCM设定为使用8Bits汇流排，显示两行并使用5*7的字符
C51 COMPILER V7.00  TEST                                                                   01/16/2007 23:05:40 PAGE 2   

  56   1      Write_instruction(0x0E);//LCM设定为显示模式，光标显示并闪烁
  57   1      Write_instruction(0x06);//LCM设定为每一次资料输入DDRAM后光标向后移动一格
  58   1      }
  59          void Write_LCDDataChar(char commandcode,char DDARMcode)//LCM写入一个字符子的函数
  60          {
  61   1      Write_instruction(commandcode);//LCM的DDRAM读写位置变量commandcode
  62   1      Write_LCDData(DDARMcode);//写入DDARMcode变量中的文字
  63   1      }
  64          void Write_LCDDataStr(int commandcode,char *DDARMcode)//LCM写入一串字符子函数,commandcode行号,*DDARMcode字
             -符串地址
  65          {
  66   1      int a,b;
  67   1      char tmpechar;
  68   1      if(1==commandcode) 
  69   1      {
  70   2      tmpechar=0x80;
  71   2      }
  72   1      else if(2==commandcode)
  73   1      {
  74   2      tmpechar=0xC0;
  75   2      }
  76   1      a=strlen(DDARMcode);
  77   1      for (b=0;b<a;b++)
  78   1              {
  79   2              Write_instruction(tmpechar);
  80   2              Write_LCDData(DDARMcode[b]);
  81   2              tmpechar++;
  82   2              }
  83   1      }
  84          void main()
  85          {
  86   1      LCDInitial();
  87   1      Write_instruction(0x01);//清空LCD的内容
  88   1      Write_LCDDataChar(0x80,0x41);//LCM写入A字符,第一行第一个位置
  89   1      Write_LCDDataChar(0xC7,0x42);//LCM写入A字符,第二行第八个位置
  90   1      Write_LCDDataStr(1,"Yangdetian");//LCM写入一串字符串,第一行
  91   1      Write_LCDDataStr(2,"I Love You");//LCM写入一串字符串,第二行
  92   1      g1:goto g1;
  93   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    234    ----
   CONSTANT SIZE    =     22    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      2       6
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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