C51 COMPILER V7.09   LEDDISP2                                                              04/19/2007 12:01:25 PAGE 1   


C51 COMPILER V7.09, COMPILATION OF MODULE LEDDISP2
OBJECT MODULE PLACED IN LEDDISP2.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE LEDDISP2.C BROWSE DEBUG OBJECTEXTEND

line level    source

   1          /*********************************************************************/
   2          //            
   3          //                  采用8*8LED動態顯示文字演示程序
   4          //                    LRM 2004.10.9      
   5          /*********************************************************************/
   6          //使用AT89C52單片機，12MHZ晶振，P0口輸出一行數據，P2口作行掃描，用共陽LED管
   7          //P1口接三個按鍵，用于逐字顯示、向上滾動顯示文字、暫停備用。
   8          #include "reg51.h"
   9          #define char unsigned char
  10          #define int unsigned int
  11          char key,keytmp;
  12          char code distab[]={0xEF,0x83,0xAB,0x83,0xAB,0x83,0xEE,0xE0};  //電
  13          //char code distab[]={0x00,0xff,0xff,0xff,0xff,0xff,0xff,0x00};  //電
  14          char code  scan_con[8]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};   // 列掃描控制字
  15          
  16          //**********按鍵掃描函數***********//
  17          void keyscan()
  18           {
  19   1       key=(~P1)&0x0f;           //讀入鍵值
  20   1       if(key!=0)                //
  21   1       {
  22   2        while(((~P1)&0x0f)!=0);  //等待按鍵釋放
  23   2        keytmp=key;              // 鍵值存放
  24   2        }
  25   1       }
  26          //
  27          //
  28          //********1毫秒延時程序************//
  29          delay1ms(int t)
  30          {
  31   1      int i,j;
  32   1      for(i=0;i<t;i++)
  33   1         for(j=0;j<120;j++)
  34   1           keyscan();
  35   1      }
  36          //
  37          //
  38          /***********功能程序**********/
  39          /***********逐字顯示**********/
  40          fun0()
  41          {
  42   1        char m;
  43   1        for(m=0;m<8;m++)
  44   1          {
  45   2              P0=distab[m];
  46   2              delay1ms(1);    
  47   2              P2=scan_con[m];
  48   2      
  49   2              }
  50   1      }
  51          
  52          //*********主程序**********//
  53          main()
  54          {
  55   1      keytmp=1;              //上電自動演示功能0）
C51 COMPILER V7.09   LEDDISP2                                                              04/19/2007 12:01:25 PAGE 2   

  56   1      while(1)
  57   1       {
  58   2        keyscan();
  59   2        switch(keytmp)
  60   2         {
  61   3          case 1:{fun0();break;}
  62   3          case 2:{fun1();break;}
*** WARNING C206 IN LINE 62 OF LEDDISP2.C: 'fun1': missing function-prototype
  63   3          case 4:{keyscan();P0=0xff;break;}  //備用(暫停黑屏)
  64   3          default:{break;}
  65   3         }   
  66   2       }
  67   1      }
  68          //
  69          //
  70          //*********************結束***********************//


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    121    ----
   CONSTANT SIZE    =     16    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      2    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


C51 COMPILATION COMPLETE.  1 WARNING(S),  0 ERROR(S)