shiyan.lst

LCD1602.rar

C51 COMPILER V6.12  SHIYAN                                                                 09/02/2007 09:25:09 PAGE 1   


C51 COMPILER V6.12, COMPILATION OF MODULE SHIYAN
OBJECT MODULE PLACED IN SHIYAN.OBJ
COMPILER INVOKED BY: E:\Keil\C51\BIN\C51.EXE SHIYAN.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include"reg51.h"
   2          #include"LCD1602.h"
   3          
   4          #include"hardware.h"
   5          
   6          char code tab[4][4]={		{'1','4','7','#'},
   7                            			{'2','5','8','0'},
   8                            			{'3','6','9','*'},
   9                            			{'A','B','C','D'}};       //0到F的16个键植
  10          
  11          void delay(unsigned char a)
  12          	{
  13   1      	unsigned char i;
  14   1      	while(a--)
  15   1      		for(i=100;i>0;i--)
  16   1      			;
  17   1      	}
  18          
  19          char kbscan()          //键盘扫描
  20          	{
  21   1       	unsigned char hang,lie,key;
  22   1      	if(P3!=0x0f)
  23   1      	delay(5);
  24   1      	if(P3!=0x0f)
  25   1      		{
  26   2      		switch(P3&0x0f)
  27   2      				{
  28   3      				case 0x0e:lie=0;break;
  29   3      				case 0x0d:lie=1;break;
  30   3      				case 0x0b:lie=2;break;
  31   3      				case 7:lie=3;break;
  32   3      				}
  33   2      		P3=0xf0;
  34   2      		P3=0xf0;
  35   2      		switch(P3&0xf0)
  36   2      				{
  37   3      				case 0xe0:hang=0;break;
  38   3      				case 0xd0:hang=1;break;
  39   3      				case 0xb0:hang=2;break;
  40   3      				case 0x70:hang=3;break;
  41   3      				}
  42   2      		P3=0x0f;
  43   2      		while(P3!=0x0f);
  44   2      		key=tab[hang][lie];
  45   2      		}
  46   1      	else
  47   1      		key=0;
  48   1      	return (key);
  49   1      	}
  50          
  51          void main()
  52          	{
  53   1      	unsigned char temp;
  54   1      	LCD_initial();
  55   1      	LCD_prints("piaoling");
C51 COMPILER V6.12  SHIYAN                                                                 09/02/2007 09:25:09 PAGE 2   

  56   1      	P3=0x0f;
  57   1      	P0=0xff;
  58   1      	while(1)
  59   1      		{
  60   2      		temp=kbscan();
  61   2      		if(temp!=0)
  62   2      			{
  63   3      			P0=temp;
  64   3      			LCD_set_position(0x40);
  65   3      			LCD_printc(temp);
  66   3      			}
  67   2      		}
  68   1      	}
  69          
  70          
  71          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    203    ----
   CONSTANT SIZE    =     25    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       4
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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