ps2.lst

s52单片机对PS2键盘的输入解码

C51 COMPILER V7.06   PS2                                                                   10/08/2006 16:54:52 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE PS2
OBJECT MODULE PLACED IN ps2.OBJ
COMPILER INVOKED BY: D:\keil 7.06\C51\BIN\C51.EXE ps2.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          /*==================================================
   2            由于每次键盘上电或复位后都会自检，然后发出0xAA到PC
   3            若每次采集33次中断数据则会出现一点小问题，我的解决
   4            办法是只利用收集到的中间11位数据
   5            =================================================*/
   6          #include<reg51.h>
   7          
   8          #define uchar unsigned char
   9          
  10          sbit Clk=P3^2;                  //时钟线接在P32
  11          sbit Dat=P1^0;                  //数据线接在P10
  12          
  13          uchar Degree=0;
  14          uchar Data=0;
  15          
  16          void Get_data(void) interrupt 0 using 1
  17          {
  18   1       if((Degree>11)&&(Degree<20))
  19   1              {
  20   2                      Data=Data>>1;
  21   2                      if(Dat){Data|=0x80;};           
  22   2              }                                          //只用采集到的中间11位的八位数据
  23   1      
  24   1       Degree++;
  25   1       if(Degree>=33)
  26   1              {Degree=0;
  27   2               P2=Data;
  28   2               }             //32次后重新计数
  29   1      }
  30          
  31          
  32          void main(void)
  33          {
  34   1       IT0=1;
  35   1       EA=1;
  36   1       EX0=1;
  37   1       while(1); 
  38   1      
  39   1      }
  40          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     57    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      2    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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