skey.lst

语音芯片ISD4004的驱动程序。。。希望对大家有用

C51 COMPILER V8.02   SKEY                                                                  06/02/2008 11:06:07 PAGE 1   


C51 COMPILER V8.02, COMPILATION OF MODULE SKEY
OBJECT MODULE PLACED IN skey.OBJ
COMPILER INVOKED BY: d:\Keil\C51\BIN\C51.EXE skey.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include <main.H>
   2          sbit SCLK165=P3^4;//时钟控制，高电平移位输出
   3          sbit SL165=P3^5; //0:读端口的信息,1:保存端口    S/L,1脚
   4          sbit D165=P3^6;  //输出脚
   5          sbit CS165=P3^7; //片选,0有效,即芯片的15脚clkInhibit 
   6          unsigned int keyin(void)
   7          {
   8   1       unsigned int  key=0;
   9   1       unsigned char i=16; 
  10   1       CS165=1;
  11   1       SL165=0;//读键盘数据
  12   1       delay(100);
  13   1       CS165=0;
  14   1       SL165=1;//保持键盘状态 
  15   1       while(i--)
  16   1       {
  17   2        key=key<<1;
  18   2        if(D165)
  19   2        {key=key+1;}
  20   2        SCLK165=0;
  21   2        delay(50);
  22   2        SCLK165=1;
  23   2       }
  24   1       return (key);
  25   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     69    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       3
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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