mcu_keypad.lst

mp3c程序源码

C51 COMPILER V7.50   MCU_KEYPAD                                                            11/18/2005 21:31:24 PAGE 1   


C51 COMPILER V7.50, COMPILATION OF MODULE MCU_KEYPAD
OBJECT MODULE PLACED IN MCU_KEYPAD.OBJ
COMPILER INVOKED BY: d:\Keil\C51\BIN\C51.EXE MCU_KEYPAD.C LARGE BROWSE

line level    source

   1          /*  Copyright (C) 1996-2005 Brilliant Ideal Electronics. All rights reserved.
   2                  MP3_Player+USB_Disk V3.0 Edit by JMBIE STUDIO 2005.03
   3          */
   4          
   5          
   6          #include "MCU_KEYPAD.H"
   7          #include "MP3_PLAYER.H"
   8          #include "AT89C51SND1_REG.H"
   9          #include "MCU_UART.H"
  10          #include "LCD.H"
  11          
  12          void KeyBoardInit()
  13          {
  14   1              P1 = 0x0f;
  15   1              KBCON = 0x00;
  16   1              IEN1 |=EKB;     
  17   1      
  18   1      }
  19          
  20          void key_interrupt() interrupt 11
  21          {
  22   1                      unsigned char i,j,k;
  23   1                      EA = 0; 
  24   1                      IEN1 &= (~EKB);            //Disable KeyBoard Interrupt
  25   1                      k=KBSTA & 0x0f;
  26   1      
  27   1                      for(j=0;j<50;j++)                  //Delay about 20ms
  28   1                        for(i=0;i<200;i++);
  29   1      
  30   1              if(k==(~P1 & 0x0f))
  31   1                      switch (k)
  32   1                      {                                                                    
  33   2                              case 1 : Func(); break;                 //Call the MP3-Player Functions
  34   2                              case 2 : Previous(); break;
  35   2                              case 4 : Next(); break;
  36   2                              case 8 : PlayPause(); break;
  37   2                              default : break;
  38   2                      }
  39   1       
  40   1                      IEN1 |= EKB;              //Enable KeyBoard Interrupt
  41   1                      EA = 1; 
  42   1                      k=KBSTA;                                                          
  43   1                      return;
  44   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    153    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----       1
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.

C51 COMPILER V7.50   MCU_KEYPAD                                                            11/18/2005 21:31:24 PAGE 2   


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