key.lst

基于Keil uVision2平台的C51控制温度老化试验箱的源代码。 1、温度传感器采集温度 2、传感器信号传入 ADC电路 3、经AT89C52单片机的处理分析输出控制 4、通过继电器控制

C51 COMPILER V7.02b   KEY                                                                  01/10/2008 11:39:27 PAGE 1   


C51 COMPILER V7.02b, COMPILATION OF MODULE KEY
OBJECT MODULE PLACED IN key.OBJ
COMPILER INVOKED BY: D:\Keil\C51\BIN\C51.EXE key.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          ////////////////////////////////////*/
   2          /*                                                                      */
   3          /*              Hot_Box                                         */
   4          /*              Version_2                                       */
   5          /*      AHTL_2007_11                    */
   6          /*                                                                      */
   7          /*                                                                      */
   8          /*              KEY.C                                           */
   9          /*                                                                      */
  10          ////////////////////////////////////*/
  11          #include <absacc.h>
  12          #include <reg52.H>
  13          #include <key.h>
  14          #include <lcd.h>
  15          //
  16          //               2 X 16 LCD display port and BCD port each bit function
  17          //
  18          //                                                         LCD PORT         BCD PORT
  19          //
  20          //         P17 P16 P15 P14 P13 P12 P11 P10 ___ NC           SEL1
  21          //          |   |   |   |   |   |   |_________ NC           SEL2
  22          //          |   |   |   |   |   |_____________ RS           NC
  23          //          |   |   |   |   |_________________ Enable1  NC
  24          //          |   |   |   |_____________________ D4           D4
  25          //          |   |   |_________________________ D5           D5
  26          //          |   |_____________________________ D6           D6
  27          //          |_________________________________ D7           D7
  28          //
  29          
  30          /*--------------------------------------------------------*/
  31          unsigned char keyprow_buf;
  32          char _scan_key ()
  33          {       
  34   1          unsigned char i = 0;
  35   1          if (keyprow_buf)
  36   1              {
  37   2                      P1 = 0xf6;      //sel1=0;
  38   2                      keyprow_buf = 0;
  39   2                      _delay500us(8);
  40   2                      switch(P1&0xf0)
  41   2                              {
  42   3                      case 0x50 :
  43   3                      i = KP_COPY;
  44   3                      break;
  45   3                      case 0x70 :
  46   3                      i = KP_MENU;
  47   3                      break;
  48   3                      case 0xb0 :
  49   3                      i = KP_EXIT;
  50   3                      break;
  51   3                      case 0xd0 :
  52   3                      i = KP_SAVE;
  53   3                      break;
  54   3                      case 0xe0 :
  55   3                      i = KP_ENTER;
C51 COMPILER V7.02b   KEY                                                                  01/10/2008 11:39:27 PAGE 2   

  56   3                      break;
  57   3                              }
  58   2                      if(i==KP_SAVE)
  59   2                      {
  60   3                      _delay500us(200);
  61   3                              }
  62   2                      else
  63   2                              {
  64   3                      while ((P1&0xf0) != 0xf0)
  65   3                                      {
  66   4                                      _delay500us(32);
  67   4                              }
  68   3                              }
  69   2              }
  70   1              else
  71   1                      {
  72   2                      P1 = 0xf5;  //sel2=0
  73   2                      keyprow_buf = 1;
  74   2                      _delay500us(8);
  75   2                      switch(P1&0xf0)
  76   2                              {
  77   3                              case 0x70 :
  78   3                              i = KP_LEFT;
  79   3                              break;
  80   3                              case 0xb0 :
  81   3                              i = KP_RIGHT;
  82   3                              break;
  83   3                              case 0xd0 :
  84   3                              i = KP_INC;
  85   3                              break;
  86   3                              case 0xe0 :
  87   3                              i = KP_DEC;
  88   3                              break;
  89   3                              }
  90   2                      while ((P1&0xf0) != 0xf0)
  91   2                      {
  92   3                      _delay500us(32);
  93   3                              }
  94   2              }
  95   1          P1 = 0xf7;
  96   1          _delay500us(16);
  97   1          return i;
  98   1      }
  99          /*-------------------------------------------------------------------------*/


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    167    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      1       1
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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