led_flash.lst

keil C51 Hello2事例

C51 COMPILER V7.06   LED_FLASH                                                             12/14/2004 09:37:38 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE LED_FLASH
OBJECT MODULE PLACED IN LED_flash.OBJ
COMPILER INVOKED BY: d:\Keil\C51\BIN\C51.EXE LED_flash.c LARGE OPTIMIZE(6,SPEED) BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          /*------------------------------------------------------------------*-
   2          
   3             LED_flash.C (v1.00)
   4          
   5            ------------------------------------------------------------------
   6             
   7             Simple 'Flash LED' test function.
   8          
   9             COPYRIGHT
  10             ---------
  11          
  12             This code is associated with the book:
  13          
  14             EMBEDDED C by Michael J. Pont 
  15             [Pearson Education, 2002: ISBN: 0-201-79523-X].
  16          
  17             This code is copyright (c) 2001 by Michael J. Pont.
  18           
  19             See book for copyright details and other information.
  20          
  21          -*------------------------------------------------------------------*/
  22          
  23          #include "Main.H"
  24          #include "Port.H"
  25          
  26          #include "LED_flash.H"
  27          
  28          // ------ Private variable definitions -----------------------------
  29          
  30          bit LED_state_G;
  31          
  32          /*------------------------------------------------------------------*-
  33          
  34            LED_FLASH_Init()
  35          
  36            Prepare for LED_Change_State() function - see below.
  37          
  38          -*------------------------------------------------------------------*/
  39          void LED_FLASH_Init(void)
  40             {
  41   1         LED_state_G = 0;
  42   1         }
  43          
  44          
  45          /*------------------------------------------------------------------*-
  46          
  47            LED_FLASH_Change_State()
  48          
  49            Changes the state of an LED (or pulses a buzzer, etc) on a 
  50            specified port pin.
  51          
  52            Must call at twice the required flash rate: thus, for 1 Hz
  53            flash (on for 0.5 seconds, off for 0.5 seconds) must call
  54            every 0.5 seconds.
  55          
C51 COMPILER V7.06   LED_FLASH                                                             12/14/2004 09:37:38 PAGE 2   

  56          -*------------------------------------------------------------------*/
  57          void LED_FLASH_Change_State(void)
  58             {
  59   1         // Change the LED from OFF to ON (or vice versa)
  60   1         if (LED_state_G == 1)
  61   1            {
  62   2            LED_state_G = 0;
  63   2            LED_pin = 0;
  64   2            }
  65   1         else
  66   1            {
  67   2            LED_state_G = 1;
  68   2            LED_pin = 1;
  69   2            }
  70   1         }
  71          
  72          /*------------------------------------------------------------------*-
  73            ---- END OF FILE -------------------------------------------------
  74          -*------------------------------------------------------------------*/


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     16    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =      1    ----
END OF MODULE INFORMATION.


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