stepper.lst

Embedded C 这本书的范例光碟程式

C51 COMPILER V6.21  STEPPER                                                                01/23/2002 18:09:29 PAGE 1   


C51 COMPILER V6.21, COMPILATION OF MODULE STEPPER
OBJECT MODULE PLACED IN STEPPER.OBJ
COMPILER INVOKED BY: C:\KEIL\C51\BIN\C51.EXE STEPPER.C OPTIMIZE(6,SIZE) DEBUG OBJECTEXTEND

stmt level    source

   1          /*------------------------------------------------------------------*-
   2          
   3             Stepper.C (v1.00)
   4          
   5            ------------------------------------------------------------------
   6             
   7             Simple stepper control functions for robot.
   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 "Stepper.h"
  27          
  28          // ------ Public variable definitions ------------------------------
  29          
  30          bit Motor_L;
  31          bit Motor_R;
  32          
  33          // ------ Private variable definitions -----------------------------
  34          
  35          static bit Stepper_state_G;
  36          
  37          /*------------------------------------------------------------------*-
  38          
  39            STEPPER_Init()
  40          
  41          -*------------------------------------------------------------------*/
  42          void STEPPER_Init(void)
  43             {
  44   1         Stepper_state_G = 0;
  45   1      
  46   1         Motor_L = 0;
  47   1         Motor_R = 0;
  48   1         }
  49          
  50          
  51          /*------------------------------------------------------------------*-
  52          
  53            STEPPER_Update()
  54          
  55            Controls two stepper motors.  
C51 COMPILER V6.21  STEPPER                                                                01/23/2002 18:09:29 PAGE 2   

  56          
  57          -*------------------------------------------------------------------*/
  58          void STEPPER_Update(void)
  59             {
  60   1         // Step the motors, as required
  61   1         if (Stepper_state_G == 1)
  62   1            {
  63   2            Stepper_state_G = 0;
  64   2      
  65   2            if (Motor_L == 1)
  66   2               {
  67   3               Motor_L_pin = 1;
  68   3               }
  69   2      
  70   2            if (Motor_R == 1)
  71   2               {
  72   3               Motor_R_pin = 1;
  73   3               }
  74   2            }
  75   1         else
  76   1            {
  77   2            Stepper_state_G = 1;
  78   2      
  79   2            Motor_L_pin = 0;
  80   2            Motor_R_pin = 0;
  81   2            }
  82   1         }
  83          
  84          /*------------------------------------------------------------------*-
  85            ---- END OF FILE -------------------------------------------------
  86          -*------------------------------------------------------------------*/


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     30    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =      3    ----
END OF MODULE INFORMATION.


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