timer_drv.lst

这是atmel公司的89C51SND1C的mp3源程序

C51 COMPILER V6.20c  TIMER_DRV                                                             07/10/2002 15:17:37 PAGE 1   


C51 COMPILER V6.20c, COMPILATION OF MODULE TIMER_DRV
OBJECT MODULE PLACED IN ..\obj\timer_drv.obj
COMPILER INVOKED BY: C:\KEIL\C51\BIN\C51.EXE ..\..\..\lib\timer\timer_drv.c BROWSE INCDIR(..\src\system;..\..\..\lib) DE
                    -FINE(KEIL) DEBUG OBJECTEXTEND PRINT(.\timer_drv.lst) OBJECT(..\obj\timer_drv.obj) 

stmt level    source

   1          /*C**************************************************************************
   2          * $RCSfile: timer_drv.c,v $
   3          *----------------------------------------------------------------------------
   4          * Copyright (c) 2002 Atmel.
   5          *----------------------------------------------------------------------------
   6          * RELEASE:      $Name: DEMO_FAT_1_2_5 $      
   7          * REVISION:     $Revision: 1.2 $     
   8          * FILE_CVSID:   $Id: timer_drv.c,v 1.2 2002/05/24 09:51:14 njourdan Exp $       
   9          *----------------------------------------------------------------------------
  10          * PURPOSE:
  11          * This file contains the timer 0 & timer 1 driver routines.
  12          *
  13          * NOTES:
  14          * Driver Configuration:
  15          *   - T0_X2 & T1_X2 in config.h define as:
  16          *      TRUE:  to set timer clock independant of X2/X1 mode
  17          *      FALSE: to set timer clock dependant of X1/X2 mode
  18          * Global Variables:
  19          *   - None
  20          * FT0_IN and FT1_IN must be used instead of FOSC-FPER for period calculation
  21          *****************************************************************************/
  22          
  23          /*_____ I N C L U D E S ____________________________________________________*/
  24          
  25          #include "config.h"                         /* lib configuration header */
  26          #include "timer_drv.h"                      /* timer driver definition */
  27          
  28          
  29          /*_____ M A C R O S ________________________________________________________*/
  30          
  31          
  32          /*_____ D E F I N I T I O N ________________________________________________*/
  33          
  34          
  35          /*_____ D E C L A R A T I O N ______________________________________________*/
  36          
  37          
  38          
  39          /*F***************************************************************************
  40          * NAME: t0_set_prio
  41          *-----------------------------------------------------------------------------
  42          * PARAMS:
  43          *
  44          * return:
  45          *----------------------------------------------------------------------------
  46          * PURPOSE: 
  47          *   Set the Timer 0 priority interrupt
  48          *----------------------------------------------------------------------------
  49          * EXAMPLE:
  50          *----------------------------------------------------------------------------
  51          * NOTE:
  52          *----------------------------------------------------------------------------
  53          * REQUIREMENTS:
  54          ******************************************************************************/
C51 COMPILER V6.20c  TIMER_DRV                                                             07/10/2002 15:17:37 PAGE 2   

  55          void t0_set_prio (Byte priority)
  56          {
  57   1        if ((priority == 1) || (priority == 3))     /* set LSB priority bit */
  58   1        {
  59   2          IPL0 |=  MSK_ET0;
  60   2        }
  61   1        if ((priority == 2) || (priority == 3))     /* set MSB priority bit */
  62   1        {
  63   2          IPH0 |= MSK_ET0;
  64   2        }
  65   1      }
  66          
  67          
  68          /*F***************************************************************************
  69          * NAME: t1_set_prio
  70          *-----------------------------------------------------------------------------
  71          * PARAMS:
  72          *
  73          * return:
  74          *----------------------------------------------------------------------------
  75          * PURPOSE: 
  76          *   Set the Timer 1 priority interrupt
  77          *----------------------------------------------------------------------------
  78          * EXAMPLE:
  79          *----------------------------------------------------------------------------
  80          * NOTE:
  81          *----------------------------------------------------------------------------
  82          * REQUIREMENTS:
  83          ******************************************************************************/
  84          void t1_set_prio (Byte priority)
  85          {
  86   1        if ((priority == 1) || (priority == 3))     /* set LSB priority bit */
  87   1        {
  88   2          IPL0 |=  MSK_ET1;
  89   2        }
  90   1        if ((priority == 2) || (priority == 3))     /* set MSB priority bit */
  91   1        {
  92   2          IPH0 |= MSK_ET1;
  93   2        }
  94   1      }
  95          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     46    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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