timer_drv.lst

基于AT89C51SND1的MP3的程序设计(包括播放mp3和录音功能)

C51 COMPILER V7.06   TIMER_DRV                                                             05/05/2005 12:12:02 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE TIMER_DRV
OBJECT MODULE PLACED IN timer_drv.obj
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE lib_mcu\timer\timer_drv.c OPTIMIZE(7,SPEED) BROWSE INCDIR(.\modules\system;
                    -.\;.\;.\lib_refd) DEFINE(KEIL) DEBUG OBJECTEXTEND PRINT(.\timer_drv.lst) OBJECT(timer_drv.obj)

stmt level    source

   1          /*C**************************************************************************
   2          * NAME:         timer_drv.c
   3          *----------------------------------------------------------------------------
   4          * Copyright (c) 2003 Atmel.
   5          *----------------------------------------------------------------------------
   6          * RELEASE:      snd1c-refd-nf-4_0_3      
   7          * REVISION:     1.2     
   8          *----------------------------------------------------------------------------
   9          * PURPOSE:
  10          * This file contains the timer 0 & timer 1 driver routines.
  11          *
  12          * NOTES:
  13          * Driver Configuration:
  14          *   - T0_X2 & T1_X2 in config.h define as:
  15          *      TRUE:  to set timer clock independant of X2/X1 mode
  16          *      FALSE: to set timer clock dependant of X1/X2 mode
  17          * Global Variables:
  18          *   - None
  19          * FT0_IN and FT1_IN must be used instead of FOSC-FPER for period calculation
  20          *****************************************************************************/
  21          
  22          /*_____ I N C L U D E S ____________________________________________________*/
  23          
  24          #include "config.h"                         /* lib configuration header */
  25          #include "timer_drv.h"                      /* timer driver definition */
  26          
  27          
  28          /*_____ M A C R O S ________________________________________________________*/
  29          
  30          
  31          /*_____ D E F I N I T I O N ________________________________________________*/
  32          
  33          
  34          /*_____ D E C L A R A T I O N ______________________________________________*/
  35          
  36          
  37          
  38          /*F***************************************************************************
  39          * NAME: t0_set_prio
  40          *-----------------------------------------------------------------------------
  41          * PARAMS:
  42          *
  43          * return:
  44          *----------------------------------------------------------------------------
  45          * PURPOSE: 
  46          *   Set the Timer 0 priority interrupt
  47          *----------------------------------------------------------------------------
  48          * EXAMPLE:
  49          *----------------------------------------------------------------------------
  50          * NOTE:
  51          *----------------------------------------------------------------------------
  52          * REQUIREMENTS:
  53          ******************************************************************************/
  54          void t0_set_prio (Byte priority)
C51 COMPILER V7.06   TIMER_DRV                                                             05/05/2005 12:12:02 PAGE 2   

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


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)