initpll.lst

用C51单片机实现的MP3播放器的c代码程序。

C51 COMPILER V7.20   INITPLL                                                               05/11/2005 08:47:25 PAGE 1   


C51 COMPILER V7.20, COMPILATION OF MODULE INITPLL
OBJECT MODULE PLACED IN .\INITPLL.obj
COMPILER INVOKED BY: d:\Keil\C51\BIN\C51.EXE ..\SND.C51\INITPLL.C BROWSE DEBUG OBJECTEXTEND PRINT(.\INITPLL.lst) OBJECT(
                    -.\INITPLL.obj)

line level    source

   1          #ifndef _CHIPSOURCE_DEFINE
   2           #include "CHIPSOURCE.c"
   3          #endif
   4          
   5          void InitPLL(void);
   6          
   7          void InitPLL(void)
   8          {
   9   1      //  for 20MHz to 192MHz   R=96-1 0x5f  N=10-1  0x09
  10   1      
  11   1              PLLNDIV=0x09;                                   //set N
  12   1              PLLRDIV=0x5f;
  13   1              PLLCON=(PLLRDIV&0x03)<<6;               //set R0..1
  14   1              PLLRDIV=PLLRDIV>>2;                             //set R2..9
  15   1              PLLCON=PLLCON&0xf7;                             //clear PLLRES bit
  16   1              PLLCON=PLLCON|0x02;                             //set PLLEN bit
  17   1              #ifdef DEBUG
                              printf("waiting for PLL running...");
                      #endif
  20   1              while (!(PLLCON&0x01));
  21   1              #ifdef DEBUG
                              printf("ok\n");
                      #endif
  24   1      }
  25          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     37    ----
   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)