atmelusbci.lst

用89C51SND1C实现的USB存储器的代码,包括USB通信和FLASH的读写操作.

C51 COMPILER V6.23a  ATMELUSBCI                                                            05/31/2003 10:20:29 PAGE 1   


C51 COMPILER V6.23a, COMPILATION OF MODULE ATMELUSBCI
OBJECT MODULE PLACED IN atmelusbci.OBJ
COMPILER INVOKED BY: E:\Program Files\keil\C51\BIN\C51.EXE atmelusbci.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include <REGSND1.H>
   2          #include "atmelusbci.h"
   3          
   4          #define OSCclk  16
   5          
   6          int AtmelUSBInit(unsigned char NDIV,unsigned int RDIV,unsigned char USBCD)
   7          {
   8   1              int i;
   9   1              //set PLL CLK
  10   1              
  11   1      //      PLLclk=(OSCclk*(RDIV+1))/(int)(NDIV+1);
  12   1      //      USBclk=PLLclk/(int)(USBCD+1);
  13   1              
  14   1      //      CKCON|=X2;//Set to select 6 clock periods per machine cycle
  15   1              PLLNDIV =       0x7f&NDIV;//set NDIV
  16   1              PLLCON  |=      (0x3&RDIV)<<6;//set RDIV
  17   1              PLLRDIV =       (0x3ff&RDIV)>>2;
  18   1      
  19   1              USBCLK=USBCD&0x03;
  20   1      
  21   1              PLLCON&=(~PLLRES);//Enable PLL
  22   1              PLLCON|=PLLEN;
  23   1      
  24   1      
  25   1              //USBCON Register
  26   1              USBCON&=(~USBE);
  27   1              for(i=0;i<3000;i++)
  28   1              USBCON|=USBE;
  29   1              return(0);
  30   1      }
  31          
  32          void EpEnable(void)
  33          {
  34   1      
  35   1              UEPNUM=0x00;//Ep0 as control Endpoint
  36   1              UEPCONX=0x80;
  37   1      
  38   1              UEPNUM=0x01;//Ep1 as Bulk-in Endpoint
  39   1              UEPCONX=0x86;
  40   1      
  41   1              UEPNUM=0x02;//Ep2 as Bulk-out Endpoint
  42   1              UEPCONX=0x82;
  43   1      
  44   1              UEPRST=0x07;//rest FIFO 
  45   1              UEPRST=0x00;
  46   1      
  47   1              UEPIEN=0x07;//Endpoint Interrupt Enable
  48   1      
  49   1              USBIEN|=EEOFINT;
  50   1              USBADDR=FEN;//Function Enable
  51   1              
  52   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
C51 COMPILER V6.23a  ATMELUSBCI                                                            05/31/2003 10:20:29 PAGE 2   

   CODE SIZE        =    105    ----
   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)