ch375ev0.lst

用C51写的U盘串口测试程序

C51 COMPILER V7.50   CH375EV0                                                              10/20/2007 14:51:34 PAGE 1   


C51 COMPILER V7.50, COMPILATION OF MODULE CH375EV0
OBJECT MODULE PLACED IN CH375EV0.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE CH375EV0.C BROWSE DEBUG OBJECTEXTEND

line level    source

   1          /* 2004.03.05
   2          ****************************************
   3          **  Copyright  (C)  W.ch  1999-2004   **
   4          **  Web:  http://www.winchiphead.com  **
   5          ****************************************
   6          **  USB 1.1 Host Examples for CH375   **
   7          **  KC7.0@MCS-51                      **
   8          ****************************************
   9          */
  10          /* CH375作为USB主机接口的程序示例 */
  11          
  12          /* MCS-51单片机C语言的示例程序, U盘数据读写 */
  13          
  14          #include <reg51.h>
  15          #include <string.h>
  16          #include <stdio.h>
  17          
  18          /* 定义CH375命令代码及返回状态 */
  19          #include "CH375INC.H"
  20          /* CH375特性 */
  21          #define CH375_BLOCK_SIZE                64              /* CH375 maximum data block size */
  22          #define CH375_BLK_PER_SEC               8               /* CH375 block per sector, SECTOR_SIZE/CH375_BLOCK_SIZE */
  23          
  24          /* 以下定义适用于MCS-51单片机,其它单片机参照修改,为了提供C语言的速度需要对本程序进行优化 */
  25          #include <reg51.h>
  26          unsigned char volatile xdata    CH375_CMD_PORT _at_ 0xBDF1;     /* CH375命令端口的I/O地址 */
  27          unsigned char volatile xdata    CH375_DAT_PORT _at_ 0xBCF0;     /* CH375数据端口的I/O地址 */
  28          unsigned char xdata                             DATA_BUFFER[512]    _at_ 0x0000;        /* 外部RAM数据缓冲区的起始地址,长度不少于一次读写