AT89C51SND1 SPI原程序，相于USB的。

usb2.0芯片68013的设备驱动程序,可以很可以实现对68013的各种操作，并且很容易修改以满足自己的需求。-68013 chip USB 2.0 device driver, can be achieved for the various operational 68,013, and easily modified to meet their demands.

usb通用驱动 驱动通用的usb设备 vc环境下-generic usb driver usb generic device driver vc environment

基于philip的arm7芯片214x的usbdma应用的上位机程序，驱动编好usb的程序，就可直接调用此程序-214x chip based on philip s arm7 the usbdma applications PC, driver usb to compiling the program, you can call this procedure directly

PDIUSBD12中文手册-PDIUSBD12 Chinese Manual

凌阳61 串口和usb isp在线调试程序-Sunplus 61 serial and usb isp-line debugger

usb协议的正式规范，必备-usb agreement formalized Obligatory

Cy3663的USB主机固件程序-Cy3663 the USB Host Firmware

DOS下USB驱动-DOS USB drive

开发USB实验系统比较纤细的资料。用的是372，USB从方式。支持IAP功能。-USB experimental system developed relatively slim information. Using a 372, USB from the way. IAP support functions.

mp3设计程序资料，采用c语言编写。 README file for yampp-3 source code 2001-05-27 This is the current state of the yampp-3 source code, 2001-05-27. This code is intended to run on Rev. B of the yampp-3 PCB, but can ofcourse be used on compatible systems as well. It still uses the "old" song selection system as the yampp-2. However, the disk handling routines has improved a lot and the obviosly, the new VS1001 handling has been put in. The codesize is almost at it s maximum at 1F40 bytes. A .ROM file is included if you don t have the compiler set up. For now, the documentation is in the code- mp3 programming cook book in C. README file for yampp-3 source code 2001-05-27 This is the current state of the yampp-3 source code, 2001-05-27. This code is intended to run on Rev. B of the yampp-3 PCB, but can ofcourse be used on compatible systems as well. It still uses the "old" song selection system as the yampp-2. However, the disk handling routines has impr