使用VOIP技术.能够无连接接通远程用户

关于usb的源码ScanUSB-on usb the source ScanUSB

usb的程序与编程，很不错的，bulk和同步传输。-usb procedures and programming, very good, the bulk transmission and synchronization.

usb开发系列文裆，内涵有usb设计图，和程序开发-usb Development Series text crotch, meaning there are usb design, and program development

usb赚串口的驱动程序，很好用的，需要的下吧。-usb serial port driver to make good use of, the needs of the next bar.

用CY7C630芯片做USB转串口的汇编原程序,里面有编译生成的hex文件.写入芯片就可使用.最高波特率为24-do with CY7C630 chip USB to Serial compilation of the original procedure, which has compiled documents generated hex. The chips can be used. The highest baud rate for 24

USB通信协议和U盘固件程序实现与调试-U disk USB communication protocols and procedures for implementation and debugging firmware

闻亭仿真器驱动 TDSS510 JTAG EMMLATOR-Wen Ting-driven simulator TDSS510 JTAG EMMLATOR

USB的具体细节和他的使用方法还有接口电路设计-USB

波形发生器isotransferTARGET-waveform generator isotransferTARGET

USB CDC implementation on Silabs MCU