rs232到usb的转换器host

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

51+ch375读写U盘超精简源程序,挺不错的说-51+ Ch375 read U disk source ultra-streamlined, very well said

usb视频的官方标准！-usb the official video standard!

USB接口驱动程序-The USB inerface driver program

USB型指纹采集仪的设计与实现-USB Fingerprint Acquisition Instrument Design and Implementation

USB2.0的通信协议，详解，好东西，来自网络，非原创 -USB2.0 communication protocol, detailed, good things, from the network, non-original

汇编语言写的ez-usb fx2 固件程序传输带宽480M/S-assembly language to write the ez-usb accordance firmware transmission bandwidth of 480/S

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

some examples of step motor control by EZUSB

High volume USB 2.0 devices will be designed using ASIC technology with embedded USB 2.0 support. For full-speed USB devices the operating frequency was low enough to allow data recovery to be handled in a vendors VHDL code, with the ASIC vendor providing only a simple level translator to meet the USB signaling requirements. Today s gate arrays operate comfortably between 30 and 60 MHz. With USB 2.0 signaling running at hundreds of MHz, the existing design methodology must change.