The Research Of Communications And Interface-driven Based On USB

At present, the Universal Serial Bus has become the mainstream communication interface with the PC and peripheral equipments and has been used in the field of peripheral equipments and industry controlbecause it has fast transmission speed,as well as it supports for plug and play and hot plug,expands easily,takes up less resources,and has abundant power supply mode and so on. According to research in USB communication and interface,it takes full advantage of the superiority of its transmission to improve the data-transmission's speed,accuracy and reliability in order to play a better role in practice.First,according to studying the USB bus technical architecture,a USB data acquisition system has been designed with a cost-effective USB chip through comprehensive comparison,then,the overall design concept as well as the hardware design and the software design has been detailed.For the hardware, the USB interface chip CY7C68013 and the analog-digital convsersion chip MAX 197 have been used in the data acquisition circuit design,for the software, the CY7C68013 firmware and the GPIF mode waveform have been designed,in addition,the USB data acquisition system for WDM drivers has been built with the aid of DriverStudio,and the host computer application has been designed with the aid of Visual C++ 6.0.