Research Of USB3.0 HUB Based On 10GE Network

In recent years,with the development of network transmission technology and the wide application of USB interfaces,network transmission based on data transmitted by USB interface has become more and more important.This paper introduces the research of USB3.0HUB based on 10GE network,realizes the local data transmission through the USB interface,achieving high speed and low latency.In this paper,a remote SuperSpeed USB hub scheme based on 10GE network is proposed.In this system,USB 3.0 and USB 2.0 link layer controllers are implemented.Data are transmitted through PIPE and ULPI interfaces respectively.PIPE interfaces use 250MHz clock to transmit 16-bit data,ULPI interfaces use 60MHz clock to transmit 8-bit data.The protocol layer logic of USB 3.0 and USB 2.0 is implemented.It supports four transmission modes:control transmission,interrupt transmission,synchronous transmission and block transmission,and transfers transaction package,data package,link management package and synchronous timestamp package.The PIPE interface data and ULPI interface data are processed synchronously by asynchronous FIFO,and packaged on one FPGA for network transmission,and unpacked on the,other.Field Programmable Gate Array(FPGA)and USB 3.0 Physical Layer Transceiver are used to pack and unpack USB data between host and device in real time,and transmit it through network.Field Programmable Gate Array(FPGA)and USB 3.0 physical layer transceiver are connected through FMC interface.Therefore,this paper implements the link layer and protocol layer of USB3.0 based on FPGA,implements all transmission mode protocols of USB3.0,and realizes the network transmission stream of SuperSpeed data.The test results show that a variety of local USB devices can communicate with remote host using USB interface,which has obvious advantages over traditional USB Ethernet server in transmission speed.This paper realizes the data transmission between the host and the device through the network.By using the chip design of the FPGA prototype system,the wireless transmission of VR data can be realized.