Design Of Data Transmission System Based On USB2.0

Data transmission system major in data acquire,transfer and storage,it is the basis of algorithm processing. Now, many algorithm transfer data to a computer through the computer interface, accomplish their work with large storage capacity and the help of high computing speed of the computer.Traditional computer interface was expensive and discommodious in data transmission.This dissertation adopts a method to build all data transmission system with USB2.0 interface. This dissertation takes"TD-LTE OVCDMA algorithm"system as the study object, and designs lower computer hardware and PC software of data transmission system based on CY7C68013.Firstly,the dissertation introduces some basic concepts of USB2.0 agreement,including USB bus topology, USB data communication structure and four types of USB transfer. Secondly,the dissertation analyzes USB2.0 agreement's characteristics and principles of work and selects design proposals. According to TD-LTE OVCDMA algorithm for data transmission and processing of the actual needs and parameter requests, the dissertation uses CY7C68013 as interface chip.On the hardware system,the dissertation analyzes connection chip structures and operating features about USB2.0 agreemems,it completes hardware circuit design proposals about the data transmission between the computer and lower computer. Including: power circuit, EEPROM circuit, clock circuit, Slave FIFO interface circuit and other hardware circuit and realization.On the software system, the dissertation designes the firmware and the firmware download device driver. Including: register configuration, design of Slave FIFO mode, initialization of TD-Init function and the firmware downloads device drivers,also interface , bulk transfer of data, synchronous transmission of data.