Design Method Based On Usb2.0 Portable Mass Data Acquisition System

At present, the technique to convenient and great capacity of data storage become a research and development hotspot s in signal process, which can settle many problem all-right that can't be solved by tradition technology, such as: real-time data sample ,great data samples and storage situation etc,. The text will discuss a kind of design method with modern data storage technology, embedded system design and new computer communication interface technology. And then gives feasible total design frame.The thesis discusses a total design method of the data sample system, which has packet and great data storage capacity, analysis how to solve some technology problem that meeting in design course, and present realization method of each part function of the system. The article puts great emphasis on discussing the performance and features of USB2.0 ,the principium of flash storage, the realization of DSPs(digital signal processors)data sample method, the outline design of application program ,and other problem that found in design process.According to the design requests, main control unit is a DSPs, which integrations 16channels A/D(analog/digital) transform , achieves primarily data gather, and brings control signal ;The sampled data is saved in the FLASH; The interface chip is CYPRESS68013A, which will transfer the data, which stored in flash, to PC under control by program .The application program can realize showing of the data, ease to analysis of data, store and other more dispose. And others, these are some necessary periphery circuits in the system. Once the system would completed , which have follow functions: combine multi-channels high speed data sample, most 16 channel; great capacity of storage, much up to 64M;USB2.0 interface, Simple PnP (plug-and-play) , rates up to 480 Mbps; high integration ;take facility etc. And the same time, the system can be used a moving storage by rework program. When the system would completed, it has first-rate practicable feature and worthy popularizing.In the proceeding of the project design, to the function and characteristics of LF24017 DSPs, the function characteristic and program method of K9F6408U0C FLASH, and the Specification of USB2.0 (The Universal Serial Bus) etc , proceeded thorough analysis. And according to the design requests, I designed some interfaceprograms for the system.Be limited by time and the energy, the design only accomplish some functions, and still having some parts will have been needed more thorough research, such as: the development of functions in application and the design of appliance program etc.