| The Embeded System is a kind of computer system with special functions .When it is integrated with communication and network technology ,it will enhance the ability and intelligent of instruments and devices'network and communication .With the constantly developing of the information technology and increasing of the requirement of users ,the Embedded System is entering into all kinds of fields of national product gradually and used extensively .The development of the Test & Control instrument and device based on the embedded system will enforce the ability of communication , intercommunion,data procession and so on , at same time it can extent the application .The paper aims to study a design and technique of the universal electronic test and measure instrument based on a new architecture .The design ideology is from the TSU idea that the Transformation from Special application to Universal is appreciated .A -ccording to the design ,the instrument system could be endowed with more functions aiming to several kinds of universal instruments and devices .The author adopts the method of the embedded system design, based on the basic functions and characteristic,and gives the project's requirement for the embedded operation system , summarized and compared the characteristic and new developments of the EOS for the ARM processor .A kind of design mode of the instrument and device system based on cooperate the ARM920T processor with DSP and FPGA is presented ,for the design requirement of the current instruments and devices .The description and feasibility validate is given for the hardware structure and module units of the system .At same time ,the author gives a discussion for the key technique and a explain for the interface of the operation system ,the core and drivers ,the arithmetic of digital signals procession,the logic and function describtion of CPLD/FPGA, software system and so on ,and give a feasible resolvent and puts it into practice. |
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