EDA technology and softwareEDA is Electronic Design Automation (Electronic Automation) is the abbreviation of themselves, in the early 1990s from computer aided Design (CAD), computer aided manufacturing (CAM), computer aided testing (CAT) and computer aided engineering (CAE) development of the concepts and come.EDA technology is on the computer as the tool, the designer in EDA software platform, with VHDL HDL finish design documents, then by the computer automatically logic compilation, reduction, division, comprehensive, optimization, layout and wiring and simulation for a particular goal chips, until the adapter compilation, logic mapping and programming download, etc.1. EDA technology conceptsEDA technology is in electronic CAD technology developed on the basis of computer software system by means of computer for working platform, shirt-sleeve application of electronic technology, computer technology and information processing and intelligent technology to the latest achievements of electronic products, the automatic design.Using EDA tools, electronic stylist can be from concept, algorithm, agreement, etc, begin to design your electronic system a lot work can be finished by computer and electronic products can be from circuit design, performance analysis to design the IC territory or PCB layout the whole process of the computer automatically complete the processing.Now on the concept of using EDA or category very wide. Included in machinery, electronics, communication, aerospace, chemical, mineral, biology, medicine, military and other fields, have EDA applications. Current EDA technology has in big companies, enterprises, institutions and teaching research departments extensive use. For example in the aircraft manufacturing process, from design, performance testing and characteristic analysis until a flight simulator, all may involve EDA technology. Globalization-the EDA technology, mainly in electronic circuit design, PCB design and IC design.EDA can be divided into system level and circuit-level and physical implementation level.2. EDA softwareEDA tools to emerge in endlessly, now entering into China and extensive influence of EDA software are: multiSIM7 (original EWB the latest version), PSPICE OrCAD, PCAD, Viewlogic Protel was little, Synopsys, LSIIogic, MicroSim Cadence, etc. These tools are strong function, generally can be used in several aspects, such as many software can undertake circuit design and simulation, with into and can be automatically PCB layout wiring, output various nets list document with a third party software interface.According to the main function below or main applications, divided into circuit design and simulation tools, PCB design software, IC design software and PLD design tools and other EDA software, simple introduction.(1)Electronic circuit design and simulation toolsWe may have used test plate or other things has produced some electronic making to carry on the practice. But sometimes, we will find it to have a lot of questions, didnt think, so they wasted a lot of our time and materials. And increases product development cycle and lasted product time-to-market transforms product lose market competitive advantage. Have to use electric iron test plate can know the results of method? Conclusion there is, this is circuit design and simulation technology.Say to the electronic circuit design and simulation tools of this technology, without mentioning America, have to mention their plane design why has high efficiency. Before our finalize the design a medium-sized plane design from the draft to the detailed design to the wind tunnel test to finally gives a picture to the actual operation, the cycle is about to 10 years. The United States is 1 year. Why is there such a huge gap? Because America in the design most uses is the virtual simulation technology, and the years of accumulation of various wind tunnel test parameters input computer, then through computer programming compile a virtual environment of software, and make it can automatic game com ponent related formula and call after long term accumulated input computer related experience parameters. Thus, as long as the aircraft shape program data in the virtual wind tunnel test software, where unreasonable have changes there, until the best effect, the efficiency high, end as long as natural again in the actual environment test several times look for shortage can finalize the design, from their Boeing 747 to us F16 are using this method. Aerodynamically data by senior experts to provide, software developers is IBM, aircraft design engineer just using simulation software in computer platform of various simulative debugging can. Similarly, they many other things are adopted such similar method, from large to small, from complex to simple, even including the design of furniture and composition, just specific software different contents. In fact, they invented the first generation of computers is this purpose (it is to effi