【導讀】輔助設計、計算機輔助制造、計算機輔助測試和計算機輔助工程的概念發(fā)展而。EDA技術就是以計算機為工具，設計者在EDA軟件平臺上，用硬件描述語言HDL完成設計文件，標芯片的適配編譯、邏輯映射和編程下載等工作。了應用電子技術、計算機技術、信息處理及智能化技術的最新成果，進行電子產(chǎn)品的自動設計。現(xiàn)在對EDA的概念或范疇用得很寬。包括在機械、電子、通信、航空航天、化工、礦產(chǎn)、生物、醫(yī)學、軍事等各個領域，都有EDA的應用。目前EDA技術已在各大公司、企事業(yè)單位和科研教學部門。例如在飛機制造過程中，從設計、性能測試及特性分析直到飛行模擬，都可能涉及到EDA. 本文所指的EDA技術，主要針對電子電路設計、PCB設計和IC設計。EDA設計可分為系統(tǒng)級、電路級和物理實現(xiàn)級。與仿真，同進還可以進行PCB自動布局布線，可輸出多種網(wǎng)表文件與第三方軟件接口。其最新版本為multiSIM7，目前普遍使用的是multiSIM2021，相對于其它EDA. MATLAB產(chǎn)品族被廣泛應用于信號與圖像處理、控制系統(tǒng)設

　　

【正文】 ters。 Gate Ensemble Gate arrays wiring manometers。 Themselves Planner layout tools. Every other EDA software development pany also provide its own layout wiring tools. (5)physical validation tool Physical validation tool includes layout design tool, territory validation tool, territory extraction tools, etc. 11 This aspect is strong, its Cadence Dracula, Virtuso, Vampire such physical tools have many users. (6) analog circuits emulator Front speak simulator is mainly directed against the digital circuit, for analog circuit simulation tools, monly used SPICE, this is the only choice. Just choose different panies, like the MiceoSim SPICE, the Soft Meta PSPICE HSPICE etc. Avanti HSPICE is now pany acquisitions. In numerous SPICE, as IC design, and its HSPICE simulation model, the accuracy is high. PLD design tools PLD (Programmable Device) is a kind of questions by users according to need itself Logic functions of tectonic digital integrated circuit. At present basically has two big type: PLD (CPLD) and Complex Programmable Gate Array FPGA (Field). Their basic design method is by EDA software, with the principle diagram, state machine, Boolean expressions, hardware description language and other methods, generating the corresponding target files, finally using programmer or download cable, the target device implements. Production PLD manufacturers many, but the most representative of PLD manufacturer for Altera, Xilinx and Lattice pany. PLD development tool, generally by ponents manufacturers to provide, but along with the increasing device, the scale of the software, at present the plexity increases by special software pany with device manufacturer use, launch powerful design software. Introduce below main ponents manufacturers and development tools. (1)ALTERA: after 199039。s develops very quickly. The main products are: MAX3000/7000, FELX6K / 10K, APEX20K, ACEX1K, Stratix etc. Its development tools MAX + PLUS II is more successful PLD development platform, the latest again launched Quartus II development software. Altera pany provides more forms of design input method, binding thirdparty VHDL prehensive tools, such as: integrated software FPGA Express, such ModelSim Leonard, simulation software. (2)the inventor of the ILINX: FPGA. Product categories with plete, basically have: XC9500/4000, Coolrunner (XPLA3), Spartan, Vertex etc series, its biggest Vertex II Pro device has reached eight million door. Develop software for the Foundation and ISE. Generally speaking, people in Europe with Xilinx, in Japan and the asiapacific region, with ALTERA more people in the United States is equal shares. Global PLD/FPGA products by 60% is Altera and Xilinx provide. Can speak and Altera Xilinx together determine PLD technology development direction. (3)Vantis: Lattice is Lattice ISP (In) technical Programmability System inventors. The ISP technology greatly promoted the development of the product, and PLD XILINX ALTERA and pared, its development tools than ALTERA and XILINX lower. Medium scale PLD more characteristics, largescale PLD petitiveness quite good enough (Lattice no based on lookup table technology of largescale FPGA), 1999 launch programmable analog device, 1999 acquisition Vantis (original AMD affiliates), the thirdleading programmable logic device supplier. December 2021 acquisition Agere pany (formerly Lucent microelectronics department) FPGA department. The main products are ispLSI2021/5,000/8,000, MACH4/5. (4)ACTEL: the melting wire (onetime burning) PLD leader. Because the melting silk PLD resist radiation resistant, high temperature, low power consumption, high speed, so in their military and aerospace level there is great advantage. ALTERA and is generally not sortie XILINX military and aerospace level 12 market. (5)Quicklogic: professional PLD/FPGA pany, by the disposable anti melt silk process is given priority to, in China39。s regional sales is not big. (6)Lucent: main characteristic is many used munication field dedicated IP core, but PLD/FPGA Lucent39。s main business, not in China to use very few people. (7)Medium scale ATMEL: PLD did well. ATMEL did some Xilinx patible with Altera and movies, but on quality and original manufacturers still has some gaps, in high reliability products use less, multipurpose at the low end products. (8) Clear Logic: PLD/FPGA big pany patible chips which can be your design, not programming, onetime cure batch production cost is low. (9)the WSI: production PSD (SCM programmable peripheral chip) products. This is a special kind of PLD, such as the latest PSD8xx, PSD9xx integrated PLD, an EPROM, Flash, and to support the ISP (online programming), integration, mainly used for high with singlechip work. BTW: PLD (programmable logic device) is a kind of can replace pletely 74 series and GAL, the PLA39。s new circuits, so long as has the digital circuit basis, can use puter, can undertake PLD development. PLD online programming ability and strong development software, make engineers can days, or even minutes can be pleted before a few weeks to finish the job, can be millions of door of plex design integrated in a single chip inside. PLD technology in developed countries has bee electronic engineers must technology. Other EDA softwares (1) the VHDL language: superfast integrated circuit Hardware description language (VHSIC Hardware Deseription Languagt, abbreviation VHDL), is a standard IEEE design language. It originated from the United States defense department puts forward a hyperfast Integrated circuits (to prompt the vehicle was done, abbreviation VHSIC) plan, ASIC design and PLD design of a main input tools. (2) Veriolg HDL: is Verilog pany launched hardware description language, in ASIC design with VHDL language in equal measure. (3) other EDA software such as specially for the microwave