boutique jewelry wholesale The development trend of EDA technology and countermeasures that should be adopted

jewelry repair tools wholesale The development trend of EDA technology and countermeasures that should be adopted
"EDA technology" is based on circuit instances. The interpretation of many interfaces and knowledge is integrated into specific circuits. The following is the development trend and countermeasures that I compiled by EDA technology. Welcome to refer to it!
1. The concept of EDA technology
EDA technology is a computer software system developed on the basis of electronic CAD technology It refers to the latest achievements of computer technology, computer technology, information processing and intelligent technology, and the automatic design of electronic products is combined with computers as the working platform.
In using the EDA tool, electronic designers can start designing electronic systems from concepts, algorithms, protocols, etc., and a large number of tasks can be completed through the computer. The computer is automatically processed on the computer throughout the process.
The concept or category of EDA is now widely used. Including the application of EDA in all fields such as machinery, electronics, communication, aerospace, chemical industry, minerals, biology, medicine, and military. At present, EDA technology has been widely used in major companies, enterprises and institutions, and scientific research and teaching departments. For example, in the process of aircraft manufacturing, EDA technology may involve EDA technology from design, performance testing and characteristics until flight simulation. The EDA technology referred to this article is mainly aimed at electronic circuit design, PCB design and IC design.
EDA design can be divided into system -level, circuit -level and physical implementation level.
2 EDA commonly used software
EDA tools are emerging endlessly. The EDA software that currently enters my country and has a wide range of influences are: Multisim7 (the latest version of EWB), PSPice, ORCAD, PROTEL, ViewLogic, Mentor, Graphics, Graphics, Graphics, Graphics, Graphics, Graphics , SynopSys, Lsiiogic, Cadence, Microsim, etc. These tools have strong functions, which can generally be used in several aspects. For example, many software can perform circuit design and simulation. The same advancement can also perform PCB automatic layout wiring, which can output a variety of mesh file files and third -party software interfaces. The following is divided into circuit design and simulation tools, PCB design software, IC design software, PLD design tools, and other EDA software to make a brief introduction.
2.1 Electronic circuit design and simulation tools
We may have used test boards or other things to make some electronic systems for practice. But sometimes, we will find that there are a lot of problems to make things, and we have not thought of it in advance, so that we waste a lot of our time and supplies. Moreover, the development cycle of the product and continuing the launch time of the product have enabled the product to lose its market competitive advantage. Is there a way to know the result without using the electric soldering iron test board? The conclusion is that this is the circuit design and simulation technology.
The technology of electronic circuit design and simulation tools, it must be mentioned in the United States, and it is necessary to mention why their aircraft design has high efficiency. In the past, the design of a medium -sized aircraft in my country, from the draft to the detailed design to the wind tunnel test to the last picture to the actual production, the entire cycle is about 10 years. The United States is 1 year. Why is there such a big gap? Because most of the United States uses virtual simulation technology when designing, enter the computer that has accumulated various wind tunnels accumulated for many years, and then write a virtual environment software through computer programming, and and also use computer programming to write a virtual environment software, and and also use computer programming software, and also uses computer programming software, and it is written by computer programming. It enables it to automatically apply relevant formulas and calls the relevant experience parameters of the computer after long -term accumulation. In this way, as long as the appearance data of the aircraft is placed in this virtual wind tunnel software for testing, it will be changed there if there is any problem with problems, until the best effect, the efficiency is naturally high. Finally, just test it in the actual environment. It can be set for a few times to find the shortcomings. From their Boeing 747 to F16, this method is used. Air dynamic data is provided by senior experts. The software developer is IBM. The aircraft design engineer only needs to use the simulation software to perform various simulation debugging work on the computer platform. Similarly, many of their other things use such similar methods, from large to small, from complex to simple, even including design furniture and composition, but the specific software content is different. In fact, when they invented the first generation of computers, this purpose was this purpose (it was originally designed for high -efficiency artillery and related artillery shells, as well as other designs with large calculations).
Tengcou design and simulation tools include spice/pspice; multisim7; matlab;; mmicad liveWire, Edison, Tina Pro Bright Spark, etc. Let's briefly introduce the first three software.
① SPICE (Program with Circuit Emphasis): It is a circuit analysis simulation software launched by the University of California. It is the most widely used circuit design software in the world in the 1980s. It was designated as a US national standard in 1998. In 1984, Microsim, the United States, launched a SPICE-based microcomputer version of PSPICE (Personal-Spice). Now more use is PSPICE6.2. It can be said that in similar products, it is the most powerful simulation and digital circuit hybrid EDA software, which is commonly used in China. The latest version of PSPICE9.1 is launched. It can perform various circuit simulation, incentive establishment, temperature and noise analysis, simulation control, waveform output, data output, and simulation results of simulation and numbers in the same window. No matter which device is simulated, you can get accurate simulation results, and you can establish a component and component library by yourself.
②Multisim (the latest version of EWB) Software: It is the circuit simulation software launched by Image LTD at the end of the 20th century. Its latest version is Multisim7. It is currently generally used. Compared with other EDA software, it has a more intuitive human -computer interaction interface, especially in the instrument and instrumental library in the instrument library and the actual instrument and instrument in the actual experiment of the operating experiment.没有两样，但它对模数电路的混合仿真功能却毫不逊色，几乎能够100%地仿真出真实电路的结果，并且它在仪器仪表库中还提供了万用表、信号发生器、瓦特表、双Track oscilloscope (for Multisim7 also has four traces of oscilloscope), Potter (equivalent to the actual actual frequency scanner), word signal generator, logical analyzer, logic converter, distortion analyzer, spectrum analyzer, network analyzer, network analyzer Instruments such as voltage meters and current meters. It also provides a variety of accurate modeling components in our daily common modeling, such as resistance, capacitance, inductance, triode, diode, relay, thyristor, digital tube, and so on. There are various computing amplifiers and other commonly used integrated circuits in the simulation integrated circuit. In terms of digital circuits, there are 74 series integrated circuits, 4000 series integrated circuits, and so on. They also support self -made components. MULTISIM7 also has an I-V analyzer (equivalent to the transistor characteristic icon in the real environment) and Agilent signal generator, Agilent multimeter, Agilent oscilloscope, and dynamic logic flat strokes. At the same time, it can also perform VHDL simulation and Verilog HDL simulation.
③ Matlab Products: One of their major features is that there are many toolboxes and simulation blocks for specific applications, which contain a complete function set to use special applications such as image signal processing, control system design, neural networks and other special applications Analysis and design. It has functions such as data collection, report generation, and MATLAB language programming to produce independent C/C code. MATLAB products have the following functions: data analysis; numerical and symbolic calculations, engineering and scientific drawing; control system design; digital image signal processing; financial engineering; modeling, simulation, prototype development; application development; graphic user interface design, etc. Matlab products are widely used in many fields such as signal and image processing, control system design, and communication system simulation. The open structure makes the MATLAB product family easily expand specific needs, so as to continuously deepen the understanding of the problem while improving its own competitiveness.
2.2 PCB design software
PCB (Printed-Circuit Board) design software has many types of design software, such as Protel, ORCAD, ViewLogic, PowerPCB, Cadence PSD, PCB, Zuken Cadstart, WinBoard/Windraft/IvEx-spice, IvEx-spice, IvEx-spice, IvEx-spice, IvEx-spice, IvEx-spice, IvEx-spice, PCB Studio, TANGO, PCBWIZARD (PCB production software package supporting with LiveWire), (with supporting PCB production software package) and so on.
The most used in our country is Protel. The following only introduces this software.
Lotel is the CAD tool launched by Protel (now Altium) in the late 1980s, which is the preferred software for PCB designers. It was used in China earlier and has the highest popularization rate. In many large -scale and technical colleges, the circuit majors also specially offer Protel courses. Almost the circuit companies are used by it. The early Protel was mainly used as an automatic wiring tool for printing boards. Its latest version is Protel DXP. Now it is generally used as a complete comprehensive circuit design system, which contains the electronic principle graphic drawing, analog circuit and digital circuit hybrid signal simulation , Multi -layer printing circuit board design (including the automatic layout of the printing circuit board), the programming logic device design, chart generation, circuit form generation, support of macro operation and other functions, and have Client/Server (customer/service architecture), at the same time It is also compatible with some other design software file formats, such as ORCAD, PSPICE, Excel, etc. Using the automatic wiring of multi -layer printed circuit boards can achieve a 100%cloth rate of high -density PCB. PRotel's software is powerful (at the same time with circuit simulation function and PLD development function), friendly interface, convenient use, but its most representative is circuit design and PCB design.
2.3 IC design software
IC design tools, of which Cadence, Mentor Graphics, and SynopSys are in accordance with market share. These three are well -known software suppliers in the field of ASIC design. There are fewer software for other companies. China China Corporation also provides ASIC design software (Panda 2000); in addition, the recent famous Avanti company was founded by several Chinese engineers in Cadence. Their design tools can be comprehensively competed with Cadence's tools, which is very suitable for the tools of Cadence Company, which is very suitable Shenyan micron IC design. Let's introduce some introduction to IC design software.
① Design input tools
This is the basic function that any EDA software must have. Like Cadence's Composer, ViewLogic's ViewDraw, hardware description language VHDL and Verilog HDL are the main design languages. Many design input tools support HDL (such as Multisim, etc.). In addition, Active-HDL and other design input methods, including principles and state machine input methods, and most of the tools for designing FPGA/CPLD can be used as the input method of IC design, such as Modelsim FPGA provided by companies such as Xilinx and Altera.
② Design simulation work
The biggest benefit of our use of the EDA tool is that it can verify whether the design is correct. Almost every company's EDA products have simulation tools. Verilog-XL, NC-Verilog is used for Verilog simulation, Leapfrog is used for VHDL simulation, and Analog Artist is used to simulate circuit simulation. ViewLogic's simulator is: Viewsim door-level circuit simulation, emulator, VCS-Verilog simulator. MENTOR GRAPHICS has VHDL and Verilog dual emulator produced by its sub -company Model Tech: Model Sim. Cadence and SynopSys use VSS (VHDL emulator). The current trend is that major EDA companies have gradually used HDL emulator as a tool for circuit verification.
③ Composite tools
The comprehensive tools can turn HDL into door -level meters. In this regard, the SynopSys tool has a large advantage. Its Design Compile is a comprehensive industrial standard. It also has another product called Behavior Compiler, which can provide more advanced synthesis.
It recently, another software called AMBIT has been released in the United States. It is said that it is more effective than SynopSys software. It can comprehensively comprehensively 500,000 circuits and faster speeds. At the beginning of this year, Ambit was acquired by Cadence, so Cadence abandoned its original comprehensive software Synergy. As the scale of FPGA design is getting larger and larger, EDA companies have developed comprehensive software for FPGA design. The more famous ones are: FPGA Express of SynopSys, Synplity of Cadence, Leonardo of Mentor. These three FPGA comprehensive software account Most of the market.
④ layout and wiring
In the layout wiring tools designed by IC, Cadence software is relatively strong. It has many products that can be used for standard units and door array. The most famous is the Cadence Spectra, which was originally used for PCB wiring. Later, Cadence used it as an IC wiring. The main tools are: Cell3, Silicon EnsembLE-standard unit wiring; Gate EnsembLE-door array wiring; design planner-layout tool. Other EDA software development companies also provide their own layout wiring tools.
⑤ Physical verification tools
The physical verification tools include layout design tools, layout verification tools, layout extraction tools, and so on. Cadence is also very strong in this regard, and there are many users of physical tools such as Dracula, Virtuso, Vampire.
⑥ Simulation circuit simulation
The simulation device mentioned above is mainly for digital circuits. For the simulation tools of analog circuits, SPICE is generally used, which is the only choice. Just choose different companies' Spice, like MiceOSIM's PSPICE, Meta Soft HSPICE, and so on. Hspice is now acquired by Avanti. Among the many Spice, HSPICE is designed as an IC, with many models and high simulation accuracy.
2.4 PLD design tools
PLD (logic device) is a digital integrated circuit that constructs logical functions by the user as required. There are currently two main types: CPLD (Complex PLD) and FPGA (Field Gate Array). Their basic design method is to generate corresponding target files with the help of EDA software, using schemes, status machines, Boolean expression, hardware description language and other methods, and finally use a programmer or download cable to achieve it by the target device. There are many manufacturers who produce PLDs, but the most representative PLD manufacturers are Altera, Xilinx and Lattice.
The development tools of PLD are generally provided by device manufacturers, but as the scale of the device continues to increase, the complexity of the software has also increased. Currently, it is used by special software companies and device manufacturers to launch powerful designs with powerful designs. software. Here are the main device manufacturers and development tools.
① Altera: Development rapidly after the 1990s. The main products are: MAX3000/7000, Felx6k/10K, APEX20K, ACEX1K, Stratix, etc. Its development tool-Max Plus II is a more successful PLD development platform. The latest Quartus II development software has been launched. Altera provides more forms of design input methods to bind third -party VHDL comprehensive tools such as: integrated software FPGA Express, Leonard Spectrum, simulation software Modelsim.
②ILINX: FPGA inventor. The product types are relatively complete, mainly: XC9500/4000, (XPLA3), Spartan, Vertex and other series. Its largest Vertex-II Pro device has reached 8 million. The development software is and ISE. Generally speaking, there are many people using Xilinx in Europe, more people in Japan and the Asia -Pacific region, and the United States is divided into autumn. More than 60%of the global PLD/FPGA products are provided by Altera and Xilinx. It can be said that Altera and Xilinx jointly determine the development direction of PLD technology.
③Lattice-Vantis: Lattice is the inventor of ISP (In-System) technology. ISP technology has greatly promoted the development of PLD products. Compared with Altera and Xilinx, its development tools are slightly inferior to Altera and Xilinx. Small and medium -sized PLDs are more distinctive, and the competitiveness of large -scale PLD is not strong enough (Lattice is not based on large -scale FPGA based on searching table technology). In 1999, programmable simulation devices were launched. Three major programmable logic devices. In December 2001, the FPGA department of Agere (formerly Lucent Microelectronics Department) was acquired. The main products are/5000/8000, Mach4/5.
④Actel: Leader of anti -fuse (disposable burnt) PLD. Due to anti -melting PLD anti -radiation, high and low temperature resistance, low power consumption, and fast speed, it has a great advantage in military products and aerospace levels. Altera and Xilinx generally do not get involved in military products and aerospace markets.
⑤: Professional PLD/FPGA company, mainly a one -time anti -fuse process, has a small sales in China.
⑥ Lucent: The main feature is that there are many special IP cores used in the field of communication, but PLD/FPGA is not the main business of Lucent, and few people are used in China.
⑦Aatmel: The small and medium -sized PLD is doing well. Atmel also made some films compatible with Altera and Xilinx, but there are still some gaps in quality in terms of quality. It is used less in high -reliability products and is mostly used on low -end products.
Clear logic: Production is compatible with some famous PLD/FPGA companies. This chip can solidify the user's design at one time, non -programming, and low cost during mass production.
iwsi: Production of PSD (single -chip microcompirable peripheral chip) products. This is a special PLD. For example, the latest PSD8XX and PSD9XX integrates PLD, EPROM, Flash, and supports ISP (online programming), which is highly integrated and mainly used to work with single -chip machines.
By the way: PLD (programmable logic device) is a new type of circuit that can completely replace the 74 series and GAL and PLA. As long as there is a digital circuit basis, the computer can be used to develop PLD. PLD's online programming capabilities and powerful development software enable engineers to complete the work that can only be completed in the past few weeks in a few days, or even a few minutes, and can integrate millions of complex designs in a chip. PLD technology has become an essential technology for electronic engineers in developed countries.
2.5 Other EDA software
① VHDL language: Ultra -high -speed integrated circuit hardware description language (VHDL) is a standard design language for IEEE. It is derived from the Very High Speed ​​Circuit (VHSIC) program proposed by the US Department of Defense. It is a major input tool for ASIC design and PLD design.
②Veriolg HDL: It is a hardware description language launched by Verilog. In terms of ASIC design, it is flat with VHDL language.
③ Other EDA software, such as tools for microwave circuit design and power carrier tools, PCB production and process control, will not be introduced here.
3 EDA application
EDA plays a huge role in teaching, scientific research, product design and manufacturing. In terms of teaching, almost all colleges and universities in science and engineering (especially electronic information) have set up EDA courses. It is mainly to let students understand the basic concepts and basic principles of EDA, master the theory and algorithm of comprehensive logical synthesis in HDL language, and use EDA tools to perform an experimental verification of electronic circuit curriculum and engage in simple system design. General learning circuit simulation tools (such as Multisim, PSPICE) and PLD development tools (such as Altera/Xilinx's device structure and development system) have found the foundation for future work.
The scientific research mainly uses circuit simulation tools (Multisim or PSPICE) for circuit design and simulation; use virtual instruments for product testing; the actual application of CPLD/FPGA devices into instruments and devices; engaged in PCB design and ASIC design.
It in terms of product design and manufacturing, including computer simulation, EDA tool application, system -level simulation and testing environment simulation in product development, EDA technology applications such as streamlined lines, product testing and other links. Such as PCB production, development and production of electronic equipment, welding of circuit boards, and ASIC production process, etc.
From the perspective of the application field, EDA technology has penetrated into various industries, as mentioned above, including all fields such as machinery, electronics, communications, aerospace, chemical industry, minerals, biology, medicine, military, etc. There are EDA applications. In addition, EDA software has become increasingly powerful. The original software is relatively single software, and now it has increased a lot of new uses. For example, AutoCAD software can be used for mechanical and architectural design, and also extended to architectural decoration and various effects, automobiles and aircraft models, film stunts and other fields.
4 EDA technology development trends
In from the current EDA technology, its development trend is that the government attaches great importance to, widely used, widely used, has diverse tools, and has powerful software functions.
The EDA market has gradually matured, but most of the design engineers are facing PCB board and small ASIC fields, and only a small part (about 11%) designers have developed complex film system devices. In order to form more powerful competition with design engineers in Taiwan and the United States, Chinese design teams need to introduce and learn some latest EDA technologies.
In in the field of information communication, we must give priority to the development of high -speed broadband information network, Shenzhen Asian micron integrated circuit, new component, computer and software technology, third -generation mobile communication technology, information management, information security technology, and actively develop digital A new generation of information products based on technology and network technology, develop emerging industries, and cultivate new economic growth points. It is necessary to vigorously promote the informatization of manufacturing, and actively carry out computer -aided design (CAD), computer -aided engineering (CAE), computer -aided process (CAPP), computer -aided manufacturing (CAM), product data management (PDM), manufacturing resource planning ( MRPII) and Enterprise Resource Management (ERP). Conditional enterprises can carry out "network manufacturing" to facilitate cooperation design, cooperative manufacturing, and participate in domestic and international competition. Carry out the "CNC" project and "digital" project. The technical development trend of automated instruments is further integrated with testing technology, control technology and computer technology, and communication technology to form a structure of measurement, control, communication and computer (M3C). In terms of ASIC and PLD design, it has developed to ultra -high -speed, high -density, low power consumption, and low voltage.
The market prospects that combine peripheral technology and EDA engineering are optimistic. For example, the related connection of large screens in combination, multi -screen technology has also developed.
The China has accelerated the development of the semiconductor industry since 1995, and has established several design centers to promote a series of design activities to respond to competition in other EDA markets in the Asia -Pacific region.
It in the development of EDA software, it is currently concentrated in the United States. But countries are also working hard to develop corresponding tools. Japan and South Korea have ASIC design tools, but they are not open to the public. China Huada Integrated Circuit Design Center also provides IC design software, but its performance is not very strong. I believe that in the near future, more and better design tools will bloom and results in various places. According to the latest statistics, China and India are becoming the two fastest markets in the field of electronic design automation, and the growth rates of summer and summer have reached 50%and 30%, respectively.
EDA technology is developing rapidly, and it can be described with a new moon. EDA technology is widely used, and now involves all walks of life. EDA levels are continuously improved, and design tools tend to be perfect. The EDA market is becoming increasingly mature, but my country's R