Today's digital electronic technology has developed rapidly, effectively promoting and promoting the improvement of social productivity and social information. Digital electronic technology has gradually penetrated into all areas of human life. Digital electronics technology can be seen in consumer electronics, industrial automation equipment and aerospace technology. At the same time as the development of technology, the design of electronic products has also undergone tremendous changes. The adoption of EDA (Electronic Design Automation) technology has become the main method of digital electronic design.
EDA Technology and DevelopmentDigital electronics engineers are now facing unprecedented challenges. On the one hand, electronics companies require engineers to use less resources to design new products in less time and perform better than competing products. On the other hand, technology changes very quickly. Different customers have completely different needs and require more personalized products. Therefore, EDA technology has emerged as a good technology choice to solve all the above problems.
What is EDA TechnologyEDA technology is a rapidly developing new technology. It uses large-scale programmable logic devices as the design carrier, hardware description language as the main expression of system logic description, and computer, large-scale programmable logic device development software and experimental development system as design tools. It can use software to design electronic systems, automatically complete the hardware system's logic compilation, logic simplifying, logic division, logic synthesis and optimization, logic layout, logic simulation, and finally in a specific target chip to achieve adaptive compilation, logic Mapping, programming downloads, etc. form an integrated electronic system or a dedicated integrated chip. The design of an electronic system using EDA technology has the following features.
Use hardware to design hardware.
The conversion of the system-to-hardware system, which is designed in a software way, is done automatically by the relevant development software.
Various simulations can be performed with the software during the design process.
The system can be field programmed and upgraded online.
The entire system can be integrated on one chip, with small size, low power consumption, and high reliability. Therefore, EDA technology is the development trend of modern electronic design.
EDA technology is the core technology of digital system design and is one of the basic skills that electronic professional technicians must master. Current large-scale programmable logic devices are CPLDs (Complex Programmable Logic Devices) and FPGAs (Programmable Logic Arrays).
EDA is an essential design tool software for the IC electronics industry and is the most upstream sub-industry of the IC industry chain. Cadence, Synopsys, and Mentor Graphics are the top three global giants of EDA tools software vendors. In November of last year, Mentor Graphics was acquired by Siemens for a total of $4.5 billion in cash.
EDA tool is the abbreviation of Electronic Design AutomaTIon. It is developed from the concepts of CAD, CAM, CAT and CAE. Using EDA tools, the engineer will complete the process of circuit design, performance analysis, and design of the IC layout by the computer.
Because of the relatively low complexity of integrated circuits in the sixties and seventies of the last century, engineers can rely on manual work to complete the design and wiring of integrated circuits. But as integrated circuits become more and more complex, and relying entirely on manual work becomes more and more impractical, engineers have only begun to try to automate the design process, in 1980 Carver. Mead and Lynn. The paper "Introduction to VLSI System" published by Conway put forward a new idea of ​​chip design through programming languages. With the increasing maturity of integrated circuit logic simulation and function verification tools, engineers can design more integrated levels. High and more complex chips.
In 1986, the hardware description language Verilog was introduced. The Verilog language is now the most popular high-level abstract design language. In 1987, VHDL was funded by the U.S. Department of Defense. The advent of these hardware description languages ​​has boosted the level of integrated circuit design. Subsequently, various simulation systems based on these language specifications were quickly introduced, allowing designers to directly simulate the design of the chip. With the advancement of technology, design projects can be simulated before the actual hardware circuit is constructed, and the requirements for chip design and the error rate of the chip wiring layout are also decreasing.
Even though the languages ​​and tools used are still evolving, designing and verifying the expected behavior of the circuit through programming languages ​​and using tool software to synthesize a low abstraction level physical design is still the basis of digital integrated circuit design. . An engineer working on the design of the CPU said, “Before the EDA tool was not available, the circuit needed to be hand-crafted. It was simply impossible to design a large-scale integrated circuit with hundreds of millions of transistors. It can be said that with the EDA tool, With the possibility of VLSI design."
EDA tool softwareEDA tool software can be roughly divided into three categories: chip design auxiliary software, programmable chip auxiliary design software, and system design auxiliary software. The EDA software that currently enters China and has extensive influence is the system design software auxiliary and programmable chip assisted design software: Protel, PSPICE, mulTISIM10 (the latest version of the original EWB), OrCAD, PCAD, LSIIogic, MicroSim, ISE, modelsim, etc. Wait. These tools have strong functions and can generally be used in several aspects. For example, many softwares can perform circuit design and simulation. At the same time, they can also conduct automatic PCB layout and routing, and can output a variety of netlist files and third-party software interfaces.
Pcb Pluggable Terminal Block Connector ,Pluggable Terminal Block,Contact Pluggable Terminal Blocks ,Pluggable Screw Terminal
Cixi Xinke Electronic Technology Co., Ltd. , https://www.cxxinke.com