EDA Technology Research Articles

A QCA placement and routing algorithm based on the SA algorithm

ABSTRACT In the Beyond Moore era, QCA (Quantum-dot Cellular Automata) has been widely studied because of its low power consumption and high device concentration. As the core of chip design, EDA technology has become an indispensable step in QCA research. It refers to the use of computer-aided design software to complete large-scale circuit function design, logic synthesis, placement and routing, design rule check and other processes. In the present study, there are still many defects in QCA placement and routing. The main problems it faces are low success rate, too large area and too many cross lines. To address these problems, our team had proposed a hybrid strategy based on the genetic algorithm and the improved A-star algorithm. But the running time of the previously proposed algorithm is not satisfying, besides it lacks self-adaption feature which is important as the problem size varies among different circuits. This paper replaces the genetic algorithm with a simulated annealing algorithm, and introduces a self-adaption strategy to better accommodate different circuit sizes. Experimental results show that the new algorithm combination possesses a higher success rate, lower running time and more intelligent adaption ability.

Design and Improvement of Digital Communication System Based on EDA Platform

The design of digital circuit systems based on EDA tools can greatly improve design efficiency. In this paper, a multi-mode communication signal modulation and demodulation system are designed with FPGA as the hardware carrier. Furthermore, this paper puts forward a teaching and experimental scheme of communication circuits, that is, using the EDA platform to realize different modulation and demodulation modes. The advantage of this scheme is that it can not only be realized in hardware, but also can analyze the performance accurately and that the waveform is intuitive. This scheme can make students feel the advantages of EDA Technology in complex logic circuit design. Students can understand new communication modes deeply by using EDA technology.

Application of EDA Technology in Electronic Engineering Design

The rapid development of EDA technology makes it more and more widely used in modern electronic system design, 
 including IC design, circuit board wiring, function verification and simulation, and testing.Electronic engineering design is the core 
 course of cultivating electrical information majors, which helps cultivate students’ engineering ability, practical ability, innovative 
 consciousness, systematic thinking, etc. Through the application of EDA Technology in all links of course implementation, 
 including design scheme selection, unit circuit design and system debugging, the correctness and reliability of circuit design are 
 greatly improved, and the application ability of students’ electronic design software is greatly exercised.

Research on Curriculum Construction and Teaching Reform of Digital Electronic Technology

Digital electronic technology is a basic course for the majors of electronic information engineering, electrical engineering and automation, communication engineering, computer science and technology in the school of information and engineering of our university. It is also an important part of the three electricity courses (circuit analysis, analog electronic technology, digital electronic technology). The project is mainly based on project-based teaching, which is divided into basic projects, verification projects and design innovation projects. Specific requirements are put forward for project principle design, software simulation, physical welding, physical measurement and commissioning, etc, integrating EDA technology into theory teaching, flipped classroom (student lecture, student evaluation, student lecturer evaluation), process assessment methods, so that students have the basic knowledge and operation skills of digital electronic technology.

Guest Editors’ Introduction: The Resurgence of Open-Source EDA Technology

In the 1980s, the academic community produced several very high-quality electronic design automation (EDA) tools that spawned the EDA industry. Tools such as Spice <xref ref-type="bibr" rid="ref1" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">[1]</xref> , Espresso <xref ref-type="bibr" rid="ref2" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">[2]</xref> , and SIS <xref ref-type="bibr" rid="ref3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">[3]</xref> became the foundation of EDA companies. Open-source tools enable rapid innovation and create an ecosystem for scientific development. In recent years, the cost and difficulty involved in the design of integrated circuits (ICs) in advanced nodes have stifled hardware design innovation and have raised unprecedented barriers to bring new design ideas to the marketplace. Unlike the thriving software community, which enjoys a large number of open-source operating systems, compilers, libraries, and applications, the hardware community lacks such a modern ecosystem. With the advent of open silicon IP ecosystems, such as RISCV, Chips Alliance, and Free Silicon Foundation, the time has come to reinvigorate the open-source movement in EDA tools. Recent programs from governmental agencies aim to jump-start the development of open-source EDA tools to reduce the cost and turnaround time of hardware design.

Source Load Forecasting of Customer-side Multi-energy System Based Feature Engineering

Existing research mainly focuses on the single forecasting target and algorithm optimization, rarely mentions how to extract features for forecasting. For the source and load data of the customer-side multi-energy system, the influencing factors are complex and coupled. So, the quality of features gradually becomes the bottleneck that limits its forecasting accuracy. In this regard, based on EDA technology, this paper proposes a source and load forecasting method of customer-side multi-energy system based on feature engineering. First, combined with domain knowledge, perform a more systematic and complete feature analysis for the original observation data. Through this process, we can extract time features, statistical features and combined features. Subsequently, according to the characteristics of the data, the corresponding algorithm is selected to build a forecasting model. Finally, conduct two experiments based on source-side data and load-side data respectively, which proved that this approach can significantly improve the forecasting accuracy.

Application of EDA Technology in Marine Communication Electronic Circuit

Jiang, Y. and Liu, T., 2020. Application of EDA technology in marine communication electronic circuit. In: Li, L. and Huang, X. (eds.), Sustainable Development in Coastal Regions: A Perspective of Environment, Economy, and Technology. Journal of Coastal Research, Special Issue No. 112, pp. 437-439. Coconut Creek (Florida), ISSN 0749-0208.EDA technology, with its high efficiency and high operability in circuit design, has high applicability in the application of marine communication electronic circuit. With the rapid growth of international cross sea communication demand, the application of electronic technology of marine communication based on EDA technology has brought more broad development space. Based on this, this paper first studies the application characteristics of EDA technology in marine communication electronic circuit, then analyzes the design process of marine communication electronic circuit based on EDA technology, and finally gives the specific application of EDA technology in marine communication electronic circuit.

THE RESEARCH OF PULSE SIGNAL PARAMETER MEASURING INSTRUMENT BASED ON FPGA AND STM32

Using the principle of measurement accuracy, combined with EDA technology and microcomputer control technology,we designed the pulse signal measuring instrument. The accuracy of frequency the measurement method not only has highmeasurement accuracy, butalso in the frequency measurement accuracy of the frequency bandwidth can be keptconstant.As a result of the front-end circuit and good isolation circuit and other technical measures, and In a wide rangeof frequencies in the range of frequency and amplitude, period, duty cycle and other parameters were measuredaccurately, and can be preset by adjusting the gate time measurement accuracy. After experimental verification and datameasurement, results show that our scheme is feasible and can achieve highermeasurement accuracy in a widebandwidth.

Design and Realization of TTE Network based on EDA

The real-time network has always been a hot issue in different kinds of fields. This paper introduced a late-model real-time network, Time-Triggered Ethernet(TTE) with incredible performance of determinacy and reliability. A simulation model of TTE system based on OMNet++ is presented in the paper for validation. Moreover, the paper builds a TTEthernet system based on EDA technology with simplified nodes in which the main synchronization algorithm and some other functions are realized.

部品内蔵基板の生産性向上に繋がるEDA技術

部品内蔵基板の生産性向上に繋がるEDA技術

部品内蔵基板の生産性向上に繋がる解析関連技術

部品内蔵基板の生産性向上に繋がる解析関連技術

Design of Digital Cymometer Based on EDA Technology

To overcome the shortcoming that the traditional cymometer has a relatively large delay, small measuring range, low precision, poor reliability and complicated circuit; A design of digital cymometer based on EDA technology is proposed. The design is programmed with the hardware description language of VHDL. And it takes full advantages of Max+PlusII software to compile and simulate. All the functions are downloaded into and debugged on the chip of EP1K100QC in ACEX1K series from Altera Company. The experimental results show that this system has a very high reliability and small measuring error. The function of this system completely satisfies the demand of the design.

The Simulation Gene Regulatory Boolean Network Based on the Sequential Circuit

Along with the completion of HGP (human genome project), huge amounts of genetic data constantly emerge. Research suggests that genes are not in independent existence and the expression of a gene will promote or inhibit the expression of another gene; if the expression of a gene makes the biochemical environment of cells changed, the expression of a series of genes will be affected. In order to get a better understanding of the relationship between genes, all sorts of gene regulatory network models have been established by scientists. In this paper, a variety of gene regulatory networks are first introduced according to the process of this subject research, and then the most basic network (i.e. Boolean network) is emphatically analyzed, and then a new method (i.e. Boolean network based on the theory of circuit) to describe Boolean network is drawn forth. After the shortcomings of the Boolean network proposed in the past are analyzed, a simulation circuit Boolean model is established using EDA technology in order to improve the Boolean network.

Study on the Course Reform of “EDA Technology”

Whereas, colleges of undergraduates have some certain insufficiency in EDA teaching for lack of material theoretical guidance, educating conditions and qualified teachers etc. Guided by the theory of constructivism this thesis developed a study on the criteria and content of EDA technology courses.

A Power Effective Algorithm for State Encoding

Reducing the area and power dissipation of FSM circuit is of significant importance for EDA technology. Many methods are adopted to achieve an effective and fast transformation of FSMs to binary codes, including Genetic algorithm (GA) and others. In this paper, we propose a GA based state assignment of a FSM circuit to gain the minimization of power consumption and area. We modify the traditional mutation to be an ordered operation, which is also a substitution of the crossover that guarantees every new individual owns better fitness than the old one. We test the proposed algorithm with benchmarks, as well as do the comparison with the published; our method saves both power and area dissipation in reasonable computation time. DOI : http://dx.doi.org/10.11591/telkomnika.v12i6.5481 Full Text: PDF

Design of Elevator Controller Based on FPGA

With the technology market and talent market demand for EDA continues to improve, the market demand for products and technology requirements of the market also will be reflected to the field of teaching and scientific research in the field. EDA technology improves, promoted the development of elevator controller. Elevator industry with the development of science and technology, constantly appeared in various places, people's life so, design of elevator controller is a practical example, also has the very big help to master the applications of EDA technology. The elevator controller is composed of two parts of hardware and software. This design using the EDA technology to carry out the operation, design is a 3 storey elevator controller.

Hierarchy Design of Digital System Based on EDA Technology

The hierarchy design method of digital system based on EDA is proposed through the design of digital frequency meter system in this paper. Firstly, it divides the frequency meter into different function module and Writes VHDL code to describe each module circuit. Then, it creates the schematic diagram of top circuit. Design input, compiled, logic synthesize and function simulation are accomplished use MAX+PLUS II. In the end, digital frequency meter is implemented in CPLD. The results show that the design method can greatly simplify the complexity of hardware circuit structure. Its characteristic is high reliability and strong flexibility.

The Application of EDA Technology in the Teaching of Communication Circuits

With the design and simulation of single and double‐tuned amplifiers as an example, this paper discusses the application of NI Multisim, the advanced software, in the communication circuit teaching. Using the NI Multisim simulation platform, the parameters of various components in the circuit can be set freely. The relationship between the specific circuit parameters and the circuit performance can be investigated directly and in depth by referring to the simulation results. The proper combination of NI Multisim simulation software and the NI ELVIS platform can provide an effective training platform for improving the students' comprehensive abilities in circuit design.

車載機器の開発を支えるEDA技術

車載機器の開発を支えるEDA技術

Research and Design of Superscalar Pipeline Processor Based on CPLD Technology

Superscalar pipelining is to improve instruction-level parallelism and advanced technology, and is widely used in the computer's central processor and graphic accelerator. In this paper, we made use of advantage of CPLD devicesinherent flexibility, usability, predictability and so on, to achieve superscalar pipelining, designed and constructed a processor model superscalar pipeline machine based on RISC instruction set. Using EDA technology with top-down design methods, and gave the processor model hardware verification and performance test results, and had explored the use of EDA technology processor design ideas and methods.