The traditional electronic system design method is compared with the modern electronic system design method, which leads to the field programmable gate array (FPGA) circuit based on EDA technology. It is proposed that the field programmable gate array (FPGA) is a large-scale development that has been rapidly developed in recent years. Programming Application Specific Integrated Circuits (ASICs) are gaining increasing attention in digital system design and control circuits. The basic structure, performance characteristics, application fields and precautions in use of this circuit are introduced. The FPGA based on EDA technology is prospected. It is pointed out that EDA technology will be the main direction of future development of electronic product design technology. The booming of integrated circuit technology and computer technology has enabled the electronic product design to have a better application market, and the implementation method has more choices. The traditional electronic product design is a circuit board-based design method that requires a large number of fixed-function devices and then simulates the functions of the electronic products through the cooperative design of these devices. Its work focuses on the selection of devices and the board. Designed. With the improvement of computer cost performance and the emergence of programmable logic devices, the traditional digital electronic system design method has been revolutionized. The modern electronic system design method is that designers design their own chips to realize the functions of electronic systems. Firmware selection and board design work are performed in the chip design. Since the early 1990s, electronic product design systems have become increasingly digital, complex, and large-scale integration, and design software for various electronic systems has emerged. Among these specialized softwares, EDA (Electronic Design AutomaTIon) has a certain representativeness. EDA technology is a chip-based modern electronic system design method. Its advantages are mainly in the system design automation that can be input in HDL language, design and simulation of PLD (programmable device); at the end of the 1990s, analog programmable devices appeared in programmable devices, due to technology, The impact of operability and cost-effectiveness, EDA technology will develop into the design and simulation of analog programmable devices in the future, and occupy a certain share of the market. EDA technology mainly includes four aspects: large-scale programmable logic device, hardware description language, development software tools and experimental development system. Among them, large-scale programmable logic device is the carrier hardware for electronic system design using EDA technology. Description language is the main expression means of electronic system design using EDA technology. The development software tool is the intelligentization of electronic system design by using EDA technology. The automated design tool and experimental development system provide peripheral resources for chip download circuits and EDA experiments and development. FPGA structure overview Field Programmable Gate Array FPGAs are the most integrated and complex programmable ASICs. It is a new category of ASICs built on innovative invention concepts and advanced EDA technologies. The logic design of logic units and signal processing units with complex algorithms such as operators, multipliers, digital filters, and two-dimensional convolvers can be implemented in FPGAs. Taking Xilinx FPGA device as an example, its structure can be divided into three parts: programmable logic block CLB (Configurable Logic Blocks), programmable I/O module IOB (Input/Output Block) and programmable internal connection PI (Programmable) Interconnect). The CLBs are arranged in an array in the device, with a surrounding inner wiring and IOBs distributed around the surrounding pins. Xilinx's CLB is very powerful, not only can implement logic functions, but also can be configured into complex forms such as RAM. Field Programmable Gate Array FPGAs are versatile devices that contain large-scale digital circuits. The interconnection between these digital circuits is defined by the user using more advanced software. FPGAs can be reprogrammed indefinitely. The change from one circuit to another is achieved by simply unloading the interconnect file, greatly driving the design of complex digital circuits and reducing the time for fault checking. Traditional digital logic designs use TTL levels and small-scale digital integrated circuits to complete logic diagrams. The use of these standard logic devices has proven to be the cheapest means, but requires some wiring and complex circuit board (welding debugging) and other work, if the error occurs, the change is particularly troublesome. Therefore, a large part of the work of traditional electronic design solutions is mainly focused on the physical connection, debugging and troubleshooting of device devices. Because FPGA EDA technology uses a more advanced computer language, the generation of the circuit is basically done by a computer, which will enable users to complete more complex digital circuit designs faster, because there is no physical connection between devices. Therefore, debugging and troubleshooting are more rapid and effective.
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