What can fpga chips be used for?

FPGA chip appears as a semi-customized circuit in the field of application-specific integrated circuits. It can not only solve the shortcomings of customized circuits, but also overcome the shortcomings of the limited number of original programmable device gate circuits; FPGA can Used in video segmentation systems, data delay and storage design, communications industry and other fields.

#The operating environment of this tutorial: Windows 10 system, Dell G3 computer.

What can fpga chips be used for?

FPGA (Field Programmable Gate Array) is a product of PAL (Programmable Array Logic), GAL (General Array Logic), etc. The product of further development based on programmable devices. It appears as a semi-custom circuit in the field of application-specific integrated circuits (ASIC), which not only solves the shortcomings of custom circuits, but also overcomes the shortcomings of the limited number of gates in the original programmable devices.

Industry Application

Video Segmentation System

In recent years, large-scale master control systems have become increasingly popular The application of video segmentation technology is also gradually improving. This technology uses a multi-screen splicing display method to display a video signal. It is widely used in some scenarios that require the use of large-screen displays.

With the advancement of technology, video segmentation technology has gradually matured, meeting people's basic needs for clear video images. The FPGA chip hardware structure is relatively special. You can use pre-edited logical structure files to adjust the internal structure and use Constraint files are used to adjust the connections and positions of different logical units, and properly handle data line paths. Its own flexibility and adaptability facilitates user development and application. When processing video signals, FPGA chips can make full use of their own speed and structural advantages to implement ping-pong technology and pipeline technology. In the process of external connection, the chip uses parallel data connection to widen the bit width of image information and use internal logic functions to increase the speed of image processing. Control of image processing and other devices is achieved through cache structures and clock management. In the overall design structure, the FPGA chip is at the core. It performs interpolation processing, extraction and storage of complex data, and also plays an overall control role to ensure the stable operation of the system. In addition, video information processing is different from other data processing and requires the chip to have special logic units and RAM or FIFO units to ensure sufficient data transmission speed.

Data delay and storage design

FPGA has a programmable delay digital unit, which is widely used in communication systems and various types of electronic equipment, such as synchronous communication systems, time digitization Systems, etc., the main design methods include CNC delay line method, memory method, counter method, etc. Among them, the memory method is mainly implemented by using the RAM or FIFO of FPGA.

Using FPGA to read and write SD card related data can be programmed according to the needs of specific algorithms, and the FPGA chip can be programmed according to changes in actual conditions to achieve continuous updates of read and write operations. In this mode, only the original chip can be used to effectively control the SD card, which significantly reduces the cost of the system.

Communication Industry

Normally, the communication industry takes into account various factors such as cost and operation. In locations with a large number of terminal devices, FPGA usage is relatively large, and base stations are most suitable for use. FPGA, almost every board in the base station requires the use of FPGA chips, and the models are relatively high-end and can handle complex physical protocols and implement logical control. At the same time, because the logical link layer and physical layer protocol part of the base station needs to be updated regularly, FPGA technology is also more suitable. At present, FPGA is mainly used in the early and mid-term construction of the communication industry, and is gradually replaced by ASIC in the later stage.

Other applications

FPGA is also widely used in security, industry and other fields. For example, protocols such as video encoding and decoding in the security field can use FPGA in the process of front-end data collection and logic control. deal with. The industrial field mainly uses smaller FPGAs to meet the need for flexibility. In addition, because FPGA has relatively high reliability, it is also widely used in the military and aerospace fields. In the future, as technology continues to improve, related processes will be upgraded and transformed. In many new industries such as big data, FPGA will have wider application prospects. With the construction of 5G networks, FPGAs will be widely used in the initial stage, and new fields such as artificial intelligence will also use FPGAs more.

In February 2021, the FPGA (Field Programmable Gate Array) that is purchased first and then designed is called a "universal chip". Jingwei Qili Company, one of the earliest companies in China that independently develops, produces and sells general-purpose FPGA chips in batches, has finalized that it will invest 300 million yuan to build a new generation of domestic FPGA chip R&D and industrialization projects in Yizhuang.

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