It is a semi-finished circuit template suitable for editing layouts in a basic hardware language.
Logic circuits currently described in a hardware description language (Verilog or VHDL) can be quickly burned onto an FPGA for testing using logic synthesis and wiring tool software.
It can be done very quickly, and its internal logic can be iteratively modified by the designer to correct errors in the program.
As a result, field-programmable gate arrays are almost a necessary component in electronic systems in industries where technology is updated relatively quickly because it is important to capture the market quickly before offering a large number of products. At this point, the advantages of FPGA convenience and flexibility are important.
Extended information:
FPGAs, with their programmable delayed digital units, have a relatively wide range of applications in communication systems and all kinds of electronic equipment has a relatively wide range of applications, such as synchronous communication systems, time numerical system, etc., the main design methods include numerical delay line method, memory method, counter method, etc., of which the memory method is mainly realized by using the FPGA's RAM or FIFO.
Using FPGA to read and write data related to the SD card can be based on specific algorithmic needs of low FPGA chip programming, and more actual changes in the situation to realize the read and write operation of the continuous update. Under this mode, only the original chip can be used to realize the effective control of the SD card, significantly reducing the cost of the system.
Often, the communications industry, taking into account the cost and operation of various factors, the number of terminal equipment in a larger number of locations, the FPGA dosage is relatively large, the base station is most suitable for the use of FPGAs, base stations, almost every board need to use FPGA chips, and the model of the higher end, you can deal with the complexity of the physical protocols to achieve the logic of the control.
Baidu Encyclopedia-FPGA