Abstract: The article discusses the structural properties of ordinarily used FPGA and introduces the special methods and design flow for FPGA design.The author also discusses how to integrate and implement a communication system consisting of several chips into a single FPGA chip,and analyzes the function of the system on the FPGA chip.The result shows that  the FPGA can be used for improving the function of complex circuits and simplifying the designing of complex circuits.

Key words: SOPC (system on a programmable chip), IP core, Wishbone system-on-chip (SOC) architecture, USB, UART