FPGA development board and communication method thereof

Abstract

The invention relates to an FPGA development board. The FPGA development board comprises a Micro USB interface, a power module, an FPGA core chip and a peripheral module. The FPGA development board also comprises a downloading debugging module connected with the FPGA core chip, wherein the downloading debugging module comprises a communication module, a master controller and a peripheral circuit; the master controller is connected with the communication module and the peripheral circuit; and the communication module is provided with a USB2.0 interface. Through the FPGA development board, the learning difficulty of a user is lowered, the learning efficiency of the user is improved, the size of the FPGA development board is reduced, and user experience and usability are improved. The invention furthermore relates to a communication method of the FPGA development board.

Description

technical field [0001] The present invention relates to FPGA, in particular to FPGA development board and communication method thereof. Background technique [0002] Programmable logic technology: FPGA (Field-Programmable Gate Array, Field Programmable Logic Gate Array), is a product of further development in the field of digital logic based on PAL, GAL, CPLD and other technologies, and ASIC (Application-specific integrated circuit , application-specific integrated circuits) complement each other, overcome the problem that ASIC is not flexible enough as a custom circuit, and also solve the shortage of logic resources of GAL, CPLD and other devices. At the same time, more importantly, FPGA is an important tool in the chip verification process. Because of this, since FPGA entered the country, it has been highly valued, and the country's investment in this industry has also increased year by year. In order to open up the market and expand the market share of FPGA, FPGA manufac...

AI Technical Summary

Problems solved by technology

[0010] Due to the large size of the current download debugger hardware, it is used separately from the development board. Every time you use it, you need to use a USB cable and a flat cable to connect the computer and the development board, which is inconvenient to use.

[0011] The download debugger uses the USB interface to communicate. The USB module must be used with the FPGA development software of major FPGA manufacturers. The driver program of the manufacturer must be installed. Due to the different compatibility of the operating system, the driver is often incompatible, resulting in download debugging. unavailable

[0012] During the download process, the FPGA software will verify the ID information of the FPGA chip, and then decode, download, and verify the file. The whole process is lengthy and complicated, resulting in slow download speed and poor user experience.

The download debugger generally uses an expensive dedicated USB conversion chip, and also requires a CPLD chip, resulting in a high hardware cost for the entire downloader

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