Multi-FPGA (Field Programmable Gate Array) system online updating method and system and computer equipment

Abstract

The invention discloses a multi-FPGA system online updating method and system and computer equipment, the multi-FPGA system comprises at least two FPGAs, channel selection modules and storage modules, the second FPGA is connected with the corresponding storage module through the corresponding channel selection module, the first FPGA is connected with the corresponding storage module through the corresponding channel selection module of the second FPGA, and the first FPGA is connected with the corresponding storage module through the corresponding channel selection module of the second FPGA. The method comprises the steps that an upper computer specifies a first FPGA and a second FPGA; the first FPGA obtains the update data from the upper computer, switches the channel selection module corresponding to the second FPGA to the first channel, and then sends the update data to the corresponding storage module through the first channel; the first FPGA sends an instruction to the second FPGA, the channel selection module corresponding to the second FPGA is switched to the second channel, and the second FPGA obtains the update data from the storage module through the second channel and updates the update data. According to the invention, more efficient and flexible online updating is realized.

Description

technical field [0001] The present invention relates to a firmware update method, in particular to an online update method, system and computer equipment of a multi-FPGA system. Background technique [0002] With the rapid development of technology and market demand, more and more devices tend to be multi-functional and complex, which means that many devices or systems will contain multiple FPGAs, coupled with the limitations of the application environment, how to quickly The online upgrade of the program to the equipment or system has become a key issue. The current online update methods mainly include: [0003] 1. Use the download cable to connect the JTAG port to update and download the program. But in general, the JTAG download port is generally placed on the board. If the device needs to be updated and downloaded online, it is necessary to disassemble the chassis or shell to download the program using the JTAG download port. Therefore, there are too many restrictions...

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Problems solved by technology

[0006] The technical problem to be solved in the present invention: aim at the above-mentioned problem of prior art, provide a kind of multi-FPGA system online update method, system and computer equipment, overcome the shortcomings such as slow update speed, long loading time of existing scheme, reduce design difficulty, improve System operability for more efficient and flexible online updates

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