Device for updating FPGA (Field Programmable Gate Array) from a long distance by CPU (Central Processing Unit) and method therefor

Abstract

The invention discloses a device for updating an FPGA (Field Programmable Gate Array) from a long distance by a CPU (Central Processing Unit) and a method for updating the FPGA from a long distance by the CPU. The device comprises a controller module, an FPGA module, a configuration module and a buffer module, wherein the controller module is connected with an upper computer in a wired / wireless way, a second GPIO (General Purpose Input / Output) interface of the controller module is connected with an enable pin of the buffer controller, an SPI (Serial Peripheral Interface) of the controller module is connected with a data input end of the buffer module, a first GPIO interface of the controller module is connected with a configuration signal of the FPGA module, a data output end of the buffer module is connected with SPIs of the FPGA module and the configuration module respectively, a FPGA configuration file is updated from a long distance based on MPC5200B and a real-time operation system VxWorks. According to the device and the method, the cost is saved, the operability of the system is improved, the design difficulty is reduced, the on-line updating of the FPGA is easily realized, and the configuration efficiency and the configuration flexibility of the FPGA are improved.

Description

technical field [0001] The invention relates to an FPGA configuration device and a method thereof, in particular to a device and a method for performing FPGA remote update through a CPU. Background technique [0002] With the rapid development of railway technology and massive investment in railway construction, major railway electrical equipment suppliers at home and abroad have adopted various advanced product development methods in order to enhance product functions, improve product quality, and shorten product research and development cycles. Technology, such as embedded real-time operating system, high-speed processor technology, especially product modularization technology. In order to quickly respond to market demand, improve its product capabilities, and meet the needs of electric locomotives, urban rail trains, and internal combustion vehicles, China has independently developed a distributed network control system DTECS. The DTECS system adopts the modular distribu...

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Problems solved by technology

[0006] The method of downloading the FPGA configuration through a dedicated configuration chip and the method of downloading to the FPGA through the JTAG port for configuration are both solutions. In field applications, the module must be opened, and the disadvantage of downloading through the JTAG interface is that the PC must have The update of the FPGA configuration file can only be completed with a dedicated download software and a dedicated download cable

[0007] In order to effectively solve the problem of difficulty in downloading FPGA programs for each module in the DTECS system, avoid opening modules, avoid installing special download software, and avoid using FPGA-specific download cables, research on a device and method for remotely updating FPGA configuration through the CPU has become Technical problems to be solved urgently in the prior art

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