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基于FPGA的在線(xiàn)重構設計方法
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北京航天長(cháng)征飛行器研究所

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V475.5

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Design method of online reconstruction based on FPGA
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    摘要:

    為了解決SRAM型FPGA和配置存儲器中存在的單粒子反轉現象導致的FPGA工作異常和配置失敗問(wèn)題,同時(shí)滿(mǎn)足FPGA類(lèi)產(chǎn)品在總裝后可以通過(guò)和地面通信接口實(shí)現遠程更新的需求,提出了三種基于Xilinx FPGA的軟件重構方法。對于7 系列以下FPGA,采用ASIC在線(xiàn)重構技術(shù),通過(guò)JTAG和SPI接口控制配置存儲器讀寫(xiě)實(shí)現在線(xiàn)重構,該方法簡(jiǎn)單,適用于多板卡應用場(chǎng)景;對于7系列FPGA,采用MultiBoot多鏡像技術(shù)實(shí)現多鏡像啟動(dòng),通過(guò)直接更新M鏡像的方式實(shí)現在線(xiàn)重構功能,該方法不需要外部控制芯片,電路簡(jiǎn)單,設計方便,適用于單芯片控制場(chǎng)合;針對ZYNQ類(lèi)芯片,利用其內部的BootROM和FSBL功能,在配置存儲器中通過(guò)多鏡像方式實(shí)現在線(xiàn)重構設計,適用于高性能應用場(chǎng)景。三種方法保證了FPGA可靠啟動(dòng),同時(shí)具備在線(xiàn)更新功能,可以保證在更新失敗的情況下,依然可以運行舊版本或可以重新對其進(jìn)行配置,增強了系統的安全性和可靠性。

    Abstract:

    In order to solve the problem of FPGA abnormal work and configuration failure caused by single particle inversion in SRAM FPGA and configuration memory, and to meet the requirement that FPGA products can be updated remotely through the communication interface with the ground after assembly, three software reconstruction methods based on Xilinx FPGA were proposed.For FPGA of 7 series, ASIC online reconstruction technology is adopted, and JTAG and SPI interface control configuration memory read and write to achieve online reconstruction. This method is simple and suitable for multi-board cards application scenarios.For 7 series FPGA, MultiBoot multi-image technology is adopted to realize multi-image startup, and the online reconstruction function is realized by directly updating M image. This method does not need external control chip, and the circuit is simple and the design is convenient, which is suitable for single-chip control situations.Using the BootROM and FSBL functions, ZYNQ chip is designed for online reconfiguration with multiple images in the configured memory, suitable for high performance applications.The three methods guarantee the reliable startup of FPGA and the online update function, which can ensure that the old version can still run or be reconfigured in case of update failure, thus enhancing the security and reliability of the system.

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王偉偉,閆新峰,修展,徐進(jìn),張甜.基于FPGA的在線(xiàn)重構設計方法計算機測量與控制[J].,2020,28(12):213-216.

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  • 收稿日期:2020-05-15
  • 最后修改日期:2020-06-03
  • 錄用日期:2020-06-04
  • 在線(xiàn)發(fā)布日期: 2020-12-15
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