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随着高速光纤总线技术的逐渐成熟,具备高传输速率、高可靠性、低响应延迟、低线缆总重等特点的光纤总线开始在航天领域得到应用。在航天光纤总线的研究中,光纤通道是研究的热点。本文研究了光纤通道的交换式拓扑,并结合航天器的实际工作要求,提出了基于FPGA的光纤通道交换式拓扑的实现方案,重点设计了光纤通道的交换结构和交换器。通过Quartus II的仿真以及硬件实物实验验证了该方案的可行性。
With the gradual maturity of high-speed optical fiber bus technology, optical bus with high transmission rate, high reliability, low response delay, low total cable weight and other characteristics of the optical bus began to be applied in the field of aerospace. In the research of space optical fiber bus, Fiber Channel is the hotspot of research. In this paper, we study the switched topology of Fiber Channel, and put forward the implementation scheme of Fiber Channel switched topology based on FPGA, combined with the actual working requirements of spacecraft, and focus on the design of the switch fabric and switch of Fiber Channel. The feasibility of the scheme is verified by the simulation of Quartus II and the hardware experiments.