As one of the candidates for the next generation embedded system interconnect, the high speed serial RapidIO bus has features, such as high transmission rate,low time delay, and high reliability, and can satisfy the needs of IMA.The development process of the interconnect bus has been described, and then the characteristics of RapidIO protocol have been elucidated, and at last some interconnect models based on the RapidIO bus have been offered for the needs of the embedded system in the domain of GNC.%RapidIO高速串行总线作为新一代嵌入式系统互连总线,具有高速度、低延时、高可靠性等特性,同时能够很好地适应综合的模块化航空电子设备(IMA)的要求.介绍了互连总线的发展过程,对分析了串行RapidIO协议特点,针对GNC领域嵌入式系统的要求,给出了基于串行RapidIO总线的互连模型.
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