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嵌入式系统中系统时钟在提升空间上日趋饱和,上层软件需求日趋复杂,基于单CPU的设计方案很难适应这样日益复杂的需要。文章提出了基于SOPC的多处理机解决方案。针对目前嵌入式系统中单处理器的不足,提出了基于NiosII的多处理机、多计算机、混合多处理机模型。通过分析比较,针对混合模型中的系统功能单元进行了深入地研究,设计了基于NiosII的可扩展紧耦合多处理器方案。
In embedded systems, the system clock is getting more and more saturated in the promotion space. The requirements of upper-layer software are becoming more and more complicated. The single-CPU-based design scheme is hard to adapt to such increasingly complex needs. The article presents a multi-processor solution based on SOPC. In view of the shortcoming of the single processor in the embedded system, a multi-processor, multi-computer and hybrid multiprocessor model based on NiosII is proposed. Through analysis and comparison, the system functional units in the hybrid model are deeply studied, and a scalable tightly coupled multiprocessor scheme based on NiosII is designed.