EFI支持引导设备，使用一层内存模型并向操作系统隐藏平台和固件详细信息。
EFI supports boot devices, USES a flat memory model, and hides platform and firmware details from the operating system.
其中固件层主要基于89C2051单片机来探讨底层测控系统软件的实现；
The firmware layer mainly discusses the realization of bottom layer in software based on 89C2051 SCM;
为了取得系统的全局性能改善，必须将一些功能迁移到固件层，只迁移少数几个功能是远远不够的。
For global performance improvement, it is not enough to migrate a few functions but a set of functions.
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