Meanwhile , the bluecat linux of lynuxworks " is app lied in our system in detail . we describe the advanced power management ( apm ) and flash filesystem ( ffs ) , in order to complete process management and acess the flash rom area in ep7312 . further we introduce the implementation of embedded gui and board support package ( bsp ) . the system we developed is efficiency , as well as easy to transplant to other communication systems , so it has a bright future with widely used it has been verified that the methods and plans mentioned in this paper are of great correctness in the practical applications 其中详细分析了bluecatlinux特有的先进功率管理( apm )软件实现对系统高效的多任务管理、快速灵活的任务间通信及闪存文件系统( ffs )的建立管理机制及编程实现,并说明了板级支持包( bsp )和设备驱动程序的编写。由于对复杂通信系统的设备所涉及的接口模块大部分电路是一样的,该主控模块略经修改可以作为一个通用嵌入式系统的模块,应用于其它系统或产品具有较广的应用前景。