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1 引言嵌入式计算机系统(下称嵌入式系统)是实时系统的重要组成部分,其结构紧凑、资源有限,一般由嵌入式微处理器等硬件及其软件(包括实时操作系统RTOS和实时应用程序)组成,具有嵌入性和实时性等特点。它通常以SOC(system on chip)、单片机、单板机、多板式箱体结构、嵌入式PC等形式嵌入到各式各样的设备或大系统(如数字移动电话、路由器、导弹)
1 Introduction Embedded computer system (hereinafter referred to as embedded system) is an important part of real-time system, its compact structure, limited resources, usually by embedded microprocessors and other hardware and software (including real-time operating system RTOS and real-time applications) Composition, with embedded and real-time characteristics. It is usually embedded into a wide range of devices or large systems (such as digital mobile phones, routers, missiles) in the form of SOC (system on chip), single chip microcomputer, single board computer, multi-board box structure,