摘要 嵌入式系統(tǒng)的硬件開發(fā)要求設(shè)計(jì)者對硬件資源非常熟悉，并能針對項(xiàng)目中的具體應(yīng)用，綜合考慮系統(tǒng)需求、性能指標(biāo)、成本等多方面因素，進(jìn)行總體規(guī)劃，從而得出已有條件下的最佳方案。文中嵌入式系統(tǒng)的設(shè)計(jì)具體涉及到CPU的選型及內(nèi)存、Flash和外圍接口的確定等內(nèi)容[1]。

　　關(guān)鍵詞 嵌入式LINUX；開發(fā)平臺；選擇；外圍接口

　　中圖分類號：TP316 文獻(xiàn)標(biāo)識碼：A 文章編號：1671-489X（2009）09-0090-02

　　Embedded LINUX System Hardware Development Platform//Li Meiju

　　Abstract The embedded system hardware development requests the designer to be extremely familiar to the hardware resources, And can aim at in the project the concrete application, the overall evaluation system demand, the performance index, the cost and so on the various factor, carries on the overall plan, thus obtains had under the condition preferred plan. This embedded system design involves specifically to the CPU shaping and the memory, Flash and the periphery connection indeed grades content.

　　Key words embedded LINUX；development platform；choose；the periphery connection

　　Author’s address Qingdao University of Science and Technology, Qingdao, Shandong 266061

　　1 微處理器的選擇

　　所有硬件選擇中，最關(guān)鍵的就是嵌入式處理器的定型，因?yàn)樗鼪Q定了整個(gè)系統(tǒng)的基本性能和其他外圍硬件的選用。