本文描述了一種無線傳感器網絡節點的硬件平臺組成，分別對負責無線收發功能實現
的射頻芯片、負責數據采集的傳感器模塊、負責整體上工作的微處理器進行了描述，對和CC2420 與EM78815 微處理器的硬件接口進行了設計；然后介紹了本無線傳感器網絡系統整體軟件體系結構與設計，主要包括軟件總體架構、硬件驅動層設計和操作系統層設計。
關鍵字: 無線傳感器網絡；射頻芯片；微處理器；驅動
Design of a Wireless Sensor Network Node based on the Microprocessor
LI Yuxian (Xi'an Institute of Telecommunications, Shanxi Xi’an 710061)
Abstract: The hardware structure of a wireless sensor network is represented in this paper. The RF chip, which is responsible to implement the transmitting/receiving function, the sensor module, which is used to sample the data, the CPU are introduced and the hardware interface between CC2420 and EM 78815 is designed in detail. The software structure is referred, including the frame structure, hardware drive designing and operating system designing.
Keywords: Wireless Sensor Network; RF Chip; Microprocessor; Driver