本文重点描述了在Windows CE5.0 内核下实现PC/104 与GPS 的通信,构建了PC/104 读写GPS 信息的硬件系统,深入剖析了Windows CE5.0 下进行多线程串口通信的软件实现机制,并展现了其在超长周期大地电磁仪中的成功应用。 关键词:多线程;Windows CE5.0;PC/104 Multithreading Serial Port Communication under Windows CE Kernel CHEN Kai, DENG Ming, ZHANG QiSheng, LI Mei (China University of Geosciences, Geo-detection Laboratory, Ministry of Education, Beijing 100083, China ;) Abstract: This paper mainly discusses the Communication between PC/104 and GPS under Windows CE5.0 kernel, constructs the hardware system of PC/104 read-write GPS information, analyzes the software mechanism of multithreading COM communication, and exhibits the successful application in LMT(Long period Magnetotelluric Instrument). Keywords: Multithreading; Windows CE5.0; PC/10