网络传输程序设计。首先完成了遵循定位与指挥系统中接口通信协议规定 的通信数据的打包和解包。然后对比测试了 TCP 和 UDP 的传输速度。考 虑到 UDP 协议传输的速度优势,在应用层做出了可靠性改造,经过对停 等协议和滑动窗口协议的分析和比较,最终采用基于停等协议的改造方 法,并完成了具体测试。 关键词:uClinux,移植,驱动程序,实时性,网络传输 I ABSTRACT With the development of Internet and the coming of the post-PC era, the embedded systems is becoming the focus of the IT industry and presenting broad market demand. The embedded systems with good support of networks and multi-tasking provide a new solution for data communications. The main task of this dissertation is to implement the network transmission functions of the interface module. This task comes from a project of location and command system. To increase the data transmission speed between the terminal and interface module, this dissertation uses embedded systems with integrated network support to implement the data transmission. Meanwhile, in order to apply current design of embedded systems to the project development in the future, this dissertation do some improvement for filesystem and real-time, which implements a universal embedded system platform. This dissertation uses a