摘要
TCP/IP协议作为Internet上的通信实现方式的一种,是近年来嵌入式应用领域的一个研究热点^([1])。DCS现场控制站主控模块^([2])作为嵌入式设备的一种,要与Internet网络直接交换信息^([3]),就需要支持TCP/IP协议。然而嵌入式系统具有内核小、专用性强、系统精简、实时性高、功耗和环境要求严格等特点,传统的TCP/IP协议不适合移植到嵌入式系统中,所以需要开发一种轻便型的TCP/IP协议栈,
As a realization of Internet communications protocol, the TCP/IP protocol is a hot research topic in the field of embedded applications in recent years. So as a kind of embedded equipment, the master control module of DCS Field Control Station will need the support of the TCP/IP protocol when it wants to exchange information on the internet directly. However, the embedded system has some characteristics like small kernel, strong specificity, compact, high real-time, strict requirement on power consumption and environment, which make the traditional TCP/IP protocol is not suitable for embedded systems, so we need to develop a kind of the TCP/IP protocol stack with light model.