This paper detailedly introduces the whole design scheme of the system, the circuit on interface module and 89c51, the method of the software design and program flow chart.
详细阐述了系统的总体设计方案，给出了界面模块与89c51接口电路，最后介绍了软件设计方法及程序流程图。
Online program function (ISP) : offer one online program communication port, can download various protection software module, the first system chart freely, need not disassemble the equipment.
在线编程功能(isp)：提供一个在线编程通讯接口，可自由下载各种保护软件模块、一次系统图，无须拆卸装置。
The work flow of system and the flow chart of each TCP/IP module are given out, too.
文中给出了系统的工作流程以及TCP／IP各个了模块实现的流程图。
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