一个PDA数据链路层模块的设计与实现

A Design and Implementation of Data Link Layer Module for PDA

PDA成为便捷的手持网络终端设备是一种应用趋势。在PDA接入网络的众多方式中,目前比较经济实用的方式,是通过拨号连接ISP的接入模式。这种模式下使用的数据链路层协议主要是PPP。该文详细描述了PPP在PDA数据链路层模块上的设计和实现。由于代码完全用ANSIC实现,这一模块的代码在通过编译、连接后,可以运行在任何裸机上。

It is the fact and trend that PDA is a convenient network terminal.Among the increasing practical ways to connect PDA with Internet,the dial-up connection service from ISP is now widely accepted,which is reasonable for today's processing capability of PDA.PPP is the basic protocol of the Data Link Layer in this solution.This paper describes a design and implementation of such a Data Link Layer module,PPP,for PDA.Since authors use ANSI C to implement it,this module can be easily ported to any bare PDAs.