远程控制终端数据接口设计

字数:15364,页数:29   文档编号:TX108

摘要

电脑中的远程控制技术，始于DOS时代，随着网络的高度发展，电脑的管理及技术支持的需要，远程操作及控制技术越来越引起人们的关注。远程控制一般支持下面的这些网络方式：局域网、WAN、拨号方式、互联网方式。主控端Remote远距离去控制被控端Host, 被控端Host又与外设相连，完成外部数据的获取，进而完成工业上的一系列控制操作。但是一般CPU不能直接与外设交互，它们之间需要接口作为桥梁，I/O接口作为中介完成了CPU与外设之间信息的交互。本文从接口的分类，接口的结构，接口的功能，接口的协议等几方面进行介绍，着重分析了我们最为熟知的串口，并口及USB口。串口通信所用传输线路少，适用于远距离通信；并口传输速度快，效率高，但只适合短距离通信；USB口在传统计算机组织结构基础上，引入网络的某些技术，以成为新型计算机接口的主流。使用VC++6.0可视化软件编程平台，完成串口的双机通信，并口的打印程序，USB口与驱动程序的交互。

关键词: 串口；并口;USB口

Abstract

Long-range control technology of computer, start at DOS era, with the high development of the network, the management of the computer and need of technical support, operate long-rangly and the control technology arouse the attention from people more and more. Control and generally support these following network ways long-rangly : LAN , WAN , dial mode , Internet way. Top management end Remote go, control, accuse of end Host , accuse of end Host bonded to peripheral hardware also remotely, finish the acquisition of the outside data, and then finishes a series of control operation commercially. But general CPU can't be mutual with the peripheral hardware directly, they need interface as bridge , I/O interface finish CPU as intermediary and peripheral hardware information mutual. This text is from the classification in the interface , several respects such as the structure of the interface , the function of the interface , the agreement of the interface make an introduction, having analyzed one bunch of mouths that we know very well most emphatically, and the mouth of mouth and USB. Bunches of mouthfuls of communication little circuit of transmitting spent, suitable for remote communication; And the mouth is transmitted fast, high in efficiency, but only suitable for the communication of short distance; USB mouth introduces some technology of the network on the basis of traditional computer institutional framework , in order to become the mainstream of interface of new computer. Use VC 6.0 visual software programming platform, finish double machine communication of one bunch of mouths , and the procedure of printing of the mouth, USB mouth and driver one is mutual.

Key Words: Serial port; Paralell port; Universal serial bus

目录
摘要  1
Abstract  1
1 引言   5
2 概述   5
2.1 接口分类  6
2.2 接口组成   6
2.3 接口功能   7
3 串口  7
3.1 串行通信总述   7
3.1.1串行通信的概念   8
3.1.2 串行通信的结构  8
3.2 串行通信信息传送方式  9
3.2.1 全双工  9
3.2.2 半双工  9
3.3串行通信操作方式  10
3.3.1 异步方式  10
3.3.2同步方式   10
3.4串口实现双机通信编程   11
3.4.1功能描述及界面  11
3.4.2系统架构  12
3.4.3串行通信编程方法   12
3.4.4串口通信协议   13
4 并口  13
4.1并行通信总述   14
4.2并行通信特点  14
4.3并行通信模式  14
4.3.1.SPP模式   14
4.3.2.PS/2模式   14
4.3.3.EPP模式   15
4.3.4.ECP模式  15
4.4并口引脚   15
4.4.1数据寄存器与引脚对应   16
4.4.2状态寄存器与引脚对应  16
4.4.3控制寄存器与引脚对应  17
5 USB口   18
5.1 USB系统   19
5.1.1 USB 的连接  19
5.1.2 USB 主机  19
5.1.3 USB 器件  20
5.2 USB的数据传输模式  22
5.2.1字段  22
5.2.2资料包  23
5.2.3传输模式   24
5.3 USB外设的初始化   25
5.4查询USB设备信息编程  26
5.4.1功能   26
5.4.2界面   27
6 结论  27
致谢  28
参考文献   29

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