文档介绍：济源职业技术学院
毕业设计(论文)
题目
基于ENC28J60的以太网设计与实现
系别
信息工程系
专业
计算机应用技术
班级
计应1001班
姓名
学号
指导教师
日期
摘要
迅猛发展,IP已经占据了各种终端应用的主导地位,而如何更高效、高速、廉价的传送IP数据是今后网络研究的重点。到目前,各种接入网技术之所以能够发展起来,更是适应了当今网络的发展,但是这些技术都存在着一个相同的问题:成本较高、性价比不高。而提到廉价,人们会很自然地想到以太网技术,但是能否接入网到这一网络环境中还需要认真研究。
ENC28J60是MicrochipTechnology(美国微芯科技公司) 于2005年推出的一款28引脚的独立以太网控制器,由于采用SPI串行接口方式,简化了设计。本文介绍了其特性、内部结构、引脚功能和ENC28J60的硬件结构与接口电路,详细分析了其寄存器设置和工作过程。ENC28J60采用标准的SPI串行接口,通过程序的编写、TCP/IP协议的应用,只需4条连线即可实现与单片机连接,有利于在小型系统上实现以太网功能。
本设计根据协议的移植,由单片机处理模块、以太网控制器模块、协议模块等部分组成。实现了以太网控制器与单片机之间的基本数据传输。
关键词:以太网接入;单片机;ENC28J60;SPI接口;TCP/IP移植
ABSTRACT
With the rapid development of , IP have occupied various terminal application dominance, and how to more efficient, high-speed, low-cost transmission of IP data is the future work research focus. At present, all kinds of work technology 's development, it is to adapt to today'work development, but these techniques have an identical problem: high cost, not cheap. While references to cheap, people will naturally think of technology, but whether the work to work environment also need to seriously study.
ENC28J60 is the MicrochipTechnology ( American microchip pany ) in 2005 launched a 28 pin independent controller, due to the use of SPI serial interface, simplifying the design. This paper introduces the characteristics, internal structure, pin function and ENC28J60 hardware structure and interface circuit, a detailed analysis of the register set and working process. ENC28J60 uses standard SPI serial interface, through the program, TCP/IP protocol application, only 4 lines can be connected with the single chip puter, is advantageous in the small system function.
According to the design of protocols for transplantation, composed of a single chip puter processing module, controller module, protocol module and ponents. Realization of controller and SCM basic data transmission.
Key words: access; single chip puter; ENC28J60; SPI interface; TCP/IP transplantation
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