基于DM9000A的嵌入式以太网接口设计与实现

Design and realization of embedded Ethernet interface based on DM9000A

文章提出了一种基于32位ARM处理器LPC2468和以太网控制器DM9000A的嵌入式以太网接口设计方法。硬件方面主要涉及以太网网络接口电路的设计,软件方面主要涉及以太网控制芯片驱动程序和上层网路协议。该嵌入式系统网络接入方案具有硬件接口简单、外围器件少、价格低廉、开发周期短等特点。

This paper introduces a design of embedded Ethernet interface based on 32 ARM processor LPC2468 and controller DM9000A.The hardware design mainly includes the circuit of the interface,while the software design mainly includes the driver of the Ethernet chip and the protocol of the upper-network.This design has some merits such as simple hardware interface,few peripheral devices,low cost,short development cycle and so on.