基于ARM和Linux的DM9000网络接口设计及驱动实现

摘要

DM9000 is a widely used Ethernet chip in the arena of embedded systems. This paper makes an in-depth study of embedded systems baesd on the use of ARM920Tchips S3C2440 and network chip DM9000 interface circuits, analyses and gives the network device driver functionality abstraction of design templates in the Linux operating system, and realizes the DM9000 network interface's driver finally,which gives a good example to network device driver development.%DM9000 是目前在嵌入式系统中广泛应用的以太网芯片.本文在深入研究嵌入式系统的基础上,采用ARM920T系列芯片S3C2440和网络接口芯片DM9000接口电路,在Linux操作系统下分析并给出了网络设备驱动功能层抽象设计模板,最终实现了对DM9000网卡接口的驱动,为网络设备驱动开发提供了很好的范例.