网上有许多关于DM9000网卡芯片的介绍，然而这些介绍大多是关于Linux或WinCE下的驱动程序或移植，很少有介绍单片机驱动DM9000的例子。本文详细介绍了调试DM9000E的过程，仅供参考。-There are many online card chip on the DM9000 introduction, however, most of these presentations are on Linux or WinCE driver or under the transplantation, very few examples of introduced Microprocessor DM9000. This paper describes the process of debugging DM9000E for reference purposes only.