说明：  VxWorks下网卡驱动程序的开发,本文首先从整体上分析VxWorks 网卡驱动程序的原理和结构，然后深入地分析Rtl8139C网卡驱动程序的结构以及实现，本文对于VxWorks下的同类开发也有一定参考作用。
(NIC driver under VxWorks development, this article from the overall analysis of the first network card driver VxWorks principle and structure, and then Rtl8139C-depth analysis of the structure of the network card driver as well as the realization of this article for a similar development under VxWorks has some reference value.)