ucos操作系统下，对lan91c11的驱动。 此程序最好和ucos的uctcpip结合使用。也可以直接参照代码实现c下的芯片lan91c11的驱动-uCOS operating system on the drive lan91c11. This program the best and the uctcpip uCOS combination. Can also realize direct reference to the code c under lan91c11 chip driv