单片实现以太网功能的源代码，UIP1.0， uip已经实现了TCP服务端，内核已经预留UDP协议，需要自己修改部分代码。-The single-chip Ethernet function of the source code, UIP1.0, uip has achieved a TCP server, the kernel have been earmarked for the UDP protocol, you need to modify some code.