LPC1700 用周立功的开发板上的TCPIP改的。修正了一些BUG。但突然断网没有解决，可用硬件方式，网口灯灭强关TCP，就可以了。-With the development of LPC1700 ZhouLiGong TCPIP change on the board. Fixed some BUG. But suddenly broken network not solve, usable hardware way, WangKou lamp strong close TCP, it ca