uIP initialization function. uIP ÃʱâÈ ÇÔ¼ö.
This function should be called at boot up to initilize the uIP TCP/IP stack. ÀÌ ÇÔ¼ö´Â uIP TCP/IP ½ºÅÃÀÌ ½ÃÀ۵ɶ§ È£Ã⠵˴ϴÙ.