[求助] 利尔达的串口转以太网

MAC地址我在初始化的时候已经设置了的，

unsigned long ulUser0 = 0x00452301, ulUser1 = 0x00ab8967;

unsigned char pucMACAddr[8];

pucMACAddr[0] = ulUser0 & 0xff;

   pucMACAddr[1] = (ulUser0 >> 8) & 0xff;

   pucMACAddr[2] = (ulUser0 >> 16) & 0xff;

   pucMACAddr[3] = ulUser1 & 0xff;

   pucMACAddr[4] = (ulUser1 >> 8) & 0xff;

   pucMACAddr[5] = (ulUser1 >> 16) & 0xff;