PA6488开发指南 - 已知错误     函数include 调用函数时必须include相关的include文件. 例如调用sprintf()而没有include stdio.h的话编译器并不会抱错, 但是执行结果会跑飞.     结构中跨越32位边界的数据 当结构映射到内存中时, 在结构中跨越32位边界的UINT的值会出错. 在arp.c中发现 typedef struct _ARP_FORMAT { USHORT sHardwareType; /* hardware type */ USHORT sProtocolType; /* protocol type */ UCHAR cHardwareLen; /* hardware address length */ UCHAR cProtocolLen; /* protocol address length */ USHORT sOperation; /* T_ARP_FORMAT operation (see AR_XXXX list above) */ UCHAR pcSHA[HW_ALEN]; /* sender's physical hardware address */ UCHAR pcSPA[IP_ALEN]; /* sender's protocol address (IP addr.) */ UCHAR pcTHA[HW_ALEN]; /* target's physical hardware address */ UCHAR pcTPA[IP_ALEN]; /* target's protocol address (IP) */ } T_ARP_FORMAT; 如果改为 typedef struct _ARP_FORMAT { USHORT sHardwareType; /* hardware type */ USHORT sProtocolType; /* protocol type */ UCHAR cHardwareLen; /* hardware address length */ UCHAR cProtocolLen; /* protocol address length */ USHORT sOperation; /* T_ARP_FORMAT operation (see AR_XXXX list above) */ UCHAR pcSHA[HW_ALEN]; /* sender's physical hardware address */ UINT iSPA; /* sender's protocol address (IP addr.) */ UCHAR pcTHA[HW_ALEN]; /* target's physical hardware address */ UINT iTPA; /* target's protocol address (IP) */ } T_ARP_FORMAT; iSPA的值是错误的, 而iTPA是正确的.