从网站下的，试跑了一下，可以运行，稳定性还在测试中，注意下载后代码优化的选择，如果选择速度快，代码就要很多，我选择size-medium
编译后代码
97 780 bytes of CODE memory
96 433 bytes of DATA memory
808 bytes of CONST memory
刚刚够，今后打算外扩RAM ，IAR编译环境
下面是我写的一个UDP测试程序,放在任务中就可以了，回发端口9000（其实只要你用过VC编写TCP/IP,ucos函数定义都一样，拿来用都一样)
NET_ERR UDP_Err;
int MySockID;
struct sockaddr_in MySockAddr;
int bind_status;
int sock_addr_len;
int rx_msg_len;
MySockAddr.sin_family = AF_INET;
MySockAddr.sin_port = htons(9000);
MySockAddr.sin_addr.s_addr = htonl(INADDR_ANY);
sock_addr_len = sizeof(MySockAddr);
MySockID = socket(PF_INET,SOCK_DGRAM,IPPROTO_UDP);
bind_status = bind(MySockID,(struct sockaddr *)&MySockAddr,sizeof(struct sockaddr_in));
NetOS_Sock_RxQ_TimeoutSet(MySockID, NET_TMR_TIME_INFINITE, &UDP_Err);//阻塞式
while ( 1 )
{
rx_msg_len = recvfrom(MySockID,(void *)UDP_Buf,sizeof(TTCP_Buf),0,(struct sockaddr *)&MySockAddr,&sock_addr_len);
if(rx_msg_len>0)
{
sendto(MySockID,(void *)UDP_Buf,rx_msg_len,0,(struct sockaddr *)&MySockAddr,sizeof(struct sockaddr));
}
else
{
}
//OSTimeDlyHMSM(0, 0, 0, 250);
}
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