stm32f107 udp client 调用udp_send(upcb, p)之后无法跳出

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fan-347685 发布时间：2015-8-9 22:11

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我的板子为神州IV，，，调试UDP client时，调用udp_send(upcb, p)之后，server端也能接收到发送的内容，，但是程序指针跑到了void HardFault_Handler(void)死循环中，，，不知道什么引起的，求解？？？？
void client_init(void)
{
struct udp_pcb *upcb;
struct pbuf *p;
err_t ret;
uint8_t Sent[]="fanqh test udp client\r\n";

/* Create a new UDP control block  */
upcb = udp_new();

/* Connect the upcb  */
udp_connect(upcb, IP_ADDR_BROADCAST, UDP_SERVER_PORT);

p = pbuf_alloc(PBUF_TRANSPORT, 0, PBUF_RAM);

p->payload = Sent;
p->tot_len=p->len = sizeof(Sent);
/* Send out an UDP datagram to inform the server that we have strated a client application */
udp_send(upcb, p); /////////////////////////////////////////////////程序执行到这个函数后调到死循环HardFault_Handler{}中

/* Reset the upcb */
udp_disconnect(upcb);

/* Bind the upcb to any IP address and the UDP_PORT port*/
  ret = udp_bind(upcb, IP_ADDR_ANY, UDP_CLIENT_PORT);

/* Set a receive callback for the upcb */
udp_recv(upcb, udp_client_callback, NULL);

/* Free the p buffer */
pbuf_free(p);

}