init

code/device/lwip.c

@@ -22,6 +22,8 @@ static err_t tcp_recv_handle(void *arg, struct tcp_pcb *pcb, struct pbuf *p, err
 static void tcp_close_conn(struct tcp_pcb *pcb);
 err_t tcp_send_data(struct tcp_pcb *pcb, struct pbuf *p);
 
+static udp_pcb *gui_udp_pcb;
+
 void lwip_device_init(void)
 {
     unsigned char macArray[6] = MAC_ADDRESS;
@@ -35,6 +37,8 @@ void lwip_device_init(void)
     ConsolePrintf("lwIP HostIP:%d.%d.%d.%d\n", (ipAddr >> (0 * 8)) & 0xFF,
                   (ipAddr >> (1 * 8)) & 0xFF, (ipAddr >> (2 * 8)) & 0xFF,
                   (ipAddr >> (3 * 8)) & 0xFF);
+
+    gui_udp_pcb = udp_new();
 }
 
 /**
@@ -182,3 +186,16 @@ void lwip_udp_sendto(struct udp_pcb *pcb, unsigned int ip,int port,unsigned char
     udp_sendto(pcb,pbuf,&ip_dst,port);
     pbuf_free(pbuf);
 }
+
+/**
+ * udp Ïògui·¢ËÍÊý¾Ý
+ */
+void lwip_udp_send_gui(unsigned char* data,int len)
+{
+    struct ip_addr ip_dst;
+    ip_dst.addr = htonl(UI_IP_ADDRESS);
+    struct pbuf* pbuf = pbuf_alloc(PBUF_TRANSPORT, sizeof(struct pbuf), PBUF_REF);
+    pbuf->payload = data;
+    udp_sendto(gui_udp_pcb,pbuf,&ip_dst,UI_UDP_PORT);
+    pbuf_free(pbuf);
+}

code/device/lwip.h

@@ -22,4 +22,5 @@ void lwip_udp_send(struct udp_pcb *pcb,  unsigned char* data,int len);
 
 void lwip_udp_sendto(struct udp_pcb *pcb, unsigned int ip,int port,unsigned char* data,int len);
 
+void lwip_udp_send_gui(unsigned char* data,int len);
 #endif /* UITL_LWIP_UTIL_H_ */