FPGA，xilinx，edk利用lwip协议实现以太网数据传输，xemac_add()处停止，没有报错

运行时老是停在xemac_add(echo_netif, &ipaddr, &netmask,&gw, mac_ethernet_address,PLATFORM_EMAC_BASEADDR)部分，在debug下调试，没有报错，也没有现象，求大神解救

1. #include <stdio.h>
   
2. 
   
3. #include "xparameters.h"
   
4. 
   
5. #include "netif/xadapter.h"
   
6. 
   
7. #include "platform.h"
   
8. #include "platform_config.h"
   
9. #ifdef __arm__
   
10. #include "xil_printf.h"
    
11. #endif
    
12. 
    
13. /* defined by each RAW mode application */
    
14. void print_app_header();
    
15. int start_application();
    
16. int transfer_data();
    
17. 
    
18. /* missing declaration in lwIP */
    
19. void lwip_init();
    
20. 
    
21. static struct netif server_netif;
    
22. struct netif *echo_netif;
    
23. 
    
24. void
    
25. print_ip(char *msg, struct ip_addr *ip)
    
26. {
    
27. print(msg);
    
28. xil_printf("%d.%d.%d.%d\n\r", ip4_addr1(ip), ip4_addr2(ip),
    
29. ip4_addr3(ip), ip4_addr4(ip));
    
30. }
    
31. 
    
32. void
    
33. print_ip_settings(struct ip_addr *ip, struct ip_addr *mask, struct ip_addr *gw)
    
34. {
    
35. 
    
36. print_ip("Board IP: ", ip);
    
37. print_ip("Netmask : ", mask);
    
38. print_ip("Gateway : ", gw);
    
39. }
    
40. 
    
41. int mAIn()
    
42. {
    
43. struct ip_addr ipaddr, netmask, gw;
    
44. 
    
45. /* the mac address of the board. this should be unique per board */
    
46. unsigned char mac_ethernet_address[] =
    
47. { 0x00, 0x0a, 0x35, 0x00, 0x01, 0x02 };
    
48. 
    
49. echo_netif = &server_netif;
    
50. 
    
51. init_platform();
    
52. 
    
53. /* initliaze IP addresses to be used */
    
54. IP4_ADDR(&ipaddr,192, 168,1, 10);
    
55. IP4_ADDR(&netmask, 255, 255, 255,0);
    
56. IP4_ADDR(&gw,192, 168,1,1);
    
57. 
    
58. print_app_header();
    
59. print_ip_settings(&ipaddr, &netmask, &gw);
    
60. 
    
61. lwip_init();
    
62. 
    
63. /* Add network interface to the netif_list, and set it as default */
    
64. if (！xemac_add(echo_netif, &ipaddr, &netmask,
    
65. &gw, mac_ethernet_address,
    
66. PLATFORM_EMAC_BASEADDR)) {
    
67. xil_printf("Error adding N/W interface\n\r");
    
68. return -1;
    
69. }
    
70. netif_set_default(echo_netif);
    
71. 
    
72. /* Create a new DHCP client for this interface.
    
73. * Note: you must call dhcp_fine_tmr() and dhcp_coarse_tmr() at
    
74. * the predefined regular intervals after starting the client.
    
75. */
    
76. /* dhcp_start(echo_netif); */
    
77. 
    
78. /* now enable interrupts */
    
79. platform_enable_interrupts();
    
80. 
    
81. /* specify that the network if is up */
    
82. netif_set_up(echo_netif);
    
83. 
    
84. /* start the application (web server, rxtest, txtest, etc..) */
    
85. start_application();
    
86. 
    
87. /* receive and process packets */
    
88. while (1) {
    
89. xemacif_input(echo_netif);
    
90. transfer_data();
    
91. }
    
92. 
    
93. /* never reached */
    
94. cleanup_platform();
    
95. 
    
96. return 0;
    
97. }
    
98. 
    

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最近正在做这个，不知道你的问题解决了吗?