【HarmonyOS HiSpark Wi-Fi IoT 套件试用连载】wifi连上不网

本文来源电子发烧友社区，作者：华仔stm32， 帖子地址：https://bbs.elecfans.com/jishu_2287654_1_1.html


跟着这篇学习了一下wifi连网：【HarmonyOS HiSpark Wi-Fi IoT 套件试用连载】第5章 WiFi联网(STA模式) - HarmonyOS技术社区-电子技术论坛- 广受欢迎的专业电子论坛! (elecfans.com)。

wifi_app.c:

1. /**
2. ******************************************************************************
3. * [url=home.php?mod=space&uid=1455510]@file[/url] wifi_app.c
4. * [url=home.php?mod=space&uid=40524]@author[/url] BruceOu
5. * [url=home.php?mod=space&uid=644434]@version[/url] V1.0
6. * @date 2022-06-19
7. * [url=home.php?mod=space&uid=2676013]@blog[/url]
8. * [url=home.php?mod=space&uid=3179494]@Official[/url] Accounts
9. * [url=home.php?mod=space&uid=2666770]@Brief[/url]
10. ******************************************************************************
11. */
12. #include
13. #include
14. #include "ohos_init.h"
15. #include "cmsis_os2.h"
17. #include"hi_wifi_api.h"
18. #include"lwip/ip_addr.h"
19. #include "lwip/netifapi.h"
21. #define SSID "HUAWEI-21321312"
22. #define PASSWORD "12423424234@"
24. static struct netif *g_lwip_netif = NULL;
26. /**
27. * @briefSet netif's ip, gatewayand netmask
28. * [url=home.php?mod=space&uid=3142012]@param[/url]pst_lwip_netif
29. * @retval None
30. */
31. void hi_sta_set_addr(struct netif *pst_lwip_netif)
32. {
33. ip4_addr_t st_gw;
34. ip4_addr_t st_ipaddr;
35. ip4_addr_t st_netmask;
36. if (pst_lwip_netif == NULL)
37. {
38. printf("hisi_reset_addr::Nullparam of netdevrn");
39. return;
40. }
41. IP4_ADDR(&st_gw, 192, 168, 3, 1);
42. IP4_ADDR(&st_ipaddr, 192, 168, 3,100);
43. IP4_ADDR(&st_netmask, 255, 255, 255,0);
44. netifapi_netif_set_addr(pst_lwip_netif,&st_ipaddr, &st_netmask, &st_gw);
45. }
46. /**
47. * @briefWifi connect
48. * @paramNone
49. * @retval None
50. */
51. int hi_wifi_start_connect(void)
52. {
53. int ret;
54. errno_t rc;
55. hi_wifi_assoc_request assoc_req = {0};
56. // Copy SSID to assoc_req
57. rc = memcpy_s(assoc_req.ssid,HI_WIFI_MAX_SSID_LEN + 1, SSID, strlen(PASSWORD));
58. if (rc != EOK)
59. {
60. printf("[Wifi Connnect]hi_wifi_sta_connect fail");
61. printf("%s %d rn",__FILE__, __LINE__);
62. return -1;
63. }
64. //Set encryption method
65. assoc_req.auth = HI_WIFI_SECURITY_WPA2PSK;
66. // Wifi password
67. memcpy(assoc_req.key, PASSWORD,strlen(PASSWORD));
68. ret = hi_wifi_sta_connect(&assoc_req);
69. if (ret != HISI_OK)
70. {
71. printf("[WifiConnnect] hi_wifi_sta_connect fail");
72. printf("%s %d rn",__FILE__, __LINE__);
73. return -1;
74. }
75. return 0;
76. }
77. /**
78. * @briefwifi task
79. * @paramNone
80. * @retval None
81. */
82. void wifi_task(void)
83. {
84. int ret;
85. char ifname[WIFI_IFNAME_MAX_SIZE + 1] ={0};
86. int len = sizeof(ifname);
87. unsigned intnum = WIFI_SCAN_AP_LIMIT;
88. //Step 1: Start STA mode, AT+STARTSTA
89. ret = hi_wifi_sta_start(ifname, &len);
90. if (ret != HISI_OK)
91. {
92. printf("[Wifi Connnect]hi_wifi_sta_start fail");
93. printf("%s %d rn",__FILE__, __LINE__);
94. return;
95. }
96. // Step 2: Connect to the specified AP:,AT+CONN="SSID", ,2,"PASSWORD"
97. ret = hi_wifi_start_connect();
98. if (ret != 0)
99. {
100. printf("[Wifi Connnect]hi_wifi_start_connect fail");
101. printf("%s %d rn",__FILE__, __LINE__);
102. return ;
103. }
104. // Step 3: DHCP requests the IP address ofwlan0 from the AP, AT+DHCP=wlan0,1
105. g_lwip_netif = netifapi_netif_find(ifname);
106. if(NULL == g_lwip_netif)
107. {
108. printf("[Wifi Connnect]netifapi_netif_find fail");
109. printf("%s %d rn",__FILE__, __LINE__);
110. return;
111. }
112. //DHCP automatically assigns IP
113. if(ret !=netifapi_dhcp_start(g_lwip_netif))
114. {
115. printf("[Wifi Connnect]netifapi_dhcp_start fail");
116. return;
117. }
118. printf("[Wifi Connnect] Connect towifi successfullyn");
119. }
120. SYS_RUN(wifi_task);

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BUILD.gn:

1. static_library("wifi_app") {
2. sources = [
3. "wifi_app.c"
4. ]
5. include_dirs = [
6. "//utils/native/lite/include"
7. ]
8. }

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app/BUILD.gn为：

1. import("//build/lite/config/component/lite_component.gni")
3. lite_component("app") {
4. features = [
5. "iothardware:led_example",
6. "wifi_connect:wifi_app"
7. ]
8. }

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编译通过，下载后显示wifi连接成功，但是报错：

1. ready to OS start
2. sdk ver:Hi3861V100R001C00SPC025 2020-09-03 18:10:00
3. FileSystem mount ok.
4. wifi init success!
5. hilog will init.
7. hievent will init.
9. hievent init success.
11. [Wifi Connnect] Connect towifi successfully
12. hiview init success.
13. No crash dump found!
14. +NOTICE:SCANFINISH
15. +NOTICE:NETWORK NOT FIND
16. +NOTICE:SCANFINISH
17. +NOTICE:NETWORK NOT FIND

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麻烦各位大佬帮解答一下。