Setting Static IP for AP Mode not working

[Pratikm78]

I am trying to perform a wifi scan to get the available wifi networks. Then switch to AP mode to host a web page from spiffs. However require the static IP address to be set. However this is not working. Followed the documentation on netif. Please assist this seems like it should be simple

Code: [Select all] [Expand/Collapse]

1. void WEBCONFIG_Init()
2. {
3.     esp_err_t ret = nvs_flash_init();
4.     if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND)
5.     {
6.         ESP_ERROR_CHECK(nvs_flash_erase());
7.         ret = nvs_flash_init();
8.     }
9.     ESP_ERROR_CHECK(ret);
10.     ESP_ERROR_CHECK(esp_netif_init());
11.     ESP_ERROR_CHECK(esp_event_loop_create_default());
12.     esp_netif_t *ap_netif = esp_netif_create_default_wifi_ap();
13.     assert(ap_netif);
14.      
15.  
16.     wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
17.     ESP_ERROR_CHECK(esp_wifi_init(&cfg));
18.     uint16_t number = 10;
19.     wifi_ap_record_t ap_info[10];
20.     uint16_t ap_count = 0;
21.     memset(ap_info, 0, sizeof(ap_info));
22.  
23.     ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_APSTA));
24.     ESP_ERROR_CHECK(esp_wifi_start());
25.     esp_wifi_scan_start(NULL, true);
26.     ESP_ERROR_CHECK(esp_wifi_scan_get_ap_records(&number, ap_info));
27.     ESP_ERROR_CHECK(esp_wifi_scan_get_ap_num(&ap_count));
28.     ESP_LOGI(TAG, "Total APs scanned = %u", ap_count);
29.     cJSON *ssidArray, *root;
30.     root = cJSON_CreateObject();
31.     cJSON_AddItemToObject(root, "ssid", ssidArray = cJSON_CreateArray());
32.  
33.     for (int i = 0; (i < 10) && (i < ap_count); i++)
34.     {
35.         cJSON_AddStringToObject(ssidArray, "ssid", (char *)ap_info[i].ssid);
36.     }
37.  
38.     char *string = cJSON_PrintUnformatted(root);
39.     printf("%s\n", string);
40.     memset(WifiJsonBuffer, 0x00, sizeof(WifiJsonBuffer));
41.     strcpy(WifiJsonBuffer, string);
42.     cJSON_Delete(root);
43.     cJSON_free(string);
44.  
45.     esp_wifi_stop();
46.  
47.     ESP_ERROR_CHECK(esp_event_handler_instance_register(WIFI_EVENT,
48.                                                         ESP_EVENT_ANY_ID,
49.                                                         &wifi_event_handler,
50.                                                         NULL,
51.                                                         NULL));
52.  
53.     wifi_config_t wifi_config = {
54.         .ap = {
55.             .ssid = "smart1",
56.             .max_connection = 3,
57.             .authmode = WIFI_AUTH_OPEN},
58.     };
59.     ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_AP));
60.  
61.  
62.     ESP_ERROR_CHECK(esp_netif_dhcpc_stop(ap_netif));
63.  
64.     esp_netif_ip_info_t ip_info;
65.  
66.     IP4_ADDR(&ip_info.ip, 10, 0, 10, 5);
67.     IP4_ADDR(&ip_info.gw, 10, 0, 10, 1);
68.     IP4_ADDR(&ip_info.netmask, 255, 255, 255, 0);
69.  
70.     ESP_ERROR_CHECK(esp_netif_set_ip_info(ap_netif, &ip_info));
71.     ESP_ERROR_CHECK(esp_wifi_set_config(WIFI_IF_AP, &wifi_config));
72.     ESP_ERROR_CHECK(esp_wifi_start());
73. }

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[ESP_YJM]

Maybe you need change ESP_ERROR_CHECK(esp_netif_dhcpc_stop(ap_netif)); to ESP_ERROR_CHECK(esp_netif_dhcps_stop(ap_netif));

[Pratikm78]

@ESP_YJM your suggestion did stop the dchp however it is not setting a static IP

[ESP_YJM]

Which error you got. Could you please describe it.

[Pratikm78]

No IP is assigned now.

Code: [Select all] [Expand/Collapse]

1. I (10505) wifi:new:<1,1>, old:<1,1>, ap:<1,1>, sta:<255,255>, prof:1
2. I (10515) wifi:station: f8:5e:a0:df:e5:cb join, AID=1, bgn, 40U
3. I (10515) web config: station f8:5e:a0:df:e5:cb join, AID=1
4. I (10515) web config: starting server
5. W (10665) wifi:<ba-add>idx:4 (ifx:1, f8:5e:a0:df:e5:cb), tid:0, ssn:9, winSize:64
6. I (44735) wifi:station: f8:5e:a0:df:e5:cb leave, AID = 1, bss_flags is 134243, bss:0x3ffd0270
7. I (44735) wifi:new:<1,0>, old:<1,1>, ap:<1,1>, sta:<255,255>, prof:1
8. W (44735) wifi:<ba-del>idx
9. I (44735) web config: station f8:5e:a0:df:e5:cb leave, AID=1

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[ESP_YJM]

You can add esp_netif_dhcps_start(netif); after ESP_ERROR_CHECK(esp_netif_set_ip_info(ap_netif, &ip_info));