ESP32 Forum

Posted: **Fri Jan 26, 2018 1:31 pm**

Hi All,
I use a WIFI connection, and after init (about 5 minutes) the wifi connection breaks.

Here is the log message:

I (822129) wifi: bcn_timout,ap_probe_send_start
I (824632) wifi: ap_probe_send over, resett wifi status to disassoc
I (824632) wifi: state: run -> init (1)
I (824633) wifi: n:1 0, o:1 0, ap:255 255, sta:1 0, prof:1
I (824636) wifi: pm stop, total sleep time: 0/820681527

I use dhcp, and here is the wifi init code:

Code: Select all

  nvs_flash_init();

    tcpip_adapter_init();
    esp_log_level_set("*", ESP_LOG_DEBUG);

    ESP_ERROR_CHECK( esp_event_loop_init(event_handler, NULL) );

    wifi_init_config_t cfg=WIFI_INIT_CONFIG_DEFAULT();

    ESP_ERROR_CHECK( esp_wifi_init(&cfg) );
    ESP_ERROR_CHECK( esp_wifi_set_storage(WIFI_STORAGE_RAM) );
    ESP_ERROR_CHECK( esp_wifi_set_mode(WIFI_MODE_STA) );
    wifi_config_t sta_config = {
        .sta = {
            .ssid = CONFIG_WIFI_AP,
            .password = CONFIG_WIFI_PW,
            .bssid_set = false
        }
    };
    ESP_ERROR_CHECK( esp_wifi_set_config(WIFI_IF_STA, &sta_config) );
    ESP_ERROR_CHECK( esp_wifi_start() );

and I have an event handler:

Code: Select all

esp_err_t event_handler(void *ctx, system_event_t *event) {
	switch(event->event_id) {

	case SYSTEM_EVENT_STA_START:
		ESP_LOGD(LOG_TAG, "SYSTEM_EVENT_STA_START");
		esp_wifi_connect();
		break;

	 case SYSTEM_EVENT_STA_DISCONNECTED:
		  ESP_LOGD(LOG_TAG, "SYSTEM_EVENT_STA_DISCONNECTED");
	      esp_wifi_connect();
	      xEventGroupClearBits(wifi_event_group, EVT_WIFI_CONNECTED);
	      break;

	 case SYSTEM_EVENT_STA_LOST_IP :
		 wifi_reinit();
		 break;

	 case SYSTEM_EVENT_STA_GOT_IP:
		  ESP_LOGD(LOG_TAG, "SYSTEM_EVENT_STA_GOT_IP");
		  ESP_LOGI(LOG_TAG, "ip address:%s\n", inet_ntoa(event->event_info.got_ip.ip_info.ip.addr));
	      xEventGroupSetBits(wifi_event_group, EVT_WIFI_CONNECTED);
	      break;

	default:
		ESP_LOGD(LOG_TAG, "System event code:%d", event->event_id);
		break;
	}
    return ESP_OK;
}

but it cannot catch this problem.
How can I catch this, and how can I reconnect when it happens?

My hw is an ESP WROVER KIT V3, and ESP_IDF is a fresh master branch in git repository.

thx,
Zamek

ESP32 Forum

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