esp-idf 中查询 Wi-Fi 连接失败的原因

Jasmine ·

更新时间:2024-11-15

· 971 次阅读

在 Wi-Fi 连接失败的部分添加以下代码：

ESP_LOGI(TAG,"reason: fail %d\n", event->event_info.disconnected.reason);

例如：

    case SYSTEM_EVENT_STA_DISCONNECTED:
        {
            if (s_retry_num event_info.disconnected.reason);
            break;
        }

然后编译，烧录，打开串口监视器。如果 Wi-Fi此时会在终端查看到对应的错误原因，例如：

I (10654) wifi station: connect to the AP fail
I (10654) wifi station: reason: fail 201

附：Wi-Fi 连接失败的 reason 对照表：

typedef enum {
    WIFI_REASON_UNSPECIFIED              = 1,
    WIFI_REASON_AUTH_EXPIRE              = 2,
    WIFI_REASON_AUTH_LEAVE               = 3,
    WIFI_REASON_ASSOC_EXPIRE             = 4,
    WIFI_REASON_ASSOC_TOOMANY            = 5,
    WIFI_REASON_NOT_AUTHED               = 6,
    WIFI_REASON_NOT_ASSOCED              = 7,
    WIFI_REASON_ASSOC_LEAVE              = 8,
    WIFI_REASON_ASSOC_NOT_AUTHED         = 9,
    WIFI_REASON_DISASSOC_PWRCAP_BAD      = 10,
    WIFI_REASON_DISASSOC_SUPCHAN_BAD     = 11,
    WIFI_REASON_IE_INVALID               = 13,
    WIFI_REASON_MIC_FAILURE              = 14,
    WIFI_REASON_4WAY_HANDSHAKE_TIMEOUT   = 15,
    WIFI_REASON_GROUP_KEY_UPDATE_TIMEOUT = 16,
    WIFI_REASON_IE_IN_4WAY_DIFFERS       = 17,
    WIFI_REASON_GROUP_CIPHER_INVALID     = 18,
    WIFI_REASON_PAIRWISE_CIPHER_INVALID  = 19,
    WIFI_REASON_AKMP_INVALID             = 20,
    WIFI_REASON_UNSUPP_RSN_IE_VERSION    = 21,
    WIFI_REASON_INVALID_RSN_IE_CAP       = 22,
    WIFI_REASON_802_1X_AUTH_FAILED       = 23,
    WIFI_REASON_CIPHER_SUITE_REJECTED    = 24,
    WIFI_REASON_BEACON_TIMEOUT           = 200,
    WIFI_REASON_NO_AP_FOUND              = 201,
    WIFI_REASON_AUTH_FAIL                = 202,
    WIFI_REASON_ASSOC_FAIL               = 203,
    WIFI_REASON_HANDSHAKE_TIMEOUT        = 204,
    WIFI_REASON_CONNECTION_FAIL          = 205,
} wifi_err_reason_t;

注：如果出现使用信道 13 & 隐藏 SSID 的情况下出现 Wi-Fi 连接失败的问题，可参考以下代码修改 policy：
wifi_country_t wifi_country = { 0 };
ESP_ERROR_CHECK(esp_wifi_get_country(&wifi_country) );
wifi_country.policy = WIFI_COUNTRY_POLICY_MANUAL;
ESP_ERROR_CHECK(esp_wifi_set_country(&wifi_country) );