hfp ag初始化失败问题求助

[jinkai]

esf-idf版本：V5.0.2
开发板型号：ESP32-WROOM-32UE、ESP32-WROVER-E
问题描述：结合蓝牙扫描与hfp ag例程时，使用esp32开发板作为hfp ag端，在ESP32-WROVER-E运行正常，但是程序烧到ESP32-WROOM-32UE后，发现ESP32-WROOM-32UE扫描到蓝牙耳机后，蓝牙耳机无法连接开发板。
连接耳机代码如下：

Code: Select all

static void bt_app_gap_cb(esp_bt_gap_cb_event_t event, esp_bt_gap_cb_param_t *param)
{
    switch (event)
    {
        /* when device discovered a result, this event comes */
        case ESP_BT_GAP_DISC_RES_EVT:
        {
            /* 扫描到 bt 设备， 开始检查设备是否是希望连接的 bt */
            if (bt_hfp_ag_status == BT_STATUS_DISCOVERING)
            {
                filter_inquiry_scan_result(param);
            }
            break;
        }
        /* when discovery state changed, this event comes */
        /* 扫描状态变化 */
        case ESP_BT_GAP_DISC_STATE_CHANGED_EVT:
        {
            /* 扫描变为停止状态 */
            if (param->disc_st_chg.state == ESP_BT_GAP_DISCOVERY_STOPPED)
            {
                /* 停止扫描，并且找到期望设备，开始连接 */
                if (bt_hfp_ag_status == BT_STATUS_DISCOVERED)
                {
                    ESP_LOGI(BT_SCAN_TAG, "Device discovery stopped.");
                    ESP_LOGI(BT_SCAN_TAG, "hfp hf connecting to peer: %s", BtHfpAg.s_peer_bdname);
                    
                    bt_hfp_ag_status = BT_STATUS_CONNECTING;
                    /* connect source to peer device specificed by Bluetooth Device Address */
                    esp_hf_ag_slc_connect(BtHfpAg.s_peer_bda);
                }
                /* 停止扫描，但仍然希望扫描(自定义的 bt_hfp_ag_status 处于扫描状态)，重启扫描 */
                else if (bt_hfp_ag_status == BT_STATUS_DISCOVERING)
                {
                    // /* not discovered, continue to discover */
                    ESP_LOGW(BT_SCAN_TAG, "Device discovery failed, continue to discover...");
                    esp_bt_gap_start_discovery(ESP_BT_INQ_MODE_GENERAL_INQUIRY, 10, 0);
                }
            }
            else if (param->disc_st_chg.state == ESP_BT_GAP_DISCOVERY_STARTED)
            {
                ESP_LOGI(BT_SCAN_TAG, "Discovery started.");
            }
            break;
        }
        /* when authentication completed, this event comes */
        case ESP_BT_GAP_AUTH_CMPL_EVT:
        {
            if (param->auth_cmpl.stat == ESP_BT_STATUS_SUCCESS)
            {
                ESP_LOGI(BT_SCAN_TAG, "authentication success: %s", param->auth_cmpl.device_name);
                esp_log_buffer_hex(BT_SCAN_TAG, param->auth_cmpl.bda, ESP_BD_ADDR_LEN);
            }
            else
            {
                ESP_LOGE(BT_SCAN_TAG, "authentication failed, status: %d", param->auth_cmpl.stat);
            }
            break;
        }
        /* when Legacy Pairing pin code requested, this event comes */
        case ESP_BT_GAP_PIN_REQ_EVT:
        {
            ESP_LOGI(BT_SCAN_TAG, "ESP_BT_GAP_PIN_REQ_EVT min_16_digit: %d", param->pin_req.min_16_digit);
            if (param->pin_req.min_16_digit)
            {
                ESP_LOGI(BT_SCAN_TAG, "Input pin code: 0000 0000 0000 0000");
                esp_bt_pin_code_t pin_code = {0};
                esp_bt_gap_pin_reply(param->pin_req.bda, true, 16, pin_code);
            }
            else
            {
                ESP_LOGI(BT_SCAN_TAG, "Input pin code: 1234");
                esp_bt_pin_code_t pin_code;
                pin_code[0] = '1';
                pin_code[1] = '2';
                pin_code[2] = '3';
                pin_code[3] = '4';
                esp_bt_gap_pin_reply(param->pin_req.bda, true, 4, pin_code);
            }
            break;
        }
        /* when GAP mode changed, this event comes */
        case ESP_BT_GAP_MODE_CHG_EVT:
        {
            ESP_LOGI(BT_SCAN_TAG, "ESP_BT_GAP_MODE_CHG_EVT mode: %d", param->mode_chg.mode);
            break;
        }
        /* other */
        default:
        {
            ESP_LOGI(BT_SCAN_TAG, "event: %d", event);
            break;
        }
    }

    return;
}

log如下：

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I (900) MY_BT_SCAN: Starting device discovery...
I (2587) MY_BT_SCAN: event: 10
E (2587) BT_BTC: btc_hf_cb_handler: Invalid index 56523
I (2587) MY_BT_SCAN: event: 10
I (2597) MY_BT_SCAN: event: 10
I (2597) MY_BT_SCAN: Discovery started.
I (2877) MY_BT_SCAN: Scanned device: 38:00:25:0c:11:37
I (3097) MY_BT_SCAN: Scanned device: 38:00:25:0c:11:37
filter_inquiry_scan_result(389) device address d8:aa:59:56:c3:6a, name OPPO Enco Free2i

I (20237) MY_BT_SCAN: Found a target device, address d8:aa:59:56:c3:6a, name OPPO Enco Free2i
I (20247) MY_BT_SCAN: Cancel device discovery ...
I (20257) MY_BT_SCAN: Device discovery stopped.
I (20257) MY_BT_SCAN: hfp hf connecting to peer: OPPO Enco Free2i
W (20267) BT_BTIF: CHECK_HF_INIT: connect_init: HF AG not initialized

主要是出现“BT_BTIF: CHECK_HF_INIT: connect_init: HF AG not initialized”这个log，之前全部运行正常，但是程序烧到ESP32-WROOM-32UE后就出现这个log，然后就无法连接了，希望各位帮忙。

[ESP_Boblane]

“BT_BTIF: CHECK_HF_INIT: connect_init: HF AG not initialized”这个log表明 HFP AG 在使用前没有初始化，请先调用 esp_hf_ag_init 进行初始化后，再去发起后续的连接。