ble autoconnect is connected and disconnected repeatedly

[hyu7000]

device : esp32s3
master device : S21, android
source : example_ble_sec_gatts_demo

edited code :

Code: Select all

static esp_ble_adv_params_t heart_rate_adv_params = {
    .adv_int_min        = 0x100,
    .adv_int_max        = 0x100,
    .adv_type           = ADV_TYPE_IND,
    .own_addr_type      =BLE_ADDR_TYPE_PUBLIC, // edit_1
    .channel_map        = ADV_CHNL_ALL,
    .adv_filter_policy = ADV_FILTER_ALLOW_SCAN_ANY_CON_ANY,
};

own_addr_type is changed to public for autoconnect

Code: Select all

case ESP_GATTS_CONNECT_EVT:
            ESP_LOGI(GATTS_TABLE_TAG, "ESP_GATTS_CONNECT_EVT");
            /* start security connect with peer device when receive the connect event sent by the master */
            esp_ble_set_encryption(param->connect.remote_bda, ESP_BLE_SEC_ENCRYPT); //edit_2
            break;
          

Code: Select all

esp_ble_auth_req_t auth_req = ESP_LE_AUTH_REQ_SC_BOND; //edit_3

i thought i'm ready to autoconnect between my devices.

when i connect to esp32s3 at first time, it's successly connected.

then, i turn esp32s3 off and turn on to connect after disconnected.

at this time, esp32s3 is repeatedly between connected and disconnected.

terminal show me below log

I (4061) SEC_GATTS_DEMO: 7a 31 08 03 9d 36
W (4131) BT_HCI: hcif disc complete: hdl 0x1, rsn 0x3d
I (4131) SEC_GATTS_DEMO: ESP_GATTS_DISCONNECT_EVT, disconnect reason 0x3d
I (4141) SEC_GATTS_DEMO: advertising start success
I (4571) SEC_GATTS_DEMO: ESP_GATTS_CONNECT_EVT
I (4871) SEC_GATTS_DEMO: remote BD_ADDR: 7a3108039d36
I (4871) SEC_GATTS_DEMO: address type = 1
I (4871) SEC_GATTS_DEMO: pair status = success
I (4871) SEC_GATTS_DEMO: auth mode = ESP_LE_AUTH_REQ_SC_BOND
I (4881) SEC_GATTS_DEMO: Bonded devices number : 1

I (4881) SEC_GATTS_DEMO: Bonded devices list : 1

I (4891) SEC_GATTS_DEMO: 7a 31 08 03 9d 36
W (4961) BT_HCI: hcif disc complete: hdl 0x1, rsn 0x3d
I (4961) SEC_GATTS_DEMO: ESP_GATTS_DISCONNECT_EVT, disconnect reason 0x3d
I (4961) SEC_GATTS_DEMO: advertising start success
I (5251) SEC_GATTS_DEMO: ESP_GATTS_CONNECT_EVT
I (5501) SEC_GATTS_DEMO: remote BD_ADDR: 7a3108039d36
I (5501) SEC_GATTS_DEMO: address type = 1
I (5501) SEC_GATTS_DEMO: pair status = success
I (5501) SEC_GATTS_DEMO: auth mode = ESP_LE_AUTH_REQ_SC_BOND
I (5511) SEC_GATTS_DEMO: Bonded devices number : 1

I (5521) SEC_GATTS_DEMO: Bonded devices list : 1

I (5521) SEC_GATTS_DEMO: 7a 31 08 03 9d 36
W (5591) BT_HCI: hcif disc complete: hdl 0x1, rsn 0x3d
I (5591) SEC_GATTS_DEMO: ESP_GATTS_DISCONNECT_EVT, disconnect reason 0x3d
I (5601) SEC_GATTS_DEMO: advertising start success
I (6031) SEC_GATTS_DEMO: ESP_GATTS_CONNECT_EVT
I (6281) SEC_GATTS_DEMO: remote BD_ADDR: 7a3108039d36
I (6281) SEC_GATTS_DEMO: address type = 1
I (6281) SEC_GATTS_DEMO: pair status = success
I (6281) SEC_GATTS_DEMO: auth mode = ESP_LE_AUTH_REQ_SC_BOND
I (6291) SEC_GATTS_DEMO: Bonded devices number : 1

I (6301) SEC_GATTS_DEMO: Bonded devices list : 1

I (6301) SEC_GATTS_DEMO: 7a 31 08 03 9d 36
W (6371) BT_HCI: hcif disc complete: hdl 0x1, rsn 0x3d
I (6371) SEC_GATTS_DEMO: ESP_GATTS_DISCONNECT_EVT, disconnect reason 0x3d
I (6381) SEC_GATTS_DEMO: advertising start success
I (6811) SEC_GATTS_DEMO: ESP_GATTS_CONNECT_EVT
I (7161) SEC_GATTS_DEMO: remote BD_ADDR: 7a3108039d36
I (7161) SEC_GATTS_DEMO: address type = 1
I (7161) SEC_GATTS_DEMO: pair status = success
I (7161) SEC_GATTS_DEMO: auth mode = ESP_LE_AUTH_REQ_SC_BOND
I (7171) SEC_GATTS_DEMO: Bonded devices number : 1

I (7171) SEC_GATTS_DEMO: Bonded devices list : 1

I (7181) SEC_GATTS_DEMO: 7a 31 08 03 9d 36

could you let me know what it's reason?

thank you in advance