nRf52832 device name change by using mobile app

[Nordic_partv_]

Hi,

I need to change the Device name in nRf52832. Mobile app sends the request to nRf52832. 

Thanks.

static void ChangeDeviceName(void)
{
        uint32_t err_code;
        ble_gap_conn_sec_mode_t sec_mode;
        ble_gap_conn_params_t gap_conn_params;
        BLE_GAP_CONN_SEC_MODE_SET_OPEN(&sec_mode);
        static uint8_t index = 0;

        advertising_stop();

        //sprintf(Devicename3, "HUAWEI_DEVICE %d", index);
        index++;
        err_code = sd_ble_gap_device_name_set(&sec_mode,
                                              (uint8_t *) Devicename3,
                                              strlen(Devicename3));

        NRF_LOG_INFO("device name error %d", err_code);
        APP_ERROR_CHECK(err_code);
}

[Amanda Hsieh]

Hi, 

After changing the GAP device name with sd_ble_gap_device_name_set(), it should call ble_advertising_advdata_update() with the same 'srdata' and 'advata' arguments that were used in advertising_init(). This process will update your adv. payload with the new GAP device name.

 

Regards,

Amanda H.

[Nordic_partv_]

static void ChangeDeviceName(void)
{
        uint32_t err_code;
        ble_gap_conn_sec_mode_t sec_mode;
        ble_gap_conn_params_t gap_conn_params;
        BLE_GAP_CONN_SEC_MODE_SET_OPEN(&sec_mode);
        ble_advdata_manuf_data_t    manuf_data;
        new_advdata.p_manuf_specific_data = &manuf_data;
        
        static uint8_t index = 0;
        static uint8_t payload_index = 0;

        advertising_stop();

        index++;
        err_code = sd_ble_gap_device_name_set(&sec_mode,
                                              (uint8_t *) Devicename2,
                                              strlen(Devicename2));

        NRF_LOG_INFO("device name error %d", err_code);
        APP_ERROR_CHECK(err_code);
        
        manuf_data.company_identifier = APP_COMPANY_IDENTIFIER;

        manuf_data.data.p_data = manufacturing_data_payload_list + payload_index;
        manuf_data.data.size = PAYLOAD_SIZE;
        
        err_code = ble_advertising_advdata_update(&m_advertising, &new_advdata, NULL);
        APP_ERROR_CHECK(err_code);  
        if(payload_index == TOP_INDEX)
        {
            payload_index = 0;
        }
        else
        {
            payload_index++;
        }
}

Is it Ok.  

[Nordic_partv_]

void bluetooth_update_name(uint8_t* name) {
	ret_code_t err_code;
	ble_gap_conn_sec_mode_t sec_mode;

	BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(&sec_mode);

        err_code = sd_ble_gap_adv_stop(m_advertising.adv_handle);
        
        
        ble_advertising_restart_without_whitelist(&m_advertising);
	

		err_code = sd_ble_gap_device_name_set(&sec_mode, (const uint8_t *)Devicename2, strlen(Devicename2));
		APP_ERROR_CHECK(err_code);

	err_code = ble_advdata_encode(&adv_init.advdata, m_advertising.enc_advdata, &m_advertising.adv_data.adv_data.len);
	//VERIFY_SUCCESS(err_code);

	if (m_advertising.adv_modes_config.ble_adv_extended_enabled == true)
	{
    #ifdef BLE_GAP_ADV_SET_DATA_SIZE_EXTENDED_CONNECTABLE_MAX_SUPPORTED
		m_advertising.adv_data.scan_rsp_data.len = BLE_GAP_ADV_SET_DATA_SIZE_EXTENDED_CONNECTABLE_MAX_SUPPORTED;
    #else
		m_advertising.adv_data.scan_rsp_data.len = BLE_GAP_ADV_SET_DATA_SIZE_MAX;
    #endif // BLE_GAP_ADV_SET_DATA_SIZE_EXTENDED_CONNECTABLE_MAX_SUPPORTED
	}
	else
	{
		m_advertising.adv_data.scan_rsp_data.len = BLE_GAP_ADV_SET_DATA_SIZE_MAX;
	}

	err_code = ble_advdata_encode(&adv_init.srdata,
		m_advertising.adv_data.scan_rsp_data.p_data,
		&m_advertising.adv_data.scan_rsp_data.len);

	sd_ble_gap_adv_set_configure(&m_advertising.adv_handle,
		m_advertising.p_adv_data,
		NULL);
        ble_advertising_restart_without_whitelist(&m_advertising);
                 
}

Check this function also. Thanks. 

[Nordic_partv_]

Which one (function) is better or correct.

[Amanda Hsieh]

Do you see any issue with your functions?

-Amanda H. 

[Nordic_partv_]

Yes. Device name is not changing.