buttonless dfu ble. error in uploading file.

[prashanthk]

nrf52810 used and sdk 15.3 used . i able to run my program without error and i even able connect my ble dfu. but i cant upload my zip file and i cant bond with nordic dfu. its showing invalid object. even i cant bond with device

[Einar Thorsrud]

Hi,

A typical reason for getting invalid object error is that the DFU image was not signed with the correct key. Can you confirm that the bootloader was built with your public key, and that the DFU image was signed with the corresponding private key?

If the above is not the issue, can you elaborate on the issue? Also, can you upload the log from the DFU master?

[prashanthk]

sir sorry... where i can get log. im new to this field

[prashanthk]

this is the error n computer i get while trying to upload a file. showing gatt error

[Einar Thorsrud]

Hi,

I see from this log that there are several disconnects, and a reset due to inactivity. What I notice most though is this part:

<debug> nrf_dfu_ble: Received BLE_GATTS_EVT_EXCHANGE_MTU_REQUEST (request: 517, reply: 247).
<debug> nrf_dfu_ble: Advertising...
<debug> app: timer_stop (0x20002B14)
<debug> app: timer_fire (0x20002B14)
<info> app: Inactivity timeout.

So from the nRF it loos looks like the central disconnects. This is not the same issue as the "invalid object" discussion earlier, as things stopped earlier.

What changes have you made since the beginning of this case when the issue was "invalid object"?

Which DFU master are you testing with now? nRF Connect for Android? Can you test with another DFU central, for instance nRF Connect for Desktop with the BLE app?

[prashanthk]

sir, while i try to run my buttonless ble dfu example im getting failed to write memory. can u solve for me

[Einar Thorsrud]

Hi,

Where do you see this error? Please elaborate. Can you share your code so that I can test on my side (assuming it runs on a DK)?

[prashanthk]

/**
 * Copyright (c) 2014 - 2017, Nordic Semiconductor ASA
 * 
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form, except as embedded into a Nordic
 *    Semiconductor ASA integrated circuit in a product or a software update for
 *    such product, must reproduce the above copyright notice, this list of
 *    conditions and the following disclaimer in the documentation and/or other
 *    materials provided with the distribution.
 * 
 * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
 *    contributors may be used to endorse or promote products derived from this
 *    software without specific prior written permission.
 * 
 * 4. This software, with or without modification, must only be used with a
 *    Nordic Semiconductor ASA integrated circuit.
 * 
 * 5. Any software provided in binary form under this license must not be reverse
 *    engineered, decompiled, modified and/or disassembled.
 * 
 * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 */
/** @example examples/ble_peripheral/ble_app_buttonless_dfu
 *
 * @brief Secure DFU Buttonless Service Application main file.
 *
 * This file contains the source code for a sample application using the proprietary
 * Secure DFU Buttonless Service. This is a template application that can be modified
 * to your needs. To extend the functionality of this application, please find
 * locations where the comment "// YOUR_JOB:" is present and read the comments.
 */

#include <stdbool.h>
#include <stdint.h>
#include <string.h>

//#include "nrf_dfu_svci.h"
#include "nrf_svci_async_function.h"
#include "nrf_svci_async_handler.h"

#include "nordic_common.h"
#include "nrf.h"
#include "app_error.h"
#include "ble.h"
#include "ble_hci.h"
#include "ble_srv_common.h"
#include "ble_advdata.h"
#include "ble_advertising.h"
#include "ble_conn_params.h"
#include "nrf_sdh.h"
#include "nrf_sdh_soc.h"
#include "nrf_sdh_ble.h"
#include "app_timer.h"
#include "peer_manager.h"
#include "bsp_btn_ble.h"
#include "ble_hci.h"
#include "ble_advdata.h"
#include "ble_advertising.h"
#include "ble_conn_state.h"
#include "ble_dfu.h"
#include "nrf_ble_gatt.h"
#include "fds.h"
#include "nrf_pwr_mgmt.h"
#include "nrf_drv_clock.h"

#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"


#define APP_FEATURE_NOT_SUPPORTED       BLE_GATT_STATUS_ATTERR_APP_BEGIN + 2        /**< Reply when unsupported features are requested. */

#define DEVICE_NAME                     "Nordic_Buttonless"                         /**< Name of device. Will be included in the advertising data. */
#define MANUFACTURER_NAME               "NordicSemiconductor"                       /**< Manufacturer. Will be passed to Device Information Service. */
#define APP_ADV_INTERVAL                300                                         /**< The advertising interval (in units of 0.625 ms. This value corresponds to 187.5 ms). */
#define APP_ADV_TIMEOUT_IN_SECONDS      180                                         /**< The advertising timeout in units of seconds. */

#define APP_BLE_OBSERVER_PRIO           3                                           /**< Application's BLE observer priority. You shouldn't need to modify this value. */
#define APP_BLE_CONN_CFG_TAG            1                                           /**< A tag identifying the SoftDevice BLE configuration. */

#define MIN_CONN_INTERVAL               MSEC_TO_UNITS(100, UNIT_1_25_MS)            /**< Minimum acceptable connection interval (0.1 seconds). */
#define MAX_CONN_INTERVAL               MSEC_TO_UNITS(200, UNIT_1_25_MS)            /**< Maximum acceptable connection interval (0.2 second). */
#define SLAVE_LATENCY                   0                                           /**< Slave latency. */
#define CONN_SUP_TIMEOUT                MSEC_TO_UNITS(4000, UNIT_10_MS)             /**< Connection supervisory timeout (4 seconds). */

#define FIRST_CONN_PARAMS_UPDATE_DELAY  APP_TIMER_TICKS(5000)                       /**< Time from initiating event (connect or start of notification) to first time sd_ble_gap_conn_param_update is called (5 seconds). */
#define NEXT_CONN_PARAMS_UPDATE_DELAY   APP_TIMER_TICKS(30000)                      /**< Time between each call to sd_ble_gap_conn_param_update after the first call (30 seconds). */
#define MAX_CONN_PARAMS_UPDATE_COUNT    3                                           /**< Number of attempts before giving up the connection parameter negotiation. */

#define SEC_PARAM_BOND                  1                                           /**< Perform bonding. */
#define SEC_PARAM_MITM                  0                                           /**< Man In The Middle protection not required. */
#define SEC_PARAM_LESC                  0                                           /**< LE Secure Connections not enabled. */
#define SEC_PARAM_KEYPRESS              0                                           /**< Keypress notifications not enabled. */
#define SEC_PARAM_IO_CAPABILITIES       BLE_GAP_IO_CAPS_NONE                        /**< No I/O capabilities. */
#define SEC_PARAM_OOB                   0                                           /**< Out Of Band data not available. */
#define SEC_PARAM_MIN_KEY_SIZE          7                                           /**< Minimum encryption key size. */
#define SEC_PARAM_MAX_KEY_SIZE          16                                          /**< Maximum encryption key size. */

#define DEAD_BEEF                       0xDEADBEEF                                  /**< Value used as error code on stack dump, can be used to identify stack location on stack unwind. */


NRF_BLE_GATT_DEF(m_gatt);                                                           /**< GATT module instance. */
BLE_ADVERTISING_DEF(m_advertising);                                                 /**< Advertising module instance. */

static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID;                            /**< Handle of the current connection. */
static void advertising_start(bool erase_bonds);                                    /**< Forward declaration of advertising start function */


/**@brief Handler for shutdown preparation.
 *
 * @details During shutdown procedures, this function will be called at a 1 second interval
 *          untill the function returns true. When the function returns true, it means that the
 *          app is ready to reset to DFU mode.
 *
 * @param[in]   event   Power manager event.
 *
 * @retval  True if shutdown is allowed by this power manager handler, otherwise false.
 */
static bool app_shutdown_handler(nrf_pwr_mgmt_evt_t event)
{
    switch (event)
    {
        case NRF_PWR_MGMT_EVT_PREPARE_DFU:
            NRF_LOG_INFO("Power management wants to reset to DFU mode.");
            // YOUR_JOB: Get ready to reset into DFU mode
            //
            // If you aren't finished with any ongoing tasks, return "false" to
            // signal to the system that reset is impossible at this stage.
            //
            // Here is an example using a variable to delay resetting the device.
            //
            // if (!m_ready_for_reset)
            // {
            //      return false;
            // }
            // else
            //{
            //
            //    // Device ready to enter
            //    uint32_t err_code;
            //    err_code = sd_softdevice_disable();
            //    APP_ERROR_CHECK(err_code);
            //    err_code = app_timer_stop_all();
            //    APP_ERROR_CHECK(err_code);
            //}
            break;

        default:
            // YOUR_JOB: Implement any of the other events available from the power management module:
            //      -NRF_PWR_MGMT_EVT_PREPARE_SYSOFF
            //      -NRF_PWR_MGMT_EVT_PREPARE_WAKEUP
            //      -NRF_PWR_MGMT_EVT_PREPARE_RESET
            return true;
    }

    NRF_LOG_INFO("Power management allowed to reset to DFU mode.");
    return true;
}

//lint -esym(528, m_app_shutdown_handler)
/**@brief Register application shutdown handler with priority 0.
 */
NRF_PWR_MGMT_HANDLER_REGISTER(app_shutdown_handler, 0);


// YOUR_JOB: Use UUIDs for service(s) used in your application.
static ble_uuid_t m_adv_uuids[] = {{BLE_UUID_DEVICE_INFORMATION_SERVICE, BLE_UUID_TYPE_BLE}};


// YOUR_JOB: Update this code if you want to do anything given a DFU event (optional).
/**@brief Function for handling dfu events from the Buttonless Secure DFU service
 *
 * @param[in]   event   Event from the Buttonless Secure DFU service.
 */
static void ble_dfu_evt_handler(ble_dfu_buttonless_evt_type_t event)
{
    switch (event)
    {
        case BLE_DFU_EVT_BOOTLOADER_ENTER_PREPARE:
            NRF_LOG_INFO("Device is preparing to enter bootloader mode.");
            // YOUR_JOB: Disconnect all bonded devices that currently are connected.
            //           This is required to receive a service changed indication
            //           on bootup after a successful (or aborted) Device Firmware Update.
            break;

        case BLE_DFU_EVT_BOOTLOADER_ENTER:
            // YOUR_JOB: Write app-specific unwritten data to FLASH, control finalization of this
            //           by delaying reset by reporting false in app_shutdown_handler
            NRF_LOG_INFO("Device will enter bootloader mode.");
            break;

        case BLE_DFU_EVT_BOOTLOADER_ENTER_FAILED:
            NRF_LOG_ERROR("Request to enter bootloader mode failed asynchroneously.");
            // YOUR_JOB: Take corrective measures to resolve the issue
            //           like calling APP_ERROR_CHECK to reset the device.
            break;

        case BLE_DFU_EVT_RESPONSE_SEND_ERROR:
            NRF_LOG_ERROR("Request to send a response to client failed.");
            // YOUR_JOB: Take corrective measures to resolve the issue
            //           like calling APP_ERROR_CHECK to reset the device.
            APP_ERROR_CHECK(false);
            break;

        default:
            NRF_LOG_ERROR("Unknown event from ble_dfu_buttonless.");
            break;
    }
}


/**@brief Callback function for asserts in the SoftDevice.
 *
 * @details This function will be called in case of an assert in the SoftDevice.
 *
 * @warning This handler is an example only and does not fit a final product. You need to analyze
 *          how your product is supposed to react in case of Assert.
 * @warning On assert from the SoftDevice, the system can only recover on reset.
 *
 * @param[in] line_num   Line number of the failing ASSERT call.
 * @param[in] file_name  File name of the failing ASSERT call.
 */
void assert_nrf_callback(uint16_t line_num, const uint8_t * p_file_name)
{
    app_error_handler(DEAD_BEEF, line_num, p_file_name);
}


/**@brief Function for handling Peer Manager events.
 *
 * @param[in] p_evt  Peer Manager event.
 */
static void pm_evt_handler(pm_evt_t const * p_evt)
{
    ret_code_t err_code;

    switch (p_evt->evt_id)
    {
        case PM_EVT_BONDED_PEER_CONNECTED:
        {
            NRF_LOG_INFO("Connected to a previously bonded device.");
        } break;

        case PM_EVT_CONN_SEC_SUCCEEDED:
        {
            NRF_LOG_INFO("Connection secured: role: %d, conn_handle: 0x%x, procedure: %d.",
                         ble_conn_state_role(p_evt->conn_handle),
                         p_evt->conn_handle,
                         p_evt->params.conn_sec_succeeded.procedure);
        } break;

        case PM_EVT_CONN_SEC_FAILED:
        {
            /* Often, when securing fails, it shouldn't be restarted, for security reasons.
             * Other times, it can be restarted directly.
             * Sometimes it can be restarted, but only after changing some Security Parameters.
             * Sometimes, it cannot be restarted until the link is disconnected and reconnected.
             * Sometimes it is impossible, to secure the link, or the peer device does not support it.
             * How to handle this error is highly application dependent. */
        } break;

        case PM_EVT_CONN_SEC_CONFIG_REQ:
        {
            // Reject pairing request from an already bonded peer.
            pm_conn_sec_config_t conn_sec_config = {.allow_repairing = false};
            pm_conn_sec_config_reply(p_evt->conn_handle, &conn_sec_config);
        } break;

        case PM_EVT_STORAGE_FULL:
        {
            // Run garbage collection on the flash.
            err_code = fds_gc();
            if (err_code == FDS_ERR_BUSY || err_code == FDS_ERR_NO_SPACE_IN_QUEUES)
            {
                // Retry.
            }
            else
            {
                APP_ERROR_CHECK(err_code);
            }
        } break;

        case PM_EVT_PEERS_DELETE_SUCCEEDED:
        {
            advertising_start(false);
        } break;

        case PM_EVT_LOCAL_DB_CACHE_APPLY_FAILED:
        {
            // The local database has likely changed, send service changed indications.
            pm_local_database_has_changed();
        } break;

        case PM_EVT_PEER_DATA_UPDATE_FAILED:
        {
            // Assert.
            APP_ERROR_CHECK(p_evt->params.peer_data_update_failed.error);
        } break;

        case PM_EVT_PEER_DELETE_FAILED:
        {
            // Assert.
            APP_ERROR_CHECK(p_evt->params.peer_delete_failed.error);
        } break;

        case PM_EVT_PEERS_DELETE_FAILED:
        {
            // Assert.
            APP_ERROR_CHECK(p_evt->params.peers_delete_failed_evt.error);
        } break;

        case PM_EVT_ERROR_UNEXPECTED:
        {
            // Assert.
            APP_ERROR_CHECK(p_evt->params.error_unexpected.error);
        } break;

        case PM_EVT_CONN_SEC_START:
        case PM_EVT_PEER_DATA_UPDATE_SUCCEEDED:
        case PM_EVT_PEER_DELETE_SUCCEEDED:
        case PM_EVT_LOCAL_DB_CACHE_APPLIED:
        case PM_EVT_SERVICE_CHANGED_IND_SENT:
        case PM_EVT_SERVICE_CHANGED_IND_CONFIRMED:
        default:
            break;
    }
}


/**@brief Function for the Timer initialization.
 *
 * @details Initializes the timer module. This creates and starts application timers.
 */
static void timers_init(void)
{

    // Initialize timer module.
    uint32_t err_code = app_timer_init();
    APP_ERROR_CHECK(err_code);

    // Create timers.

    /* YOUR_JOB: Create any timers to be used by the application.
                 Below is an example of how to create a timer.
                 For every new timer needed, increase the value of the macro APP_TIMER_MAX_TIMERS by
                 one.
       uint32_t err_code;
       err_code = app_timer_create(&m_app_timer_id, APP_TIMER_MODE_REPEATED, timer_timeout_handler);
       APP_ERROR_CHECK(err_code); */
}


/**@brief Function for the GAP initialization.
 *
 * @details This function sets up all the necessary GAP (Generic Access Profile) parameters of the
 *          device including the device name, appearance, and the preferred connection parameters.
 */
static void gap_params_init(void)
{
    uint32_t                err_code;
    ble_gap_conn_params_t   gap_conn_params;
    ble_gap_conn_sec_mode_t sec_mode;

    BLE_GAP_CONN_SEC_MODE_SET_OPEN(&sec_mode);

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

    /* YOUR_JOB: Use an appearance value matching the application's use case.
       err_code = sd_ble_gap_appearance_set(BLE_APPEARANCE_);
       APP_ERROR_CHECK(err_code); */

    memset(&gap_conn_params, 0, sizeof(gap_conn_params));

    gap_conn_params.min_conn_interval = MIN_CONN_INTERVAL;
    gap_conn_params.max_conn_interval = MAX_CONN_INTERVAL;
    gap_conn_params.slave_latency     = SLAVE_LATENCY;
    gap_conn_params.conn_sup_timeout  = CONN_SUP_TIMEOUT;

    err_code = sd_ble_gap_ppcp_set(&gap_conn_params);
    APP_ERROR_CHECK(err_code);
}


/**@brief Function for handling the YYY Service events.
 * YOUR_JOB implement a service handler function depending on the event the service you are using can generate
 *
 * @details This function will be called for all YY Service events which are passed to
 *          the application.
 *
 * @param[in]   p_yy_service   YY Service structure.
 * @param[in]   p_evt          Event received from the YY Service.
 *
 *
   static void on_yys_evt(ble_yy_service_t     * p_yy_service,
                          ble_yy_service_evt_t * p_evt)
   {
    switch (p_evt->evt_type)
    {
        case BLE_YY_NAME_EVT_WRITE:
            APPL_LOG("[APPL]: charact written with value %s. ", p_evt->params.char_xx.value.p_str);
            break;

        default:
            // No implementation needed.
            break;
    }
   }*/


/**@brief Function for initializing services that will be used by the application.
 */
static void services_init(void)
{
    uint32_t err_code;
    ble_dfu_buttonless_init_t dfus_init =
    {
        .evt_handler = ble_dfu_evt_handler
    };

    // Initialize the async SVCI interface to bootloader.
    err_code = ble_dfu_buttonless_async_svci_init();
    APP_ERROR_CHECK(err_code);


    err_code = ble_dfu_buttonless_init(&dfus_init);
    APP_ERROR_CHECK(err_code);

    /* YOUR_JOB: Add code to initialize the services used by the application.
       uint32_t                           err_code;
       ble_xxs_init_t                     xxs_init;
       ble_yys_init_t                     yys_init;

       // Initialize XXX Service.
       memset(&xxs_init, 0, sizeof(xxs_init));

       xxs_init.evt_handler                = NULL;
       xxs_init.is_xxx_notify_supported    = true;
       xxs_init.ble_xx_initial_value.level = 100;

       err_code = ble_bas_init(&m_xxs, &xxs_init);
       APP_ERROR_CHECK(err_code);

       // Initialize YYY Service.
       memset(&yys_init, 0, sizeof(yys_init));
       yys_init.evt_handler                  = on_yys_evt;
       yys_init.ble_yy_initial_value.counter = 0;

       err_code = ble_yy_service_init(&yys_init, &yy_init);
       APP_ERROR_CHECK(err_code);
     */
}


/**@brief Function for handling the Connection Parameters Module.
 *
 * @details This function will be called for all events in the Connection Parameters Module which
 *          are passed to the application.
 *          @note All this function does is to disconnect. This could have been done by simply
 *                setting the disconnect_on_fail config parameter, but instead we use the event
 *                handler mechanism to demonstrate its use.
 *
 * @param[in] p_evt  Event received from the Connection Parameters Module.
 */
static void on_conn_params_evt(ble_conn_params_evt_t * p_evt)
{
    uint32_t err_code;

    if (p_evt->evt_type == BLE_CONN_PARAMS_EVT_FAILED)
    {
        err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_CONN_INTERVAL_UNACCEPTABLE);
        APP_ERROR_CHECK(err_code);
    }
}


/**@brief Function for handling a Connection Parameters error.
 *
 * @param[in] nrf_error  Error code containing information about what went wrong.
 */
static void conn_params_error_handler(uint32_t nrf_error)
{
    APP_ERROR_HANDLER(nrf_error);
}


/**@brief Function for initializing the Connection Parameters module.
 */
static void conn_params_init(void)
{
    uint32_t               err_code;
    ble_conn_params_init_t cp_init;

    memset(&cp_init, 0, sizeof(cp_init));

    cp_init.p_conn_params                  = NULL;
    cp_init.first_conn_params_update_delay = FIRST_CONN_PARAMS_UPDATE_DELAY;
    cp_init.next_conn_params_update_delay  = NEXT_CONN_PARAMS_UPDATE_DELAY;
    cp_init.max_conn_params_update_count   = MAX_CONN_PARAMS_UPDATE_COUNT;
    cp_init.start_on_notify_cccd_handle    = BLE_GATT_HANDLE_INVALID;
    cp_init.disconnect_on_fail             = false;
    cp_init.evt_handler                    = on_conn_params_evt;
    cp_init.error_handler                  = conn_params_error_handler;

    err_code = ble_conn_params_init(&cp_init);
    APP_ERROR_CHECK(err_code);
}


/**@brief Function for starting timers.
 */
static void application_timers_start(void)
{
    /* YOUR_JOB: Start your timers. below is an example of how to start a timer.
       uint32_t err_code;
       err_code = app_timer_start(m_app_timer_id, TIMER_INTERVAL, NULL);
       APP_ERROR_CHECK(err_code); */
}


/**@brief Function for putting the chip into sleep mode.
 *
 * @note This function will not return.
 */
static void sleep_mode_enter(void)
{
    uint32_t err_code = bsp_indication_set(BSP_INDICATE_IDLE);

    APP_ERROR_CHECK(err_code);

    // Prepare wakeup buttons.
    err_code = bsp_btn_ble_sleep_mode_prepare();
    APP_ERROR_CHECK(err_code);

    // Go to system-off mode (this function will not return; wakeup will cause a reset).
    err_code = sd_power_system_off();
    APP_ERROR_CHECK(err_code);
}


/**@brief Function for handling advertising events.
 *
 * @details This function will be called for advertising events which are passed to the application.
 *
 * @param[in] ble_adv_evt  Advertising event.
 */
static void on_adv_evt(ble_adv_evt_t ble_adv_evt)
{
    uint32_t err_code;

    switch (ble_adv_evt)
    {
        case BLE_ADV_EVT_FAST:
            err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING);
            APP_ERROR_CHECK(err_code);
            break;

        case BLE_ADV_EVT_IDLE:
            sleep_mode_enter();
            break;

        default:
            break;
    }
}


/**@brief Function for handling BLE events.
 *
 * @param[in]   p_ble_evt   Bluetooth stack event.
 * @param[in]   p_context   Unused.
 */
static void ble_evt_handler(ble_evt_t const * p_ble_evt, void * p_context)
{
    uint32_t err_code = NRF_SUCCESS;

    switch (p_ble_evt->header.evt_id)
    {
        case BLE_GAP_EVT_DISCONNECTED:
            // LED indication will be changed when advertising starts.
            break;

        case BLE_GAP_EVT_CONNECTED:
            err_code = bsp_indication_set(BSP_INDICATE_CONNECTED);
            APP_ERROR_CHECK(err_code);
            m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
            break;

#ifndef S140
        case BLE_GAP_EVT_PHY_UPDATE_REQUEST:
        {
            NRF_LOG_DEBUG("PHY update request.");
            ble_gap_phys_t const phys =
            {
                .rx_phys = BLE_GAP_PHY_AUTO,
                .tx_phys = BLE_GAP_PHY_AUTO,
            };
            err_code = sd_ble_gap_phy_update(p_ble_evt->evt.gap_evt.conn_handle, &phys);
            APP_ERROR_CHECK(err_code);
        } break;
#endif

        case BLE_GATTC_EVT_TIMEOUT:
            // Disconnect on GATT Client timeout event.
            NRF_LOG_DEBUG("GATT Client Timeout.");
            err_code = sd_ble_gap_disconnect(p_ble_evt->evt.gattc_evt.conn_handle,
                                             BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
            APP_ERROR_CHECK(err_code);
            break;

        case BLE_GATTS_EVT_TIMEOUT:
            // Disconnect on GATT Server timeout event.
            NRF_LOG_DEBUG("GATT Server Timeout.");
            err_code = sd_ble_gap_disconnect(p_ble_evt->evt.gatts_evt.conn_handle,
                                             BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
            APP_ERROR_CHECK(err_code);
            break;

        case BLE_EVT_USER_MEM_REQUEST:
            err_code = sd_ble_user_mem_reply(p_ble_evt->evt.gattc_evt.conn_handle, NULL);
            APP_ERROR_CHECK(err_code);
            break;

        case BLE_GATTS_EVT_RW_AUTHORIZE_REQUEST:
        {
            ble_gatts_evt_rw_authorize_request_t  req;
            ble_gatts_rw_authorize_reply_params_t auth_reply;

            req = p_ble_evt->evt.gatts_evt.params.authorize_request;

            if (req.type != BLE_GATTS_AUTHORIZE_TYPE_INVALID)
            {
                if ((req.request.write.op == BLE_GATTS_OP_PREP_WRITE_REQ)     ||
                    (req.request.write.op == BLE_GATTS_OP_EXEC_WRITE_REQ_NOW) ||
                    (req.request.write.op == BLE_GATTS_OP_EXEC_WRITE_REQ_CANCEL))
                {
                    if (req.type == BLE_GATTS_AUTHORIZE_TYPE_WRITE)
                    {
                        auth_reply.type = BLE_GATTS_AUTHORIZE_TYPE_WRITE;
                    }
                    else
                    {
                        auth_reply.type = BLE_GATTS_AUTHORIZE_TYPE_READ;
                    }
                    auth_reply.params.write.gatt_status = APP_FEATURE_NOT_SUPPORTED;
                    err_code = sd_ble_gatts_rw_authorize_reply(p_ble_evt->evt.gatts_evt.conn_handle,
                                                               &auth_reply);
                    APP_ERROR_CHECK(err_code);
                }
            }
        } break; // BLE_GATTS_EVT_RW_AUTHORIZE_REQUEST

        default:
            // No implementation needed.
            break;
    }
}


/**@brief Function for initializing the BLE stack.
 *
 * @details Initializes the SoftDevice and the BLE event interrupt.
 */
static void ble_stack_init(void)
{
    ret_code_t err_code;

    err_code = nrf_sdh_enable_request();
    APP_ERROR_CHECK(err_code);

    // Configure the BLE stack using the default settings.
    // Fetch the start address of the application RAM.
    uint32_t ram_start = 0;
    err_code = nrf_sdh_ble_default_cfg_set(APP_BLE_CONN_CFG_TAG, &ram_start);
    APP_ERROR_CHECK(err_code);

    // Enable BLE stack.
    err_code = nrf_sdh_ble_enable(&ram_start);
    APP_ERROR_CHECK(err_code);

    NRF_SDH_BLE_OBSERVER(m_ble_observer, APP_BLE_OBSERVER_PRIO, ble_evt_handler, NULL);
}


/**@brief Function for the Peer Manager initialization.
 */
static void peer_manager_init()
{
    ble_gap_sec_params_t sec_param;
    ret_code_t           err_code;

    err_code = pm_init();
    APP_ERROR_CHECK(err_code);

    memset(&sec_param, 0, sizeof(ble_gap_sec_params_t));

    // Security parameters to be used for all security procedures.
    sec_param.bond           = SEC_PARAM_BOND;
    sec_param.mitm           = SEC_PARAM_MITM;
    sec_param.lesc           = SEC_PARAM_LESC;
    sec_param.keypress       = SEC_PARAM_KEYPRESS;
    sec_param.io_caps        = SEC_PARAM_IO_CAPABILITIES;
    sec_param.oob            = SEC_PARAM_OOB;
    sec_param.min_key_size   = SEC_PARAM_MIN_KEY_SIZE;
    sec_param.max_key_size   = SEC_PARAM_MAX_KEY_SIZE;
    sec_param.kdist_own.enc  = 1;
    sec_param.kdist_own.id   = 1;
    sec_param.kdist_peer.enc = 1;
    sec_param.kdist_peer.id  = 1;

    err_code = pm_sec_params_set(&sec_param);
    APP_ERROR_CHECK(err_code);

    err_code = pm_register(pm_evt_handler);
    APP_ERROR_CHECK(err_code);
}


/** @brief Clear bonding information from persistent storage.
 */
static void delete_bonds(void)
{
    ret_code_t err_code;

    NRF_LOG_INFO("Erase bonds!");

    err_code = pm_peers_delete();
    APP_ERROR_CHECK(err_code);
}


/**@brief Function for handling events from the BSP module.
 *
 * @param[in]   event   Event generated when button is pressed.
 */
static void bsp_event_handler(bsp_event_t event)
{
    uint32_t err_code;

    switch (event)
    {
        case BSP_EVENT_SLEEP:
            sleep_mode_enter();
            break; // BSP_EVENT_SLEEP

        case BSP_EVENT_DISCONNECT:
            err_code = sd_ble_gap_disconnect(m_conn_handle,
                                             BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
            if (err_code != NRF_ERROR_INVALID_STATE)
            {
                APP_ERROR_CHECK(err_code);
            }
            break; // BSP_EVENT_DISCONNECT

        case BSP_EVENT_WHITELIST_OFF:
            if (m_conn_handle == BLE_CONN_HANDLE_INVALID)
            {
                err_code = ble_advertising_restart_without_whitelist(&m_advertising);
                if (err_code != NRF_ERROR_INVALID_STATE)
                {
                    APP_ERROR_CHECK(err_code);
                }
            }
            break; // BSP_EVENT_KEY_0

        default:
            break;
    }
}


/**@brief Function for initializing the Advertising functionality.
 */
static void advertising_init(void)
{
    uint32_t               err_code;
    ble_advertising_init_t init;

    memset(&init, 0, sizeof(init));

    init.advdata.name_type               = BLE_ADVDATA_FULL_NAME;
    init.advdata.include_appearance      = true;
    init.advdata.flags                   = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;
    init.advdata.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);
    init.advdata.uuids_complete.p_uuids  = m_adv_uuids;

    init.config.ble_adv_fast_enabled  = true;
    init.config.ble_adv_fast_interval = APP_ADV_INTERVAL;
    init.config.ble_adv_fast_timeout  = APP_ADV_TIMEOUT_IN_SECONDS;

    init.evt_handler = on_adv_evt;

    err_code = ble_advertising_init(&m_advertising, &init);
    APP_ERROR_CHECK(err_code);

    ble_advertising_conn_cfg_tag_set(&m_advertising, APP_BLE_CONN_CFG_TAG);
}


/**@brief Function for initializing buttons and leds.
 *
 * @param[out] p_erase_bonds  Will be true if the clear bonding button was pressed to wake the application up.
 */
static void buttons_leds_init(bool * p_erase_bonds)
{
    uint32_t err_code;
    bsp_event_t startup_event;

    err_code = bsp_init(BSP_INIT_LEDS | BSP_INIT_BUTTONS, bsp_event_handler);
    APP_ERROR_CHECK(err_code);

    err_code = bsp_btn_ble_init(NULL, &startup_event);
    APP_ERROR_CHECK(err_code);

    *p_erase_bonds = (startup_event == BSP_EVENT_CLEAR_BONDING_DATA);
}


/**@brief Function for the Power manager.
 */
static void log_init(void)
{
    uint32_t err_code = NRF_LOG_INIT(NULL);
    APP_ERROR_CHECK(err_code);

    NRF_LOG_DEFAULT_BACKENDS_INIT();
}


/**@brief   Function for initializing the GATT module.
 * @details The GATT module handles ATT_MTU and Data Length update procedures automatically.
 */
static void gatt_init(void)
{
    ret_code_t err_code = nrf_ble_gatt_init(&m_gatt, NULL);
    APP_ERROR_CHECK(err_code);
}


/**@brief Function for starting advertising.
 */
static void advertising_start(bool erase_bonds)
{
    if (erase_bonds == true)
    {
        delete_bonds();
        // Advertising is started by PM_EVT_PEERS_DELETE_SUCCEEDED event.
    }
    else
    {
        uint32_t err_code = ble_advertising_start(&m_advertising, BLE_ADV_MODE_FAST);
        APP_ERROR_CHECK(err_code);

        NRF_LOG_DEBUG("advertising is started");
    }
}

static void power_management_init(void)
{
    uint32_t err_code = nrf_pwr_mgmt_init();
    APP_ERROR_CHECK(err_code);
}

/**@brief Function for application main entry.
 */
int main(void)
{
    bool erase_bonds;

    // Initialize.
    log_init();

    timers_init();
    power_management_init();
    buttons_leds_init(&erase_bonds);
    ble_stack_init();
    peer_manager_init();
    gap_params_init();
    gatt_init();
    advertising_init();
    services_init();
    conn_params_init();

    NRF_LOG_INFO("Application started\n");

    // Start execution.
    application_timers_start();
    advertising_start(erase_bonds);

    // Enter main loop.
    for (;;)
    {
        if (NRF_LOG_PROCESS() == false)
        {
            nrf_pwr_mgmt_run();
        }
    }
}

buttonless ble dfu code. using ses as compiler and sdk 15.2 sdk nrf52810.

[prashanthk]

Fullscreen Log error.txt Download

nRF Connect, 2020-12-24
Nordic_Buttonless (E0:6E:0D:23:1D:8D)
I	14:15:34.397	[Server] Server started
V	14:15:34.398	[Server] Creating services...
D	14:15:34.403	[Server callback] Connection state changed with status: 0 and new state: CONNECTED (2)
I	14:15:34.403	[Server] Device with address E0:6E:0D:23:1D:8D connected
D	14:15:34.404	[Server callback] Service 0000180d-0000-1000-8000-00805f9b34fb added with status: 0
D	14:15:34.404	server.addService(0000aaa0-0000-1000-8000-aabbccddeeff)
D	14:15:34.410	[Server callback] Service 0000aaa0-0000-1000-8000-aabbccddeeff added with status: 0
D	14:15:34.410	server.addService(0000181c-0000-1000-8000-00805f9b34fb)
D	14:15:34.436	[Server callback] Service 0000181c-0000-1000-8000-00805f9b34fb added with status: 0
I	14:15:34.436	[Server] Database changed
V	14:15:34.454	Heart Rate (0x180D)
- Heart Rate Measurement [N] (0x2A37)
   Client Characteristic Configuration (0x2902)
- Body Sensor Location [R] (0x2A38)
- Heart Rate Control Point [W] (0x2A39)
Unknown Service (0000aaa0-0000-1000-8000-aabbccddeeff)
- Unknown Characteristic [N R] (0000aaa1-0000-1000-8000-aabbccddeeff)
   Client Characteristic Configuration (0x2902)
   Unknown Descriptor (0000aab0-0000-1000-8000-aabbccddeeff)
   Characteristic User Description (0x2901)
   Characteristic Presentation Format (0x2904)
- Unknown Characteristic [I W WNR] (0000aaa2-0000-1000-8000-aabbccddeeff)
   Client Characteristic Configuration (0x2902)
User Data (0x181C)
- First Name [R W] (0x2A8A)
- Last Name [R W] (0x2A90)
- Gender [R W] (0x2A8C)
V	14:15:34.959	Connecting to E0:6E:0D:23:1D:8D...
D	14:15:34.959	gatt = device.connectGatt(autoConnect = false, TRANSPORT_LE, opportunistic = true, preferred PHY = LE 1M) (hidden)
D	14:15:34.966	[Callback] Connection state changed with status: 0 and new state: CONNECTED (2)
I	14:15:34.966	Connected to E0:6E:0D:23:1D:8D
D	14:15:34.967	wait(1600ms)
V	14:15:36.570	Discovering services...
D	14:15:36.570	gatt.discoverServices()
D	14:15:36.588	[Callback] Services discovered with status: 0
I	14:15:36.588	Services discovered
V	14:15:36.605	Generic Access (0x1800)
- Device Name [R W] (0x2A00)
- Appearance [R] (0x2A01)
- Peripheral Preferred Connection Parameters [R] (0x2A04)
- Central Address Resolution [R] (0x2AA6)
Generic Attribute (0x1801)
- Service Changed [I] (0x2A05)
   Client Characteristic Configuration (0x2902)
Secure DFU Service (0xFE59)
- Secure Buttonless DFU [I W] (8ec90004-f315-4f60-9fb8-838830daea50)
   Client Characteristic Configuration (0x2902)
D	14:15:36.605	gatt.setCharacteristicNotification(00002a05-0000-1000-8000-00805f9b34fb, true)
V	14:15:45.419	[DFU] DFU service started
V	14:15:45.419	[DFU] Opening file...
I	14:15:45.440	[DFU] Firmware file opened successfully
V	14:15:45.440	[DFU] Connecting to DFU target...
D	14:15:45.441	[DFU] gatt = device.connectGatt(autoConnect = false, TRANSPORT_LE, preferredPhy = LE_1M | LE_2M)
I	14:15:45.449	[DFU] Connected to E0:6E:0D:23:1D:8D
D	14:15:45.450	[DFU] wait(1600)
V	14:15:47.057	[DFU] Discovering services...
D	14:15:47.057	[DFU] gatt.discoverServices()
I	14:15:47.057	[DFU] Services discovered
V	14:15:47.073	[DFU] Reading Service Changed CCCD value...
D	14:15:47.073	[DFU] gatt.readDescriptor(00002902-0000-1000-8000-00805f9b34fb)
I	14:15:47.196	[DFU] Read Response received from descr.00002a05-0000-1000-8000-00805f9b34fb, value (0x): 02-00
A	14:15:47.196	[DFU] Service Changed indications enabled
D	14:15:47.212	[DFU] wait(1000)
W	14:15:48.203	[DFU] Application with buttonless update found
V	14:15:48.203	[DFU] Jumping to the DFU Bootloader...
V	14:15:48.203	[DFU] Enabling indications for 8ec90004-f315-4f60-9fb8-838830daea50
D	14:15:48.204	[DFU] gatt.setCharacteristicNotification(8ec90004-f315-4f60-9fb8-838830daea50, true)
D	14:15:48.205	[DFU] gatt.writeDescriptor(00002902-0000-1000-8000-00805f9b34fb, value=0x02-00)
I	14:15:48.276	[DFU] Data written to descr.8ec90004-f315-4f60-9fb8-838830daea50, value (0x): 02-00
V	14:15:48.276	[DFU] Notifications enabled for 8ec90004-f315-4f60-9fb8-838830daea50
A	14:15:48.276	[DFU] Indications enabled
D	14:15:48.276	[DFU] wait(1000)
V	14:15:49.296	[DFU] Writing to characteristic 8ec90004-f315-4f60-9fb8-838830daea50
D	14:15:49.296	[DFU] gatt.writeCharacteristic(8ec90004-f315-4f60-9fb8-838830daea50)
D	14:15:54.358	[Server callback] Connection state changed with status: 0 and new state: DISCONNECTED (0)
I	14:15:54.358	[Server] Device disconnected
D	14:15:54.366	[Callback] Connection state changed with status: 8 and new state: DISCONNECTED (0)
E	14:15:54.367	Error 8 (0x8): GATT CONN TIMEOUT
I	14:15:54.367	Disconnected
A	14:15:54.369	[DFU] Enter bootloader sent (Op Code = 1)
I	14:15:54.400	[DFU] Disconnected by the remote device
D	14:15:54.400	[DFU] gatt.disconnect()
D	14:15:54.400	[DFU] gatt.close()
D	14:15:54.417	[Broadcast] Action received: android.bluetooth.device.action.ACL_DISCONNECTED
D	14:15:54.433	[DFU] [Broadcast] Action received: android.bluetooth.device.action.ACL_DISCONNECTED
V	14:15:54.433	[DFU] DFU service started
I	14:15:54.433	[DFU] Firmware file opened successfully
D	14:15:54.433	[DFU] wait(1000)
D	14:15:55.432	[DFU] wait(1000)
V	14:15:56.428	[DFU] Connecting to DFU target...
D	14:15:56.472	[DFU] gatt = device.connectGatt(autoConnect = false, TRANSPORT_LE, preferredPhy = LE_1M | LE_2M)
D	14:16:26.492	[Server callback] Connection state changed with status: 0 and new state: DISCONNECTED (0)
I	14:16:26.492	[Server] Device disconnected
E	14:16:26.503	[DFU] Error 133: Connection timeout
W	14:16:26.504	[DFU] Retrying...
D	14:16:26.504	[DFU] gatt.refresh() (hidden)
D	14:16:26.504	[DFU] gatt.disconnect()
D	14:16:26.504	[DFU] gatt.close()
V	14:16:26.584	[DFU] DFU service started
I	14:16:26.584	[DFU] Firmware file opened successfully
D	14:16:26.584	[DFU] wait(1000)
D	14:16:27.587	[DFU] wait(1000)
V	14:16:28.553	[DFU] Connecting to DFU target...
D	14:16:28.555	[DFU] gatt = device.connectGatt(autoConnect = false, TRANSPORT_LE, preferredPhy = LE_1M | LE_2M)
D	14:16:41.436	[Server callback] Connection state changed with status: 0 and new state: CONNECTED (2)
I	14:16:41.436	[Server] Device with address E0:6E:0D:23:1D:8D connected
I	14:16:41.472	[DFU] Connected to E0:6E:0D:23:1D:8D
D	14:16:41.472	[DFU] wait(1600)
D	14:16:41.473	[Broadcast] Action received: android.bluetooth.device.action.ACL_CONNECTED
D	14:16:41.508	[DFU] [Broadcast] Action received: android.bluetooth.device.action.ACL_CONNECTED
V	14:16:43.048	[DFU] Discovering services...
D	14:16:43.048	[DFU] gatt.discoverServices()
I	14:16:43.059	[DFU] Services discovered
V	14:16:43.060	[DFU] Reading Service Changed CCCD value...
D	14:16:43.060	[DFU] gatt.readDescriptor(00002902-0000-1000-8000-00805f9b34fb)
I	14:16:43.130	[DFU] Read Response received from descr.00002a05-0000-1000-8000-00805f9b34fb, value (0x): 02-00
A	14:16:43.130	[DFU] Service Changed indications enabled
D	14:16:43.165	[DFU] wait(1000)
W	14:16:44.148	[DFU] Application with buttonless update found
V	14:16:44.148	[DFU] Jumping to the DFU Bootloader...
V	14:16:44.148	[DFU] Enabling indications for 8ec90004-f315-4f60-9fb8-838830daea50
D	14:16:44.148	[DFU] gatt.setCharacteristicNotification(8ec90004-f315-4f60-9fb8-838830daea50, true)
D	14:16:44.149	[DFU] gatt.writeDescriptor(00002902-0000-1000-8000-00805f9b34fb, value=0x02-00)
I	14:16:44.210	[DFU] Data written to descr.8ec90004-f315-4f60-9fb8-838830daea50, value (0x): 02-00
V	14:16:44.210	[DFU] Notifications enabled for 8ec90004-f315-4f60-9fb8-838830daea50
A	14:16:44.210	[DFU] Indications enabled
D	14:16:44.210	[DFU] wait(1000)
V	14:16:45.221	[DFU] Writing to characteristic 8ec90004-f315-4f60-9fb8-838830daea50
D	14:16:45.221	[DFU] gatt.writeCharacteristic(8ec90004-f315-4f60-9fb8-838830daea50)
D	14:16:50.324	[Server callback] Connection state changed with status: 0 and new state: DISCONNECTED (0)
I	14:16:50.324	[Server] Device disconnected
A	14:16:50.335	[DFU] Enter bootloader sent (Op Code = 1)
I	14:16:50.335	[DFU] Disconnected by the remote device
D	14:16:50.335	[DFU] gatt.disconnect()
D	14:16:50.335	[DFU] gatt.close()
D	14:16:50.361	[Broadcast] Action received: android.bluetooth.device.action.ACL_DISCONNECTED
D	14:16:50.361	[DFU] [Broadcast] Action received: android.bluetooth.device.action.ACL_DISCONNECTED
V	14:16:50.392	[DFU] DFU service started
I	14:16:50.392	[DFU] Firmware file opened successfully
D	14:16:50.392	[DFU] wait(1000)
D	14:16:51.421	[DFU] wait(1000)
V	14:16:52.393	[DFU] Connecting to DFU target...
D	14:16:52.459	[DFU] gatt = device.connectGatt(autoConnect = false, TRANSPORT_LE, preferredPhy = LE_1M | LE_2M)
D	14:17:22.463	[Server callback] Connection state changed with status: 0 and new state: DISCONNECTED (0)
I	14:17:22.463	[Server] Device disconnected
E	14:17:22.495	[DFU] Error 133: Connection timeout
W	14:17:22.495	[DFU] Retrying...
D	14:17:22.495	[DFU] gatt.refresh() (hidden)
D	14:17:22.495	[DFU] gatt.disconnect()
D	14:17:22.495	[DFU] gatt.close()
V	14:17:22.533	[DFU] DFU service started
I	14:17:22.533	[DFU] Firmware file opened successfully
D	14:17:22.533	[DFU] wait(1000)
D	14:17:23.510	[DFU] wait(1000)
V	14:17:24.520	[DFU] Connecting to DFU target...
D	14:17:24.520	[DFU] gatt = device.connectGatt(autoConnect = false, TRANSPORT_LE, preferredPhy = LE_1M | LE_2M)

[Einar Thorsrud]

Hi,

There is not much to go on here, unfortunately. Can you please:

1. Clarify in detail where you get the "failed to write memory".
2. Provide a detailed and complete description on the issue
3. Provide complete projects and detailed instructions on how I can reproduce the error.