<?xml version="1.0" encoding="UTF-8" ?>
<?xml-stylesheet type="text/xsl" href="https://devzone.nordicsemi.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>How to backport a example from sdk 14.3 to sdk 12.3</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/51258/how-to-backport-a-example-from-sdk-14-3-to-sdk-12-3</link><description>Hello All, 
 
 I am working on the N51822 custom board. 
 Using segger IDE, SDK 12.3 
 Previously i have worked on the sdk 14.3 on the n52810 board. It is working properly on that. 
 
 But now i have replicated same on the n51822 module with SES IDE </description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Sat, 31 Aug 2019 12:33:48 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/51258/how-to-backport-a-example-from-sdk-14-3-to-sdk-12-3" /><item><title>RE: How to backport a example from sdk 14.3 to sdk 12.3</title><link>https://devzone.nordicsemi.com/thread/207235?ContentTypeID=1</link><pubDate>Sat, 31 Aug 2019 12:33:48 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:76db6843-27f4-44dc-819c-44082b72e906</guid><dc:creator>Rohit</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
&lt;p&gt;Please check my code it is from sdk 14.3&lt;br /&gt;i have import to sdk 12.3 (pca10028) how can i do it..?&lt;/p&gt;
&lt;p&gt;&lt;pre class="ui-code" data-mode="text"&gt;/**
 * Copyright (c) 2015 - 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 &amp;quot;AS IS&amp;quot; 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.
 * 
 */
/**
 * @brief Blinky Sample Application main file.
 *
 * This file contains the source code for a sample server application using the LED Button service.
 */

#include &amp;lt;stdint.h&amp;gt;
#include &amp;lt;string.h&amp;gt;
#include &amp;quot;nordic_common.h&amp;quot;
#include &amp;quot;nrf.h&amp;quot;
#include &amp;quot;app_error.h&amp;quot;
#include &amp;quot;ble.h&amp;quot;
#include &amp;quot;ble_err.h&amp;quot;
#include &amp;quot;ble_hci.h&amp;quot;
#include &amp;quot;ble_srv_common.h&amp;quot;
#include &amp;quot;ble_advdata.h&amp;quot;
#include &amp;quot;ble_conn_params.h&amp;quot;
#include &amp;quot;nrf_sdh.h&amp;quot;
#include &amp;quot;nrf_sdh_ble.h&amp;quot;
#include &amp;quot;boards.h&amp;quot;
#include &amp;quot;app_timer.h&amp;quot;
#include &amp;quot;app_button.h&amp;quot;
#include &amp;quot;ble_lbs.h&amp;quot;
#include &amp;quot;nrf_ble_gatt.h&amp;quot;

#include &amp;quot;nrf_log.h&amp;quot;
#include &amp;quot;nrf_log_ctrl.h&amp;quot;
#include &amp;quot;nrf_log_default_backends.h&amp;quot;

#include &amp;quot;bsp.h&amp;quot;


#define APP_FEATURE_NOT_SUPPORTED       BLE_GATT_STATUS_ATTERR_APP_BEGIN + 2    /**&amp;lt; Reply when unsupported features are requested. */

#define ADVERTISING_LED                 BSP_BOARD_LED_0                         /**&amp;lt; Is on when device is advertising. */
#define CONNECTED_LED                   BSP_BOARD_LED_1                         /**&amp;lt; Is on when device has connected. */
#define LEDBUTTON_LED                   BSP_BOARD_LED_2                         /**&amp;lt; LED to be toggled with the help of the LED Button Service. */
#define LEDBUTTON_BUTTON                BSP_BUTTON_0                            /**&amp;lt; Button that will trigger the notification event with the LED Button Service */

#define DEVICE_NAME                     &amp;quot;FIND_53&amp;quot;   /**&amp;lt; Name of device. Will be included in the advertising data. */
                                                   
#define APP_BLE_OBSERVER_PRIO           3                                       /**&amp;lt; Application&amp;#39;s BLE observer priority. You shouldn&amp;#39;t need to modify this value. */
#define APP_BLE_CONN_CFG_TAG            1                                       /**&amp;lt; A tag identifying the SoftDevice BLE configuration. */

#define APP_ADV_INTERVAL                80      //500                               /**&amp;lt; The advertising interval (in units of 0.625 ms; this value corresponds to 40 ms). */
#define APP_ADV_TIMEOUT_IN_SECONDS      BLE_GAP_ADV_TIMEOUT_GENERAL_UNLIMITED   /**&amp;lt; The advertising time-out (in units of seconds). When set to 0, we will never time out. */

#define MIN_CONN_INTERVAL               MSEC_TO_UNITS(100, UNIT_1_25_MS)        /**&amp;lt; Minimum acceptable connection interval (0.5 seconds). */
#define MAX_CONN_INTERVAL               MSEC_TO_UNITS(200, UNIT_1_25_MS)        /**&amp;lt; Maximum acceptable connection interval (1 second). */
#define SLAVE_LATENCY                   0                                       /**&amp;lt; Slave latency. */
#define CONN_SUP_TIMEOUT                MSEC_TO_UNITS(4000, UNIT_10_MS)         /**&amp;lt; Connection supervisory time-out (4 seconds). */

#define FIRST_CONN_PARAMS_UPDATE_DELAY  APP_TIMER_TICKS(20000)                  /**&amp;lt; Time from initiating event (connect or start of notification) to first time sd_ble_gap_conn_param_update is called (15 seconds). */
#define NEXT_CONN_PARAMS_UPDATE_DELAY   APP_TIMER_TICKS(5000)                   /**&amp;lt; Time between each call to sd_ble_gap_conn_param_update after the first call (5 seconds). */
#define MAX_CONN_PARAMS_UPDATE_COUNT    3                                       /**&amp;lt; Number of attempts before giving up the connection parameter negotiation. */

#define BUTTON_DETECTION_DELAY          APP_TIMER_TICKS(50)                     /**&amp;lt; Delay from a GPIOTE event until a button is reported as pushed (in number of timer ticks). */

#define DEAD_BEEF                       0xDEADBEEF                              /**&amp;lt; Value used as error code on stack dump, can be used to identify stack location on stack unwind. */


BLE_LBS_DEF(m_lbs);                                                             /**&amp;lt; LED Button Service instance. */
NRF_BLE_GATT_DEF(m_gatt);                                                       /**&amp;lt; GATT module instance. */

static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID;                        /**&amp;lt; Handle of the current connection. */

 //static uint32_t cnt = 0;
/**@brief Function for assert macro callback.
 *
 * @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] p_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 the LEDs initialization.
 *
 * @details Initializes all LEDs used by the application.
 */
static void leds_init(void)
{
    bsp_board_leds_init();
}


/**@brief Function for the Timer initialization.
 *
 * @details Initializes the timer module.
 */
static void timers_init(void)
{
    // Initialize timer module, making it use the scheduler
    ret_code_t err_code = app_timer_init();
    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)
{
    ret_code_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(&amp;amp;sec_mode);

    err_code = sd_ble_gap_device_name_set(&amp;amp;sec_mode,
                                          (const uint8_t *)DEVICE_NAME,
                                          strlen(DEVICE_NAME));
    APP_ERROR_CHECK(err_code);

    memset(&amp;amp;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(&amp;amp;gap_conn_params);
    APP_ERROR_CHECK(err_code);
}


/**@brief Function for initializing the GATT module.
 */
static void gatt_init(void)
{
    ret_code_t err_code = nrf_ble_gatt_init(&amp;amp;m_gatt, NULL);
    APP_ERROR_CHECK(err_code);
}


/**@brief Function for initializing the Advertising functionality.
 *
 * @details Encodes the required advertising data and passes it to the stack.
 *          Also builds a structure to be passed to the stack when starting advertising.
 */
static void advertising_init(void)
{
    ret_code_t    err_code;
    ble_advdata_t advdata;
    ble_advdata_t srdata;

    ble_uuid_t adv_uuids[] = {{LBS_UUID_SERVICE, m_lbs.uuid_type}};

    // Build and set advertising data
    memset(&amp;amp;advdata, 0, sizeof(advdata));

    advdata.name_type          = BLE_ADVDATA_FULL_NAME;
    advdata.include_appearance = true;
    advdata.flags              = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;


    memset(&amp;amp;srdata, 0, sizeof(srdata));
    srdata.uuids_complete.uuid_cnt = sizeof(adv_uuids) / sizeof(adv_uuids[0]);
    srdata.uuids_complete.p_uuids  = adv_uuids;

    err_code = ble_advdata_set(&amp;amp;advdata, &amp;amp;srdata);
    APP_ERROR_CHECK(err_code);
}


/**@brief Function for handling write events to the LED characteristic.
 *
 * @param[in] p_lbs     Instance of LED Button Service to which the write applies.
 * @param[in] led_state Written/desired state of the LED.
 */
static void led_write_handler(uint16_t conn_handle, ble_lbs_t * p_lbs, uint8_t led_state)
{
    if (led_state)
    {
        bsp_board_led_on(LEDBUTTON_LED);
        NRF_LOG_INFO(&amp;quot;Received LED ON!&amp;quot;);
    }
    else
    {
        bsp_board_led_off(LEDBUTTON_LED);
        NRF_LOG_INFO(&amp;quot;Received LED OFF!&amp;quot;);
    }
}


/**@brief Function for initializing services that will be used by the application.
 */
static void services_init(void)
{
    ret_code_t     err_code;
    ble_lbs_init_t init;

    init.led_write_handler = led_write_handler;

    err_code = ble_lbs_init(&amp;amp;m_lbs, &amp;amp;init);
    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 the Connection Parameters Module.
 *
 * @details This function will be called for all events in the Connection Parameters Module that
 *          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)
{
    ret_code_t err_code;

    if (p_evt-&amp;gt;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)
{
    ret_code_t             err_code;
    ble_conn_params_init_t cp_init;

    memset(&amp;amp;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(&amp;amp;cp_init);
    APP_ERROR_CHECK(err_code);
}


/**@brief Function for starting advertising.
 */
static void advertising_start(void)
{
    ret_code_t           err_code;
    ble_gap_adv_params_t adv_params;

    // Start advertising
    memset(&amp;amp;adv_params, 0, sizeof(adv_params));

    adv_params.type        = BLE_GAP_ADV_TYPE_ADV_IND;
    adv_params.p_peer_addr = NULL;
    adv_params.fp          = BLE_GAP_ADV_FP_ANY;
    adv_params.interval    = APP_ADV_INTERVAL;
    adv_params.timeout     = APP_ADV_TIMEOUT_IN_SECONDS;

    err_code = sd_ble_gap_adv_start(&amp;amp;adv_params, APP_BLE_CONN_CFG_TAG);
    APP_ERROR_CHECK(err_code);
    bsp_board_led_on(ADVERTISING_LED);
}


/**@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)
{
    ret_code_t err_code;

    switch (p_ble_evt-&amp;gt;header.evt_id)
    {
        case BLE_GAP_EVT_CONNECTED:
            NRF_LOG_INFO(&amp;quot;Connected&amp;quot;);
            bsp_board_led_on(CONNECTED_LED);
            bsp_board_led_off(ADVERTISING_LED);
            m_conn_handle = p_ble_evt-&amp;gt;evt.gap_evt.conn_handle;

            err_code = app_button_enable();
            APP_ERROR_CHECK(err_code);
            break;

        case BLE_GAP_EVT_DISCONNECTED:
            NRF_LOG_INFO(&amp;quot;Disconnected&amp;quot;);
            bsp_board_led_off(CONNECTED_LED);
            m_conn_handle = BLE_CONN_HANDLE_INVALID;
//            err_code = app_button_disable();
//            APP_ERROR_CHECK(err_code);
            advertising_start();
            break;

        case BLE_GAP_EVT_SEC_PARAMS_REQUEST:
            // Pairing not supported
            err_code = sd_ble_gap_sec_params_reply(m_conn_handle,
                                                   BLE_GAP_SEC_STATUS_PAIRING_NOT_SUPP,
                                                   NULL,
                                                   NULL);
            APP_ERROR_CHECK(err_code);
            break;

#ifndef S140
        case BLE_GAP_EVT_PHY_UPDATE_REQUEST:
        {
            NRF_LOG_DEBUG(&amp;quot;PHY update request.&amp;quot;);
            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-&amp;gt;evt.gap_evt.conn_handle, &amp;amp;phys);
            APP_ERROR_CHECK(err_code);
        } break;
#endif

        case BLE_GATTS_EVT_SYS_ATTR_MISSING:
            // No system attributes have been stored.
            err_code = sd_ble_gatts_sys_attr_set(m_conn_handle, NULL, 0, 0);
            APP_ERROR_CHECK(err_code);
            break;

        case BLE_GATTC_EVT_TIMEOUT:
            // Disconnect on GATT Client timeout event.
            NRF_LOG_DEBUG(&amp;quot;GATT Client Timeout.&amp;quot;);
            err_code = sd_ble_gap_disconnect(p_ble_evt-&amp;gt;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(&amp;quot;GATT Server Timeout.&amp;quot;);
            err_code = sd_ble_gap_disconnect(p_ble_evt-&amp;gt;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-&amp;gt;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-&amp;gt;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-&amp;gt;evt.gatts_evt.conn_handle,
                                                               &amp;amp;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, &amp;amp;ram_start);
    APP_ERROR_CHECK(err_code);

    // Enable BLE stack.
    err_code = nrf_sdh_ble_enable(&amp;amp;ram_start);
    APP_ERROR_CHECK(err_code);

    // Register a handler for BLE events.
    NRF_SDH_BLE_OBSERVER(m_ble_observer, APP_BLE_OBSERVER_PRIO, ble_evt_handler, NULL);
}

#define BT0_SHORT_PUSH BSP_EVENT_KEY_0
#define BT0_LONG_PUSH  BSP_EVENT_KEY_1


/**@brief Function for handling events from the BSP module.
 *
 * @param[in]   event   Event generated by button press.
 */
void bsp_event_handler(bsp_event_t event)
{
    uint32_t err_code;
    switch (event)
    {
        case BT0_SHORT_PUSH:
            NRF_LOG_INFO(&amp;quot;Short button press&amp;quot;);
            break;
        
        case BT0_LONG_PUSH:
            NRF_LOG_INFO(&amp;quot;Long button press&amp;quot;);
            break;

        default:
            break;
    }
}
/**@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)
{
    bsp_event_t startup_event;

    uint32_t err_code = bsp_init(BSP_INIT_BUTTONS, bsp_event_handler);
    APP_ERROR_CHECK(err_code);

    err_code = bsp_event_to_button_action_assign(BSP_BOARD_BUTTON_0, BSP_BUTTON_ACTION_PUSH, BT0_SHORT_PUSH);
    APP_ERROR_CHECK(err_code);

    err_code = bsp_event_to_button_action_assign(BSP_BOARD_BUTTON_0, BSP_BUTTON_ACTION_LONG_PUSH, BT0_LONG_PUSH);
    APP_ERROR_CHECK(err_code);

    /*err_code = bsp_btn_ble_init(NULL, &amp;amp;startup_event);
    APP_ERROR_CHECK(err_code);

    *p_erase_bonds = (startup_event == BSP_EVENT_CLEAR_BONDING_DATA);*/
}

/**@brief Function for handling events from the button handler module.
 *
 * @param[in] pin_no        The pin that the event applies to.
 * @param[in] button_action The button action (press/release).
 */
static void button_event_handler(uint8_t pin_no, uint8_t button_action)
{
    ret_code_t err_code;

    switch (pin_no)
    {
        case LEDBUTTON_BUTTON:
            advertising_start();
            NRF_LOG_INFO(&amp;quot;Send button state change.&amp;quot;);
            err_code = ble_lbs_on_button_change(m_conn_handle, &amp;amp;m_lbs, button_action);
            if (err_code != NRF_SUCCESS &amp;amp;&amp;amp;
                err_code != BLE_ERROR_INVALID_CONN_HANDLE &amp;amp;&amp;amp;
                err_code != NRF_ERROR_INVALID_STATE &amp;amp;&amp;amp;
                err_code != BLE_ERROR_GATTS_SYS_ATTR_MISSING)
            {
                APP_ERROR_CHECK(err_code);
            }
            break;

        default:
            APP_ERROR_HANDLER(pin_no);
            break;
    }
}

/**@brief Function for the Power Manager.
 */
static void power_manage(void)
{
    ret_code_t err_code = sd_app_evt_wait();
    APP_ERROR_CHECK(err_code);
}


#if USE_BSP == 0

#define PIN_0 0

APP_TIMER_DEF(m_button_action);

#define BUTTON_STATE_POLL_INTERVAL_MS  10UL

#define LONG_PRESS(MS)    (uint32_t)(MS)/BUTTON_STATE_POLL_INTERVAL_MS 
static uint32_t flag = 0, temp = 0; 

void button_timeout_handler(void * p_context)
{ 
     uint32_t err_code;
     static uint32_t cnt = 0, flag = 0,temp=0;

     if ((app_button_is_pushed(0)))
     {
         cnt++;
         if ( (cnt &amp;gt;= LONG_PRESS(2000)) &amp;amp;&amp;amp; (flag == 1 ))
         {
             cnt = 0;
             flag = 2;

             NRF_LOG_INFO(&amp;quot;Long Button press&amp;quot;);
             NRF_LOG_INFO(&amp;quot;stop advertising...&amp;quot;);

             err_code = sd_ble_gap_adv_stop();     //stop advertising
             APP_ERROR_CHECK(err_code);
             
             return;
         }
         else
         {
              err_code = app_timer_start(m_button_action, 
                                         APP_TIMER_TICKS(BUTTON_STATE_POLL_INTERVAL_MS),
                                         NULL);
              APP_ERROR_CHECK(err_code);
         }
     }
     else if((flag == 2 &amp;amp;&amp;amp; temp == 1) ||  temp == 0 )
     {

          cnt = 0;                         // reset counter variable
          flag = 1;
          temp = 1;

          NRF_LOG_INFO(&amp;quot;Short button press&amp;quot;);
          NRF_LOG_INFO(&amp;quot;advertising.......&amp;quot;);

          gap_params_init();
          advertising_init();

          advertising_start();            //start advertising
          return;
     }

}

void button_callback(uint8_t pin_no, uint8_t button_action)
{
      uint32_t err_code;

      
      if ((pin_no == BUTTON_1) &amp;amp;&amp;amp; (button_action == APP_BUTTON_PUSH))
      {
          err_code = app_timer_start(m_button_action, 
                                     APP_TIMER_TICKS(BUTTON_STATE_POLL_INTERVAL_MS),
                                     NULL);
          APP_ERROR_CHECK(err_code);
      }
}
/**@brief Function for initializing the button handler module.
 */
static void buttons_init(void)
{
//    ret_code_t err_code;
//
//    //The array must be static because a pointer to it will be saved in the button handler module.
//    static app_button_cfg_t buttons[] =
//    {
//        {LEDBUTTON_BUTTON, false, BUTTON_PULL, button_event_handler}
//    };
//
//    err_code = app_button_init(buttons, sizeof(buttons) / sizeof(buttons[0]),
//                               BUTTON_DETECTION_DELAY);
//    APP_ERROR_CHECK(err_code);

 uint32_t err_code;
      
      static app_button_cfg_t  button_cfg;

      button_cfg.pin_no         = BUTTON_1;
      button_cfg.button_handler = button_callback;
      button_cfg.pull_cfg       = NRF_GPIO_PIN_PULLUP;
      button_cfg.active_state   = APP_BUTTON_ACTIVE_LOW;
      
      err_code = app_button_init(&amp;amp;button_cfg, 1, 100);
      APP_ERROR_CHECK(err_code);
      
      err_code = app_button_enable();
      APP_ERROR_CHECK(err_code);

      /*Enable an app timer instance to detect long button press*/
      err_code = app_timer_create(&amp;amp;m_button_action, APP_TIMER_MODE_SINGLE_SHOT, button_timeout_handler);
      APP_ERROR_CHECK(err_code);
}
#endif //USE_BSP

static void log_init(void)
{
    ret_code_t err_code = NRF_LOG_INIT(NULL);
    APP_ERROR_CHECK(err_code);

    NRF_LOG_DEFAULT_BACKENDS_INIT();
}




/**@brief Function for application main entry.
 */
int main(void)
{
    // Initialize.
    leds_init();
    timers_init();
    log_init();
#if USE_BSP == 0
    buttons_init();
#else
    buttons_leds_init(&amp;amp;erase_bonds);
#endif
    //buttons_init();
    ble_stack_init();
    gap_params_init();
    gatt_init();
    services_init();
    advertising_init();
    conn_params_init();

    // Start execution.
    NRF_LOG_INFO(&amp;quot;FIND test example started.&amp;quot;);
    //advertising_start();

    // Enter main loop.
    for (;;)
    {

        if (NRF_LOG_PROCESS() == false)
        {     
            //buttons_init();
            power_manage();
          
        }
    }
}


/**
 * @}
 */
&lt;/pre&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;this code is working for the nrf52810 i sdk 14.3.&lt;br /&gt;Now i have to replicate on the nrf51822...&lt;br /&gt;&lt;br /&gt;&lt;/p&gt;
&lt;p&gt;Please provide your input..&lt;br /&gt;Waiting for the response...&lt;/p&gt;
&lt;p&gt;Regards,&lt;/p&gt;
&lt;p&gt;Rohit&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: How to backport a example from sdk 14.3 to sdk 12.3</title><link>https://devzone.nordicsemi.com/thread/205459?ContentTypeID=1</link><pubDate>Thu, 22 Aug 2019 07:41:52 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:c5e9337e-8b55-4498-8df6-5f68180431d9</guid><dc:creator>Rohit</dc:creator><description>&lt;p&gt;Hi Jimmy,&lt;/p&gt;
&lt;p&gt;Thanks for your response.&lt;/p&gt;
&lt;p&gt;I will check with it and let you after some time.&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;Thanks&lt;/p&gt;
&lt;p&gt;Rohit&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: How to backport a example from sdk 14.3 to sdk 12.3</title><link>https://devzone.nordicsemi.com/thread/205365?ContentTypeID=1</link><pubDate>Wed, 21 Aug 2019 14:44:04 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:3b60c2d5-28e1-4c41-8ed8-cbcf2e006c74</guid><dc:creator>Jimmy Wong</dc:creator><description>&lt;p&gt;Hi,&lt;br /&gt;&lt;br /&gt;I did the SDK 12.3 for NRF51824 example on SES.&lt;/p&gt;
&lt;p&gt;&lt;a href="https://github.com/jimmywong2003/SES-Project-For-NRF51"&gt;https://github.com/jimmywong2003/SES-Project-For-NRF51&lt;/a&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>