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nrf51 add ota dfu service on hrs_scanner or ble_nus example

hi all,

I have added the dfu service in one of example of sdk_11 ble_scanner_hrs I followed all help available on this forum and made sucessfuly compiled code but it stopped advertising?

any help is appreciate I have attached my main file

/* Copyright (c) 2012 Nordic Semiconductor. All Rights Reserved.
 *
 * The information contained herein is property of Nordic Semiconductor ASA.
 * Terms and conditions of usage are described in detail in NORDIC
 * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
 *
 * Licensees are granted free, non-transferable use of the information. NO
 * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
 * the file.
 *
 */
/**
 * @brief Heart Rate Service Sample Application main file.
 *
 * This file contains the source code for a sample application using the Heart Rate service
 * (and also Battery and Device Information services). This application uses the
 * @ref srvlib_conn_params module.
 */

#include <stdint.h>
#include <string.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_bas.h"
#include "ble_hrs.h"
#include "ble_dis.h"
#include "ble_conn_params.h"
#include "bsp.h"
#include "sensorsim.h"
#include "bsp_btn_ble.h"
#include "softdevice_handler.h"
#include "app_timer.h"
#include "device_manager.h"
#include "pstorage.h"
#include "app_trace.h"
#include "scanner_beacon.h"
#include "D:\SDK_Nordic\nRF5_SDK_11.0.0_89a8197\components\libraries\uart\app_uart.h"
#include "D:\SDK_Nordic\nRF5_SDK_11.0.0_89a8197\components\ble\ble_services\ble_dfu\ble_dfu.h"
#include "D:\SDK_Nordic\nRF5_SDK_11.0.0_89a8197\components\libraries\bootloader_dfu\dfu_app_handler.h"
#include "ble_nus.h"
#include "D:\SDK_Nordic\nRF5_SDK_11.0.0_89a8197\components\libraries\bootloader_dfu\bootloader.h"
#include "D:\SDK_Nordic\nRF5_SDK_11.0.0_89a8197\components\libraries\bootloader_dfu\bootloader_util.h"

#define IS_SRVC_CHANGED_CHARACT_PRESENT         1                                       /**< Include or not the service_changed characteristic. if not enabled, the server's database cannot be changed for the lifetime of the device*/

#define CENTRAL_LINK_COUNT                      0                                       /**< Number of central links used by the application. When changing this number remember to adjust the RAM settings*/
#define PERIPHERAL_LINK_COUNT                   1                                       /**< Number of peripheral links used by the application. When changing this number remember to adjust the RAM settings*/

#define SEARCHED_MAJOR                          0x1200
#define SEARCHED_MINOR                          0x3400
#define APP_COMPANY_IDENTIFIER                  0x0059                                  /**< Company identifier for Nordic Semiconductor ASA. as per www.bluetooth.org. */

/**@brief Function for handling a BeaconScanner event.
 *
 * @details This function will be called each time the scanner has found an advertiser with beacon data.
 *          In this simple implementation, it checks the Major and Minor and company ID fields from the beacon data,
 *          and if they match, @ref BSP_INDICATE_ALERT_3 is indicated. 
 *
 * @param[in]   p_evt   scanner event data.
 */
static void beacon_evt_handler(ble_scan_beacon_evt_t * p_evt)
{
    uint32_t err_code;

    if((p_evt->rcv_adv_packet.adv_data.major    == SEARCHED_MAJOR)
     &&(p_evt->rcv_adv_packet.adv_data.minor    == SEARCHED_MINOR)
     &&(p_evt->rcv_adv_packet.adv_data.manuf_id == APP_COMPANY_IDENTIFIER)
		)
    {
			  printf("\nMAJOR=%d\n",p_evt->rcv_adv_packet.adv_data.major);
			  printf("\nMINOR=%d\n",p_evt->rcv_adv_packet.adv_data.minor);
			  printf("\nNordicid=%d\n",p_evt->rcv_adv_packet.adv_data.manuf_id);
			  printf("\nrssi=%d\n",p_evt->rcv_adv_packet.adv_data.rssi);
			  printf("\nuuid=%d\n",p_evt->rcv_adv_packet.adv_data.uuid);
        err_code = bsp_indication_set(BSP_INDICATE_ALERT_3);
        APP_ERROR_CHECK(err_code);
    }
}


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

static ble_beacon_scanner_init_t m_beacon_scanner_init;
/*end addition for beacon*/


#define MAX_TEST_DATA_BYTES     (15U)                /**< max number of test bytes to be used for tx and rx. */
#define UART_TX_BUF_SIZE 256                         /**< UART TX buffer size. */
#define UART_RX_BUF_SIZE 1                           /**< UART RX buffer size. */



void uart_error_handle(app_uart_evt_t * p_event)
{
    if (p_event->evt_type == APP_UART_COMMUNICATION_ERROR)
    {
        APP_ERROR_HANDLER(p_event->data.error_communication);
    }
    else if (p_event->evt_type == APP_UART_FIFO_ERROR)
    {
        APP_ERROR_HANDLER(p_event->data.error_code);
    }
}



#define DEVICE_NAME                          "Nordic_HRM_sca"                               /**< 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                     480                                         /**< The advertising interval (in units of 0.625 ms. This value corresponds to 300 ms). */
#define APP_ADV_TIMEOUT_IN_SECONDS           180                                        /**< The advertising timeout in units of seconds. */

#define APP_TIMER_PRESCALER                  0                                          /**< Value of the RTC1 PRESCALER register. */
#define APP_TIMER_OP_QUEUE_SIZE              4                                          /**< Size of timer operation queues. */

#define BATTERY_LEVEL_MEAS_INTERVAL          APP_TIMER_TICKS(2000, APP_TIMER_PRESCALER) /**< Battery level measurement interval (ticks). */
#define MIN_BATTERY_LEVEL                    81                                         /**< Minimum simulated battery level. */
#define MAX_BATTERY_LEVEL                    100                                        /**< Maximum simulated battery level. */
#define BATTERY_LEVEL_INCREMENT              1                                          /**< Increment between each simulated battery level measurement. */

#define HEART_RATE_MEAS_INTERVAL             APP_TIMER_TICKS(1000, APP_TIMER_PRESCALER) /**< Heart rate measurement interval (ticks). */
#define MIN_HEART_RATE                       140                                        /**< Minimum heart rate as returned by the simulated measurement function. */
#define MAX_HEART_RATE                       300                                        /**< Maximum heart rate as returned by the simulated measurement function. */
#define HEART_RATE_INCREMENT                 10                                         /**< Value by which the heart rate is incremented/decremented for each call to the simulated measurement function. */

#define RR_INTERVAL_INTERVAL                 APP_TIMER_TICKS(300, APP_TIMER_PRESCALER)  /**< RR interval interval (ticks). */
#define MIN_RR_INTERVAL                      100                                        /**< Minimum RR interval as returned by the simulated measurement function. */
#define MAX_RR_INTERVAL                      500                                        /**< Maximum RR interval as returned by the simulated measurement function. */
#define RR_INTERVAL_INCREMENT                1                                          /**< Value by which the RR interval is incremented/decremented for each call to the simulated measurement function. */

#define SENSOR_CONTACT_DETECTED_INTERVAL     APP_TIMER_TICKS(5000, APP_TIMER_PRESCALER) /**< Sensor Contact Detected toggle interval (ticks). */

#define MIN_CONN_INTERVAL                    MSEC_TO_UNITS(500, UNIT_1_25_MS)           /**< Minimum acceptable connection interval (0.5 seconds). */
#define MAX_CONN_INTERVAL                    MSEC_TO_UNITS(1000, UNIT_1_25_MS)          /**< Maximum acceptable connection interval (1 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, APP_TIMER_PRESCALER) /**< 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, APP_TIMER_PRESCALER)/**< 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. */

static uint16_t                              m_conn_handle = BLE_CONN_HANDLE_INVALID;   /**< Handle of the current connection. */
static ble_bas_t                             m_bas;                                     /**< Structure used to identify the battery service. */
static ble_hrs_t                             m_hrs;      /**< Structure used to identify the heart rate service. */
static ble_dfu_t                             m_dfus;
static bool                                  m_rr_interval_enabled = true;              /**< Flag for enabling and disabling the registration of new RR interval measurements (the purpose of disabling this is just to test sending HRM without RR interval data. */

static sensorsim_cfg_t                       m_battery_sim_cfg;                         /**< Battery Level sensor simulator configuration. */
static sensorsim_state_t                     m_battery_sim_state;                       /**< Battery Level sensor simulator state. */
static sensorsim_cfg_t                       m_heart_rate_sim_cfg;                      /**< Heart Rate sensor simulator configuration. */
static sensorsim_state_t                     m_heart_rate_sim_state;                    /**< Heart Rate sensor simulator state. */
static sensorsim_cfg_t                       m_rr_interval_sim_cfg;                     /**< RR Interval sensor simulator configuration. */
static sensorsim_state_t                     m_rr_interval_sim_state;                   /**< RR Interval sensor simulator state. */

APP_TIMER_DEF(m_battery_timer_id);                                                      /**< Battery timer. */
APP_TIMER_DEF(m_heart_rate_timer_id);                                                   /**< Heart rate measurement timer. */
APP_TIMER_DEF(m_rr_interval_timer_id);                                                  /**< RR interval timer. */
APP_TIMER_DEF(m_sensor_contact_timer_id);                                               /**< Sensor contact detected timer. */

static dm_application_instance_t             m_app_handle;                              /**< Application identifier allocated by device manager */
static ble_nus_t                        m_nus;                                      /**< Structure to identify the Nordic UART Service. */
//static uint16_t                         m_conn_handle = BLE_CONN_HANDLE_INVALID;    /**< Handle of the current connection. */

//static ble_uuid_t                       m_adv_uuids[] = {{BLE_UUID_NUS_SERVICE, NUS_SERVICE_UUID_TYPE}};  /**< Universally unique service identifier. */

static ble_uuid_t m_adv_uuids[] =                                                       /**< Universally unique service identifiers. */
{
    {BLE_UUID_HEART_RATE_SERVICE,         BLE_UUID_TYPE_BLE},
    {BLE_UUID_BATTERY_SERVICE,            BLE_UUID_TYPE_BLE},
    {BLE_UUID_DEVICE_INFORMATION_SERVICE, BLE_UUID_TYPE_BLE}
};



/**@brief   Function for handling app_uart events.
 *
 * @details This function will receive a single character from the app_uart module and append it to 
 *          a string. The string will be be sent over BLE when the last character received was a 
 *          'new line' i.e '\n' (hex 0x0D) or if the string has reached a length of 
 *          @ref NUS_MAX_DATA_LENGTH.
 */
/**@snippet [Handling the data received over UART] */
void uart_event_handle(app_uart_evt_t * p_event)
{
    static uint8_t data_array[BLE_NUS_MAX_DATA_LEN];
    static uint8_t index = 0;
    uint32_t       err_code;

    switch (p_event->evt_type)
    {
        case APP_UART_DATA_READY:
            UNUSED_VARIABLE(app_uart_get(&data_array[index]));
            index++;

            if ((data_array[index - 1] == '\n') || (index >= (BLE_NUS_MAX_DATA_LEN)))
            {
                err_code = ble_nus_string_send(&m_nus, data_array, index);
                if (err_code != NRF_ERROR_INVALID_STATE)
                {
                    APP_ERROR_CHECK(err_code);
                }
                
                index = 0;
            }
            break;

        case APP_UART_COMMUNICATION_ERROR:
            APP_ERROR_HANDLER(p_event->data.error_communication);
            break;

        case APP_UART_FIFO_ERROR:
            APP_ERROR_HANDLER(p_event->data.error_code);
            break;

        default:
            break;
    }
}
/**@snippet [Handling the data received over UART] */


void uart_inti()
{
	
	  uint32_t err_code;
    const app_uart_comm_params_t comm_params =
      {
          RX_PIN_NUMBER,
          TX_PIN_NUMBER,
          RTS_PIN_NUMBER,
          CTS_PIN_NUMBER,
          APP_UART_FLOW_CONTROL_ENABLED,
          false,
          UART_BAUDRATE_BAUDRATE_Baud115200
      };

    APP_UART_FIFO_INIT(&comm_params,
                         UART_RX_BUF_SIZE,
                         UART_TX_BUF_SIZE,
                         uart_event_handle, // uart_error_handle,
                         APP_IRQ_PRIORITY_LOW,
                         err_code);

    APP_ERROR_CHECK(err_code);

    printf("\n\rStart: \n\r");

}

/**@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 the data from the Nordic UART Service.
 *
 * @details This function will process the data received from the Nordic UART BLE Service and send
 *          it to the UART module.
 *
 * @param[in] p_nus    Nordic UART Service structure.
 * @param[in] p_data   Data to be send to UART module.
 * @param[in] length   Length of the data.
 */
/**@snippet [Handling the data received over BLE] */
static void nus_data_handler(ble_nus_t * p_nus, uint8_t * p_data, uint16_t length)
{
    for (uint32_t i = 0; i < length; i++)
    {
        while(app_uart_put(p_data[i]) != NRF_SUCCESS);
    }
    while(app_uart_put('\n') != NRF_SUCCESS);
}

/**@brief Function for performing battery measurement and updating the Battery Level characteristic
 *        in Battery Service.
 */
static void battery_level_update(void)
{
    uint32_t err_code;
    uint8_t  battery_level;

    battery_level = (uint8_t)sensorsim_measure(&m_battery_sim_state, &m_battery_sim_cfg);

    err_code = ble_bas_battery_level_update(&m_bas, battery_level);
    if ((err_code != NRF_SUCCESS) &&
        (err_code != NRF_ERROR_INVALID_STATE) &&
        (err_code != BLE_ERROR_NO_TX_PACKETS) &&
        (err_code != BLE_ERROR_GATTS_SYS_ATTR_MISSING)
    )
    {
        APP_ERROR_HANDLER(err_code);
    }
}


/**@brief Function for handling the Battery measurement timer timeout.
 *
 * @details This function will be called each time the battery level measurement timer expires.
 *
 * @param[in]   p_context   Pointer used for passing some arbitrary information (context) from the
 *                          app_start_timer() call to the timeout handler.
 */
static void battery_level_meas_timeout_handler(void * p_context)
{
    UNUSED_PARAMETER(p_context);
    battery_level_update();
}


/**@brief Function for handling the Heart rate measurement timer timeout.
 *
 * @details This function will be called each time the heart rate measurement timer expires.
 *          It will exclude RR Interval data from every third measurement.
 *
 * @param[in]   p_context   Pointer used for passing some arbitrary information (context) from the
 *                          app_start_timer() call to the timeout handler.
 */
static void heart_rate_meas_timeout_handler(void * p_context)
{
    static uint32_t cnt = 0;
    uint32_t        err_code;
    uint16_t        heart_rate;

    UNUSED_PARAMETER(p_context);

    heart_rate = (uint16_t)sensorsim_measure(&m_heart_rate_sim_state, &m_heart_rate_sim_cfg);

    cnt++;
    err_code = ble_hrs_heart_rate_measurement_send(&m_hrs, heart_rate);
    if ((err_code != NRF_SUCCESS) &&
        (err_code != NRF_ERROR_INVALID_STATE) &&
        (err_code != BLE_ERROR_NO_TX_PACKETS) &&
        (err_code != BLE_ERROR_GATTS_SYS_ATTR_MISSING)
    )
    {
        APP_ERROR_HANDLER(err_code);
    }

    // Disable RR Interval recording every third heart rate measurement.
    // NOTE: An application will normally not do this. It is done here just for testing generation
    //       of messages without RR Interval measurements.
    m_rr_interval_enabled = ((cnt % 3) != 0);
}


/**@brief Function for handling the RR interval timer timeout.
 *
 * @details This function will be called each time the RR interval timer expires.
 *
 * @param[in]   p_context   Pointer used for passing some arbitrary information (context) from the
 *                          app_start_timer() call to the timeout handler.
 */
static void rr_interval_timeout_handler(void * p_context)
{
    UNUSED_PARAMETER(p_context);

    if (m_rr_interval_enabled)
    {
        uint16_t rr_interval;

        rr_interval = (uint16_t)sensorsim_measure(&m_rr_interval_sim_state,
                                                      &m_rr_interval_sim_cfg);
        ble_hrs_rr_interval_add(&m_hrs, rr_interval);
    }
}


/**@brief Function for handling the Sensor Contact Detected timer timeout.
 *
 * @details This function will be called each time the Sensor Contact Detected timer expires.
 *
 * @param[in]   p_context   Pointer used for passing some arbitrary information (context) from the
 *                          app_start_timer() call to the timeout handler.
 */
static void sensor_contact_detected_timeout_handler(void * p_context)
{
    static bool sensor_contact_detected = false;

    UNUSED_PARAMETER(p_context);

    sensor_contact_detected = !sensor_contact_detected;
    ble_hrs_sensor_contact_detected_update(&m_hrs, sensor_contact_detected);
}

/**@brief Function for the Timer initialization.
 *
 * @details Initializes the timer module. This creates and starts application timers.
 */
static void timers_init(void)
{
    uint32_t err_code;

    // Initialize timer module.
    APP_TIMER_INIT(APP_TIMER_PRESCALER, APP_TIMER_OP_QUEUE_SIZE, false);

    // Create timers.
    err_code = app_timer_create(&m_battery_timer_id,
                                APP_TIMER_MODE_REPEATED,
                                battery_level_meas_timeout_handler);
    APP_ERROR_CHECK(err_code);

    err_code = app_timer_create(&m_heart_rate_timer_id,
                                APP_TIMER_MODE_REPEATED,
                                heart_rate_meas_timeout_handler);
    APP_ERROR_CHECK(err_code);

    err_code = app_timer_create(&m_rr_interval_timer_id,
                                APP_TIMER_MODE_REPEATED,
                                rr_interval_timeout_handler);
    APP_ERROR_CHECK(err_code);

    err_code = app_timer_create(&m_sensor_contact_timer_id,
                                APP_TIMER_MODE_REPEATED,
                                sensor_contact_detected_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);

    err_code = sd_ble_gap_appearance_set(BLE_APPEARANCE_HEART_RATE_SENSOR_HEART_RATE_BELT);
    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 initializing services that will be used by the application.
 *
 * @details Initialize the Heart Rate, Battery and Device Information services.
 */

/**@brief Function for preparing for system reset.
 *
 * @details This function implements @ref dfu_app_reset_prepare_t. It will be called by 
 *          @ref dfu_app_handler.c before entering the bootloader/DFU.
 *          This allows the current running application to shut down gracefully.
 */
static void reset_prepare(void)
{
    uint32_t err_code;

    if (m_conn_handle != BLE_CONN_HANDLE_INVALID)
    {
        // Disconnect from peer.
        err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
        APP_ERROR_CHECK(err_code);
        err_code = bsp_indication_set(BSP_INDICATE_IDLE);
        APP_ERROR_CHECK(err_code);
    }
    else
    {
        // If not connected, the device will be advertising. Hence stop the advertising.
       // advertising_stop();
    }

    err_code = ble_conn_params_stop();
    APP_ERROR_CHECK(err_code);

   // nrf_delay_ms(500);
}
static void services_init(void)
{
    uint32_t       err_code;
    ble_hrs_init_t hrs_init;
    ble_bas_init_t bas_init;
    ble_dis_init_t dis_init;
    uint8_t        body_sensor_location;

    // Initialize Heart Rate Service.
    body_sensor_location = BLE_HRS_BODY_SENSOR_LOCATION_FINGER;

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

    hrs_init.evt_handler                 = NULL;
    hrs_init.is_sensor_contact_supported = true;
    hrs_init.p_body_sensor_location      = &body_sensor_location;

    // Here the sec level for the Heart Rate Service can be changed/increased.
    BLE_GAP_CONN_SEC_MODE_SET_OPEN(&hrs_init.hrs_hrm_attr_md.cccd_write_perm);
    BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&hrs_init.hrs_hrm_attr_md.read_perm);
    BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&hrs_init.hrs_hrm_attr_md.write_perm);

    BLE_GAP_CONN_SEC_MODE_SET_OPEN(&hrs_init.hrs_bsl_attr_md.read_perm);
    BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&hrs_init.hrs_bsl_attr_md.write_perm);

    err_code = ble_hrs_init(&m_hrs, &hrs_init);
    APP_ERROR_CHECK(err_code);

    // Initialize Battery Service.
    memset(&bas_init, 0, sizeof(bas_init));

    // Here the sec level for the Battery Service can be changed/increased.
    BLE_GAP_CONN_SEC_MODE_SET_OPEN(&bas_init.battery_level_char_attr_md.cccd_write_perm);
    BLE_GAP_CONN_SEC_MODE_SET_OPEN(&bas_init.battery_level_char_attr_md.read_perm);
    BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&bas_init.battery_level_char_attr_md.write_perm);

    BLE_GAP_CONN_SEC_MODE_SET_OPEN(&bas_init.battery_level_report_read_perm);

    bas_init.evt_handler          = NULL;
    bas_init.support_notification = true;
    bas_init.p_report_ref         = NULL;
    bas_init.initial_batt_level   = 100;

    err_code = ble_bas_init(&m_bas, &bas_init);
    APP_ERROR_CHECK(err_code);

    // Initialize Device Information Service.
    memset(&dis_init, 0, sizeof(dis_init));

    ble_srv_ascii_to_utf8(&dis_init.manufact_name_str, (char *)MANUFACTURER_NAME);

    BLE_GAP_CONN_SEC_MODE_SET_OPEN(&dis_init.dis_attr_md.read_perm);
    BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&dis_init.dis_attr_md.write_perm);

    err_code = ble_dis_init(&dis_init);
    APP_ERROR_CHECK(err_code);
		
		 ble_dfu_init_t   dfus_init;

    // Initialize the Device Firmware Update Service.
    memset(&dfus_init, 0, sizeof(dfus_init));

    dfus_init.evt_handler   = dfu_app_on_dfu_evt;
    dfus_init.error_handler = NULL;
    dfus_init.evt_handler   = dfu_app_on_dfu_evt;
  //  dfus_init.revision      = DFU_REVISION;

    err_code = ble_dfu_init(&m_dfus, &dfus_init);
    APP_ERROR_CHECK(err_code);

    dfu_app_reset_prepare_set(reset_prepare);
    dfu_app_dm_appl_instance_set(m_app_handle);
		
		 
    ble_nus_init_t nus_init;
    
    memset(&nus_init, 0, sizeof(nus_init));

    nus_init.data_handler = nus_data_handler;
    
    err_code = ble_nus_init(&m_nus, &nus_init);
    APP_ERROR_CHECK(err_code);
}


/**@brief Function for initializing the sensor simulators.
 */
static void sensor_simulator_init(void)
{
    m_battery_sim_cfg.min          = MIN_BATTERY_LEVEL;
    m_battery_sim_cfg.max          = MAX_BATTERY_LEVEL;
    m_battery_sim_cfg.incr         = BATTERY_LEVEL_INCREMENT;
    m_battery_sim_cfg.start_at_max = true;

    sensorsim_init(&m_battery_sim_state, &m_battery_sim_cfg);

    m_heart_rate_sim_cfg.min          = MIN_HEART_RATE;
    m_heart_rate_sim_cfg.max          = MAX_HEART_RATE;
    m_heart_rate_sim_cfg.incr         = HEART_RATE_INCREMENT;
    m_heart_rate_sim_cfg.start_at_max = false;

    sensorsim_init(&m_heart_rate_sim_state, &m_heart_rate_sim_cfg);

    m_rr_interval_sim_cfg.min          = MIN_RR_INTERVAL;
    m_rr_interval_sim_cfg.max          = MAX_RR_INTERVAL;
    m_rr_interval_sim_cfg.incr         = RR_INTERVAL_INCREMENT;
    m_rr_interval_sim_cfg.start_at_max = false;

    sensorsim_init(&m_rr_interval_sim_state, &m_rr_interval_sim_cfg);
}


/**@brief Function for starting application timers.
 */
static void application_timers_start(void)
{
    uint32_t err_code;

    // Start application timers.
    err_code = app_timer_start(m_battery_timer_id, BATTERY_LEVEL_MEAS_INTERVAL, NULL);
    APP_ERROR_CHECK(err_code);

    err_code = app_timer_start(m_heart_rate_timer_id, HEART_RATE_MEAS_INTERVAL, NULL);
    APP_ERROR_CHECK(err_code);

    err_code = app_timer_start(m_rr_interval_timer_id, RR_INTERVAL_INTERVAL, NULL);
    APP_ERROR_CHECK(err_code);

    err_code = app_timer_start(m_sensor_contact_timer_id, SENSOR_CONTACT_DETECTED_INTERVAL, NULL);
    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    = m_hrs.hrm_handles.cccd_handle;
    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 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);

    err_code = bsp_indication_set(BSP_INDICATE_ALERT_OFF);
    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 the Application's BLE Stack events.
 *
 * @param[in]   p_ble_evt   Bluetooth stack event.
 */
static void on_ble_evt(ble_evt_t * p_ble_evt)
{
    uint32_t err_code;

    switch (p_ble_evt->header.evt_id)
    {
        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;

        case BLE_GAP_EVT_DISCONNECTED:
            err_code = bsp_indication_set(BSP_INDICATE_IDLE);
            APP_ERROR_CHECK(err_code);

            err_code = bsp_indication_set(BSP_INDICATE_ALERT_OFF);
            APP_ERROR_CHECK(err_code);
            break;

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


/**@brief Function for dispatching a BLE stack event to all modules with a BLE stack event handler.
 *
 * @details This function is called from the BLE Stack event interrupt handler after a BLE stack
 *          event has been received.
 *
 * @param[in]   p_ble_evt   Bluetooth stack event.
 */
static void ble_evt_dispatch(ble_evt_t * p_ble_evt)
{
    app_beacon_scanner_on_ble_evt(p_ble_evt);
    dm_ble_evt_handler(p_ble_evt);
    ble_hrs_on_ble_evt(&m_hrs, p_ble_evt);
    ble_bas_on_ble_evt(&m_bas, p_ble_evt);
    ble_conn_params_on_ble_evt(p_ble_evt);
    bsp_btn_ble_on_ble_evt(p_ble_evt);
    on_ble_evt(p_ble_evt);
    ble_advertising_on_ble_evt(p_ble_evt);
	 // ble_dfu_on_ble_evt(&m_dfus, p_ble_evt);
}


/**@brief Function for dispatching a system event to interested modules.
 *
 * @details This function is called from the System event interrupt handler after a system
 *          event has been received.
 *
 * @param[in]   sys_evt   System stack event.
 */
static void sys_evt_dispatch(uint32_t sys_evt)
{
    pstorage_sys_event_handler(sys_evt);
    app_beacon_scanner_on_sys_evt(sys_evt);
    ble_advertising_on_sys_evt(sys_evt);
}


/**@brief Function for initializing the beacon scanner module.
 */
static void scanner_init()
{
    m_beacon_scanner_init.evt_handler   = beacon_evt_handler;
    m_beacon_scanner_init.error_handler = beacon_scanner_error_handler;
    app_beacon_scanner_init(&m_beacon_scanner_init);
}


/**@brief Function for starting the beacon scanner module.
 */
static void scanner_start()
{
    app_beacon_scanner_start();
}


/**@brief Function for handling the data from the Nordic UART Service.
 *
 * @details This function will process the data received from the Nordic UART BLE Service and send
 *          it to the UART module.
 *
 * @param[in] p_nus    Nordic UART Service structure.
 * @param[in] p_data   Data to be send to UART module.
 * @param[in] length   Length of the data.
 */
/**@snippet [Handling the data received over BLE] */
/*static void nus_data_handler(ble_nus_t * p_nus, uint8_t * p_data, uint16_t length)
{
    for (uint32_t i = 0; i < length; i++)
    {
        while(app_uart_put(p_data[i]) != NRF_SUCCESS);
    }
    while(app_uart_put('\n') != NRF_SUCCESS);
}*/
/**@brief Function for initializing the BLE stack.
 *
 * @details Initializes the SoftDevice and the BLE event interrupt.
 */
static void ble_stack_init(bool init_softdevice)
{
    uint32_t err_code;
    
   sd_mbr_command_t com = {SD_MBR_COMMAND_INIT_SD, };
    nrf_clock_lf_cfg_t clock_lf_cfg = NRF_CLOCK_LFCLKSRC;

    if (init_softdevice)
    {
        err_code = sd_mbr_command(&com);
        APP_ERROR_CHECK(err_code);
    }
    
    err_code = sd_softdevice_vector_table_base_set(BOOTLOADER_REGION_START);
    APP_ERROR_CHECK(err_code);
    
    // Initialize the SoftDevice handler module.
    SOFTDEVICE_HANDLER_INIT(&clock_lf_cfg, NULL);
    
    ble_enable_params_t ble_enable_params;
    err_code = softdevice_enable_get_default_config(CENTRAL_LINK_COUNT,
                                                    PERIPHERAL_LINK_COUNT,
                                                    &ble_enable_params);
    APP_ERROR_CHECK(err_code);
    
    //Check the ram settings against the used number of links
    CHECK_RAM_START_ADDR(CENTRAL_LINK_COUNT,PERIPHERAL_LINK_COUNT);
    
    // Enable BLE stack.
    err_code = softdevice_enable(&ble_enable_params);
    APP_ERROR_CHECK(err_code);

    // Register with the SoftDevice handler module for BLE events.
    err_code = softdevice_ble_evt_handler_set(ble_evt_dispatch);
    APP_ERROR_CHECK(err_code);

    // Register with the SoftDevice handler module for BLE events.
    err_code = softdevice_sys_evt_handler_set(sys_evt_dispatch);
    APP_ERROR_CHECK(err_code);
}


/**@brief Function for handling events from the BSP module.
 *
 * @param[in]   event   Event generated by button press.
 */
static void bsp_event_handler(bsp_event_t event)
{
    uint32_t err_code;
    switch (event)
    {
        case BSP_EVENT_SLEEP:
            sleep_mode_enter();
            break;

        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;

        default:
            break;
    }
}


/**@brief Function for handling the Device Manager events.
 *
 * @param[in]   p_evt   Data associated to the device manager event.
 */
static uint32_t device_manager_evt_handler(dm_handle_t const    * p_handle,
                                           dm_event_t const     * p_event,
                                           ret_code_t           event_result)
{
    APP_ERROR_CHECK(event_result);
    return NRF_SUCCESS;
}


/**@brief Function for the Device Manager initialization.
 *
 * @param[in] erase_bonds  Indicates whether bonding information should be cleared from
 *                         persistent storage during initialization of the Device Manager.
 */
static void device_manager_init(bool erase_bonds)
{
    uint32_t               err_code;
    dm_init_param_t        init_param = {.clear_persistent_data = erase_bonds};
    dm_application_param_t register_param;
    
    // Initialize persistent storage module.
    err_code = pstorage_init();
    APP_ERROR_CHECK(err_code);

    err_code = dm_init(&init_param);
    APP_ERROR_CHECK(err_code);

    memset(&register_param.sec_param, 0, sizeof(ble_gap_sec_params_t));
    
    register_param.sec_param.bond         = SEC_PARAM_BOND;
    register_param.sec_param.mitm         = SEC_PARAM_MITM;
    register_param.sec_param.lesc         = SEC_PARAM_LESC;
    register_param.sec_param.keypress     = SEC_PARAM_KEYPRESS;
    register_param.sec_param.io_caps      = SEC_PARAM_IO_CAPABILITIES;
    register_param.sec_param.oob          = SEC_PARAM_OOB;
    register_param.sec_param.min_key_size = SEC_PARAM_MIN_KEY_SIZE;
    register_param.sec_param.max_key_size = SEC_PARAM_MAX_KEY_SIZE;
    register_param.evt_handler            = device_manager_evt_handler;
    register_param.service_type           = DM_PROTOCOL_CNTXT_GATT_SRVR_ID;

    err_code = dm_register(&m_app_handle, &register_param);
    APP_ERROR_CHECK(err_code);
}


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

    // Build advertising data struct to pass into @ref ble_advertising_init.
    memset(&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;
    advdata.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);
    advdata.uuids_complete.p_uuids  = m_adv_uuids;

    ble_adv_modes_config_t options = {0};
    options.ble_adv_fast_enabled  = BLE_ADV_FAST_ENABLED;
    options.ble_adv_fast_interval = APP_ADV_INTERVAL;
    options.ble_adv_fast_timeout  = APP_ADV_TIMEOUT_IN_SECONDS;

    err_code = ble_advertising_init(&advdata, NULL, &options, on_adv_evt, NULL);
    APP_ERROR_CHECK(err_code);
}

/**@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_LED | BSP_INIT_BUTTONS,
                                 APP_TIMER_TICKS(100, APP_TIMER_PRESCALER),
                                 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 power_manage(void)
{
    uint32_t err_code = sd_app_evt_wait();
    APP_ERROR_CHECK(err_code);
}


/**@brief Function for application main entry.
 */
int main(void)
{
    uint32_t err_code;
    bool erase_bonds;
    bool     dfu_start = false;
    bool     app_reset = (NRF_POWER->GPREGRET == BOOTLOADER_DFU_START);
    // Initialize.
    timers_init();
	  uart_inti();
    buttons_leds_init(&erase_bonds);
    ble_stack_init(!app_reset);
    device_manager_init(erase_bonds);
    gap_params_init();
    advertising_init();
    services_init();
    //sensor_simulator_init();
   // conn_params_init();
    scanner_init();

    // Start execution.
    scanner_start();
  //  application_timers_start();
    err_code = ble_advertising_start(BLE_ADV_MODE_FAST);
    APP_ERROR_CHECK(err_code);

    // Enter main loop.
    for (;;)
    {
		
        power_manage();
    }
}


I have attached the bootloder_util.c ,ble_dfu.c,dfu_app_handler.c and made changes according it.

I also changed ram setting in keil.

Thanks in advance

  • /* Copyright (c) 2014 Nordic Semiconductor. All Rights Reserved.
     *
     * The information contained herein is property of Nordic Semiconductor ASA.
     * Terms and conditions of usage are described in detail in NORDIC
     * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
     *
     * Licensees are granted free, non-transferable use of the information. NO
     * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
     * the file.
     *
     */
    #include "scanner_beacon.h"
    #include <stdio.h>
    #include <string.h>
    
    #include "app_error.h"
    #include "app_util.h"
    
    
    #define SCAN_INTERVAL_MS  100
    #define WINDOW_LEN_MS    (SCAN_INTERVAL_MS / 4)
    #define MAX_ADV_PACK_LEN (BLE_GAP_ADV_MAX_SIZE + BLE_GAP_ADDR_LEN + 2)
    #define ADV_TYPE_LEN      2
    #define BEACON_DATA_LEN   21
    
    static struct
    {
        ble_scan_beacon_evt_handler_t evt_handler;
        ble_srv_error_handler_t       error_handler;                      /**< Function to be called in case of an error. */
        ble_gap_scan_params_t         scan_params;
    } m_beacon_scanner;
    
    static void decode_ad_type_flags(uint8_t *buffer, uint8_t len, adv_packet_t *adv_packet)
    {
        int i = 1;
        adv_packet->gap_ad_flags = buffer[i];
    }
    
    
    static void decode_ad_manuf_spec_data(uint8_t *buffer, uint8_t len, adv_packet_t *adv_packet)
    {
        int i = 1;
        adv_packet->adv_data.manuf_id = uint16_decode(&buffer[i]);
        i += sizeof(uint16_t);
        adv_packet->adv_data.beacon_dev_type = buffer[i++];
        uint8_t data_len = buffer[i++];
        if (data_len == BEACON_DATA_LEN)
        {
            memcpy(&adv_packet->adv_data.uuid, &buffer[i], sizeof(ble_uuid128_t));
            i += sizeof(ble_uuid128_t);
            adv_packet->adv_data.major = uint16_decode(&buffer[i]);
            i += sizeof(uint16_t);
            adv_packet->adv_data.minor = uint16_decode(&buffer[i]);
            i += sizeof(uint16_t);
            adv_packet->adv_data.rssi = uint16_decode(&buffer[i]);
        }
        else
        {
            memset(&adv_packet->adv_data.uuid, 0, sizeof(ble_uuid128_t));
            adv_packet->adv_data.major = 0;
            adv_packet->adv_data.minor = 0;
            adv_packet->adv_data.rssi = 0;
        }
    }
    
    
    static uint32_t decode_advertising(uint8_t *buffer, uint8_t buffer_len, adv_packet_t *adv_packet)
    {
        uint8_t i = 0; 
        
        do
        {
            uint8_t field_len = buffer[i++];
            if(buffer[i] == BLE_GAP_AD_TYPE_FLAGS)
            {
                if (field_len != ADV_TYPE_LEN)
                {
                    return NRF_ERROR_NOT_FOUND;
                }
                decode_ad_type_flags(&buffer[i], field_len, adv_packet);
                i += field_len;
            }
            else if (buffer[i] == BLE_GAP_AD_TYPE_MANUFACTURER_SPECIFIC_DATA)
            {
                decode_ad_manuf_spec_data(&buffer[i], field_len, adv_packet);
                i += field_len;
            }
        }while( i < buffer_len);
    
        return NRF_SUCCESS;    
    }
    
    
    void app_beacon_scanner_on_sys_evt(uint32_t event)
    {
        // no implementation needed
    }
    
    void app_beacon_scanner_on_ble_evt(ble_evt_t * p_ble_evt)
    {
        if (p_ble_evt->header.evt_id == BLE_GAP_EVT_ADV_REPORT)
        {
            ble_scan_beacon_evt_t evt;
            uint32_t err_code = decode_advertising(p_ble_evt->evt.gap_evt.params.adv_report.data, p_ble_evt->evt.gap_evt.params.adv_report.dlen, &evt.rcv_adv_packet);
            if (err_code == NRF_SUCCESS)
            {
                if (m_beacon_scanner.evt_handler != NULL)
                {
                        evt.evt_type = BLE_SCAN_BEACON_ADVERTISER_FOUND;
                        m_beacon_scanner.evt_handler(&evt);
                }
            }
        }
    }
    
    void app_beacon_scanner_init(ble_beacon_scanner_init_t * p_init)
    {
        m_beacon_scanner.evt_handler = p_init->evt_handler;
        m_beacon_scanner.error_handler= p_init->error_handler;
        
        memset(&m_beacon_scanner.scan_params, 0, sizeof(m_beacon_scanner.scan_params));
        m_beacon_scanner.scan_params.active      = false;
        m_beacon_scanner.scan_params.selective   = false;
        m_beacon_scanner.scan_params.p_whitelist = NULL;
        m_beacon_scanner.scan_params.interval    = MSEC_TO_UNITS(SCAN_INTERVAL_MS, UNIT_0_625_MS); 
        m_beacon_scanner.scan_params.window      = MSEC_TO_UNITS(WINDOW_LEN_MS, UNIT_0_625_MS);    
        m_beacon_scanner.scan_params.timeout     = 0; // disable timeout
    }
    
    void app_beacon_scanner_start(void)
    {
        uint32_t err_code;
    
        err_code = sd_ble_gap_scan_start(&m_beacon_scanner.scan_params);
        if (err_code != NRF_SUCCESS)
        {
            if (m_beacon_scanner.error_handler != NULL)
            {
                m_beacon_scanner.error_handler(err_code);
            }
        }
    }
    
    void app_beacon_scanner_stop(void)
    {
        uint32_t err_code;
        
        err_code = sd_ble_gap_scan_stop();
        if (err_code != NRF_SUCCESS)
        {
            if (m_beacon_scanner.error_handler != NULL)
            {
                m_beacon_scanner.error_handler(err_code);
            }
        }
    }
    
    
    this is the file which decode the beacon advertising

    and this is main

    /* Copyright (c) 2014 Nordic Semiconductor. All Rights Reserved.
     *
     * The information contained herein is property of Nordic Semiconductor ASA.
     * Terms and conditions of usage are described in detail in NORDIC
     * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
     *
     * Licensees are granted free, non-transferable use of the information. NO
     * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
     * the file.
     *
     */
    /** @example examples/ble_peripheral/ble_app_hrs/main.c
     *
     * @brief Heart Rate Service Sample Application main file.
     *
     * This file contains the source code for a sample application using the Heart Rate service
     * (and also Battery and Device Information services). This application uses the
     * @ref srvlib_conn_params module.
     */
    
    #include <stdint.h>
    #include <string.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_bas.h"
    #include "ble_hrs.h"
    #include "ble_dis.h"
    #ifdef BLE_DFU_APP_SUPPORT
    #include "ble_dfu.h"
    #include "dfu_app_handler.h"
    #endif // BLE_DFU_APP_SUPPORT
    #include "ble_conn_params.h"
    #include "boards.h"
    #include "sensorsim.h"
    #include "softdevice_handler.h"
    #include "app_timer.h"
    #include "device_manager.h"
    #include "pstorage.h"
    #include "app_trace.h"
    #include "bsp.h"
    #include "nrf_delay.h"
    #include "bsp_btn_ble.h"
    #include "ble_nus_c.h"
    #include "app_uart.h"
    
    #define IS_SRVC_CHANGED_CHARACT_PRESENT  1                                          /**< Include or not the service_changed characteristic. if not enabled, the server's database cannot be changed for the lifetime of the device*/
    
    #define CENTRAL_LINK_COUNT               0                                          /**< Number of central links used by the application. When changing this number remember to adjust the RAM settings*/
    #define PERIPHERAL_LINK_COUNT            1                                          /**< Number of peripheral links used by the application. When changing this number remember to adjust the RAM settings*/
    
    #define DEVICE_NAME                      "scanner"                               /**< 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 25 ms). */
    #define APP_ADV_TIMEOUT_IN_SECONDS       180                                        /**< The advertising timeout in units of seconds. */
    
    #define APP_TIMER_PRESCALER              0                                          /**< Value of the RTC1 PRESCALER register. */
    #define APP_TIMER_OP_QUEUE_SIZE         2                                         /**< Size of timer operation queues. */
    
    #define SCAN_INTERVAL           0x00A0                          /**< Determines scan interval in units of 0.625 millisecond. */
    #define SCAN_WINDOW             0x0050                          /**< Determines scan window in units of 0.625 millisecond. */
    #define SCAN_ACTIVE             1                               /**< If 1, performe active scanning (scan requests). */
    #define SCAN_SELECTIVE          0                               /**< If 1, ignore unknown devices (non whitelisted). */
    #define SCAN_TIMEOUT            0x0000                          /**< Timout when scanning. 0x0000 disables timeout. */
    
    //#define BATTERY_LEVEL_MEAS_INTERVAL      APP_TIMER_TICKS(2000, APP_TIMER_PRESCALER) /**< Battery level measurement interval (ticks). */
    //#define MIN_BATTERY_LEVEL                81                                         /**< Minimum simulated battery level. */
    //#define MAX_BATTERY_LEVEL                100                                        /**< Maximum simulated 7battery level. */
    //#define BATTERY_LEVEL_INCREMENT          1                                          /**< Increment between each simulated battery level measurement. */
    
    //#define HEART_RATE_MEAS_INTERVAL         APP_TIMER_TICKS(1000, APP_TIMER_PRESCALER) /**< Heart rate measurement interval (ticks). */
    //#define MIN_HEART_RATE                   140                                        /**< Minimum heart rate as returned by the simulated measurement function. */
    //#define MAX_HEART_RATE                   300                                        /**< Maximum heart rate as returned by the simulated measurement function. */
    //#define HEART_RATE_INCREMENT             10                                         /**< Value by which the heart rate is incremented/decremented for each call to the simulated measurement function. */
    
    //#define RR_INTERVAL_INTERVAL             APP_TIMER_TICKS(300, APP_TIMER_PRESCALER)  /**< RR interval interval (ticks). */
    //#define MIN_RR_INTERVAL                  100                                        /**< Minimum RR interval as returned by the simulated measurement function. */
    //#define MAX_RR_INTERVAL                  500                                        /**< Maximum RR interval as returned by the simulated measurement function. */
    //#define RR_INTERVAL_INCREMENT            1                                          /**< Value by which the RR interval is incremented/decremented for each call to the simulated measurement function. */
    
    //#define SENSOR_CONTACT_DETECTED_INTERVAL APP_TIMER_TICKS(5000, APP_TIMER_PRESCALER) /**< Sensor Contact Detected toggle interval (ticks). */
    
    #define MIN_CONN_INTERVAL                MSEC_TO_UNITS(400, UNIT_1_25_MS)           /**< Minimum acceptable connection interval (0.4 seconds). */
    #define MAX_CONN_INTERVAL                MSEC_TO_UNITS(650, UNIT_1_25_MS)           /**< Maximum acceptable connection interval (0.65 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, APP_TIMER_PRESCALER) /**< 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, APP_TIMER_PRESCALER)/**< 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. */
    #ifdef BLE_DFU_APP_SUPPORT
    #define DFU_REV_MAJOR                    0x00                                       /** DFU Major revision number to be exposed. */
    #define DFU_REV_MINOR                    0x01                                       /** DFU Minor revision number to be exposed. */
    #define DFU_REVISION                     ((DFU_REV_MAJOR << 8) | DFU_REV_MINOR)     /** DFU Revision number to be exposed. Combined of major and minor versions. */
    #define APP_SERVICE_HANDLE_START         0x000C                                     /**< Handle of first application specific service when when service changed characteristic is present. */
    #define BLE_HANDLE_MAX                   0xFFFF                                     /**< Max handle value in BLE. */
    
    
    #define UUID16_SIZE             2                               /**< Size of 16 bit UUID */
    #define UUID32_SIZE             4                               /**< Size of 32 bit UUID */
    #define UUID128_SIZE            16                              /**< Size of 128 bit UUID */
    
    static ble_nus_c_t              m_ble_nus_c;                    /**< Instance of NUS service. Must be passed to all NUS_C API calls. */
    static ble_db_discovery_t       m_ble_db_discovery;             /**< Instance of database discovery module. Must be passed to all db_discovert API calls */
    
    #define UART_TX_BUF_SIZE        256                             /**< UART TX buffer size. */
    #define UART_RX_BUF_SIZE        256                             /**< UART RX buffer size. */
    
    #define MIN_CONNECTION_INTERVAL MSEC_TO_UNITS(20, UNIT_1_25_MS) /**< Determines minimum connection interval in millisecond. */
    #define MAX_CONNECTION_INTERVAL MSEC_TO_UNITS(75, UNIT_1_25_MS) /**< Determines maximum connection interval in millisecond. */
    #define SLAVE_LATENCY           0                               /**< Determines slave latency in counts of connection events. */
    #define SUPERVISION_TIMEOUT     MSEC_TO_UNITS(4000, UNIT_10_MS) /**< Determines supervision time-out in units of 10 millisecond. */
    
    
    
    STATIC_ASSERT(IS_SRVC_CHANGED_CHARACT_PRESENT);                                     /** When having DFU Service support in application the Service Changed Characteristic should always be present. */
    #endif // BLE_DFU_APP_SUPPORT
    
    #define NUS_SERVICE_UUID_TYPE   BLE_UUID_TYPE_VENDOR_BEGIN
    
    
    static uint16_t                          m_conn_handle = BLE_CONN_HANDLE_INVALID;   /**< Handle of the current connection. */
    //static ble_bas_t                         m_bas;                                     /**< Structure used to identify the battery service. */
    //static ble_hrs_t                         m_hrs;                                     /**< Structure used to identify the heart rate service. */
    //static bool                              m_rr_interval_enabled = true;              /**< Flag for enabling and disabling the registration of new RR interval measurements (the purpose of disabling this is just to test sending HRM without RR interval data. */
    
    //static sensorsim_cfg_t                   m_battery_sim_cfg;                         /**< Battery Level sensor simulator configuration. */
    //static sensorsim_state_t                 m_battery_sim_state;                       /**< Battery Level sensor simulator state. */
    //static sensorsim_cfg_t                   m_heart_rate_sim_cfg;                      /**< Heart Rate sensor simulator configuration. */
    //static sensorsim_state_t                 m_heart_rate_sim_state;                    /**< Heart Rate sensor simulator state. */
    //static sensorsim_cfg_t                   m_rr_interval_sim_cfg;                     /**< RR Interval sensor simulator configuration. */
    //static sensorsim_state_t                 m_rr_interval_sim_state;                   /**< RR Interval sensor simulator state. */
    
    //APP_TIMER_DEF(m_battery_timer_id);                                                  /**< Battery timer. */
    //APP_TIMER_DEF(m_heart_rate_timer_id);                                               /**< Heart rate measurement timer. */
    //APP_TIMER_DEF(m_rr_interval_timer_id);                                              /**< RR interval timer. */                 /**< RR interval timer. */
    //APP_TIMER_DEF(m_sensor_contact_timer_id);                                           /**< Sensor contact detected timer. */
    
    static dm_application_instance_t         m_app_handle;                              /**< Application identifier allocated by device manager */
    
    static ble_uuid_t m_adv_uuids[] = {{BLE_UUID_HEART_RATE_SERVICE,         BLE_UUID_TYPE_BLE},
                                       {BLE_UUID_BATTERY_SERVICE,            BLE_UUID_TYPE_BLE},
                                       {BLE_UUID_DEVICE_INFORMATION_SERVICE, BLE_UUID_TYPE_BLE}}; /**< Universally unique service identifiers. */
    #ifdef BLE_DFU_APP_SUPPORT
    static ble_dfu_t                         m_dfus;                                    /**< Structure used to identify the DFU service. */
    #endif // BLE_DFU_APP_SUPPORT
    
    
    /**@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);
    }
    
    //nus_service
    
    
    /**
     * @brief Connection parameters requested for connection.
     */
    static const ble_gap_conn_params_t m_connection_param =
      {
        (uint16_t)MIN_CONNECTION_INTERVAL,  // Minimum connection
        (uint16_t)MAX_CONNECTION_INTERVAL,  // Maximum connection
        (uint16_t)SLAVE_LATENCY,            // Slave latency
        (uint16_t)SUPERVISION_TIMEOUT       // Supervision time-out
      };
    
    /***
     * @brief NUS uuid
     */
    static const ble_uuid_t m_nus_uuid =
      {
        .uuid = BLE_UUID_NUS_SERVICE,
        .type = NUS_SERVICE_UUID_TYPE
      };
    
    	/**@brief Function for handling database discovery events.
     *
     * @details This function is callback function to handle events from the database discovery module.
     *          Depending on the UUIDs that are discovered, this function should forward the events
     *          to their respective services.
     *
     * @param[in] p_event  Pointer to the database discovery event.
     */
    static void db_disc_handler(ble_db_discovery_evt_t * p_evt)
    {
        ble_nus_c_on_db_disc_evt(&m_ble_nus_c, p_evt);
    }
    
    /**@brief   Function for handling app_uart events.
     *
     * @details This function will receive a single character from the app_uart module and append it to
     *          a string. The string will be be sent over BLE when the last character received was a
     *          'new line' i.e '\r\n' (hex 0x0D) or if the string has reached a length of
     *          @ref NUS_MAX_DATA_LENGTH.
     */
    void uart_event_handle(app_uart_evt_t * p_event)
    {
        static uint8_t data_array[BLE_NUS_MAX_DATA_LEN];
        static uint8_t index = 0;
    
        switch (p_event->evt_type)
        {
            /**@snippet [Handling data from UART] */
            case APP_UART_DATA_READY:
                UNUSED_VARIABLE(app_uart_get(&data_array[index]));
                index++;
    
                if ((data_array[index - 1] == '\n') || (index >= (BLE_NUS_MAX_DATA_LEN)))
                {
                    while (ble_nus_c_string_send(&m_ble_nus_c, data_array, index) != NRF_SUCCESS)
                    {
                        // repeat until sent.
                    }
                    index = 0;
                }
                break;
            /**@snippet [Handling data from UART] */
            case APP_UART_COMMUNICATION_ERROR:
                APP_ERROR_HANDLER(p_event->data.error_communication);
                break;
    
            case APP_UART_FIFO_ERROR:
                APP_ERROR_HANDLER(p_event->data.error_code);
                break;
    
            default:
                break;
        }
    }
    
    /**
     * @brief Parameters used when scanning.
     */
    static const ble_gap_scan_params_t m_scan_params =
    {
        .active   = 1,
        .interval = SCAN_INTERVAL,
        .window   = SCAN_WINDOW,
        .timeout  = SCAN_TIMEOUT,
        #if (NRF_SD_BLE_API_VERSION == 2)
            .selective   = 0,
            .p_whitelist = NULL,
        #endif
        #if (NRF_SD_BLE_API_VERSION == 3)
            .use_whitelist = 0,
        #endif
    };
    
    static void scan_start(void)
    {
        ret_code_t ret;
    
        ret = sd_ble_gap_scan_start(&m_scan_params);
        APP_ERROR_CHECK(ret);
    
        ret = bsp_indication_set(BSP_INDICATE_SCANNING);
        APP_ERROR_CHECK(ret);
    }
    
    
    
    /**@brief Callback handling NUS Client events.
     *
     * @details This function is called to notify the application of NUS client events.
     *
     * @param[in]   p_ble_nus_c   NUS Client Handle. This identifies the NUS client
     * @param[in]   p_ble_nus_evt Pointer to the NUS Client event.
     */
    
    /**@snippet [Handling events from the ble_nus_c module] */
    static void ble_nus_c_evt_handler(ble_nus_c_t * p_ble_nus_c, const ble_nus_c_evt_t * p_ble_nus_evt)
    {
        uint32_t err_code;
        switch (p_ble_nus_evt->evt_type)
        {
            case BLE_NUS_C_EVT_DISCOVERY_COMPLETE:
                err_code = ble_nus_c_handles_assign(p_ble_nus_c, p_ble_nus_evt->conn_handle, &p_ble_nus_evt->handles);
                APP_ERROR_CHECK(err_code);
    
                err_code = ble_nus_c_rx_notif_enable(p_ble_nus_c);
                APP_ERROR_CHECK(err_code);
                printf("The device has the Nordic UART Service\r\n");
                break;
    
            case BLE_NUS_C_EVT_NUS_RX_EVT:
                for (uint32_t i = 0; i < p_ble_nus_evt->data_len; i++)
                {
                    while (app_uart_put( p_ble_nus_evt->p_data[i]) != NRF_SUCCESS);
                }
                break;
    
            case BLE_NUS_C_EVT_DISCONNECTED:
                printf("Disconnected\r\n");
                scan_start();
                break;
        }
    }
    
    
    /**@brief Reads an advertising report and checks if a uuid is present in the service list.
     *
     * @details The function is able to search for 16-bit, 32-bit and 128-bit service uuids.
     *          To see the format of a advertisement packet, see
     *          https://www.bluetooth.org/Technical/AssignedNumbers/generic_access_profile.htm
     *
     * @param[in]   p_target_uuid The uuid to search fir
     * @param[in]   p_adv_report  Pointer to the advertisement report.
     *
     * @retval      true if the UUID is present in the advertisement report. Otherwise false
     */
    static bool is_uuid_present(const ble_uuid_t *p_target_uuid,
                                const ble_gap_evt_adv_report_t *p_adv_report)
    {
        uint32_t err_code;
        uint32_t index = 0;
        uint8_t *p_data = (uint8_t *)p_adv_report->data;
        ble_uuid_t extracted_uuid;
    
        while (index < p_adv_report->dlen)
        {
            uint8_t field_length = p_data[index];
            uint8_t field_type   = p_data[index + 1];
    
            if ( (field_type == BLE_GAP_AD_TYPE_16BIT_SERVICE_UUID_MORE_AVAILABLE)
               || (field_type == BLE_GAP_AD_TYPE_16BIT_SERVICE_UUID_COMPLETE)
               )
            {
                for (uint32_t u_index = 0; u_index < (field_length / UUID16_SIZE); u_index++)
                {
                    err_code = sd_ble_uuid_decode(  UUID16_SIZE,
                                                    &p_data[u_index * UUID16_SIZE + index + 2],
                                                    &extracted_uuid);
                    if (err_code == NRF_SUCCESS)
                    {
                        if ((extracted_uuid.uuid == p_target_uuid->uuid)
                            && (extracted_uuid.type == p_target_uuid->type))
                        {
                            return true;
                        }
                    }
                }
            }
    
            else if ( (field_type == BLE_GAP_AD_TYPE_32BIT_SERVICE_UUID_MORE_AVAILABLE)
                    || (field_type == BLE_GAP_AD_TYPE_32BIT_SERVICE_UUID_COMPLETE)
                    )
            {
                for (uint32_t u_index = 0; u_index < (field_length / UUID32_SIZE); u_index++)
                {
                    err_code = sd_ble_uuid_decode(UUID16_SIZE,
                    &p_data[u_index * UUID32_SIZE + index + 2],
                    &extracted_uuid);
                    if (err_code == NRF_SUCCESS)
                    {
                        if ((extracted_uuid.uuid == p_target_uuid->uuid)
                            && (extracted_uuid.type == p_target_uuid->type))
                        {
                            return true;
                        }
                    }
                }
            }
    
            else if ( (field_type == BLE_GAP_AD_TYPE_128BIT_SERVICE_UUID_MORE_AVAILABLE)
                    || (field_type == BLE_GAP_AD_TYPE_128BIT_SERVICE_UUID_COMPLETE)
                    )
            {
                err_code = sd_ble_uuid_decode(UUID128_SIZE,
                                              &p_data[index + 2],
                                              &extracted_uuid);
                if (err_code == NRF_SUCCESS)
                {
                    if ((extracted_uuid.uuid == p_target_uuid->uuid)
                        && (extracted_uuid.type == p_target_uuid->type))
                    {
                        return true;
                    }
                }
            }
            index += field_length + 1;
        }
        return false;
    }
    
    
    /**@brief Function for initializing the NUS Client.
     */
    static void nus_c_init(void)
    {
        uint32_t         err_code;
        ble_nus_c_init_t nus_c_init_t;
    
        nus_c_init_t.evt_handler = ble_nus_c_evt_handler;
    
        err_code = ble_nus_c_init(&m_ble_nus_c, &nus_c_init_t);
        APP_ERROR_CHECK(err_code);
    }
    
    
    /** @brief Function for initializing the Database Discovery Module.
     */
    static void db_discovery_init(void)
    {
        uint32_t err_code = ble_db_discovery_init(db_disc_handler);
        APP_ERROR_CHECK(err_code);
    }
    
    
    /**@brief Function for the Timer initialization.
     *
     * @details Initializes the timer module. This creates and starts application timers.
     */
    static void timers_init(void)
    {
    //    uint32_t err_code;
    
        // Initialize timer module.
        APP_TIMER_INIT(APP_TIMER_PRESCALER, APP_TIMER_OP_QUEUE_SIZE, false);
    
        // Create timers.
       /* err_code = app_timer_create(&m_battery_timer_id,
                                    APP_TIMER_MODE_REPEATED,
                                    battery_level_meas_timeout_handler);
        APP_ERROR_CHECK(err_code);
    
        err_code = app_timer_create(&m_heart_rate_timer_id,
                                    APP_TIMER_MODE_REPEATED,
                                    heart_rate_meas_timeout_handler);
        APP_ERROR_CHECK(err_code);
    
        err_code = app_timer_create(&m_rr_interval_timer_id,
                                    APP_TIMER_MODE_REPEATED,
                                    rr_interval_timeout_handler);
        APP_ERROR_CHECK(err_code);
    
        err_code = app_timer_create(&m_sensor_contact_timer_id,
                                    APP_TIMER_MODE_REPEATED,
                                    sensor_contact_detected_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);
    
        err_code = sd_ble_gap_appearance_set(BLE_APPEARANCE_HEART_RATE_SENSOR_HEART_RATE_BELT);
        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);
    }
    
    
    #ifdef BLE_DFU_APP_SUPPORT
    /**@brief Function for stopping advertising.
     */
    static void advertising_stop(void)
    {
        uint32_t err_code;
    
        err_code = sd_ble_gap_adv_stop();
        APP_ERROR_CHECK(err_code);
    
        err_code = bsp_indication_set(BSP_INDICATE_IDLE);
        APP_ERROR_CHECK(err_code);
    }
    
    
    /**@brief Function for loading application-specific context after establishing a secure connection.
     *
     * @details This function will load the application context and check if the ATT table is marked as
     *          changed. If the ATT table is marked as changed, a Service Changed Indication
     *          is sent to the peer if the Service Changed CCCD is set to indicate.
     *
     * @param[in] p_handle The Device Manager handle that identifies the connection for which the context
     *                     should be loaded.
     */
    static void app_context_load(dm_handle_t const * p_handle)
    {
        uint32_t                 err_code;
        static uint32_t          context_data;
        dm_application_context_t context;
    
        context.len    = sizeof(context_data);
        context.p_data = (uint8_t *)&context_data;
    
        err_code = dm_application_context_get(p_handle, &context);
        if (err_code == NRF_SUCCESS)
        {
            // Send Service Changed Indication if ATT table has changed.
            if ((context_data & (DFU_APP_ATT_TABLE_CHANGED << DFU_APP_ATT_TABLE_POS)) != 0)
            {
                err_code = sd_ble_gatts_service_changed(m_conn_handle, APP_SERVICE_HANDLE_START, BLE_HANDLE_MAX);
                if ((err_code != NRF_SUCCESS) &&
                    (err_code != BLE_ERROR_INVALID_CONN_HANDLE) &&
                    (err_code != NRF_ERROR_INVALID_STATE) &&
                    (err_code != BLE_ERROR_NO_TX_PACKETS) &&
                    (err_code != NRF_ERROR_BUSY) &&
                    (err_code != BLE_ERROR_GATTS_SYS_ATTR_MISSING))
                {
                    APP_ERROR_HANDLER(err_code);
                }
            }
    
            err_code = dm_application_context_delete(p_handle);
            APP_ERROR_CHECK(err_code);
        }
        else if (err_code == DM_NO_APP_CONTEXT)
        {
            // No context available. Ignore.
        }
        else
        {
            APP_ERROR_HANDLER(err_code);
        }
    }
    
    
    /** @snippet [DFU BLE Reset prepare] */
    /**@brief Function for preparing for system reset.
     *
     * @details This function implements @ref dfu_app_reset_prepare_t. It will be called by
     *          @ref dfu_app_handler.c before entering the bootloader/DFU.
     *          This allows the current running application to shut down gracefully.
     */
    static void reset_prepare(void)
    {
        uint32_t err_code;
    
        if (m_conn_handle != BLE_CONN_HANDLE_INVALID)
        {
            // Disconnect from peer.
            err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
            APP_ERROR_CHECK(err_code);
            err_code = bsp_indication_set(BSP_INDICATE_IDLE);
            APP_ERROR_CHECK(err_code);
        }
        else
        {
            // If not connected, the device will be advertising. Hence stop the advertising.
            advertising_stop();
        }
    
        err_code = ble_conn_params_stop();
        APP_ERROR_CHECK(err_code);
    
        nrf_delay_ms(500);
    }
    /** @snippet [DFU BLE Reset prepare] */
    #endif // BLE_DFU_APP_SUPPORT
    
    
    /**@brief Function for initializing services that will be used by the application.
     *
     * @details Initialize the Heart Rate, Battery and Device Information services.
     */
    static void services_init(void)
    {
        uint32_t       err_code;
       
    
    
      
      
    #ifdef BLE_DFU_APP_SUPPORT
        /** @snippet [DFU BLE Service initialization] */
        ble_dfu_init_t   dfus_init;
    
        // Initialize the Device Firmware Update Service.
        memset(&dfus_init, 0, sizeof(dfus_init));
    
        dfus_init.evt_handler   = dfu_app_on_dfu_evt;
        dfus_init.error_handler = NULL;
        dfus_init.evt_handler   = dfu_app_on_dfu_evt;
        dfus_init.revision      = DFU_REVISION;
    
        err_code = ble_dfu_init(&m_dfus, &dfus_init);
        APP_ERROR_CHECK(err_code);
    
        dfu_app_reset_prepare_set(reset_prepare);
        //dfu_app_dm_appl_instance_set(m_app_handle); //pemy
        /** @snippet [DFU BLE Service initialization] */
    #endif // BLE_DFU_APP_SUPPORT
    }
    
    
    /**@brief Function for initializing the sensor simulators.
     
    static void sensor_simulator_init(void)
    {
        m_battery_sim_cfg.min          = MIN_BATTERY_LEVEL;
        m_battery_sim_cfg.max          = MAX_BATTERY_LEVEL;
        m_battery_sim_cfg.incr         = BATTERY_LEVEL_INCREMENT;
        m_battery_sim_cfg.start_at_max = true;
    
        sensorsim_init(&m_battery_sim_state, &m_battery_sim_cfg);
    
        m_heart_rate_sim_cfg.min          = MIN_HEART_RATE;
        m_heart_rate_sim_cfg.max          = MAX_HEART_RATE;
        m_heart_rate_sim_cfg.incr         = HEART_RATE_INCREMENT;
        m_heart_rate_sim_cfg.start_at_max = false;
    
        sensorsim_init(&m_heart_rate_sim_state, &m_heart_rate_sim_cfg);
    
        m_rr_interval_sim_cfg.min          = MIN_RR_INTERVAL;
        m_rr_interval_sim_cfg.max          = MAX_RR_INTERVAL;
        m_rr_interval_sim_cfg.incr         = RR_INTERVAL_INCREMENT;
        m_rr_interval_sim_cfg.start_at_max = false;
    
        sensorsim_init(&m_rr_interval_sim_state, &m_rr_interval_sim_cfg);
    }*/
    
    
    /**@brief Function for starting application timers.
     */
    static void application_timers_start(void)
    {
        /*uint32_t err_code;
    
        // Start application timers.
        err_code = app_timer_start(m_battery_timer_id, BATTERY_LEVEL_MEAS_INTERVAL, NULL);
        APP_ERROR_CHECK(err_code);
    
        err_code = app_timer_start(m_heart_rate_timer_id, HEART_RATE_MEAS_INTERVAL, NULL);
        APP_ERROR_CHECK(err_code);
    
        err_code = app_timer_start(m_rr_interval_timer_id, RR_INTERVAL_INTERVAL, NULL);
        APP_ERROR_CHECK(err_code);
    
        err_code = app_timer_start(m_sensor_contact_timer_id, SENSOR_CONTACT_DETECTED_INTERVAL, NULL);
        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    = m_hrs.hrm_handles.cccd_handle;
        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 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 initializing the UART.
     */
    static void uart_init(void)
    {
        uint32_t err_code;
    
        const app_uart_comm_params_t comm_params =
          {
            .rx_pin_no    = RX_PIN_NUMBER,
            .tx_pin_no    = TX_PIN_NUMBER,
            .rts_pin_no   = RTS_PIN_NUMBER,
            .cts_pin_no   = CTS_PIN_NUMBER,
            .flow_control = APP_UART_FLOW_CONTROL_ENABLED,
            .use_parity   = false,
            .baud_rate    = UART_BAUDRATE_BAUDRATE_Baud115200
          };
    
        APP_UART_FIFO_INIT(&comm_params,
                            UART_RX_BUF_SIZE,
                            UART_TX_BUF_SIZE,
                            uart_event_handle,
                            APP_IRQ_PRIORITY_LOWEST,
                            err_code);
    
        APP_ERROR_CHECK(err_code);
    }
    
    /**@brief Function for handling the Application's BLE Stack events.
     *
     * @param[in] p_ble_evt  Bluetooth stack event.
     */
    /*static void on_ble_evt(ble_evt_t * p_ble_evt)
    {
        uint32_t err_code;
    
        switch (p_ble_evt->header.evt_id)
                {
            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;
    
            case BLE_GAP_EVT_DISCONNECTED:
                m_conn_handle = BLE_CONN_HANDLE_INVALID;
                break;
    
            default:
                // No implementation needed.
                break;
        }
    }*/
    
    
    static void on_ble_evt(ble_evt_t * p_ble_evt)
    {
        uint32_t              err_code;
        const ble_gap_evt_t * p_gap_evt = &p_ble_evt->evt.gap_evt;
    
        switch (p_ble_evt->header.evt_id)
        {
            case BLE_GAP_EVT_ADV_REPORT:
            {
                const ble_gap_evt_adv_report_t * p_adv_report = &p_gap_evt->params.adv_report;
    
                if (is_uuid_present(&m_nus_uuid, p_adv_report))
                {
    
                    err_code = sd_ble_gap_connect(&p_adv_report->peer_addr,
                                                  &m_scan_params,
                                                  &m_connection_param);
    
                    if (err_code == NRF_SUCCESS)
                    {
                        // scan is automatically stopped by the connect
                        err_code = bsp_indication_set(BSP_INDICATE_IDLE);
                        APP_ERROR_CHECK(err_code);
                        printf("Connecting to target %02x%02x%02x%02x%02x%02x\r\n",
                                 p_adv_report->peer_addr.addr[0],
                                 p_adv_report->peer_addr.addr[1],
                                 p_adv_report->peer_addr.addr[2],
                                 p_adv_report->peer_addr.addr[3],
                                 p_adv_report->peer_addr.addr[4],
                                 p_adv_report->peer_addr.addr[5]
                                 );
                    }
                }
            }break; // BLE_GAP_EVT_ADV_REPORT
    
            case BLE_GAP_EVT_CONNECTED:
                //NRF_LOG_DEBUG("Connected to target\r\n");
                err_code = bsp_indication_set(BSP_INDICATE_CONNECTED);
                APP_ERROR_CHECK(err_code);
    
                // start discovery of services. The NUS Client waits for a discovery result
                err_code = ble_db_discovery_start(&m_ble_db_discovery, p_ble_evt->evt.gap_evt.conn_handle);
                APP_ERROR_CHECK(err_code);
                break; // BLE_GAP_EVT_CONNECTED
    
            case BLE_GAP_EVT_TIMEOUT:
                if (p_gap_evt->params.timeout.src == BLE_GAP_TIMEOUT_SRC_SCAN)
                {
                    //NRF_LOG_DEBUG("Scan timed out.\r\n");
                    scan_start();
                }
                else if (p_gap_evt->params.timeout.src == BLE_GAP_TIMEOUT_SRC_CONN)
                {
                    printf("Connection Request timed out.\r\n");
                }
                break; // BLE_GAP_EVT_TIMEOUT
    
            case BLE_GAP_EVT_SEC_PARAMS_REQUEST:
                // Pairing not supported
                err_code = sd_ble_gap_sec_params_reply(p_ble_evt->evt.gap_evt.conn_handle, BLE_GAP_SEC_STATUS_PAIRING_NOT_SUPP, NULL, NULL);
                APP_ERROR_CHECK(err_code);
                break; // BLE_GAP_EVT_SEC_PARAMS_REQUEST
    
            case BLE_GAP_EVT_CONN_PARAM_UPDATE_REQUEST:
                // Accepting parameters requested by peer.
                err_code = sd_ble_gap_conn_param_update(p_gap_evt->conn_handle,
                                                        &p_gap_evt->params.conn_param_update_request.conn_params);
                APP_ERROR_CHECK(err_code);
                break; // BLE_GAP_EVT_CONN_PARAM_UPDATE_REQUEST
    
            case BLE_GATTC_EVT_TIMEOUT:
                // Disconnect on GATT Client timeout event.
                //NRF_LOG_DEBUG("GATT Client Timeout.\r\n");
                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; // BLE_GATTC_EVT_TIMEOUT
    
            case BLE_GATTS_EVT_TIMEOUT:
                // Disconnect on GATT Server timeout event.
                //NRF_LOG_DEBUG("GATT Server Timeout.\r\n");
                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; // BLE_GATTS_EVT_TIMEOUT
    
    #if (NRF_SD_BLE_API_VERSION == 3)
            case BLE_GATTS_EVT_EXCHANGE_MTU_REQUEST:
                err_code = sd_ble_gatts_exchange_mtu_reply(p_ble_evt->evt.gatts_evt.conn_handle,
                                                           NRF_BLE_MAX_MTU_SIZE);
                APP_ERROR_CHECK(err_code);
                break; // BLE_GATTS_EVT_EXCHANGE_MTU_REQUEST
    #endif
    
            default:
                break;
        }
    }
    
    /**@brief Function for dispatching a BLE stack event to all modules with a BLE stack event handler.
     *
     * @details This function is called from the BLE Stack event interrupt handler after a BLE stack
     *          event has been received.
     *
     * @param[in] p_ble_evt  Bluetooth stack event.
     */
    static void ble_evt_dispatch(ble_evt_t * p_ble_evt)
    {
        dm_ble_evt_handler(p_ble_evt); //pemy
       
        ble_conn_params_on_ble_evt(p_ble_evt);
        bsp_btn_ble_on_ble_evt(p_ble_evt);
    #ifdef BLE_DFU_APP_SUPPORT
        /** @snippet [Propagating BLE Stack events to DFU Service] */
        ble_dfu_on_ble_evt(&m_dfus, p_ble_evt);
        /** @snippet [Propagating BLE Stack events to DFU Service] */
    #endif // BLE_DFU_APP_SUPPORT
        on_ble_evt(p_ble_evt);
        ble_advertising_on_ble_evt(p_ble_evt);
    	  ble_db_discovery_on_ble_evt(&m_ble_db_discovery, p_ble_evt);
        ble_nus_c_on_ble_evt(&m_ble_nus_c,p_ble_evt);
    }
    
    
    
    /**@brief Function for dispatching a system event to interested modules.
     *
     * @details This function is called from the System event interrupt handler after a system
     *          event has been received.
     *
     * @param[in] sys_evt  System stack event.
     */
    static void sys_evt_dispatch(uint32_t sys_evt)
    {
        pstorage_sys_event_handler(sys_evt);
        ble_advertising_on_sys_evt(sys_evt);
    }
    
    
    /**@brief Function for initializing the BLE stack.
     *
     * @details Initializes the SoftDevice and the BLE event interrupt.
     */
    static void ble_stack_init(void)
    {
        uint32_t err_code;
        
        nrf_clock_lf_cfg_t clock_lf_cfg = NRF_CLOCK_LFCLKSRC;
        
        // Initialize the SoftDevice handler module.	
        SOFTDEVICE_HANDLER_INIT(&clock_lf_cfg, NULL);
    
        ble_enable_params_t ble_enable_params;
        err_code = softdevice_enable_get_default_config(CENTRAL_LINK_COUNT,
                                                        PERIPHERAL_LINK_COUNT,
                                                        &ble_enable_params);
        APP_ERROR_CHECK(err_code);
    
    #ifdef BLE_DFU_APP_SUPPORT
        ble_enable_params.gatts_enable_params.service_changed = 1;
    #endif // BLE_DFU_APP_SUPPORT
        //Check the ram settings against the used number of links
        CHECK_RAM_START_ADDR(CENTRAL_LINK_COUNT,PERIPHERAL_LINK_COUNT);
    
        // Enable BLE stack.
        err_code = softdevice_enable(&ble_enable_params);
        APP_ERROR_CHECK(err_code);
    
        // Register with the SoftDevice handler module for BLE events.
        err_code = softdevice_ble_evt_handler_set(ble_evt_dispatch);
        APP_ERROR_CHECK(err_code);
    
        // Register with the SoftDevice handler module for BLE events.
        err_code = softdevice_sys_evt_handler_set(sys_evt_dispatch);
        APP_ERROR_CHECK(err_code);
    }
    
    
    /**@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 BSP_EVENT_SLEEP:
                sleep_mode_enter();
                break;
    
            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;
    
            case BSP_EVENT_WHITELIST_OFF:
                err_code = ble_advertising_restart_without_whitelist();
                if (err_code != NRF_ERROR_INVALID_STATE)
                {
                    APP_ERROR_CHECK(err_code);
                }
                break;
    
            default:
                break;
        }
    }
    
    
    /**@brief Function for handling the Device Manager events.
     *
     * @param[in] p_evt  Data associated to the device manager event.
     */
    static uint32_t device_manager_evt_handler(dm_handle_t const * p_handle,
                                               dm_event_t const  * p_event,
                                               ret_code_t        event_result)
    {
        APP_ERROR_CHECK(event_result);
    
    #ifdef BLE_DFU_APP_SUPPORT
        if (p_event->event_id == DM_EVT_LINK_SECURED)
        {
            app_context_load(p_handle);
        }
    #endif // BLE_DFU_APP_SUPPORT
    
        return NRF_SUCCESS;
    }
    
    
    /**@brief Function for the Device Manager initialization.
     *
     * @param[in] erase_bonds  Indicates whether bonding information should be cleared from
     *                         persistent storage during initialization of the Device Manager.
     */
    static void device_manager_init(bool erase_bonds)
    {
        uint32_t               err_code;
        dm_init_param_t        init_param = {.clear_persistent_data = erase_bonds};
        dm_application_param_t register_param;
    
        // Initialize persistent storage module.
        err_code = pstorage_init();
        APP_ERROR_CHECK(err_code);
    
        err_code = dm_init(&init_param);
        APP_ERROR_CHECK(err_code);
    
        memset(&register_param.sec_param, 0, sizeof(ble_gap_sec_params_t));
    
        register_param.sec_param.bond         = SEC_PARAM_BOND;
        register_param.sec_param.mitm         = SEC_PARAM_MITM;
        register_param.sec_param.lesc         = SEC_PARAM_LESC;
        register_param.sec_param.keypress     = SEC_PARAM_KEYPRESS;
        register_param.sec_param.io_caps      = SEC_PARAM_IO_CAPABILITIES;
        register_param.sec_param.oob          = SEC_PARAM_OOB;
        register_param.sec_param.min_key_size = SEC_PARAM_MIN_KEY_SIZE;
        register_param.sec_param.max_key_size = SEC_PARAM_MAX_KEY_SIZE;
        register_param.evt_handler            = device_manager_evt_handler;
        register_param.service_type           = DM_PROTOCOL_CNTXT_GATT_SRVR_ID;
    
        err_code = dm_register(&m_app_handle, &register_param);
        APP_ERROR_CHECK(err_code);
    }
    
    
    /**@brief Function for initializing the Advertising functionality.
     */
    static void advertising_init(void)
    {
        uint32_t      err_code;
        ble_advdata_t advdata;
    
        // Build advertising data struct to pass into @ref ble_advertising_init.
        memset(&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;
        advdata.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);
        advdata.uuids_complete.p_uuids  = m_adv_uuids;
    
        ble_adv_modes_config_t options = {0};
        options.ble_adv_fast_enabled  = BLE_ADV_FAST_ENABLED;
        options.ble_adv_fast_interval = APP_ADV_INTERVAL;
        options.ble_adv_fast_timeout  = APP_ADV_TIMEOUT_IN_SECONDS;
    
        err_code = ble_advertising_init(&advdata, NULL, &options, on_adv_evt, NULL);
        APP_ERROR_CHECK(err_code);
    }
    
    
    /**@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(void)
    {
        bsp_event_t startup_event;
    
        uint32_t err_code = bsp_init(BSP_INIT_LED | BSP_INIT_BUTTONS,
                                     APP_TIMER_TICKS(100, APP_TIMER_PRESCALER),
                                     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 power_manage(void)
    {
        uint32_t err_code = sd_app_evt_wait();
        APP_ERROR_CHECK(err_code);
    }
    
    
    /**@brief Function for application main entry.
     */
    int main(void)
    {
        uint32_t err_code;
        bool erase_bonds;
    
        // Initialize.
    
        app_trace_init();
        timers_init();
    	 
        buttons_leds_init();
    	  db_discovery_init();
        ble_stack_init();
    	   
        device_manager_init(erase_bonds); //pemy
    	  uart_init();
        gap_params_init();
        advertising_init();
    	  services_init();
    	  nus_c_init();
    	  //
       
       // sensor_simulator_init();
        conn_params_init();
    
        // Start execution.
        application_timers_start();
        err_code = ble_advertising_start(BLE_ADV_MODE_FAST);
        APP_ERROR_CHECK(err_code);
    
        // Enter main loop.
        for (;;)
        {
            power_manage();
        }
    }
    
    

    I am just want to take beacon data by scanner simple using sdk11 /experimental scanner hrs as base.

  • yes, I see. But beacon_scanner.c isn't included in the project that you sent. I would like to see how you have included and initialized/started the scanning for beacons.

    BR,

    Edvin

  • ok I have  attached the code please copy the project folder in \nRF5_SDK_11.0.0_89\examples\ble_peripheral\ble_app_hrsfolder .I just copied beacon_scanner.c(scanner_beacon.c) file in my folder and added to application.

    pca10028.rar

    hope this help you.

  • A bit, but this folder doesn't include the main.c file. Can you zip the ble_app_hrs folder?

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