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NRF52840 dongle running blinky connects with nRF connect app but wont pair to native Android Bluetooth utility

I'm running the unmodified blinky example on the 52840 dongle PCA10059 and it connects just fine with the nrf connect app but will not pair with the phone via the Android native "Pair new device" dialog. It's advertising but clicking on the "Nordic_Blinky" advertisement does nothing.  I have a custom app that I'm trying to connect to the dongle and it doesn't connect either. What am I missing here?

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  • What I've done is take the blinky example and added a custom service and the CLI capability, so ideally I'd like to add the pairing/bonding stuff to my current code base rather than start over with an example that supports paring, such as HRS.

    Here's what I have done: I compiled and ran the HRS example (which does support the 10059) without modification was able to pair to that. I then looked through the HRS main.c to see what is different in the ble event handling. I made the following changes to my (working) code base: 

    - added peer_manager_init, delete_bonds, pm_evt_handler (straight from the HRS example)

    - added the call to peer_manager_init() in main

    - swapped the advertising_init function from the blinky one to the HRS one and added the call to BLE_ADVERTISING_DEF.

    - initialized the DIS in services_init (don't know if this is necessary)

    - modified the custom service init routine to add permissions

    Alas, I'm now getting a crash when I attempt to connect to the device using the native Android mechanism. Another symptom is that the software crashes if I don't "Enable CCCD's" in nrf connect and try to run the custom service. Code embedded, please advise.

    /* This code belongs in ble_cus.c*/
    #include "sdk_common.h"
    #include "ble_srv_common.h"
    #include "ble_cus.h"
    #include <string.h>
    #include "nrf_gpio.h"
    #include "boards.h"
    #include "nrf_log.h"
    
    //apdobaj define for custom characterisic value size
    #define CUSTOM_SVC_CHAR_VAL_SIZE 20 //in bytes
    #define ON_WRITE_LED BSP_BOARD_LED_2
    
    /**@brief Function for initializing the Custom Service.
     *
     * @param[out]  p_cus       Custom Service structure. This structure will have to be supplied by
     *                          the application. It will be initialized by this function, and will later
     *                          be used to identify this particular service instance.
     * @param[in]   p_cus_init  Information needed to initialize the service.
     *
     * @return      NRF_SUCCESS on successful initialization of service, otherwise an error code.
     */
    uint32_t ble_cus_init(ble_cus_t * p_cus, const ble_cus_init_t * p_cus_init);
    
    //apdobaj change custom_value to pointer to accommodate larger packet sizes
    uint32_t ble_cus_custom_value_update(ble_cus_t * p_cus, uint8_t custom_value)
    //uint32_t ble_cus_custom_value_update(ble_cus_t * p_cus, uint8_t *custom_value)
    {
        NRF_LOG_INFO("In ble_cus_custom_value_update. \r\n"); 
        if (p_cus == NULL)
        {
            return NRF_ERROR_NULL;
        }
    
        uint32_t err_code = NRF_SUCCESS;
        ble_gatts_value_t gatts_value;
    
        // Initialize value struct.
        memset(&gatts_value, 0, sizeof(gatts_value));
    
        gatts_value.len     = sizeof(uint8_t);
        //gatts_value.len     = CUSTOM_SVC_CHAR_VAL_SIZE;
        gatts_value.offset  = 0;
        gatts_value.p_value = &custom_value;
        //gatts_value.p_value = custom_value;
    
        // Update database.
        err_code = sd_ble_gatts_value_set(p_cus->conn_handle,
                                          p_cus->custom_value_handles.value_handle,
                                          &gatts_value);
        if (err_code != NRF_SUCCESS)
        {
            return err_code;
        }
    
        // Send value if connected and notifying.
        if ((p_cus->conn_handle != BLE_CONN_HANDLE_INVALID)) 
        {
            ble_gatts_hvx_params_t hvx_params;
    
            memset(&hvx_params, 0, sizeof(hvx_params));
    
            hvx_params.handle = p_cus->custom_value_handles.value_handle;
            hvx_params.type   = BLE_GATT_HVX_NOTIFICATION;
            hvx_params.offset = gatts_value.offset;
            hvx_params.p_len  = &gatts_value.len;
            hvx_params.p_data = gatts_value.p_value;
    
            err_code = sd_ble_gatts_hvx(p_cus->conn_handle, &hvx_params);
        }
        else
        {
            err_code = NRF_ERROR_INVALID_STATE;
        }
    
    
        return err_code;
    }
    
    
    static uint32_t custom_value_char_add(ble_cus_t * p_cus, const ble_cus_init_t * p_cus_init, uint16_t uuid)
    {
        uint32_t            err_code;
        ble_gatts_char_md_t char_md;
        ble_gatts_attr_md_t cccd_md;
        ble_gatts_attr_t    attr_char_value;
        ble_uuid_t          ble_uuid;
        ble_gatts_attr_md_t attr_md;
    
        memset(&char_md, 0, sizeof(char_md));
        //apdobaj alter some values to get pairing/bonding to work
    
        char_md.char_props.read   = 1;
        char_md.char_props.write  = 1;
        //char_md.char_props.notify = 0; 
        char_md.char_props.notify = 1; 
        char_md.p_char_user_desc  = NULL;
        char_md.p_char_pf         = NULL;
        char_md.p_user_desc_md    = NULL;
        char_md.p_cccd_md         = NULL; 
        char_md.p_sccd_md         = NULL;
    		
        memset(&attr_md, 0, sizeof(attr_md));
    
        attr_md.read_perm  = p_cus_init->custom_value_char_attr_md.read_perm;
        attr_md.write_perm = p_cus_init->custom_value_char_attr_md.write_perm;
        attr_md.vloc       = BLE_GATTS_VLOC_STACK;
        //attr_md.rd_auth    = 0;
        attr_md.rd_auth    = 1;
        //attr_md.wr_auth    = 0;
        attr_md.wr_auth    = 1;
        //attr_md.vlen       = 0;
        attr_md.vlen       = 1;
    
        ble_uuid.type = p_cus->uuid_type;
        //ble_uuid.uuid = CUSTOM_VALUE_CHAR_UUID;
        ble_uuid.uuid = uuid;
    
        memset(&attr_char_value, 0, sizeof(attr_char_value));
    
        attr_char_value.p_uuid    = &ble_uuid;
        attr_char_value.p_attr_md = &attr_md;
        //apdobaj change init len
        attr_char_value.init_len  = sizeof(uint8_t);
        //attr_char_value.init_len  = CUSTOM_SVC_CHAR_VAL_SIZE;
        attr_char_value.init_offs = 0;
        //apdobaj change max_len
        attr_char_value.max_len   = sizeof(uint8_t);
        //attr_char_value.max_len   = CUSTOM_SVC_CHAR_VAL_SIZE;
    
        memset(&cccd_md, 0, sizeof(cccd_md));
    
        //  Read  operation on Cccd should be possible without authentication.
        BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.read_perm);
        BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.write_perm);
        
        cccd_md.vloc       = BLE_GATTS_VLOC_STACK;
    
        char_md.char_props.notify = 1;  
        char_md.p_cccd_md         = &cccd_md; 
    
        err_code = sd_ble_gatts_characteristic_add(p_cus->service_handle, &char_md,
                                                   &attr_char_value,
                                                   &p_cus->custom_value_handles);
        if (err_code != NRF_SUCCESS)
        {
            return err_code;
        }
    
        return NRF_SUCCESS;
    }
    
    uint32_t ble_cus_init(ble_cus_t * p_cus, const ble_cus_init_t * p_cus_init)
    {
        if (p_cus == NULL || p_cus_init == NULL)
        {
            return NRF_ERROR_NULL;
        }
    
        uint32_t   err_code;
        ble_uuid_t ble_uuid;
        uint16_t   cus_char_uuid;
    
        // Initialize service structure
        p_cus->evt_handler               = p_cus_init->evt_handler;
        p_cus->conn_handle               = BLE_CONN_HANDLE_INVALID;
    
        //apdobaj try to fix the crash when pairing
        p_cus->uuid_type = 2;
    
        // Add Custom Service UUID
        ble_uuid128_t base_uuid = {CUSTOM_SERVICE_UUID_BASE};
        err_code =  sd_ble_uuid_vs_add(&base_uuid, &p_cus->uuid_type);
        VERIFY_SUCCESS(err_code);
        
        ble_uuid.type = p_cus->uuid_type;
        ble_uuid.uuid = CUSTOM_SERVICE_UUID;
    
        // Add the Custom Service
        err_code = sd_ble_gatts_service_add(BLE_GATTS_SRVC_TYPE_PRIMARY, &ble_uuid, &p_cus->service_handle);
        if (err_code != NRF_SUCCESS)
        {
            return err_code;
        }
    
        for (int i=0; i < 1; i++)
        {
            cus_char_uuid = CUSTOM_VALUE_CHAR_UUID+ i;
    
            // Add the Custom Characteristic 0
            err_code = custom_value_char_add(p_cus, p_cus_init, cus_char_uuid);
            if (err_code != NRF_SUCCESS)
            {
                return err_code;
            }
        }
    
        return err_code;
         //return custom_value_char_add(p_cus, p_cus_init, CUSTOM_VALUE_CHAR_UUID_1);
    }
    
    /**@brief Function for handling the Connect event.
     *
     * @param[in]   p_cus       Custom Service structure.
     * @param[in]   p_ble_evt   Event received from the BLE stack.
     */
    static void on_connect(ble_cus_t * p_cus, ble_evt_t const * p_ble_evt)
    {
        p_cus->conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
    
        ble_cus_evt_t evt;
    
        evt.evt_type = BLE_CUS_EVT_CONNECTED;
    
        p_cus->evt_handler(p_cus, &evt);
        
        //nrf_gpio_pin_toggle(LED_4);
    }
    
    /**@brief Function for handling the Disconnect event.
     *
     * @param[in]   p_cus       Custom Service structure.
     * @param[in]   p_ble_evt   Event received from the BLE stack.
     */
    static void on_disconnect(ble_cus_t * p_cus, ble_evt_t const * p_ble_evt)
    {
        UNUSED_PARAMETER(p_ble_evt);
        p_cus->conn_handle = BLE_CONN_HANDLE_INVALID;
        //nrf_gpio_pin_toggle(LED_4);
    }
    
    static void on_write(ble_cus_t * p_cus, ble_evt_t const * p_ble_evt)
    {
        ble_gatts_evt_write_t * p_evt_write = &p_ble_evt->evt.gatts_evt.params.write;
        //place what should happen on write here
        toggle_dongle_led(ON_WRITE_LED);
    
        // Custom Value Characteristic Written to.
        if (p_evt_write->handle == p_cus->custom_value_handles.value_handle)
        {
            //nrf_gpio_pin_toggle(LED_4);
           
        }
    
        // Check if the Custom value CCCD is written to and that the value is the appropriate length, i.e 2 bytes.
        if ((p_evt_write->handle == p_cus->custom_value_handles.cccd_handle)
            && (p_evt_write->len == 2)
           )
        {
    
            NRF_LOG_INFO("on_write: len %d, p_evt_write->data[0]: %d, p_evt_write->data[1]: %d.",
                         p_evt_write->len,
                         p_evt_write->data[0],
                         p_evt_write->data[1]);
    
            // CCCD written, call application event handler
            if (p_cus->evt_handler != NULL)
            {
                ble_cus_evt_t evt;
    
                if (ble_srv_is_notification_enabled(p_evt_write->data))
                {
                    evt.evt_type = BLE_CUS_EVT_NOTIFICATION_ENABLED;
                }
                else
                {
                    evt.evt_type = BLE_CUS_EVT_NOTIFICATION_DISABLED;
                }
                // Call the application event handler.
                p_cus->evt_handler(p_cus, &evt);
            }
        }
    
    }
    
    void ble_cus_on_ble_evt( ble_evt_t const * p_ble_evt, void * p_context)
    {
       ble_cus_t * p_cus = (ble_cus_t *) p_context;
    
       if (p_cus == NULL || p_ble_evt == NULL)
       {
           return;
       }
       
       switch (p_ble_evt->header.evt_id)
       {
           case BLE_GAP_EVT_CONNECTED:
               on_connect(p_cus, p_ble_evt);
               break;
    
           case BLE_GAP_EVT_DISCONNECTED:
               on_disconnect(p_cus, p_ble_evt);
               break;
           case BLE_GATTS_EVT_WRITE:
               on_write(p_cus, p_ble_evt);
               break;
           default:
               // No implementation needed.
               break;
       }
    }
    
    /**
     * Copyright (c) 2015 - 2019, Nordic Semiconductor ASA
     *
     * All rights reserved.
     *
     * Redistribution and use in source and binary forms, with or without modification,
     * are permitted provided that the following conditions are met:
     *
     * 1. Redistributions of source code must retain the above copyright notice, this
     *    list of conditions and the following disclaimer.
     *
     * 2. Redistributions in binary form, except as embedded into a Nordic
     *    Semiconductor ASA integrated circuit in a product or a software update for
     *    such product, must reproduce the above copyright notice, this list of
     *    conditions and the following disclaimer in the documentation and/or other
     *    materials provided with the distribution.
     *
     * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
     *    contributors may be used to endorse or promote products derived from this
     *    software without specific prior written permission.
     *
     * 4. This software, with or without modification, must only be used with a
     *    Nordic Semiconductor ASA integrated circuit.
     *
     * 5. Any software provided in binary form under this license must not be reverse
     *    engineered, decompiled, modified and/or disassembled.
     *
     * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
     * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
     * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
     * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
     * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
     * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     *
     */
    /**
     * @brief Blinky Sample Application main file.
     *
     * This file contains the source code for a sample server application using the LED Button service.
     */
    
    #include <stdint.h>
    #include <string.h>
    #include "nordic_common.h"
    #include "nrf.h"
    #include "app_error.h"
    #include "ble.h"
    #include "ble_err.h"
    #include "ble_hci.h"
    #include "ble_srv_common.h"
    #include "ble_advdata.h"
    #include "ble_conn_params.h"
    #include "nrf_sdh.h"
    #include "nrf_sdh_ble.h"
    #include "boards.h"
    #include "app_timer.h"
    #include "app_button.h"
    #include "ble_lbs.h"
    #include "nrf_ble_gatt.h"
    #include "nrf_ble_qwr.h"
    #include "nrf_pwr_mgmt.h"
    
    #include "nrf_log.h"
    #include "nrf_log_ctrl.h"
    #include "nrf_log_default_backends.h"
    
    //apdobaj includes for CLI
    #include <stdio.h>
    #include <stdbool.h>
    #include <stddef.h>
    
    #include "nrf_drv_clock.h"
    #include "nrf_gpio.h"
    #include "nrf_delay.h"
    
    #include "fds.h"
    #include "app_util.h"
    
    #include "nrf_cli.h"
    #include "nrf_cli_rtt.h"
    #include "nrf_cli_types.h"
    
    #include "nrf_log_backend_flash.h"
    #include "nrf_fstorage_nvmc.h"
    
    #include "nrf_mpu_lib.h"
    #include "nrf_stack_guard.h"
    //end includes for CLI
    //apdobaj includes for i2c
    #include "nrfx_twim.h"
    #include "sensor.h"
    #include "nrfx_gpiote.h"
    //apdobaj includes for custom service
    #include "ble_cus.h"
    //apdobaj includes for pairing/bonding
    #include "peer_manager.h"
    #include "peer_manager_handler.h"
    #include "ble_advdata.h"
    #include "ble_advertising.h"
    #include "ble_dis.h"
    
    /*LED color reference
    BSP_BOARD_LED_0  LED1_G
    BSP_BOARD_LED_1  LED2_R
    BSP_BOARD_LED_2  LED2_G
    BSP_BOARD_LED_3  LED2_B
    */
    
    //the BSP_BOARD_LED_X numbers are the index into the LED list in pca10059.h
    #define ADVERTISING_LED                 BSP_BOARD_LED_3                 /**< LED2_B Is on when device is advertising. */
    #define CONNECTED_LED                   BSP_BOARD_LED_2                 /**< LED2_G Is on when device has connected. */
    #define PLAY_PAUSE_LED                  BSP_BOARD_LED_1                            //LED1_G
    #define SENSOR_OK_LED                   BSP_BOARD_LED_3                            //LED2_B
    #define LEDBUTTON_LED                   BSP_BOARD_LED_2                         /**< LED to be toggled with the help of the LED Button Service. */
    #define LEDBUTTON_BUTTON                BSP_BUTTON_0                            /**< Button that will trigger the notification event with the LED Button Service */
    
    #define DEVICE_NAME                     "HGTP"                              /**< Name of device. Will be included in the advertising data. */
    #define MANUFACTURER_NAME               "AST"
    
    #define APP_BLE_OBSERVER_PRIO           3                                       /**< Application's BLE observer priority. You shouldn't need to modify this value. */
    #define APP_BLE_CONN_CFG_TAG            1                                       /**< A tag identifying the SoftDevice BLE configuration. */
    
    #define APP_ADV_INTERVAL                64                                      /**< The advertising interval (in units of 0.625 ms; this value corresponds to 40 ms). */
    #define APP_ADV_DURATION                BLE_GAP_ADV_TIMEOUT_GENERAL_UNLIMITED   /**< The advertising time-out (in units of seconds). When set to 0, we will never time out. */
    
    
    #define MIN_CONN_INTERVAL               MSEC_TO_UNITS(100, UNIT_1_25_MS)        /**< Minimum acceptable connection interval (0.5 seconds). */
    #define MAX_CONN_INTERVAL               MSEC_TO_UNITS(200, 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 time-out (4 seconds). */
    
    #define FIRST_CONN_PARAMS_UPDATE_DELAY  APP_TIMER_TICKS(20000)                  /**< Time from initiating event (connect or start of notification) to first time sd_ble_gap_conn_param_update is called (15 seconds). */
    #define NEXT_CONN_PARAMS_UPDATE_DELAY   APP_TIMER_TICKS(5000)                   /**< Time between each call to sd_ble_gap_conn_param_update after the first call (5 seconds). */
    #define MAX_CONN_PARAMS_UPDATE_COUNT    3                                       /**< Number of attempts before giving up the connection parameter negotiation. */
    
    #define BUTTON_DETECTION_DELAY          APP_TIMER_TICKS(50)                     /**< Delay from a GPIOTE event until a button is reported as pushed (in number of timer ticks). */
    
    #define DEAD_BEEF                       0xDEADBEEF                              /**< Value used as error code on stack dump, can be used to identify stack location on stack unwind. */
    //apdobaj turn on CLI
    #define USE_CLI                         1
    //apdobaj end turn on CLI
    //apdobaj add fast sensor sample timer interval
    #define MAGNETIC_SENSOR_FAST_TIMER_INTERVAL APP_TIMER_TICKS(50)                        /**< apd magnetic sensor fast (when decoding gesture) timer interval (ticks). */
    #define NOTIFICATION_INTERVAL           APP_TIMER_TICKS(1000) //apdobaj custom service
    //apdobaj added defines for pairing/bonding
    #define SEC_PARAM_BOND                      1                                       /**< Perform bonding. */
    #define SEC_PARAM_MITM                      0                                       /**< Man In The Middle protection not required. */
    #define SEC_PARAM_LESC                      1                                       /**< LE Secure Connections 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. */
    
    
    //apdobaj i2c prototypes
    void twi_init_i2c(void);
    void i2c_write_reg( uint8_t instance, uint8_t busAddr, uint8_t regAddr, uint8_t regVal );
    void i2c_read_reg(  uint8_t instance, uint8_t busAddr, uint8_t *rxBuff , uint8_t regAddr );
    static void gesture_sensor_init(uint8_t sensor);
    static void sample_sensor(uint32_t *bArray);
    static void enter_gesture_recognition_mode(void);
    static void on_cus_evt(ble_cus_t     * p_cus_service, ble_cus_evt_t * p_evt);
    static void notification_timeout_handler(void * p_context);
    //apdobaj pairing/bonding
    static void pm_evt_handler(pm_evt_t const * p_evt);
    static void on_adv_evt(ble_adv_evt_t ble_adv_evt);
    //apdobaj end prototypes
    //apdobaj macro to set up twi0
    static const nrfx_twim_t twi0 = NRFX_TWIM_INSTANCE(TWI_INSTANCE_ID0);
    //apdobaj fast timer sensor
    APP_TIMER_DEF(m_magnetic_sensor_fast_timer_id);                                 /**< apd magnetic sensor fast timer for decoding gesture. */
    //apdobaj define custom service instance per custom service tutorial
    BLE_CUS_DEF(m_cus);
    APP_TIMER_DEF(m_notification_timer_id); //apdobaj for custom service
    static uint8_t m_custom_value = 0; //apdobaj custom service
    //static ble_uuid_t m_adv_uuids[] = {{CUSTOM_SERVICE_UUID, BLE_UUID_TYPE_VENDOR_BEGIN}};
    
    
    BLE_LBS_DEF(m_lbs);                                                             /**< LED Button Service instance. */
    NRF_BLE_GATT_DEF(m_gatt);                                                       /**< GATT module instance. */
    NRF_BLE_QWR_DEF(m_qwr);                                                         /**< Context for the Queued Write module.*/
    
    static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID;                        /**< Handle of the current connection. */
    
    //apdobaj changed advertising handle to support pairing/bonding
    BLE_ADVERTISING_DEF(m_advertising);                                 /**< Advertising module instance. */
    //use the DIS and custom svc
    static ble_uuid_t m_adv_uuids[] =                                   /**< Universally unique service identifiers. */
    {
        {CUSTOM_SERVICE_UUID,              BLE_UUID_TYPE_BLE},
        //{CUSTOM_SERVICE_UUID,           BLE_UUID_TYPE_VENDOR_BEGIN},
        {BLE_UUID_DEVICE_INFORMATION_SERVICE,   BLE_UUID_TYPE_BLE}
    };
    
    //following defs no longer needed when going to the new advertising model for pariing/bonding
    //static uint8_t m_adv_handle = BLE_GAP_ADV_SET_HANDLE_NOT_SET;                   /**< Advertising handle used to identify an advertising set. */
    //static uint8_t m_enc_advdata[BLE_GAP_ADV_SET_DATA_SIZE_MAX];                    /**< Buffer for storing an encoded advertising set. */
    //static uint8_t m_enc_scan_response_data[BLE_GAP_ADV_SET_DATA_SIZE_MAX];         /**< Buffer for storing an encoded scan data. */
    
    /**@brief Struct that contains pointers to the encoded advertising data. */
    /*
    static ble_gap_adv_data_t m_adv_data =
    {
        .adv_data =
        {
            .p_data = m_enc_advdata,
            .len    = BLE_GAP_ADV_SET_DATA_SIZE_MAX
        },
        .scan_rsp_data =
        {
            .p_data = m_enc_scan_response_data,
            .len    = BLE_GAP_ADV_SET_DATA_SIZE_MAX
    
        }
    };
    */
    
    //apdobaj defines for CLI
    #if USE_CLI
    #if defined(APP_USBD_ENABLED) && APP_USBD_ENABLED
    #define CLI_OVER_USB_CDC_ACM 1
    #else
    #define CLI_OVER_USB_CDC_ACM 0
    #endif
    
    #if CLI_OVER_USB_CDC_ACM
    #include "nrf_cli_cdc_acm.h"
    #include "nrf_drv_usbd.h"
    #include "app_usbd_core.h"
    #include "app_usbd.h"
    #include "app_usbd_string_desc.h"
    #include "app_usbd_cdc_acm.h"
    #endif //CLI_OVER_USB_CDC_ACM
    
    #if defined(TX_PIN_NUMBER) && defined(RX_PIN_NUMBER)
    #define CLI_OVER_UART 1
    #else
    #define CLI_OVER_UART 0
    #endif
    
    #if CLI_OVER_UART
    #include "nrf_cli_uart.h"
    #endif
    
    /* If enabled then CYCCNT (high resolution) timestamp is used for the logger. */
    #define USE_CYCCNT_TIMESTAMP_FOR_LOG 0
    
    /**@file
     * @defgroup CLI_example main.c
     *
     * @{
     *
     */
    
    #if NRF_LOG_BACKEND_FLASHLOG_ENABLED
    NRF_LOG_BACKEND_FLASHLOG_DEF(m_flash_log_backend);
    #endif
    
    #if NRF_LOG_BACKEND_CRASHLOG_ENABLED
    NRF_LOG_BACKEND_CRASHLOG_DEF(m_crash_log_backend);
    #endif
    
    /* Counter timer. */
    APP_TIMER_DEF(m_timer_0);
    
    /* Declared in demo_cli.c */
    extern uint32_t m_counter;
    extern bool m_counter_active;
    
    #if CLI_OVER_USB_CDC_ACM
    
    /**
     * @brief Enable power USB detection
     *
     * Configure if example supports USB port connection
     */
    #ifndef USBD_POWER_DETECTION
    #define USBD_POWER_DETECTION false
    #endif
    
    static void usbd_user_ev_handler(app_usbd_event_type_t event)
    {
        switch (event)
        {
            case APP_USBD_EVT_STOPPED:
                app_usbd_disable();
                break;
            case APP_USBD_EVT_POWER_DETECTED:
                if (!nrf_drv_usbd_is_enabled())
                {
                    app_usbd_enable();
                }
                break;
            case APP_USBD_EVT_POWER_REMOVED:
                app_usbd_stop();
                break;
            case APP_USBD_EVT_POWER_READY:
                app_usbd_start();
                break;
            default:
                break;
        }
    }
    
    #endif //CLI_OVER_USB_CDC_ACM
    
    /**
     * @brief Command line interface instance
     * */
    #define CLI_EXAMPLE_LOG_QUEUE_SIZE  (4)
    
    #if CLI_OVER_USB_CDC_ACM
    NRF_CLI_CDC_ACM_DEF(m_cli_cdc_acm_transport);
    NRF_CLI_DEF(m_cli_cdc_acm,
                "usb_cli:~$ ",
                &m_cli_cdc_acm_transport.transport,
                '\r',
                CLI_EXAMPLE_LOG_QUEUE_SIZE);
    #endif //CLI_OVER_USB_CDC_ACM
    
    #if CLI_OVER_UART
    NRF_CLI_UART_DEF(m_cli_uart_transport, 0, 64, 16);
    NRF_CLI_DEF(m_cli_uart,
                "uart_cli:~$ ",
                &m_cli_uart_transport.transport,
                '\r',
                CLI_EXAMPLE_LOG_QUEUE_SIZE);
    #endif
    
    NRF_CLI_RTT_DEF(m_cli_rtt_transport);
    NRF_CLI_DEF(m_cli_rtt,
                "rtt_cli:~$ ",
                &m_cli_rtt_transport.transport,
                '\n',
                CLI_EXAMPLE_LOG_QUEUE_SIZE);
    
    
    static void timer_handle(void * p_context)
    {
        UNUSED_PARAMETER(p_context);
    
        if (m_counter_active)
        {
            m_counter++;
            NRF_LOG_RAW_INFO("counter = %d\n", m_counter);
        }
    }
    
    static void cli_start(void)
    {
        ret_code_t ret;
    
    #if CLI_OVER_USB_CDC_ACM
        ret = nrf_cli_start(&m_cli_cdc_acm);
        APP_ERROR_CHECK(ret);
    #endif
    
    #if CLI_OVER_UART
        ret = nrf_cli_start(&m_cli_uart);
        APP_ERROR_CHECK(ret);
    #endif
    
        ret = nrf_cli_start(&m_cli_rtt);
        APP_ERROR_CHECK(ret);
    }
    
    static void cli_init(void)
    {
        ret_code_t ret;
    
    #if CLI_OVER_USB_CDC_ACM
        ret = nrf_cli_init(&m_cli_cdc_acm, NULL, true, true, NRF_LOG_SEVERITY_INFO);
        APP_ERROR_CHECK(ret);
    #endif
    
    #if CLI_OVER_UART
        nrf_drv_uart_config_t uart_config = NRF_DRV_UART_DEFAULT_CONFIG;
        uart_config.pseltxd = TX_PIN_NUMBER;
        uart_config.pselrxd = RX_PIN_NUMBER;
        uart_config.hwfc    = NRF_UART_HWFC_DISABLED;
        ret = nrf_cli_init(&m_cli_uart, &uart_config, true, true, NRF_LOG_SEVERITY_INFO);
        APP_ERROR_CHECK(ret);
    #endif
    
        ret = nrf_cli_init(&m_cli_rtt, NULL, true, true, NRF_LOG_SEVERITY_INFO);
        APP_ERROR_CHECK(ret);
    }
    
    
    static void usbd_init(void)
    {
    #if CLI_OVER_USB_CDC_ACM
        ret_code_t ret;
        static const app_usbd_config_t usbd_config = {
            .ev_handler = app_usbd_event_execute,
            .ev_state_proc = usbd_user_ev_handler
        };
        ret = app_usbd_init(&usbd_config);
        APP_ERROR_CHECK(ret);
    
        app_usbd_class_inst_t const * class_cdc_acm =
                app_usbd_cdc_acm_class_inst_get(&nrf_cli_cdc_acm);
        ret = app_usbd_class_append(class_cdc_acm);
        APP_ERROR_CHECK(ret);
    
        if (USBD_POWER_DETECTION)
        {
            ret = app_usbd_power_events_enable();
            APP_ERROR_CHECK(ret);
        }
        else
        {
            NRF_LOG_INFO("No USB power detection enabled\nStarting USB now");
    
            app_usbd_enable();
            app_usbd_start();
        }
    
        /* Give some time for the host to enumerate and connect to the USB CDC port */
        nrf_delay_ms(1000);
    #endif
    }
    
    
    static void cli_process(void)
    {
    #if CLI_OVER_USB_CDC_ACM
        nrf_cli_process(&m_cli_cdc_acm);
    #endif
    
    #if CLI_OVER_UART
        nrf_cli_process(&m_cli_uart);
    #endif
    
        nrf_cli_process(&m_cli_rtt);
    }
    
    
    static void flashlog_init(void)
    {
        ret_code_t ret;
        int32_t backend_id;
    
        ret = nrf_log_backend_flash_init(&nrf_fstorage_nvmc);
        APP_ERROR_CHECK(ret);
    #if NRF_LOG_BACKEND_FLASHLOG_ENABLED
        backend_id = nrf_log_backend_add(&m_flash_log_backend, NRF_LOG_SEVERITY_WARNING);
        APP_ERROR_CHECK_BOOL(backend_id >= 0);
    
        nrf_log_backend_enable(&m_flash_log_backend);
    #endif
    
    #if NRF_LOG_BACKEND_CRASHLOG_ENABLED
        backend_id = nrf_log_backend_add(&m_crash_log_backend, NRF_LOG_SEVERITY_INFO);
        APP_ERROR_CHECK_BOOL(backend_id >= 0);
    
        nrf_log_backend_enable(&m_crash_log_backend);
    #endif
    }
    
    static inline void stack_guard_init(void)
    {
        APP_ERROR_CHECK(nrf_mpu_lib_init());
        APP_ERROR_CHECK(nrf_stack_guard_init());
    }
    
    uint32_t cyccnt_get(void)
    {
        return DWT->CYCCNT;
    }
    
    //apdobaj end defines for CLI
    #endif
    
    //apdobaj code for i2c
    //apd add i2c init function
    /**@brief Function for initializing the two wire interface for I2C.
     *
     * @details This function will be called to init the I2C interface.
     *
     * @param[in]   void
     */
    void twi_init_i2c( void )
    {
      ret_code_t err_code;
      uint8_t regValBuff1[1];
      uint8_t regValBuff2[1];
      nrfx_err_t nrfx_err_code;
    
      NRF_GPIOTE->INTENCLR = 0xFFFFFFFF;
    
      //nrfx_err_code = nrfx_twim_bus_recover(SCL0_PIN, SDA0_PIN);
    
      nrf_gpio_cfg( SCL0_PIN, NRF_GPIO_PIN_DIR_OUTPUT, NRF_GPIO_PIN_INPUT_DISCONNECT, NRF_GPIO_PIN_PULLUP, NRF_GPIO_PIN_S0D1, NRF_GPIO_PIN_NOSENSE );
      nrf_gpio_cfg( SDA0_PIN, NRF_GPIO_PIN_DIR_OUTPUT, NRF_GPIO_PIN_INPUT_CONNECT, NRF_GPIO_PIN_PULLUP, NRF_GPIO_PIN_D0H1, NRF_GPIO_PIN_NOSENSE );
    
      //first I2C interface
      const nrfx_twim_config_t twi0_i2c_config = {
        .scl                = SCL0_PIN,
        .sda                = SDA0_PIN,
        .frequency          = NRF_TWIM_FREQ_400K,
        .interrupt_priority = APP_IRQ_PRIORITY_HIGH,
        .hold_bus_uninit    = false
      };
      
      err_code = nrfx_twim_init( &twi0, &twi0_i2c_config, NULL, NULL );
      APP_ERROR_CHECK( err_code );
    
      nrfx_twim_enable( &twi0 );
    
    #if defined(MEMSIC_3416_PRESENT)
      i2c_read_reg(MEMSIC_3416_I2C_INSTANCE, MEMSIC_3416_I2C_ADDR, regValBuff1, MEMSIC_3416_ID);
      if (regValBuff1[0] == MEMSIC_3416_PRODUCT_ID) {
        SEGGER_RTT_printf(0,"3416 Sensor interface go! \r\n");
      }
    #endif
    #if defined(MEMSIC_5605_PRESENT)
    
      i2c_read_reg(MEMSIC_5605_I2C_INSTANCE, MEMSIC_5605_I2C_ADDR, regValBuff1, MEMSIC_560x_ID);
      if (regValBuff1[0] == MEMSIC_5605_PRODUCT_ID) {
        SEGGER_RTT_printf(0,"5605 Sensor interface go! \r\n");
                      //apdobaj debug
        bsp_board_led_on(SENSOR_OK_LED);
        nrf_delay_ms(2000);
        bsp_board_led_off(SENSOR_OK_LED);
      }
    #endif
    }
    
    void i2c_read_reg( uint8_t instance, uint8_t busAddr, uint8_t *rxBuff , uint8_t regAddr) 
    {
      uint8_t regAddrBuff[] = {regAddr};
      
      if (instance == 0) {
        nrfx_twim_tx( &twi0, busAddr, regAddrBuff, 1, false );
        nrfx_twim_rx( &twi0, busAddr, rxBuff, 1 );
      }
    }
    
    void i2c_write_reg( uint8_t instance, uint8_t busAddr, uint8_t regAddr, uint8_t regVal ) 
    {
      struct buff {
        uint8_t register_address;
        uint8_t payload_byte0;
      } write_buffer;
    
      // struct buff * p_buff = malloc(sizeof(struct buff));
    
      write_buffer.register_address = regAddr;
      write_buffer.payload_byte0 = regVal;
    
      if (instance == 0) {
        uint32_t err_code = nrfx_twim_tx( &twi0, busAddr, (uint8_t const *)&write_buffer, 2, false );
      }
     
      return;
    }
    
    
    
    static void gpio_init(void)
    {
      nrfx_gpiote_init();
      nrf_gpio_cfg( AMR_INT_PIN, NRF_GPIO_PIN_DIR_INPUT, NRF_GPIO_PIN_INPUT_DISCONNECT, NRF_GPIO_PIN_NOPULL, NRF_GPIO_PIN_S0S1, NRF_GPIO_PIN_NOSENSE );
    }
    
    //apd add magnetic sensor timeout interrupt service routine
    /**@brief Function for handling the magnetic field measurement timer timeout.
     *
     * @details This function will be called each time the magnetic sensor sample timer expires. The timer
     *                          is started once the threshold interrupt occurs.
     *
     * @param[in]   p_context   Pointer used for passing some arbitrary information (context) from the
     *                          app_start_timer() call to the timeout handler.
     */
    static void magnetic_sensor_fast_timer_isr(void * p_context)
    {
     
        ret_code_t err_code;
        static uint8_t num_samples;
        uint8_t gesture;
        uint32_t bArray[] = {0,0,0};
    
        err_code = app_timer_stop(m_magnetic_sensor_fast_timer_id);
        APP_ERROR_CHECK(err_code);
    
        UNUSED_PARAMETER(p_context);
    
        sample_sensor(bArray);
        sample_sensor(bArray); //need two smaples here to prevent re-occurence of previous gesture
    
        if ((abs(bArray[0]-SENSOR_BASELINE)>SAMPLE_THRESHOLD) || (abs(bArray[1]-SENSOR_BASELINE)>SAMPLE_THRESHOLD) || (abs(bArray[2]-SENSOR_BASELINE)>SAMPLE_THRESHOLD)) {
           if (num_samples == 0) {
             gesture = 0;
             //apdobaj pass by reference for larger size
             ble_cus_custom_value_update(&m_cus, gesture);
             //ble_cus_custom_value_update(&m_cus, *gesture);
             toggle_dongle_led(PLAY_PAUSE_LED);
             num_samples = 1;
             nrf_delay_ms(2000);
           }
           else {
             gesture = 3;
             ble_cus_custom_value_update(&m_cus, gesture);
             //ble_cus_custom_value_update(&m_cus, *gesture);
             toggle_dongle_led(PLAY_PAUSE_LED);
             num_samples = 0;
             nrf_delay_ms(2000);
           }
         }
    
        err_code = app_timer_start(m_magnetic_sensor_fast_timer_id, MAGNETIC_SENSOR_FAST_TIMER_INTERVAL, NULL);
        APP_ERROR_CHECK(err_code);
    }
    
    void amr_sensor_init()
    {
      uint8_t regValBuff[] = {0,0,0};
    
    #if defined(MEMSIC_5605_PRESENT)
      i2c_read_reg(MEMSIC_5605_I2C_INSTANCE, MEMSIC_5605_I2C_ADDR, regValBuff, MEMSIC_560x_X_SELFTEST);
      i2c_read_reg(MEMSIC_5605_I2C_INSTANCE, MEMSIC_5605_I2C_ADDR, regValBuff+1, MEMSIC_560x_Y_SELFTEST);
      i2c_read_reg(MEMSIC_5605_I2C_INSTANCE, MEMSIC_5605_I2C_ADDR, regValBuff+2, MEMSIC_560x_Z_SELFTEST);
      i2c_write_reg(MEMSIC_5605_I2C_INSTANCE, MEMSIC_5605_I2C_ADDR, MEMSIC_560x_X_THRESHOLD, regValBuff[0]*0.8);
      i2c_write_reg(MEMSIC_5605_I2C_INSTANCE, MEMSIC_5605_I2C_ADDR, MEMSIC_560x_Y_THRESHOLD, regValBuff[1]*0.8);
      i2c_write_reg(MEMSIC_5605_I2C_INSTANCE, MEMSIC_5605_I2C_ADDR, MEMSIC_560x_Z_THRESHOLD, regValBuff[2]*0.8);
      i2c_write_reg(MEMSIC_5605_I2C_INSTANCE, MEMSIC_5605_I2C_ADDR, MEMSIC_560x_CONTROL0, MEMSIC_560x_INITIATE_SELFTEST);
      i2c_write_reg(MEMSIC_5605_I2C_INSTANCE, MEMSIC_5605_I2C_ADDR, MEMSIC_560x_ODR, MEMSIC_560x_ON_DEMAND_MODE);
      i2c_write_reg(MEMSIC_5605_I2C_INSTANCE, MEMSIC_5605_I2C_ADDR, MEMSIC_560x_CONTROL1, MEMSIC_560x_BW_1_2MS_X_Y_Z);
      regValBuff[0] = 0xFF;
      i2c_read_reg(MEMSIC_5605_I2C_INSTANCE, MEMSIC_5605_I2C_ADDR, regValBuff, MEMSIC_560x_STATUS);
      if ((regValBuff[0] & 0x20) == 0x00) {
        SEGGER_RTT_printf(0,"5605 Sensor pass ST! \r\n");
      }
      
    #endif //5605 present
    
    }
    
    /**@brief Function for sampling a single i2c sensor.
     *
     * @details This function will return a B-field value for the current sensor.
     *
     * @param[in]   busAddr   I2C device address.
     */
    static void sample_sensor(uint32_t *sample_buff)
    {
     
        uint8_t lsb=0;
        uint8_t msb=0;
        uint32_t B=0;
        uint8_t regValBuff[1];
    
        regValBuff[0] = 0;
    
    #if defined(MEMSIC_3416_PRESENT)
    
      i2c_write_reg(MEMSIC_3416_I2C_INSTANCE, MEMSIC_3416_I2C_ADDR, MEMSIC_3416_CONTROL0, MEMSIC_3416_SET);
      i2c_write_reg(MEMSIC_3416_I2C_INSTANCE, MEMSIC_3416_I2C_ADDR, MEMSIC_3416_CONTROL0, MEMSIC_3416_REFILL_CAP);
      i2c_read_reg(MEMSIC_3416_I2C_INSTANCE, MEMSIC_3416_I2C_ADDR, regValBuff, MEMSIC_3416_STATUS);
      while ((regValBuff[0] & 0x02) == MEMSIC_3416_PUMP_ON) {
        i2c_read_reg(MEMSIC_3416_I2C_INSTANCE, MEMSIC_3416_I2C_ADDR, regValBuff, MEMSIC_3416_STATUS);
      }
        i2c_write_reg(MEMSIC_3416_I2C_INSTANCE, MEMSIC_3416_I2C_ADDR, MEMSIC_3416_CONTROL0, MEMSIC_3416_RESET);
      i2c_write_reg(MEMSIC_3416_I2C_INSTANCE, MEMSIC_3416_I2C_ADDR, MEMSIC_3416_CONTROL0, MEMSIC_3416_REFILL_CAP);
      i2c_read_reg(MEMSIC_3416_I2C_INSTANCE, MEMSIC_3416_I2C_ADDR, regValBuff, MEMSIC_3416_STATUS);
      while ((regValBuff[0] & 0x02) == MEMSIC_3416_PUMP_ON) {
        i2c_read_reg(MEMSIC_3416_I2C_INSTANCE, MEMSIC_3416_I2C_ADDR, regValBuff, MEMSIC_3416_STATUS);
      }
      i2c_write_reg(MEMSIC_3416_I2C_INSTANCE, MEMSIC_3416_I2C_ADDR, MEMSIC_3416_CONTROL0, MEMSIC_3416_MEASURE);
      i2c_read_reg(MEMSIC_3416_I2C_INSTANCE, MEMSIC_3416_I2C_ADDR, regValBuff, MEMSIC_3416_STATUS);
      while ((regValBuff[0] & 0x01) != MEMSIC_3416_MEAS_DONE) {
        i2c_read_reg(MEMSIC_3416_I2C_INSTANCE, MEMSIC_3416_I2C_ADDR, regValBuff, MEMSIC_3416_STATUS);
      }
    
      i2c_read_reg(MEMSIC_3416_I2C_INSTANCE, MEMSIC_3416_I2C_ADDR, regValBuff, MEMSIC_3416_XOUT_HI);
      msb = regValBuff[0];
      i2c_read_reg(MEMSIC_3416_I2C_INSTANCE, MEMSIC_3416_I2C_ADDR, regValBuff, MEMSIC_3416_XOUT_LO);
      lsb = regValBuff[0];
      sample_buff[0] = lsb+(msb<<8);
          
      i2c_read_reg(MEMSIC_3416_I2C_INSTANCE, MEMSIC_3416_I2C_ADDR, regValBuff, MEMSIC_3416_YOUT_HI);
      msb = regValBuff[0];
      i2c_read_reg(MEMSIC_3416_I2C_INSTANCE, MEMSIC_3416_I2C_ADDR, regValBuff, MEMSIC_3416_YOUT_LO);
      lsb = regValBuff[0];
      sample_buff[1] = lsb+(msb<<8);
          
      i2c_read_reg(MEMSIC_3416_I2C_INSTANCE, MEMSIC_3416_I2C_ADDR, regValBuff, MEMSIC_3416_ZOUT_HI);
      msb = regValBuff[0];
      i2c_read_reg(MEMSIC_3416_I2C_INSTANCE, MEMSIC_3416_I2C_ADDR, regValBuff, MEMSIC_3416_ZOUT_LO);
      lsb = regValBuff[0];
      sample_buff[2] = lsb+(msb<<8);
    #endif  //3416 present
    
    #if defined(MEMSIC_5605_PRESENT)
      i2c_write_reg(MEMSIC_5605_I2C_INSTANCE, MEMSIC_5605_I2C_ADDR, MEMSIC_560x_CONTROL0, MEMSIC_560x_SET);
      i2c_write_reg(MEMSIC_5605_I2C_INSTANCE, MEMSIC_5605_I2C_ADDR, MEMSIC_560x_CONTROL0, MEMSIC_560x_RESET);
      i2c_write_reg(MEMSIC_5605_I2C_INSTANCE, MEMSIC_5605_I2C_ADDR, MEMSIC_560x_CONTROL0, MEMSIC_560x_MEASURE_FIELD);
      i2c_read_reg(MEMSIC_5605_I2C_INSTANCE, MEMSIC_5605_I2C_ADDR, regValBuff, MEMSIC_560x_STATUS);
      while ((regValBuff[0] & 0x40) != MEMSIC_560x_MEAS_DONE) {
        i2c_read_reg(MEMSIC_5605_I2C_INSTANCE, MEMSIC_5605_I2C_ADDR, regValBuff, MEMSIC_560x_STATUS);
      }
    
      i2c_read_reg(MEMSIC_5605_I2C_INSTANCE, MEMSIC_5605_I2C_ADDR, regValBuff, MEMSIC_560x_XOUT0);
      msb = regValBuff[0];
      i2c_read_reg(MEMSIC_5605_I2C_INSTANCE, MEMSIC_5605_I2C_ADDR, regValBuff, MEMSIC_560x_XOUT1);
      lsb = regValBuff[0];
      sample_buff[0] = lsb+(msb<<8);
          
      i2c_read_reg(MEMSIC_5605_I2C_INSTANCE, MEMSIC_5605_I2C_ADDR, regValBuff, MEMSIC_560x_YOUT0);
      msb = regValBuff[0];
      i2c_read_reg(MEMSIC_5605_I2C_INSTANCE, MEMSIC_5605_I2C_ADDR, regValBuff, MEMSIC_560x_YOUT1);
      lsb = regValBuff[0];
      sample_buff[1] = lsb+(msb<<8);
          
      i2c_read_reg(MEMSIC_5605_I2C_INSTANCE, MEMSIC_5605_I2C_ADDR, regValBuff, MEMSIC_560x_ZOUT0);
      msb = regValBuff[0];
      i2c_read_reg(MEMSIC_5605_I2C_INSTANCE, MEMSIC_5605_I2C_ADDR, regValBuff, MEMSIC_560x_ZOUT1);
      lsb = regValBuff[0];
      sample_buff[2] = lsb+(msb<<8);
    
    #endif //5605 present
    }
    
    static void enter_gesture_recognition_mode(void)
    {
      ret_code_t err_code;
    
      err_code = app_timer_start(m_magnetic_sensor_fast_timer_id, MAGNETIC_SENSOR_FAST_TIMER_INTERVAL, NULL);
      APP_ERROR_CHECK(err_code);
    
    }
    
    //apdobaj end code for i2c
    
    
    //apdobaj code for custom service
    //apdobaj add case for sending RHDM packet
    #if USE_CLI
    extern void ble_cus_send_rhdm_packet(uint8_t value)
    //extern void ble_cus_send_rhdm_packet(nrf_cli_t const * p_cli, size_t argc, uint8_t value)
    {
        //SEGGER_RTT_printf(0,"argv %c,%d \r\n", *argv[0], argv[1]);
    
        //note this next line is affected by how the update is passed, ie, by reference or by value
        //use argv[1] for value
        uint32_t err_code = ble_cus_custom_value_update(&m_cus, value);
        //uint32_t err_code = ble_cus_custom_value_update(&m_cus, value);
        APP_ERROR_CHECK(err_code);
        toggle_dongle_led(BSP_BOARD_LED_1);
        toggle_dongle_led(BSP_BOARD_LED_2);
        toggle_dongle_led(BSP_BOARD_LED_3);
    }
    #endif
    
    
    //apdobaj custom service init
    static void gestr_svc_init(void)
    {
        ret_code_t                         err_code;
        ble_cus_init_t                     cus_init;
    
         // Initialize CUS Service init structure to zero.
        memset(&cus_init, 0, sizeof(cus_init));
    
        // Set the cus event handler
        cus_init.evt_handler                = on_cus_evt;
    	
        err_code = ble_cus_init(&m_cus, &cus_init);
        APP_ERROR_CHECK(err_code);	
        //These two lines sets the write and read permissions to the characteristic value attribute to open, 
        //i.e. the peer is allowed to write/read the value without encrypting the link first. 
        BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cus_init.custom_value_char_attr_md.read_perm);
        BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cus_init.custom_value_char_attr_md.write_perm);
    }
    
    /**@brief Function for handling the Custom Service Service events.
     *
     * @details This function will be called for all Custom Service events which are passed to
     *          the application.
     *
     * @param[in]   p_cus_service  Custom Service structure.
     * @param[in]   p_evt          Event received from the Custom Service.
     *
     */
    static void on_cus_evt(ble_cus_t     * p_cus_service,
                           ble_cus_evt_t * p_evt)
    {
    
        ret_code_t err_code;
    
        switch(p_evt->evt_type)
        {
    
            case BLE_CUS_EVT_NOTIFICATION_ENABLED:
               err_code = app_timer_start(m_notification_timer_id, NOTIFICATION_INTERVAL, NULL);
               APP_ERROR_CHECK(err_code);
                break;
    
            case BLE_CUS_EVT_NOTIFICATION_DISABLED:
               err_code = app_timer_stop(m_notification_timer_id);
               APP_ERROR_CHECK(err_code);
                break;
    
            case BLE_CUS_EVT_CONNECTED:
                break;
    
            case BLE_CUS_EVT_DISCONNECTED:
                  break;
    
            default:
                  // No implementation needed.
                  break;
        }
    }
    
    /**@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 notification_timeout_handler(void * p_context)
    {
        UNUSED_PARAMETER(p_context);
        ret_code_t err_code;
        
        // Increment the value of m_custom_value before nortifing it.
        m_custom_value++;
        
        //apdobaj timer driven custom value update routine for testing
        //uncomment two lines below to test sending messages to the phone useing the nrf_connect app
        //err_code = ble_cus_custom_value_update(&m_cus, m_custom_value);
        //APP_ERROR_CHECK(err_code);
    }
    
    extern void toggle_dongle_led(uint8_t led)
    {
      static bool state[4];
      if (state[led] == true) {
        bsp_board_led_on(led);
        state[led] = false;
      }
      else {
        bsp_board_led_off(led);
        state[led] = true;
      }
    }
    
    //apdobaj end code for custom service
    
    
    /**@brief Function for assert macro callback.
     *
     * @details This function will be called in case of an assert in the SoftDevice.
     *
     * @warning This handler is an example only and does not fit a final product. You need to analyze
     *          how your product is supposed to react in case of Assert.
     * @warning On assert from the SoftDevice, the system can only recover on reset.
     *
     * @param[in] line_num    Line number of the failing ASSERT call.
     * @param[in] p_file_name File name of the failing ASSERT call.
     */
    void assert_nrf_callback(uint16_t line_num, const uint8_t * p_file_name)
    {
        app_error_handler(DEAD_BEEF, line_num, p_file_name);
    }
    
    
    /**@brief Function for the LEDs initialization.
     *
     * @details Initializes all LEDs used by the application.
     */
    static void leds_init(void)
    {
        bsp_board_init(BSP_INIT_LEDS);
    }
    
    
    /**@brief Function for the Timer initialization.
     *
     * @details Initializes the timer module.
     */
    static void timers_init(void)
    {
        // Initialize timer module, making it use the scheduler
        ret_code_t err_code = app_timer_init();
        APP_ERROR_CHECK(err_code);
    
        //apdobaj add code for sensor sample timer
        err_code = app_timer_create(&m_magnetic_sensor_fast_timer_id,
                                    APP_TIMER_MODE_REPEATED,
                                    magnetic_sensor_fast_timer_isr);
        APP_ERROR_CHECK(err_code);
    
        //apdobaj added timer for custom service
        err_code = app_timer_create(&m_notification_timer_id, APP_TIMER_MODE_REPEATED, notification_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)
    {
        ret_code_t              err_code;
        ble_gap_conn_params_t   gap_conn_params;
        ble_gap_conn_sec_mode_t sec_mode;
    
        BLE_GAP_CONN_SEC_MODE_SET_OPEN(&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);
    
        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 the GATT module.
     */
    static void gatt_init(void)
    {
        ret_code_t err_code = nrf_ble_gatt_init(&m_gatt, NULL);
        APP_ERROR_CHECK(err_code);
    }
    
    
    //apdobaj add support for pairing/bonding by adding peer_manager_init
    /**@brief Function for the Peer Manager initialization.
     */
    static void peer_manager_init(void)
    {
        ble_gap_sec_params_t sec_param;
        ret_code_t           err_code;
    
        err_code = pm_init();
        APP_ERROR_CHECK(err_code);
    
        memset(&sec_param, 0, sizeof(ble_gap_sec_params_t));
    
        // Security parameters to be used for all security procedures.
        sec_param.bond           = SEC_PARAM_BOND;
        sec_param.mitm           = SEC_PARAM_MITM;
        sec_param.lesc           = SEC_PARAM_LESC;
        sec_param.keypress       = SEC_PARAM_KEYPRESS;
        sec_param.io_caps        = SEC_PARAM_IO_CAPABILITIES;
        sec_param.oob            = SEC_PARAM_OOB;
        sec_param.min_key_size   = SEC_PARAM_MIN_KEY_SIZE;
        sec_param.max_key_size   = SEC_PARAM_MAX_KEY_SIZE;
        sec_param.kdist_own.enc  = 1;
        sec_param.kdist_own.id   = 1;
        sec_param.kdist_peer.enc = 1;
        sec_param.kdist_peer.id  = 1;
    
        err_code = pm_sec_params_set(&sec_param);
        APP_ERROR_CHECK(err_code);
    
        err_code = pm_register(pm_evt_handler);
        APP_ERROR_CHECK(err_code);
    }
    
    //swap out the advertising_init functoin to support pairing/bonding
    /**@brief Function for initializing the Advertising functionality.
     *
     * @details Encodes the required advertising data and passes it to the stack.
     *          Also builds a structure to be passed to the stack when starting advertising.
     */
     /*
    static void advertising_init(void)
    {
        ret_code_t    err_code;
        ble_advdata_t advdata;
        ble_advdata_t srdata;
    
        ble_uuid_t adv_uuids[] = {{LBS_UUID_SERVICE, m_lbs.uuid_type}};
    
        // Build and set advertising data.
        memset(&advdata, 0, sizeof(advdata));
    
        advdata.name_type          = BLE_ADVDATA_FULL_NAME;
        advdata.include_appearance = true;
        advdata.flags              = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;
    
    
        memset(&srdata, 0, sizeof(srdata));
        srdata.uuids_complete.uuid_cnt = sizeof(adv_uuids) / sizeof(adv_uuids[0]);
        srdata.uuids_complete.p_uuids  = adv_uuids;
    
        err_code = ble_advdata_encode(&advdata, m_adv_data.adv_data.p_data, &m_adv_data.adv_data.len);
        APP_ERROR_CHECK(err_code);
    
        err_code = ble_advdata_encode(&srdata, m_adv_data.scan_rsp_data.p_data, &m_adv_data.scan_rsp_data.len);
        APP_ERROR_CHECK(err_code);
    
        ble_gap_adv_params_t adv_params;
    
        // Set advertising parameters.
        memset(&adv_params, 0, sizeof(adv_params));
    
        adv_params.primary_phy     = BLE_GAP_PHY_1MBPS;
        adv_params.duration        = APP_ADV_DURATION;
        adv_params.properties.type = BLE_GAP_ADV_TYPE_CONNECTABLE_SCANNABLE_UNDIRECTED;
        adv_params.p_peer_addr     = NULL;
        adv_params.filter_policy   = BLE_GAP_ADV_FP_ANY;
        adv_params.interval        = APP_ADV_INTERVAL;
    
        err_code = sd_ble_gap_adv_set_configure(&m_adv_handle, &m_adv_data, &adv_params);
        APP_ERROR_CHECK(err_code);
    }
    */
    
    /**@brief Function for initializing the Advertising functionality.
     */
    static void advertising_init(void)
    {
        ret_code_t             err_code;
        ble_advertising_init_t init;
    
        memset(&init, 0, sizeof(init));
    
        init.advdata.name_type               = BLE_ADVDATA_FULL_NAME;
        init.advdata.include_appearance      = true;
        init.advdata.flags                   = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;
        init.advdata.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);
        init.advdata.uuids_complete.p_uuids  = m_adv_uuids;
    
        init.config.ble_adv_fast_enabled  = true;
        init.config.ble_adv_fast_interval = APP_ADV_INTERVAL;
        init.config.ble_adv_fast_timeout  = APP_ADV_DURATION;
    
        init.evt_handler = on_adv_evt;
    
        err_code = ble_advertising_init(&m_advertising, &init);
        APP_ERROR_CHECK(err_code);
    
        ble_advertising_conn_cfg_tag_set(&m_advertising, APP_BLE_CONN_CFG_TAG);
    }
    
    
    /**@brief Function for handling Queued Write Module errors.
     *
     * @details A pointer to this function will be passed to each service which may need to inform the
     *          application about an error.
     *
     * @param[in]   nrf_error   Error code containing information about what went wrong.
     */
    static void nrf_qwr_error_handler(uint32_t nrf_error)
    {
        APP_ERROR_HANDLER(nrf_error);
    }
    
    
    /**@brief Function for handling write events to the LED characteristic.
     *
     * @param[in] p_lbs     Instance of LED Button Service to which the write applies.
     * @param[in] led_state Written/desired state of the LED.
     */
    static void led_write_handler(uint16_t conn_handle, ble_lbs_t * p_lbs, uint8_t led_state)
    {
        if (led_state)
        {
            //bsp_board_led_on(LEDBUTTON_LED);
            NRF_LOG_INFO("Received LED ON!");
        }
        else
        {
            //bsp_board_led_off(LEDBUTTON_LED);
            NRF_LOG_INFO("Received LED OFF!");
        }
    }
    
    
    /**@brief Function for initializing services that will be used by the application.
     */
    static void services_init(void)
    {
        ret_code_t         err_code;
        ble_lbs_init_t     init     = {0};
        nrf_ble_qwr_init_t qwr_init = {0};
        //apdobaj add dis_init
        ble_dis_init_t dis_init;
    
        // Initialize Queued Write Module.
        qwr_init.error_handler = nrf_qwr_error_handler;
    
        err_code = nrf_ble_qwr_init(&m_qwr, &qwr_init);
        APP_ERROR_CHECK(err_code);
    
        // Initialize LBS (LED Button Service).
        init.led_write_handler = led_write_handler;
    
        err_code = ble_lbs_init(&m_lbs, &init);
        APP_ERROR_CHECK(err_code);
    
        //apdobaj initialize custom service
        // modified to copy the HRS service init to support pairing/bonding
    
        gestr_svc_init();
    
        //apdobaj init the DIS (Device Information Service) from HRS example
        memset(&dis_init, 0, sizeof(dis_init));
    
        ble_srv_ascii_to_utf8(&dis_init.manufact_name_str, (char *)MANUFACTURER_NAME);
    
        dis_init.dis_char_rd_sec = SEC_OPEN;
    
        err_code = ble_dis_init(&dis_init);
        APP_ERROR_CHECK(err_code);
    
    }
    
    
    /**@brief Function for handling the Connection Parameters Module.
     *
     * @details This function will be called for all events in the Connection Parameters Module that
     *          are passed to the application.
     *
     * @note All this function does is to disconnect. This could have been done by simply
     *       setting the disconnect_on_fail config parameter, but instead we use the event
     *       handler mechanism to demonstrate its use.
     *
     * @param[in] p_evt  Event received from the Connection Parameters Module.
     */
    static void on_conn_params_evt(ble_conn_params_evt_t * p_evt)
    {
        ret_code_t err_code;
    
        if (p_evt->evt_type == BLE_CONN_PARAMS_EVT_FAILED)
        {
            err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_CONN_INTERVAL_UNACCEPTABLE);
            APP_ERROR_CHECK(err_code);
        }
    }
    
    
    /**@brief Function for handling a Connection Parameters error.
     *
     * @param[in] nrf_error  Error code containing information about what went wrong.
     */
    static void conn_params_error_handler(uint32_t nrf_error)
    {
        APP_ERROR_HANDLER(nrf_error);
    }
    
    
    /**@brief Function for initializing the Connection Parameters module.
     */
    static void conn_params_init(void)
    {
        ret_code_t             err_code;
        ble_conn_params_init_t cp_init;
    
        memset(&cp_init, 0, sizeof(cp_init));
    
        cp_init.p_conn_params                  = NULL;
        cp_init.first_conn_params_update_delay = FIRST_CONN_PARAMS_UPDATE_DELAY;
        cp_init.next_conn_params_update_delay  = NEXT_CONN_PARAMS_UPDATE_DELAY;
        cp_init.max_conn_params_update_count   = MAX_CONN_PARAMS_UPDATE_COUNT;
        cp_init.start_on_notify_cccd_handle    = BLE_GATT_HANDLE_INVALID;
        cp_init.disconnect_on_fail             = false;
        cp_init.evt_handler                    = on_conn_params_evt;
        cp_init.error_handler                  = conn_params_error_handler;
    
        err_code = ble_conn_params_init(&cp_init);
        APP_ERROR_CHECK(err_code);
    }
    
    //apdobaj added the following two functions to support pairing/bonding
    /**@brief Function for putting the chip into sleep mode.
     *
     * @note This function will not return.
     */
    static void sleep_mode_enter(void)
    {
        ret_code_t err_code;
    
        //err_code = bsp_indication_set(BSP_INDICATE_IDLE);
        //APP_ERROR_CHECK(err_code);
    
        // Prepare wakeup buttons.
        //apd remove to compile with button stuff disabled
        //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)
    {
        ret_code_t err_code;
    
        switch (ble_adv_evt)
        {
            case BLE_ADV_EVT_FAST:
                NRF_LOG_INFO("Fast advertising.");
                //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;
        }
    }
    
    
    //apdobaj added function to support pairing/bonding
    /**@brief Clear bond information from persistent storage.
     */
    static void delete_bonds(void)
    {
        ret_code_t err_code;
    
        NRF_LOG_INFO("Erase bonds!");
    
        err_code = pm_peers_delete();
        APP_ERROR_CHECK(err_code);
    }
    
    //apdobaj function changed to support pairing/bonding
    /**@brief Function for starting advertising.
     
    static void advertising_start(void)
    {
        ret_code_t           err_code;
    
        err_code = sd_ble_gap_adv_start(m_adv_handle, APP_BLE_CONN_CFG_TAG);
        APP_ERROR_CHECK(err_code);
    
        //bsp_board_led_on(ADVERTISING_LED);
    }
    */
    
    /**@brief Function for starting advertising.
     */
    
    void advertising_start(bool erase_bonds)
    {
        if (erase_bonds == true)
        {
            delete_bonds();
            // Advertising is started by PM_EVT_PEERS_DELETE_SUCCEEDED event.
        }
        else
        {
            ret_code_t err_code;
    
            err_code = ble_advertising_start(&m_advertising, BLE_ADV_MODE_FAST);
            APP_ERROR_CHECK(err_code);
        }
    }
    
    
    //apdobaj function added to support pairing/bonding
    /**@brief Function for handling Peer Manager events.
     *
     * @param[in] p_evt  Peer Manager event.
     */
    static void pm_evt_handler(pm_evt_t const * p_evt)
    {
        pm_handler_on_pm_evt(p_evt);
        pm_handler_flash_clean(p_evt);
    
        switch (p_evt->evt_id)
        {
            case PM_EVT_PEERS_DELETE_SUCCEEDED:
                //advertising_start();
                advertising_start(false);
                break;
    
            default:
                break;
        }
    }
    
    
    /**@brief Function for handling BLE events.
     *
     * @param[in]   p_ble_evt   Bluetooth stack event.
     * @param[in]   p_context   Unused.
     */
    static void ble_evt_handler(ble_evt_t const * p_ble_evt, void * p_context)
    {
        ret_code_t err_code;
    
        switch (p_ble_evt->header.evt_id)
        {
            case BLE_GAP_EVT_CONNECTED:
                NRF_LOG_INFO("Connected");
    #if USE_CLI
                bsp_board_led_on(CONNECTED_LED);
                bsp_board_led_off(ADVERTISING_LED);
    #endif
                m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
                err_code = nrf_ble_qwr_conn_handle_assign(&m_qwr, m_conn_handle);
                APP_ERROR_CHECK(err_code);
                //err_code = app_button_enable();
                //APP_ERROR_CHECK(err_code);
                break;
    
            case BLE_GAP_EVT_DISCONNECTED:
                NRF_LOG_INFO("Disconnected");
    #if USE_CLI
                bsp_board_led_off(CONNECTED_LED);
                bsp_board_led_on(ADVERTISING_LED);
    #endif
                m_conn_handle = BLE_CONN_HANDLE_INVALID;
                err_code = app_button_disable();
                APP_ERROR_CHECK(err_code);
                //apdobaj added param for pairing/bonding
                advertising_start(false);
                //advertising_start();
                break;
    
            //apdobaj removed case to support pairing/bonding
            /*
            case BLE_GAP_EVT_SEC_PARAMS_REQUEST:
                // Pairing not supported
                err_code = sd_ble_gap_sec_params_reply(m_conn_handle,
                                                       BLE_GAP_SEC_STATUS_PAIRING_NOT_SUPP,
                                                       NULL,
                                                       NULL);
                APP_ERROR_CHECK(err_code);
                break;
                */
    
            case BLE_GAP_EVT_PHY_UPDATE_REQUEST:
            {
                NRF_LOG_DEBUG("PHY update request.");
                ble_gap_phys_t const phys =
                {
                    .rx_phys = BLE_GAP_PHY_AUTO,
                    .tx_phys = BLE_GAP_PHY_AUTO,
                };
                err_code = sd_ble_gap_phy_update(p_ble_evt->evt.gap_evt.conn_handle, &phys);
                APP_ERROR_CHECK(err_code);
            } break;
    
            case BLE_GATTS_EVT_SYS_ATTR_MISSING:
                // No system attributes have been stored.
                err_code = sd_ble_gatts_sys_attr_set(m_conn_handle, NULL, 0, 0);
                APP_ERROR_CHECK(err_code);
                break;
    
            case BLE_GATTC_EVT_TIMEOUT:
                // Disconnect on GATT Client timeout event.
                NRF_LOG_DEBUG("GATT Client Timeout.");
                err_code = sd_ble_gap_disconnect(p_ble_evt->evt.gattc_evt.conn_handle,
                                                 BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
                APP_ERROR_CHECK(err_code);
                break;
    
            case BLE_GATTS_EVT_TIMEOUT:
                // Disconnect on GATT Server timeout event.
                NRF_LOG_DEBUG("GATT Server Timeout.");
                err_code = sd_ble_gap_disconnect(p_ble_evt->evt.gatts_evt.conn_handle,
                                                 BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
                APP_ERROR_CHECK(err_code);
                break;
    
            //apdobaj added following 4 cases to support pairing/bonding
            case BLE_GAP_EVT_SEC_PARAMS_REQUEST:
                NRF_LOG_DEBUG("BLE_GAP_EVT_SEC_PARAMS_REQUEST");
                break;
            
            case BLE_GAP_EVT_AUTH_KEY_REQUEST:
                NRF_LOG_INFO("BLE_GAP_EVT_AUTH_KEY_REQUEST");
                break;
    
            case BLE_GAP_EVT_LESC_DHKEY_REQUEST:
                NRF_LOG_INFO("BLE_GAP_EVT_LESC_DHKEY_REQUEST");
                break;
    
             case BLE_GAP_EVT_AUTH_STATUS:
                 NRF_LOG_INFO("BLE_GAP_EVT_AUTH_STATUS: status=0x%x bond=0x%x lv4: %d kdist_own:0x%x kdist_peer:0x%x",
                              p_ble_evt->evt.gap_evt.params.auth_status.auth_status,
                              p_ble_evt->evt.gap_evt.params.auth_status.bonded,
                              p_ble_evt->evt.gap_evt.params.auth_status.sm1_levels.lv4,
                              *((uint8_t *)&p_ble_evt->evt.gap_evt.params.auth_status.kdist_own),
                              *((uint8_t *)&p_ble_evt->evt.gap_evt.params.auth_status.kdist_peer));
                break;
    
            default:
                // No implementation needed.
                break;
        }
    }
    
    
    /**@brief Function for initializing the BLE stack.
     *
     * @details Initializes the SoftDevice and the BLE event interrupt.
     */
    static void ble_stack_init(void)
    {
        ret_code_t err_code;
    
        err_code = nrf_sdh_enable_request();
        APP_ERROR_CHECK(err_code);
    
        // Configure the BLE stack using the default settings.
        // Fetch the start address of the application RAM.
        uint32_t ram_start = 0;
        err_code = nrf_sdh_ble_default_cfg_set(APP_BLE_CONN_CFG_TAG, &ram_start);
        APP_ERROR_CHECK(err_code);
    
        // Enable BLE stack.
        err_code = nrf_sdh_ble_enable(&ram_start);
        APP_ERROR_CHECK(err_code);
    
        // Register a handler for BLE events.
        NRF_SDH_BLE_OBSERVER(m_ble_observer, APP_BLE_OBSERVER_PRIO, ble_evt_handler, NULL);
    }
    
    
    /**@brief Function for handling events from the button handler module.
     *
     * @param[in] pin_no        The pin that the event applies to.
     * @param[in] button_action The button action (press/release).
     */
    static void button_event_handler(uint8_t pin_no, uint8_t button_action)
    {
        ret_code_t err_code;
    
        switch (pin_no)
        {
            case LEDBUTTON_BUTTON:
                NRF_LOG_INFO("Send button state change.");
                err_code = ble_lbs_on_button_change(m_conn_handle, &m_lbs, button_action);
                if (err_code != NRF_SUCCESS &&
                    err_code != BLE_ERROR_INVALID_CONN_HANDLE &&
                    err_code != NRF_ERROR_INVALID_STATE &&
                    err_code != BLE_ERROR_GATTS_SYS_ATTR_MISSING)
                {
                    APP_ERROR_CHECK(err_code);
                }
                break;
    
            default:
                APP_ERROR_HANDLER(pin_no);
                break;
        }
    }
    
    
    /**@brief Function for initializing the button handler module.
     */
    static void buttons_init(void)
    {
        ret_code_t err_code;
    
        //The array must be static because a pointer to it will be saved in the button handler module.
        static app_button_cfg_t buttons[] =
        {
            {LEDBUTTON_BUTTON, false, BUTTON_PULL, button_event_handler}
        };
    
        err_code = app_button_init(buttons, ARRAY_SIZE(buttons),
                                   BUTTON_DETECTION_DELAY);
        APP_ERROR_CHECK(err_code);
    }
    
    
    static void log_init(void)
    {
        ret_code_t err_code = NRF_LOG_INIT(NULL);
        APP_ERROR_CHECK(err_code);
    
        NRF_LOG_DEFAULT_BACKENDS_INIT();
    }
    
    
    /**@brief Function for initializing power management.
     */
    static void power_management_init(void)
    {
        ret_code_t err_code;
        err_code = nrf_pwr_mgmt_init();
        APP_ERROR_CHECK(err_code);
    }
    
    
    /**@brief Function for handling the idle state (main loop).
     *
     * @details If there is no pending log operation, then sleep until next the next event occurs.
     */
    static void idle_state_handle(void)
    {
        if (NRF_LOG_PROCESS() == false)
        {
            nrf_pwr_mgmt_run();
        }
    }
    
    
    /**@brief Function for application main entry.
     */
    int main(void)
    {
    
        //apdobaj added to support pairing/bonding
        bool erase_bonds = true;
    
        // Initialize.
        log_init();
        leds_init();
        timers_init();
        buttons_init();
        power_management_init();
        //apdobaj added following line to prevent assert in nrf_drv_power_on_sd_enable
        nrf_drv_power_init();
        //apdobaj added following line for sensor interrupt pin
        gpio_init();
        //apdobaj init the i2c interface
        twi_init_i2c();
        //apdobaj init the memsic sensors
        amr_sensor_init();
        ble_stack_init();
        gap_params_init();
        gatt_init();
        services_init();
        advertising_init();
        conn_params_init();
        //apdobaj add support for pairing/bonding
        peer_manager_init();
    
        //apdobaj add CLI init stuff
        #if USE_CLI
    
        ret_code_t ret;
    
        if (USE_CYCCNT_TIMESTAMP_FOR_LOG)
        {
            CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk;
            DWT->CTRL |= DWT_CTRL_CYCCNTENA_Msk;
            DWT->CYCCNT = 0;
            APP_ERROR_CHECK(NRF_LOG_INIT(cyccnt_get, 64000000));
        }
        else
        {
            APP_ERROR_CHECK(NRF_LOG_INIT(app_timer_cnt_get));
        }
    
        //apdobaj commented next two lines error code returns module already initialized
        //ret = nrf_drv_clock_init();
        //APP_ERROR_CHECK(ret);
        nrf_drv_clock_lfclk_request(NULL);
    
        ret = app_timer_create(&m_timer_0, APP_TIMER_MODE_REPEATED, timer_handle);
        APP_ERROR_CHECK(ret);
    
        ret = app_timer_start(m_timer_0, APP_TIMER_TICKS(1000), NULL);
        APP_ERROR_CHECK(ret);
    
        cli_init();
    
        usbd_init();
    
        ret = fds_init();
        APP_ERROR_CHECK(ret);
    
    
        UNUSED_RETURN_VALUE(nrf_log_config_load());
    
        cli_start();
    
        flashlog_init();
    
        stack_guard_init();
    
        NRF_LOG_RAW_INFO("Command Line Interface example started.\n");
        NRF_LOG_RAW_INFO("Please press the Tab key to see all available commands.\n");
        //end cli init stuff
        #endif
    
        // Start execution.
        NRF_LOG_INFO("AST RHDM started.");
        //apdobaj param added to support pairing/bonding
        advertising_start(erase_bonds);
        //advertising_start();
    
        //apdobaj start recognizing gestures
    #if !USE_CLI  //the fast gesture timer doesn't coexist with the CLI code
        enter_gesture_recognition_mode();
    #endif
    
        // Enter main loop.
        //apdobaj CLI main loop
    #if USE_CLI
        while (true)
        {
        //apdobaj comment follwoing line
            //UNUSED_RETURN_VALUE(NRF_LOG_PROCESS());
    #if CLI_OVER_USB_CDC_ACM && APP_USBD_CONFIG_EVENT_QUEUE_ENABLE
            while (app_usbd_event_queue_process())
            {
                /* Nothing to do */
            }
    #endif
            cli_process();
        }
        //apdobaj end CLI main loop
    #else
        for (;;)
        {
            idle_state_handle();
        }
    #endif
    }
    
    
    /**
     * @}
     */
    

  • Would it be possible to have somebody take a look at this?

  • Hi,

    Can you try debugging your code and see what happens when you attempt to connect to the device through native Bluetooth? What do you mean by crash? Do you get any error codes?

  • Sorry, should have made that clear. on the phone side it starts pairing and then just quits. On the device side, it goes into the general fault handler (app_error_weak.c, the NRF_BREAKPOINT_COND trap).

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