How to modify custom Advertising packet values

RE: How to modify custom Advertising packet values

Honey — Sat, 30 Nov 2019 05:17:05 GMT

Great

RE: How to modify custom Advertising packet values

Rohit — Fri, 29 Nov 2019 13:14:45 GMT

Hi Honey ,

Thanks for your support and your suggestion.

Error is in my side.

I was getting the GATT issue in debugger in app.

"error 22 (0x16) gatt conn terminate local host"

(it is Pairing issue between mobile and device. Just we have to do unpair )

I have solved the issue with referring below link..

https://devzone.nordicsemi.com/f/nordic-q-a/30804/nrf-connect-for-android-disconnects-with-error-22-gatt-conn-terminate-local-host

Thanks Again,

Rohit

RE: How to modify custom Advertising packet values

Rohit — Fri, 29 Nov 2019 11:39:21 GMT

Ok thanks for valuable response.

I will check with button handler what is issue.

Again thanks.

Regards,

Rohit

RE: How to modify custom Advertising packet values

Rohit — Fri, 29 Nov 2019 11:37:07 GMT

Hi Honey,

i have modified code as per your suggestion code is working but it is not connecting with the app as shown below

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");
            bsp_board_led_on(CONNECTED_LED);
            bsp_board_led_off(ADVERTISING_LED);
            m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;

//            err_code = app_button_enable();
//            APP_ERROR_CHECK(err_code);
//            advertising_init();
            break;

        case BLE_GAP_EVT_DISCONNECTED:
            NRF_LOG_INFO("Disconnected");
            bsp_board_led_off(CONNECTED_LED);
            m_conn_handle = BLE_CONN_HANDLE_INVALID;
//            err_code = app_button_disable();
//            APP_ERROR_CHECK(err_code);
            advertising_init();
          //  advertising_start();
            break;

what is the issue with my code ...?

Please reply...

Regards,

Rohit

RE: How to modify custom Advertising packet values

Honey — Fri, 29 Nov 2019 08:18:56 GMT

Hi Rohit,

Changes you made seems to be connectable.

Are you calling this function sd_ble_gap_adv_start in advertising init section.

Your advertising_start function is empty and disconnect event will stops advertising further.

case BLE_GAP_EVT_DISCONNECTED:
NRF_LOG_INFO("Disconnected");
bsp_board_led_off(CONNECTED_LED);
m_conn_handle = BLE_CONN_HANDLE_INVALID;
// err_code = app_button_disable();
// APP_ERROR_CHECK(err_code);
advertising_start();
break;

Regards

Honey

RE: How to modify custom Advertising packet values

Rohit — Fri, 29 Nov 2019 07:42:00 GMT

Hi Honey,

i have solved by modify advertising init section with code below

 uint8_t adata[31];
      int i;
      memset(adata, 0, sizeof(adata));
      adata[0] = 30;
      adata[1] = BLE_GAP_AD_TYPE_COMPLETE_LOCAL_NAME;
      
      adata[2] = 'F';
      adata[3] = 'I';
      adata[4] = 'N';
      adata[5] = 'D';
      adata[6] = '_';
      adata[7] = '0';
      adata[8] = '0';
      adata[9] =BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;
      adata[10] = BLE_GAP_AD_TYPE_MANUFACTURER_SPECIFIC_DATA;
      // now fill the 29 bytes with whatever you want
      for(i = 11; i < sizeof(adata); i++)
      adata[i] = 0;


      err_code = sd_ble_gap_adv_data_set(adata, sizeof(adata), NULL, 0);
      APP_ERROR_CHECK(err_code);

like this shown below

while connecting it is not connecting to app(nrf connect).

What changes are required to make connectable ...?

Regards,

Rohit

RE: How to modify custom Advertising packet values

Honey — Fri, 29 Nov 2019 06:37:15 GMT

Hi Rohit,

I used your main.c file to build the project and it is is working. The only difference is that i don't have your bsp file and i commented that section.

Please compare the code.

/**
 * Copyright (c) 2015 - 2017, Nordic Semiconductor ASA
 * 
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form, except as embedded into a Nordic
 *    Semiconductor ASA integrated circuit in a product or a software update for
 *    such product, must reproduce the above copyright notice, this list of
 *    conditions and the following disclaimer in the documentation and/or other
 *    materials provided with the distribution.
 * 
 * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
 *    contributors may be used to endorse or promote products derived from this
 *    software without specific prior written permission.
 * 
 * 4. This software, with or without modification, must only be used with a
 *    Nordic Semiconductor ASA integrated circuit.
 * 
 * 5. Any software provided in binary form under this license must not be reverse
 *    engineered, decompiled, modified and/or disassembled.
 * 
 * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "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_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"

//#include "bsp.h"


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

#define ADVERTISING_LED                 BSP_BOARD_LED_3                         /**< Is on when device is advertising. */
#define CONNECTED_LED                   BSP_BOARD_LED_1                         /**< Is on when device has connected. */
#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                     "FIND_91"                               /**< Name of device. Will be included in the advertising data. */
#define DEVICE_NAME_P                   "FinD_91"                            /**< Name of device. Will be included in the advertising data. */
                                                   
#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                80      //500                               /**< The advertising interval (in units of 0.625 ms; this value corresponds to 40 ms). */
#define APP_ADV_TIMEOUT_IN_SECONDS      BLE_GAP_ADV_TIMEOUT_GENERAL_UNLIMITED   /**< 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 Single_click_INTERVAL           APP_TIMER_TICKS(1000)

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


BLE_LBS_DEF(m_lbs);                                                             /**< LED Button Service instance. */
NRF_BLE_GATT_DEF(m_gatt);                                                       /**< GATT module instance. */

APP_TIMER_DEF(long_button_action);
APP_TIMER_DEF(single_button_action);
APP_TIMER_DEF(Double_button_action);

static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID;                        /**< Handle of the current connection. */

static uint32_t cnt = 0, temp = 0, advertising_flag = 0;
static uint8_t press_cnt = 0, temp_click = 0;

 //static uint32_t cnt = 0;
/**@brief Function for assert macro callback.
 *
 * @details This function will be called in case of an assert in the SoftDevice.
 *
 * @warning This handler is an example only and does not fit a final product. You need to analyze
 *          how your product is supposed to react in case of Assert.
 * @warning On assert from the SoftDevice, the system can only recover on reset.
 *
 * @param[in] line_num    Line number of the failing ASSERT call.
 * @param[in] p_file_name File name of the failing ASSERT call.
 */
void assert_nrf_callback(uint16_t line_num, const uint8_t * p_file_name)
{
    app_error_handler(DEAD_BEEF, line_num, p_file_name);
}


/**@brief Function for the LEDs initialization.
 *
 * @details Initializes all LEDs used by the application.
 */
static void leds_init(void)
{
    bsp_board_leds_init();
}


/**@brief Function for the Timer initialization.
 *
 * @details Initializes the timer module.
 */
static void timers_init(void)
{
    // Initialize timer module, making it use the scheduler
    ret_code_t err_code = app_timer_init();
    APP_ERROR_CHECK(err_code);
}


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

    BLE_GAP_CONN_SEC_MODE_SET_OPEN(&sec_mode);


    if (advertising_flag == 1)                                              //for normal advert
    {
        advertising_flag = 0;
        err_code = sd_ble_gap_device_name_set(&sec_mode,
                                              (const uint8_t *)DEVICE_NAME,
                                              strlen(DEVICE_NAME));
        APP_ERROR_CHECK(err_code);
    }
    else if (advertising_flag == 2)                                              //for panic advert
    {
        advertising_flag = 0;
        err_code = sd_ble_gap_device_name_set(&sec_mode,
                                              (const uint8_t *)DEVICE_NAME_P,
                                              strlen(DEVICE_NAME_P));
        APP_ERROR_CHECK(err_code);
    }

//    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);
}

static  uint8_t adata[31];
/**@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_set(&advdata, &srdata);
//    APP_ERROR_CHECK(err_code);

//uint8_t adata[31];
//int i;
//  memset(adata, 0x00, sizeof(adata));
//  adata[0] = 30;
//  adata[1] = BLE_GAP_AD_TYPE_MANUFACTURER_SPECIFIC_DATA;
//  // now fill the 29 bytes with whatever you want
//  for(i = 2; i < sizeof(adata); i++)
//    adata[i] = i;
//
//  err_code = sd_ble_gap_adv_data_set(adata, sizeof(adata), NULL, 0);
//  APP_ERROR_CHECK(err_code);

     // ret_code_t      err_code;
    ble_advdata_t advdata;

    // Build advertising data struct to pass into @ref ble_advertising_init.
    memset(&advdata, 0, sizeof(advdata));
    advdata.flags                   = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;

//    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);

    uint8_t adv_data[13] = {0};
    uint8_t sr_data[20] = {0};

    // flags for discoverable/connectable
    adv_data[0] = 0x02; // ad field length = 2 bytes
    adv_data[1] = 0x01;   // ad field type = 0x01 [Flags)
    adv_data[2] = 0x06; // flags = 0x06, connectable/undirected

    // tx power field advertisement, iOS apps may need this
    adv_data[3] = 0x02; // ad field length = 2 bytes
    adv_data[4] = 0x0a;    // ad field type = 0x0A [TX Power)
    adv_data[5] = 0x03; // TX power in dBm
    // NOTE: TX power is a signed 8-bit value, and is not changed automatically
    // when using "hardware_set_txpower[<power>)". This may be anywhere from -23
    // to +3 based on your settings. Negative values may be converted to two's
    // complement form by adding 256, so for example -23 dBm would be 233 or 0xE9.
    
    // custom manufacturer
    adv_data[6] = 0x06; // ad field length = 5 bytes [arbitrary, maybe more or less but minimum 3)
    adv_data[7] = 0xff; // ad field type = 0xFF [Manufacturer Specific Data)
    adv_data[8] = 0xff; // unknown/prototype Company Identifier Code - octet 2 
    adv_data[9] = 0xff; // unknown/prototype Company Identifier Code - octet 1 
    adv_data[10] = 0xb1; // custom data byte //1 [can be anything)
    adv_data[11] = 0xb2; // custom data byte //2 [can be anything)
    adv_data[12] = 0xb3; // custom data byte //3 (can be anything)
    // NOTE: manufacturer data fields should contain the Company Identifier Code
    // in order to stay within BT 4.0 spec. You should also ideally obtain an
    // an official Company Identifier Code, but 0xFFFF is suitable for development.
    // (this is why the minimum ad field length for this is 3, so the CIC fits)

    // More bytes are possible here, but not necessary for this demo.
    // Compare with automatically generated ad packets from other
    // demo projects to see what else you might put here, or read
    // the relevant portions of the Bluetooth 4.0 Core Spec document
    // for greater detail.
    
    // -------------------------------
    // build custom scan response data
    // -------------------------------

    // get Bluetooth MAC address of this device (NOTE: this is little-endian!)

    sr_data[0] = 0x13;  // ad field length = 19 bytes (0x13)
    sr_data[1] = 0x09;   // ad field type = 0x09 (Complete local name)
    sr_data[2] = 0x4d;  // 'M'
    sr_data[3] = 0x79;  // 'y'
    sr_data[4] = 0x20;  // ' '
    sr_data[5] = 0x57;  // 'W'
    sr_data[6] = 0x69;  // 'i'
    sr_data[7] = 0x64;  // 'd'
    sr_data[8] = 0x67;  // 'g'
    sr_data[9] = 0x65;  // 'e'
    sr_data[10] = 0x74; // 't'
    sr_data[11] = 0x20; // ' '
    sr_data[12] = 0x01;
    sr_data[13] = 0x02;
    sr_data[14] = 0x03;
    sr_data[15] = 0x04;
    sr_data[16] = 0x05;
    sr_data[17] = 0x06;
    sr_data[18] = 0x07;
    sr_data[19] = 0x08;
    
   // uint32_t err_code;
    err_code = sd_ble_gap_adv_data_set(adv_data, 13, sr_data, 20);
    APP_ERROR_CHECK(err_code);

    ble_gap_adv_params_t adv_params;

    // Start advertising
    memset(&adv_params, 0, sizeof(adv_params));

    adv_params.type        = BLE_GAP_ADV_TYPE_ADV_IND;
    adv_params.p_peer_addr = NULL;
    adv_params.fp          = BLE_GAP_ADV_FP_ANY;
    adv_params.interval    = APP_ADV_INTERVAL;
    adv_params.timeout     = APP_ADV_TIMEOUT_IN_SECONDS;

    err_code = sd_ble_gap_adv_start(&adv_params, APP_BLE_CONN_CFG_TAG);
    APP_ERROR_CHECK(err_code);
    bsp_board_led_on(ADVERTISING_LED);
    bsp_board_led_off(ADVERTISING_LED);
    
}


/**@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;

    init.led_write_handler = led_write_handler;

    err_code = ble_lbs_init(&m_lbs, &init);
    APP_ERROR_CHECK(err_code);
}

///**@brief Function for handling advertising events.
// *
// * @details This function will be called for advertising events which are passed to the application.
// *
// * @param[in] ble_adv_evt  Advertising event.
// */
//static void on_adv_evt(ble_adv_evt_t ble_adv_evt)
//{
//    uint32_t err_code;
//
//    switch (ble_adv_evt)
//    {
//        case BLE_ADV_EVT_FAST:
//            err_code = bsp_indication_set(BSP_INDICATE_ADVERTISING);
//            APP_ERROR_CHECK(err_code);
//            break;
//        case BLE_ADV_EVT_IDLE:
//            sleep_mode_enter();
//            break;
//        default:
//            break;
//    }
//}
/**@brief Function for handling the Connection Parameters Module.
 *
 * @details This function will be called for all events in the Connection Parameters Module that
 *          are passed to the application.
 *
 * @note All this function does is to disconnect. This could have been done by simply
 *       setting the disconnect_on_fail config parameter, but instead we use the event
 *       handler mechanism to demonstrate its use.
 *
 * @param[in] p_evt  Event received from the Connection Parameters Module.
 */
static void on_conn_params_evt(ble_conn_params_evt_t * p_evt)
{
    ret_code_t err_code;

    if (p_evt->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);
}


/**@brief Function for starting advertising.
 */
static void advertising_start(void)
{
    ret_code_t           err_code;
   
//    ble_gap_adv_params_t adv_params;
//
//    // Start advertising
//    memset(&adv_params, 0, sizeof(adv_params));
//
//    adv_params.type        = BLE_GAP_ADV_TYPE_ADV_IND;
 //   adv_params.p_peer_addr = NULL;
//    adv_params.fp          = BLE_GAP_ADV_FP_ANY;
//    adv_params.interval    = APP_ADV_INTERVAL;
//    adv_params.timeout     = APP_ADV_TIMEOUT_IN_SECONDS;

//    err_code = sd_ble_gap_adv_start(&adv_data, APP_BLE_CONN_CFG_TAG);
//    APP_ERROR_CHECK(err_code);
//    bsp_board_led_on(ADVERTISING_LED);
//    bsp_board_led_off(ADVERTISING_LED);
}


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

    switch (p_ble_evt->header.evt_id)
    {
        case BLE_GAP_EVT_CONNECTED:
            NRF_LOG_INFO("Connected");
            bsp_board_led_on(CONNECTED_LED);
            bsp_board_led_off(ADVERTISING_LED);
            m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;

            err_code = app_button_enable();
            APP_ERROR_CHECK(err_code);
            break;

        case BLE_GAP_EVT_DISCONNECTED:
            NRF_LOG_INFO("Disconnected");
            bsp_board_led_off(CONNECTED_LED);
            m_conn_handle = BLE_CONN_HANDLE_INVALID;
//            err_code = app_button_disable();
//            APP_ERROR_CHECK(err_code);
            advertising_start();
            break;

        case BLE_GAP_EVT_SEC_PARAMS_REQUEST:
            // Pairing not supported
            err_code = sd_ble_gap_sec_params_reply(m_conn_handle,
                                                   BLE_GAP_SEC_STATUS_PAIRING_NOT_SUPP,
                                                   NULL,
                                                   NULL);
            APP_ERROR_CHECK(err_code);
            break;

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

        case BLE_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;

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

        case BLE_GATTS_EVT_RW_AUTHORIZE_REQUEST:
        {
            ble_gatts_evt_rw_authorize_request_t  req;
            ble_gatts_rw_authorize_reply_params_t auth_reply;

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

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

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


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

    err_code = nrf_sdh_enable_request();
    APP_ERROR_CHECK(err_code);

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

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

    // Register a handler for BLE events.
    NRF_SDH_BLE_OBSERVER(m_ble_observer, APP_BLE_OBSERVER_PRIO, ble_evt_handler, NULL);
}

//#define BT0_SHORT_PUSH BSP_EVENT_KEY_0
//#define BT0_LONG_PUSH  BSP_EVENT_KEY_1
////#define BT0_double_PUSH BSP_EVENT_KEY_0
//
///**@brief Function for handling events from the BSP module.
// *
// * @param[in]   event   Event generated by button press.
// */
//void bsp_event_handler(bsp_event_t event)
//{
//    uint32_t err_code;
//    switch (event)
//    {
//        case BT0_SHORT_PUSH:
//            NRF_LOG_INFO("Short button press");
//            break;
//        
//        case BT0_LONG_PUSH:
//            NRF_LOG_INFO("Long button press");
//            break;
//
////        case BT0_double_PUSH:
////            NRF_LOG_INFO("double button press");
////            break;
//
//        default:
//            break;
//    }
//}
///**@brief Function for initializing buttons and leds.
// *
// * @param[out] p_erase_bonds  Will be true if the clear bonding button was pressed to wake the application up.
// */
//static void buttons_leds_init(bool * p_erase_bonds)
//{
//    bsp_event_t startup_event;
//
//    uint32_t err_code = bsp_init(BSP_INIT_BUTTONS, bsp_event_handler);
//    APP_ERROR_CHECK(err_code);
//
//    err_code = bsp_event_to_button_action_assign(BSP_BOARD_BUTTON_0, BSP_BUTTON_ACTION_PUSH, BT0_SHORT_PUSH);
//    APP_ERROR_CHECK(err_code);
//
//    err_code = bsp_event_to_button_action_assign(BSP_BOARD_BUTTON_0, BSP_BUTTON_ACTION_LONG_PUSH, BT0_LONG_PUSH);
//    APP_ERROR_CHECK(err_code);
//
//    /*err_code = bsp_btn_ble_init(NULL, &startup_event);
//    APP_ERROR_CHECK(err_code);
//
//    *p_erase_bonds = (startup_event == BSP_EVENT_CLEAR_BONDING_DATA);*/
//}

/**@brief Function for handling events from the button handler module.
 *
 * @param[in] pin_no        The pin that the event applies to.
 * @param[in] button_action The button action (press/release).
 */
static void button_event_handler(uint8_t pin_no, uint8_t button_action)
{
    ret_code_t err_code;

    switch (pin_no)
    {
        case LEDBUTTON_BUTTON:
            advertising_start();
            NRF_LOG_INFO("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 the Power Manager.
 */
static void power_manage(void)
{
    ret_code_t err_code = sd_app_evt_wait();
    APP_ERROR_CHECK(err_code);
}

/**********************************************************************************************/



#if USE_BSP == 0

#define PIN_0 0



#define BUTTON_STATE_POLL_INTERVAL_MS  10UL

#define D_BUTTON_STATE_POLL_INTERVAL_MS  50UL

#define LONG_PRESS(MS)    (uint32_t)(MS)/BUTTON_STATE_POLL_INTERVAL_MS 


/**********************************************************************************************/

/**@brief Function for handling events from the button handler module.
 *
 .
 * @param[in] p_context   Unused.
 */
void single_click_timeout_handler(void * p_context)
{
      uint32_t err_code;

      if(press_cnt  ==  2)
      {
        NRF_LOG_INFO("double Button press"); 
        
        press_cnt=0;
              
        /***************************/
        err_code = sd_ble_gap_adv_stop();     //stop advertising
        APP_ERROR_CHECK(err_code);

        advertising_flag = 2;

        gap_params_init();
        advertising_init();

        advertising_start();                  //panic normal advertising
        /***************************/
      }
      else
      {
        press_cnt = 0;
        if( temp_click == 0)
        {          
          temp_click = 1;
          NRF_LOG_INFO("single button press");

          app_timer_stop(single_button_action);
          APP_ERROR_CHECK(err_code);

          /***************************/
          advertising_flag = 1;

          gap_params_init();
          advertising_init();

          advertising_start();                  //start normal advertising
          /***************************/
        }
      }

      
      return;
}

/**********************************************************************************************/

/**@brief Function for the button handler module.
 *
 .
 * @param[in] p_context   Unused.
 */
void button_press_timeout_handler(void * p_context)
{ 
     uint32_t err_code;
     static uint32_t cnt;


     if (app_button_is_pushed(0))
     {
         cnt++;
         if ( cnt >= LONG_PRESS(2000))
         {
             cnt = 0;
             temp_click = 0;

             NRF_LOG_INFO("Long Button press");

             err_code = sd_ble_gap_adv_stop();     //stop advertising
             APP_ERROR_CHECK(err_code);
         }
         else
         {
            err_code = app_timer_start(long_button_action, 
                                       APP_TIMER_TICKS(BUTTON_STATE_POLL_INTERVAL_MS),
                                       NULL);
            APP_ERROR_CHECK(err_code);
         }
     }
     else
     {
          cnt = 0 ;
          press_cnt++;
          if(press_cnt==1)
          {
            err_code = app_timer_start(single_button_action, 
                                   Single_click_INTERVAL,
                                   NULL);
            APP_ERROR_CHECK(err_code);
          }

     }
     
    return;
}

void button_callback(uint8_t pin_no, uint8_t button_action)
{
      uint32_t err_code;

      
      if ((pin_no == BUTTON_1) && (button_action == APP_BUTTON_PUSH))
      {
          err_code = app_timer_start(long_button_action, 
                                     APP_TIMER_TICKS(BUTTON_STATE_POLL_INTERVAL_MS),
                                     NULL);
          APP_ERROR_CHECK(err_code);
      }
}
/**@brief Function for initializing the button handler module.
 */
static void buttons_init(void)
{
      uint32_t err_code;
      
      static app_button_cfg_t  button_cfg;

      button_cfg.pin_no         = BUTTON_1;
      button_cfg.button_handler = button_callback;
      button_cfg.pull_cfg       = NRF_GPIO_PIN_PULLUP;
      button_cfg.active_state   = APP_BUTTON_ACTIVE_LOW;
      
      err_code = app_button_init(&button_cfg, 1, 100);
      APP_ERROR_CHECK(err_code);
      
      err_code = app_button_enable();
      APP_ERROR_CHECK(err_code);

      /*Enable an app timer instance to detect long button press*/
      err_code = app_timer_create(&long_button_action, APP_TIMER_MODE_SINGLE_SHOT, button_press_timeout_handler);
      APP_ERROR_CHECK(err_code);

      err_code = app_timer_create(&single_button_action, APP_TIMER_MODE_SINGLE_SHOT, single_click_timeout_handler);
      APP_ERROR_CHECK(err_code);
}
#endif //USE_BSP

static void log_init(void)
{
    ret_code_t err_code = NRF_LOG_INIT(NULL);
    APP_ERROR_CHECK(err_code);

    NRF_LOG_DEFAULT_BACKENDS_INIT();
}




/**@brief Function for application main entry.
 */
int main(void)
{
    // Initialize.
    leds_init();
    timers_init();
    log_init();
#if USE_BSP == 0
    buttons_init();
#else
    buttons_leds_init(&erase_bonds);
#endif
    //buttons_init();
    ble_stack_init();
    gap_params_init();
    gatt_init();
    services_init();
    advertising_init();
    conn_params_init();

    // Start execution.
    NRF_LOG_INFO("FIND test example started.");
    //advertising_start();

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

        if (NRF_LOG_PROCESS() == false)
        {     
            //buttons_init();
            power_manage();
          
        }
    }
}


/**
 * @}
 */

I think one of your button handler might causing the problem.

Regards

Honey

RE: How to modify custom Advertising packet values

Rohit — Fri, 29 Nov 2019 06:09:24 GMT

Hello Honey,

Thanks for your response.

As per your i have modified and its working but without the Name .

Its showing the N/A as in the screenshot below.

So what changes are required so that it will advertise with name..?

Waiting for your valuable response.

Regards

Rohit

RE: How to modify custom Advertising packet values

Honey — Thu, 28 Nov 2019 12:53:16 GMT

Hi Rohit,

It seems like you are passing a wrong argument to the function sd_ble_gap_adv_start

modify your code like this and try:

ble_gap_adv_params_t adv_params;

// Start advertising
memset(&adv_params, 0, sizeof(adv_params));

adv_params.type = BLE_GAP_ADV_TYPE_ADV_IND;
adv_params.p_peer_addr = NULL;
adv_params.fp = BLE_GAP_ADV_FP_ANY;
adv_params.interval = APP_ADV_INTERVAL;
adv_params.timeout = APP_ADV_TIMEOUT_IN_SECONDS;

err_code = sd_ble_gap_adv_start(&adv_params, APP_BLE_CONN_CFG_TAG);
APP_ERROR_CHECK(err_code);

Regards

Honey