Details: SDK v15.2.0 using ble_app_pwr_profiling example. Windows 8.1. Tested uploading to nRF52 DK and Blunor BT832F.
Steps:
- upload ble_app_pwr_profiling using SEGGER
- press button 1 or 2 on DK. Also tried holding reset, pressing button 1/2 and then releasing reset.
- wait for the device to show up on nRF connect (phone app, computer app with nRF52840 dongle). It never shows
How do I use this example? This is the only related question, so I tried commenting out all of the sd_power_system_off(). Still nothing.
/**
* Copyright (c) 2014 - 2018, 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.
*
*/
/** @file
*
* @defgroup ble_sdk_app_pwr_mgmt_main main.c
* @{
* @ingroup ble_sdk_app_pwr_mgmt
* @brief Power profiling sample application main file.
*
* This file contains the source code for a sample application to demonstrate/measure the power
* consumption by the nRF5 IC while sending notifications for a given duration and while
* advertising in non-connectable mode for a given duration. The values of macros that begin
* with APP_CFG_ prefix can be changed to alter the power consumption of the application.
*
* @ref srvlib_conn_params module.
*/
#include <stdint.h>
#include <string.h>
#include "nrf.h"
#include "nrf_soc.h"
#include "ble.h"
#include "ble_err.h"
#include "ble_hci.h"
#include "bsp.h"
#include "ble_srv_common.h"
#include "ble_advdata.h"
#include "nrf_sdh.h"
#include "nrf_sdh_ble.h"
#include "nrf_ble_gatt.h"
#include "nrf_ble_qwr.h"
#include "app_timer.h"
#include "app_error.h"
#include "nordic_common.h"
#include "nrf_pwr_mgmt.h"
// User-modifiable configuration parameters.
// The following values shall be altered when doing power profiling.
#define APP_CFG_NON_CONN_ADV_TIMEOUT 30 /**< Time for which the device must be advertising in non-connectable mode (in seconds). */
#define APP_CFG_CHAR_NOTIF_TIMEOUT 5000 /**< Time for which the device must continue to send notifications once connected to central (in milli seconds). */
#define APP_CFG_ADV_DATA_LEN 31 /**< Required length of the complete advertisement packet. This should be atleast 8 in order to accommodate flag field and other mandatory fields and one byte of manufacturer specific data. */
#define APP_CFG_CONNECTION_INTERVAL 20 /**< Connection interval used by the central (in milli seconds). This application will be sending one notification per connection interval. A repeating timer will be started with timeout value equal to this value and one notification will be sent everytime this timer expires. */
#define APP_CFG_CHAR_LEN 20 /**< Size of the characteristic value being notified (in bytes). */
// Fixed configuration parameters:
// The following parameters are not meant to be changed while using this application for power
// profiling.
#define NOTIF_BUTTON_ID 0 /**< Button used for initializing the application in connectable mode. */
#define NON_CONN_ADV_BUTTON_ID 1 /**< Button used for initializing the application in non-connectable mode. */
#define DEVICE_NAME "Nordic_Power_Mgmt" /**< Name of device. Will be included in the advertising data. */
#define COMPANY_IDENTIFIER 0x0059 /**< Company identifier for Nordic Semiconductor ASA as per www.bluetooth.org. */
#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 LOCAL_SERVICE_UUID 0x1523 /**< Proprietary UUID for local service. */
#define LOCAL_CHAR_UUID 0x1524 /**< Proprietary UUID for local characteristic. */
#define DEAD_BEEF 0xDEADBEEF /**< Value used as error code on stack dump, can be used to identify stack location on stack unwind. */
#define CHAR_NOTIF_TIMEOUT_IN_TKS APP_TIMER_TICKS(APP_CFG_CHAR_NOTIF_TIMEOUT) /**< Time for which the device must continue to send notifications once connected to central (in ticks). */
#define CONNECTABLE_ADV_INTERVAL MSEC_TO_UNITS(20, UNIT_0_625_MS) /**< The advertising interval for connectable advertisement (20 ms). This value can vary between 20ms to 10.24s. */
#define NON_CONNECTABLE_ADV_INTERVAL MSEC_TO_UNITS(100, UNIT_0_625_MS) /**< The advertising interval for non-connectable advertisement (100 ms). This value can vary between 100ms to 10.24s). */
#define APP_ADV_DURATION 3000 /**< The advertising duration (30 seconds) in units of 10 milliseconds. */
#define SLAVE_LATENCY 0 /**< Slave latency. */
#define CONN_SUP_TIMEOUT MSEC_TO_UNITS(4000, UNIT_10_MS) /**< Connection supervisory timeout (4 seconds). */
#define ADV_ENCODED_AD_TYPE_LEN 1 /**< Length of encoded ad type in advertisement data. */
#define ADV_ENCODED_AD_TYPE_LEN_LEN 1 /**< Length of the 'length field' of each ad type in advertisement data. */
#define ADV_FLAGS_LEN 1 /**< Length of flags field that will be placed in advertisement data. */
#define ADV_ENCODED_FLAGS_LEN (ADV_ENCODED_AD_TYPE_LEN + \
ADV_ENCODED_AD_TYPE_LEN_LEN + \
ADV_FLAGS_LEN) /**< Length of flags field in advertisement packet. (1 byte for encoded ad type plus 1 byte for length of flags plus the length of the flags itself). */
#define ADV_ENCODED_COMPANY_ID_LEN 2 /**< Length of the encoded Company Identifier in the Manufacturer Specific Data part of the advertisement data. */
#define ADV_ADDL_MANUF_DATA_LEN (APP_CFG_ADV_DATA_LEN - \
( \
ADV_ENCODED_FLAGS_LEN + \
( \
ADV_ENCODED_AD_TYPE_LEN + \
ADV_ENCODED_AD_TYPE_LEN_LEN + \
ADV_ENCODED_COMPANY_ID_LEN \
) \
) \
) /**< Length of Manufacturer Specific Data field that will be placed on the air during advertisement. This is computed based on the value of APP_CFG_ADV_DATA_LEN (required advertisement data length). */
#if APP_CFG_ADV_DATA_LEN > BLE_GAP_ADV_SET_DATA_SIZE_MAX
#error "The required advertisement data size (APP_CFG_ADV_DATA_LEN) is greater than the value allowed by stack (BLE_GAP_ADV_MAX_SIZE). Reduce the value of APP_CFG_ADV_DATA_LEN and recompile."
#endif
// Check whether the maximum characteristic length + opcode length (1) + handle length (2) is not
// greater than default MTU size.
#if (APP_CFG_CHAR_LEN + 1 + 2) > BLE_GATT_ATT_MTU_DEFAULT
#error "The APP_CFG_CHAR_LEN is too large for the maximum MTU size."
#endif
#if ADV_ADDL_MANUF_DATA_LEN < 1
#error "The required length of additional manufacturer specific data computed based on the user configured values is computed to be less than 1. Consider increasing the value of APP_CFG_ADV_DATA_LEN."
#endif
NRF_BLE_GATT_DEF(m_gatt); /**< GATT module instance. */
NRF_BLE_QWR_DEF(m_qwr); /**< Context for the Queued Write module.*/
APP_TIMER_DEF(m_conn_int_timer_id); /**< Connection interval timer. */
APP_TIMER_DEF(m_notif_timer_id); /**< Notification timer. */
static ble_gap_adv_params_t m_adv_params; /**< Parameters to be passed to the stack when starting advertising. */
static uint8_t m_char_value[APP_CFG_CHAR_LEN]; /**< Value of the characteristic that will be sent as a notification to the central. */
static uint8_t m_addl_adv_manuf_data[ADV_ADDL_MANUF_DATA_LEN]; /**< Value of the additional manufacturer specific data that will be placed in air (initialized to all zeros). */
static ble_gatts_char_handles_t m_char_handles; /**< Handles of local characteristic (as provided by the BLE stack).*/
static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID; /**< Handle of the current connection (as provided by the BLE stack, is BLE_CONN_HANDLE_INVALID if not in a connection).*/
static uint16_t m_service_handle; /**< Handle of local service (as provided by the BLE stack).*/
static bool m_is_notifying_enabled = false; /**< Variable to indicate whether the notification is enabled by the peer.*/
static bool m_is_notification_mode = false; /**< Flag to keep track of if the application is connectable and will have a service with notifications, or if it will advertise in non-connectable mode. */
static bool m_is_non_connectable_mode = false; /**< Flag to keep track of if the application is connectable and will have a service with notifications, or if it will advertise in non-connectable mode. */
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. */
/**@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 = NULL,
.len = 0
}
};
/**@brief 128-bit UUID base List. */
static ble_uuid128_t const m_base_uuid128 =
{
{
0x23, 0xD1, 0xBC, 0xEA, 0x5F, 0x78, 0x23, 0x15,
0xDE, 0xEF, 0x12, 0x12, 0x00, 0x00, 0x00, 0x00
}
};
/**@brief Callback function for asserts in the SoftDevice.
*
* @details This function will be called in case of an assert in the SoftDevice.
*
* @warning This handler is an example only and does not fit a final product. You need to analyze
* how your product is supposed to react in case of Assert.
* @warning On assert from the SoftDevice, the system can only recover on reset.
*
* @param[in] line_num Line number of the failing ASSERT call.
* @param[in] file_name File name of the failing ASSERT call.
*/
void assert_nrf_callback(uint16_t line_num, const uint8_t * p_file_name)
{
app_error_handler(DEAD_BEEF, line_num, p_file_name);
}
/**@brief Function for the Characteristic notification.
*
* @details Sends one characteristic value notification to peer if connected to it and the
* notification is enabled.
*/
static void char_notify(void)
{
ret_code_t err_code;
uint16_t len = APP_CFG_CHAR_LEN;
// Send value if connected and notifying.
if ((m_conn_handle != BLE_CONN_HANDLE_INVALID) && m_is_notifying_enabled)
{
ble_gatts_hvx_params_t hvx_params;
memset(&hvx_params, 0, sizeof(hvx_params));
len = sizeof(uint8_t);
hvx_params.handle = m_char_handles.value_handle;
hvx_params.type = BLE_GATT_HVX_NOTIFICATION;
hvx_params.offset = 0;
hvx_params.p_len = &len;
hvx_params.p_data = m_char_value;
err_code = sd_ble_gatts_hvx(m_conn_handle, &hvx_params);
if ((err_code != NRF_SUCCESS) &&
(err_code != NRF_ERROR_INVALID_STATE) &&
(err_code != NRF_ERROR_RESOURCES) &&
(err_code != BLE_ERROR_GATTS_SYS_ATTR_MISSING)
)
{
APP_ERROR_HANDLER(err_code);
}
}
}
/**@brief Function for the GAP initialization.
*
* @details This function shall be used to setup all the necessary GAP (Generic Access Profile)
* parameters of the device. It also sets the permissions.
*
*/
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));
// Set GAP Peripheral Preferred Connection Parameters (converting connection interval from
// milliseconds to required unit of 1.25ms).
gap_conn_params.min_conn_interval = (4 * APP_CFG_CONNECTION_INTERVAL) / 5;
gap_conn_params.max_conn_interval = (4 * APP_CFG_CONNECTION_INTERVAL) / 5;
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);
}
/**@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 initializing the Queued Write module.
*/
static void qwr_init(void)
{
ret_code_t err_code;
nrf_ble_qwr_init_t qwr_init_obj = {0};
// Initialize Queued Write Module.
qwr_init_obj.error_handler = nrf_qwr_error_handler;
err_code = nrf_ble_qwr_init(&m_qwr, &qwr_init_obj);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for initializing the connectable advertisement parameters.
*
* @details This function initializes the advertisement parameters to values that will put
* the application in connectable mode.
*
*/
static void connectable_adv_init(void)
{
// Initialize advertising parameters (used when starting advertising).
memset(&m_adv_params, 0, sizeof(m_adv_params));
m_adv_params.properties.type = BLE_GAP_ADV_TYPE_CONNECTABLE_SCANNABLE_UNDIRECTED;
m_adv_params.duration = APP_ADV_DURATION;
m_adv_params.p_peer_addr = NULL;
m_adv_params.filter_policy = BLE_GAP_ADV_FP_ANY;
m_adv_params.interval = CONNECTABLE_ADV_INTERVAL;
m_adv_params.primary_phy = BLE_GAP_PHY_1MBPS;
}
/**@brief Function for initializing the non-connectable advertisement parameters.
*
* @details This function initializes the advertisement parameters to values that will put
* the application in non-connectable mode.
*
*/
static void non_connectable_adv_init(void)
{
// Initialize advertising parameters (used when starting advertising).
memset(&m_adv_params, 0, sizeof(m_adv_params));
m_adv_params.properties.type = BLE_GAP_ADV_TYPE_NONCONNECTABLE_SCANNABLE_UNDIRECTED; // BLE_GAP_ADV_TYPE_CONNECTABLE_NONSCANNABLE_DIRECTED; //
m_adv_params.duration = APP_ADV_DURATION;
m_adv_params.p_peer_addr = NULL;
m_adv_params.filter_policy = BLE_GAP_ADV_FP_ANY;
m_adv_params.interval = NON_CONNECTABLE_ADV_INTERVAL;
m_adv_params.primary_phy = BLE_GAP_PHY_1MBPS;
}
/**@brief Function for initializing the Advertisement packet.
*
* @details This function initializes the data that is to be placed in an advertisement packet in
* both connectable and non-connectable modes.
*
*/
static void advertising_init(void)
{
ret_code_t err_code;
ble_advdata_t advdata;
ble_advdata_manuf_data_t manuf_data;
uint8_t flags = BLE_GAP_ADV_FLAGS_LE_ONLY_LIMITED_DISC_MODE;
APP_ERROR_CHECK_BOOL(sizeof(flags) == ADV_FLAGS_LEN); // Assert that these two values of the same.
// Build and set advertising data
memset(&advdata, 0, sizeof(advdata));
manuf_data.company_identifier = COMPANY_IDENTIFIER;
manuf_data.data.size = ADV_ADDL_MANUF_DATA_LEN;
manuf_data.data.p_data = m_addl_adv_manuf_data;
advdata.flags = flags;
advdata.p_manuf_specific_data = &manuf_data;
err_code = ble_advdata_encode(&advdata, m_adv_data.adv_data.p_data, &m_adv_data.adv_data.len);
APP_ERROR_CHECK(err_code);
if(m_is_non_connectable_mode)
{
err_code = sd_ble_gap_adv_set_configure(&m_adv_handle, NULL, &m_adv_params);
APP_ERROR_CHECK(err_code);
}
else
{
err_code = sd_ble_gap_adv_set_configure(&m_adv_handle, &m_adv_data, &m_adv_params);
APP_ERROR_CHECK(err_code);
}
}
/**@brief Function for adding the Characteristic.
*
* @details This function adds the characteristic to the local db.
*
* @param[in] uuid_type Type of service UUID assigned by the SoftDevice.
*
*/
static void char_add(const uint8_t uuid_type)
{
ret_code_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 char_uuid;
ble_gatts_attr_md_t attr_md;
memset(&cccd_md, 0, sizeof(cccd_md));
cccd_md.vloc = BLE_GATTS_VLOC_STACK;
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.write_perm);
memset(&char_md, 0, sizeof(char_md));
char_md.char_props.read = 1;
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 = &cccd_md;
char_md.p_sccd_md = NULL;
char_uuid.type = uuid_type;
char_uuid.uuid = LOCAL_CHAR_UUID;
memset(&attr_md, 0, sizeof(attr_md));
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&attr_md.write_perm);
attr_md.vloc = BLE_GATTS_VLOC_STACK;
attr_md.rd_auth = 0;
attr_md.wr_auth = 0;
attr_md.vlen = 0;
memset(&attr_char_value, 0, sizeof(attr_char_value));
attr_char_value.p_uuid = &char_uuid;
attr_char_value.p_attr_md = &attr_md;
attr_char_value.init_len = APP_CFG_CHAR_LEN;
attr_char_value.init_offs = 0;
attr_char_value.max_len = APP_CFG_CHAR_LEN;
attr_char_value.p_value = m_char_value;
err_code = sd_ble_gatts_characteristic_add(m_service_handle,
&char_md,
&attr_char_value,
&m_char_handles);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for adding the Service.
*
* @details This function adds the service and the characteristic within it to the local db.
*
*/
static void service_add(void)
{
ble_uuid_t service_uuid;
ret_code_t err_code;
service_uuid.uuid = LOCAL_SERVICE_UUID;
err_code = sd_ble_uuid_vs_add(&m_base_uuid128, &service_uuid.type);
APP_ERROR_CHECK(err_code);
err_code = sd_ble_gatts_service_add(BLE_GATTS_SRVC_TYPE_PRIMARY, &service_uuid, &m_service_handle);
APP_ERROR_CHECK(err_code);
// Add characteristics
char_add(service_uuid.type);
}
/**@brief Function for handling the Notification timeout.
*
* @details This function will be called when the notification timer expires. This will stop the
* timer for connection interval and disconnect from the peer.
*
* @param[in] p_context Pointer used for passing some arbitrary information (context) from the
* app_start_timer() call to the timeout handler.
*/
static void notif_timeout_handler(void * p_context)
{
ret_code_t err_code;
UNUSED_PARAMETER(p_context);
// Stop all notifications (by stopping the timer for connection interval that triggers
// notifications and disconnecting from peer).
err_code = app_timer_stop(m_conn_int_timer_id);
APP_ERROR_CHECK(err_code);
err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for handling the Connection interval timeout.
*
* @details This function will be called when the connection interval timer expires. This will
* trigger another characteristic notification to the peer.
*
* @param[in] p_context Pointer used for passing some arbitrary information (context) from the
* app_start_timer() call to the timeout handler.
*/
static void connection_interval_timeout_handler(void * p_context)
{
UNUSED_PARAMETER(p_context);
// Into next connection interval. Send one notification.
char_notify();
}
/**@brief Function for starting application timers.
*
* @details This function will be start two timers - one for the time duration for which
* notifications have to be sent to the peer and another for the interval between two
* notifications (which is also the connection interval).
*/
static void application_timers_start(void)
{
ret_code_t err_code;
// Start connection interval timer.
err_code = app_timer_start(m_conn_int_timer_id,
APP_TIMER_TICKS(APP_CFG_CONNECTION_INTERVAL),
NULL);
APP_ERROR_CHECK(err_code);
// Start characteristic notification timer.
err_code = app_timer_start(m_notif_timer_id, CHAR_NOTIF_TIMEOUT_IN_TKS, NULL);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for Stopping application timers.
*/
static void application_timers_stop(void)
{
ret_code_t err_code;
err_code = app_timer_stop(m_notif_timer_id);
APP_ERROR_CHECK(err_code);
err_code = app_timer_stop(m_conn_int_timer_id);
APP_ERROR_CHECK(err_code);
}
/**@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);
}
/**@brief Function for the Timer initialization.
*
* @details Initializes the timer module.
*/
static void timers_init(void)
{
ret_code_t err_code;
// Initialize timer module
err_code = app_timer_init();
APP_ERROR_CHECK(err_code);
// Create timers
err_code = app_timer_create(&m_conn_int_timer_id,
APP_TIMER_MODE_REPEATED,
connection_interval_timeout_handler);
APP_ERROR_CHECK(err_code);
err_code = app_timer_create(&m_notif_timer_id,
APP_TIMER_MODE_SINGLE_SHOT,
notif_timeout_handler);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for initializing buttons.
*/
static void buttons_init(void)
{
ret_code_t err_code = bsp_init(BSP_INIT_LEDS | BSP_INIT_BUTTONS, NULL);
APP_ERROR_CHECK(err_code);
}
/**@brief Function for evaluating the value written in CCCD
*
* @details This shall be called when there is a write event received from the stack. This
* function will evaluate whether or not the peer has enabled notifications and
* start/stop notifications accordingly.
*
* @param[in] p_ble_evt Bluetooth stack event.
*/
static void on_write(ble_evt_t const * p_ble_evt)
{
ble_gatts_evt_write_t const * p_evt_write = &p_ble_evt->evt.gatts_evt.params.write;
if ((p_evt_write->handle == m_char_handles.cccd_handle) && (p_evt_write->len == 2))
{
// CCCD written. Start notifications
m_is_notifying_enabled = ble_srv_is_notification_enabled(p_evt_write->data);
if (m_is_notifying_enabled)
{
application_timers_start();
char_notify();
}
else
{
application_timers_stop();
}
}
}
/**@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:
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);
break;
case BLE_GAP_EVT_DISCONNECTED:
m_conn_handle = BLE_CONN_HANDLE_INVALID;
application_timers_stop();
// Go to system-off mode
err_code = sd_power_system_off();
APP_ERROR_CHECK(err_code);
break;
case BLE_GAP_EVT_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:
err_code = sd_ble_gatts_sys_attr_set(m_conn_handle,
NULL,
0,
BLE_GATTS_SYS_ATTR_FLAG_SYS_SRVCS | BLE_GATTS_SYS_ATTR_FLAG_USR_SRVCS);
APP_ERROR_CHECK(err_code);
break;
case BLE_GAP_EVT_ADV_SET_TERMINATED:
if (p_ble_evt->evt.gap_evt.params.adv_set_terminated.reason == BLE_GAP_EVT_ADV_SET_TERMINATED_REASON_TIMEOUT)
{
// 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);
}
break;
case BLE_GATTC_EVT_TIMEOUT:
// Disconnect on GATT Client timeout event.
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.
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_GATTS_EVT_WRITE:
on_write(p_ble_evt);
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 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 Sleep until next the next event occurs.
*/
static void idle_state_handle(void)
{
nrf_pwr_mgmt_run();
}
/**@brief Function for application main entry.
*/
int main(void)
{
timers_init();
buttons_init();
power_management_init();
#if BUTTONS_NUMBER > 2
// Check button states.
// Notification Start button.
m_is_notification_mode = bsp_board_button_state_get(NOTIF_BUTTON_ID);
// Non-connectable advertisement start button.
if (!m_is_notification_mode)
{
m_is_non_connectable_mode = bsp_board_button_state_get(NON_CONN_ADV_BUTTON_ID);
}
else
{
// Un-configured button.
}
#else
m_is_notification_mode = true;
#endif
// Initialize SoftDevice.
ble_stack_init();
if (!m_is_notification_mode && !m_is_non_connectable_mode)
{
// The startup was not because of button presses. This is the first start.
// Go into System-Off mode. Button presses will wake the chip up.
nrf_pwr_mgmt_shutdown(NRF_PWR_MGMT_SHUTDOWN_GOTO_SYSOFF);
}
// If we reach this point, the application was woken up
// by pressing one of the two configured buttons.
gap_params_init();
gatt_init();
qwr_init();
if (m_is_notification_mode)
{
// Notification button is pressed. Start connectable advertisement.
connectable_adv_init();
service_add();
}
else
{
non_connectable_adv_init();
}
advertising_init();
advertising_start();
// Enter main loop.
for (;;)
{
idle_state_handle();
}
}
/**
* @}
*/
