Hi,
I try to activate the bonding with the "ble_app_multiperipheral" exemple project I have modified.
It is very strange because I can bond as wanted but only if I set, in the "peer_manager_init" function "sec_param.bond" value to false.
Normally, and accordly to the documentation :
this parameter has to be "true" and all the "kdist_***" parameters have to be set to "1".
In 2 sentences :
1) If I follow the documentation and set all the security parameters for "Pairing, no bonding", I can bond
2) If I follow the documentation and set all the security parameters for "Just Works bonding", I cannot bond and have a "Fatal error" when bonding
What the hell I have not done correctly?
Thanks in advance for any help.
PS : attached my sdk_config and my main cource code.
/** * Copyright (c) 2015 - 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. * */ /** * @brief Multiperipheral Sample Application main file. * * This file contains the source code for a sample server application with multiple peripheral connections using the LED Button service. */ #include <stdint.h> #include <string.h> #include "nordic_common.h" #include "nrf.h" #include "boards.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_dis.h" #include "ble_conn_params.h" #include "ble_conn_state.h" #include "nrf_gpio.h" #include "nrf_sdh.h" #include "nrf_sdh_ble.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 "door_service.h" #include "fds.h" #include "peer_manager.h" #include "nrf_log.h" #include "nrf_log_ctrl.h" #include "nrf_log_default_backends.h" #define DEVICE_NAME "6@granois" /**< Name of device. Will be included in the advertising data. */ #define MANUFACTURER_NAME "Fabien Duay" /**< Manufacturer. Will be passed to Device Information Service. */ #define HARDWARE_REVISION "3" #define SOFTWARE_REVISION "2" #define APP_BLE_CONN_CFG_TAG 1 /**< A tag identifying the SoftDevice BLE configuration. */ #define LINK_TOTAL NRF_SDH_BLE_PERIPHERAL_LINK_COUNT + \ NRF_SDH_BLE_CENTRAL_LINK_COUNT #define APP_ADV_INTERVAL 320 /**< 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 duration (180 seconds) in units of 10 milliseconds. */ #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 RELAY_ACTIVATION_INTERVAL APP_TIMER_TICKS(150) /**< RR interval interval (ticks). */ #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 DEAD_BEEF 0xDEADBEEF /**< Value used as error code on stack dump, can be used to identify stack location on stack unwind. */ /**@brief Priority of the application BLE event handler. * @note You shouldn't need to modify this value. */ #define APP_BLE_OBSERVER_PRIO 3 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. */ static ble_gap_sec_params_t sec_param; /**@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 } }; APP_TIMER_DEF(close_door_timer); /**< open/close door relay activation timer */ BLE_DS_DEF(m_ds); NRF_BLE_GATT_DEF(m_gatt); /**< GATT module instance. */ NRF_BLE_QWRS_DEF(m_qwr, NRF_SDH_BLE_TOTAL_LINK_COUNT); /**< Context for the Queued Write module.*/ /**@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); } static void close_door_handler(void *p_context) { NRF_LOG_INFO("set pin low"); nrf_gpio_pin_clear(RELAY_PIN); } /**@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); err_code = app_timer_create(&close_door_timer, APP_TIMER_MODE_SINGLE_SHOT, close_door_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); BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(&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); } /**@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_gap_adv_params_t adv_params; ble_uuid_t adv_uuids[] = {{BLE_UUID_DOOR_SERVICE, m_ds.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); // Start advertising. memset(&adv_params, 0, sizeof(adv_params)); adv_params.p_peer_addr = NULL; adv_params.filter_policy = BLE_GAP_ADV_FP_ANY; adv_params.interval = APP_ADV_INTERVAL; adv_params.properties.type = BLE_GAP_ADV_TYPE_CONNECTABLE_SCANNABLE_UNDIRECTED; adv_params.duration = APP_ADV_DURATION; adv_params.primary_phy = BLE_GAP_PHY_1MBPS; err_code = sd_ble_gap_adv_set_configure(&m_adv_handle, &m_adv_data, &adv_params); 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 starting application timers. */ static void open_door(void) { NRF_LOG_INFO("door opened"); //activation of the relay NRF_LOG_INFO("set pin high"); nrf_gpio_pin_set(RELAY_PIN); //nrf_delay_ms(150); //nrf_gpio_pin_clear(RELAY_PIN); // Start application timers to set the pin low uint32_t err_code = app_timer_start(close_door_timer, RELAY_ACTIVATION_INTERVAL, NULL); APP_ERROR_CHECK(err_code); } /**@brief Function for initializing services that will be used by the application. */ static void services_init(void) { ret_code_t err_code; nrf_ble_qwr_init_t qwr_init = {0}; // Initialize Queued Write Module instances. qwr_init.error_handler = nrf_qwr_error_handler; for (uint32_t i = 0; i < LINK_TOTAL; i++){ err_code = nrf_ble_qwr_init(&m_qwr[i], &qwr_init); APP_ERROR_CHECK(err_code); } // Initialize door service ble_ds_init_t ds_init; memset(&ds_init, 0, sizeof(ds_init)); ds_init.open_handler = open_handler; ds_init.key_handler = key_handler; ds_init.action_execute = open_door; err_code = ble_ds_init(&m_ds, &ds_init); APP_ERROR_CHECK(err_code); // Initialize Device Information Service. ble_dis_init_t dis_init; memset(&dis_init, 0, sizeof(dis_init)); ble_srv_ascii_to_utf8(&dis_init.manufact_name_str, (char *)MANUFACTURER_NAME); ble_srv_ascii_to_utf8(&dis_init.hw_rev_str, (char *)HARDWARE_REVISION); ble_srv_ascii_to_utf8(&dis_init.fw_rev_str, (char *)SOFTWARE_REVISION); BLE_GAP_CONN_SEC_MODE_SET_OPEN(&dis_init.dis_attr_md.read_perm); BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&dis_init.dis_attr_md.write_perm); err_code = ble_dis_init(&dis_init); APP_ERROR_CHECK(err_code); ble_conn_state_init(); } /**@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 = true; 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; err_code = sd_ble_gap_adv_start(m_adv_handle, APP_BLE_CONN_CFG_TAG); APP_ERROR_CHECK(err_code); } /**@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) { ret_code_t err_code; switch (p_evt->evt_id) { case PM_EVT_BONDED_PEER_CONNECTED: NRF_LOG_INFO("Connected to a previously bonded device."); break; case PM_EVT_CONN_SEC_SUCCEEDED: NRF_LOG_INFO("Connection secured. Role: %d. conn_handle: %d, Procedure: %d", ble_conn_state_role(p_evt->conn_handle), p_evt->conn_handle, p_evt->params.conn_sec_succeeded.procedure); // Update the rank of the peer. //err_code = pm_peer_rank_highest(p_evt->peer_id); break; case PM_EVT_CONN_SEC_FAILED: // In some cases, when securing fails, it can be restarted directly. Sometimes it can be // restarted, but only after changing some Security Parameters. Sometimes, it cannot be // restarted until the link is disconnected and reconnected. Sometimes it is impossible // to secure the link, or the peer device does not support it. How to handle this error // is highly application-dependent. break; case PM_EVT_CONN_SEC_CONFIG_REQ: { // A connected peer (central) is trying to pair, but the Peer Manager already has a bond // for that peer. Setting allow_repairing to false rejects the pairing request. // If this event is ignored (pm_conn_sec_config_reply is not called in the event // handler), the Peer Manager assumes allow_repairing to be false. pm_conn_sec_config_t conn_sec_config = {.allow_repairing = false}; pm_conn_sec_config_reply(p_evt->conn_handle, &conn_sec_config); } break; case PM_EVT_CONN_SEC_PARAMS_REQ: { // If you want to set different security parameters for particular peers, you can do // so here. Pass the desired security parameters to pm_conn_sec_params_reply(). err_code = pm_conn_sec_params_reply(p_evt->conn_handle, &sec_param, p_evt->params.conn_sec_params_req.p_context); APP_ERROR_CHECK(err_code); } break; case PM_EVT_STORAGE_FULL: { // Run garbage collection on the flash. err_code = fds_gc(); if (err_code == FDS_ERR_BUSY || err_code == FDS_ERR_NO_SPACE_IN_QUEUES) { // Retry. } else { APP_ERROR_CHECK(err_code); } } break; case PM_EVT_PEERS_DELETE_SUCCEEDED: { NRF_LOG_DEBUG("PM_EVT_PEERS_DELETE_SUCCEEDED"); advertising_start(); } break; case PM_EVT_PEER_DATA_UPDATE_FAILED: { // Assert. APP_ERROR_CHECK(p_evt->params.peer_data_update_failed.error); } break; case PM_EVT_PEER_DELETE_FAILED: { // Assert. APP_ERROR_CHECK(p_evt->params.peer_delete_failed.error); } break; case PM_EVT_PEERS_DELETE_FAILED: { // Assert. APP_ERROR_CHECK(p_evt->params.peers_delete_failed_evt.error); } break; case PM_EVT_ERROR_UNEXPECTED: { // Assert. APP_ERROR_CHECK(p_evt->params.error_unexpected.error); } break; case PM_EVT_LOCAL_DB_CACHE_APPLY_FAILED: { // The local database has likely changed, send service changed indications. pm_local_database_has_changed(); } break; case PM_EVT_CONN_SEC_START: case PM_EVT_PEER_DATA_UPDATE_SUCCEEDED: case PM_EVT_PEER_DELETE_SUCCEEDED: case PM_EVT_LOCAL_DB_CACHE_APPLIED: case PM_EVT_SERVICE_CHANGED_IND_SENT: case PM_EVT_SERVICE_CHANGED_IND_CONFIRMED: default: break; } } /**@brief Function for the Peer Manager initialization. */ static void peer_manager_init(void) { 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 = false; sec_param.mitm = false; sec_param.lesc = 0; sec_param.keypress = 0; sec_param.io_caps = BLE_GAP_IO_CAPS_NONE; sec_param.oob = false; sec_param.min_key_size = 7; sec_param.max_key_size = 16; sec_param.kdist_own.enc = 0; sec_param.kdist_own.id = 0; sec_param.kdist_peer.enc = 0; sec_param.kdist_peer.id = 0; 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); } /**@brief Function for handling the Connected event. * * @param[in] p_gap_evt GAP event received from the BLE stack. */ static void on_connected(const ble_gap_evt_t * const p_gap_evt) { ret_code_t err_code; uint32_t periph_link_cnt = ble_conn_state_peripheral_conn_count(); // Number of peripheral links. NRF_LOG_INFO("Connection with link 0x%x established.", p_gap_evt->conn_handle); // Assign connection handle to available instance of QWR module. for (uint32_t i = 0; i < NRF_SDH_BLE_PERIPHERAL_LINK_COUNT; ++i) { if (m_qwr[i].conn_handle == BLE_CONN_HANDLE_INVALID) { err_code = nrf_ble_qwr_conn_handle_assign(&m_qwr[i], p_gap_evt->conn_handle); APP_ERROR_CHECK(err_code); break; } } // Update LED if (periph_link_cnt != NRF_SDH_BLE_PERIPHERAL_LINK_COUNT) { // Continue advertising. More connections can be established because the maximum link count has not been reached. advertising_start(); } } /**@brief Function for handling the Disconnected event. * * @param[in] p_gap_evt GAP event received from the BLE stack. */ static void on_disconnected(ble_gap_evt_t const * const p_gap_evt) { ret_code_t err_code; uint32_t periph_link_cnt = ble_conn_state_peripheral_conn_count(); // Number of peripheral links. NRF_LOG_INFO("Connection 0x%x has been disconnected. Reason: 0x%X", p_gap_evt->conn_handle, p_gap_evt->params.disconnected.reason); if (periph_link_cnt == (NRF_SDH_BLE_PERIPHERAL_LINK_COUNT - 1)) { // Advertising is not running when all connections are taken, and must therefore be started. advertising_start(); } } /**@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) { NRF_LOG_INFO("ble_evt_handler"); ret_code_t err_code; switch (p_ble_evt->header.evt_id) { case BLE_GAP_EVT_CONNECTED: NRF_LOG_INFO("BLE_GAP_EVT_CONNECTED, %d", p_ble_evt->evt.gap_evt.conn_handle); on_connected(&p_ble_evt->evt.gap_evt); break; case BLE_GAP_EVT_DISCONNECTED: NRF_LOG_INFO("BLE_GAP_EVT_DISCONNECTED"); on_disconnected(&p_ble_evt->evt.gap_evt); break; /*case BLE_GAP_EVT_SEC_PARAMS_REQUEST: NRF_LOG_INFO("BLE_GAP_EVT_SEC_PARAMS_REQUEST, %d", p_ble_evt->evt.gap_evt.conn_handle); // Pairing not supported err_code = sd_ble_gap_sec_params_reply(p_ble_evt->evt.gap_evt.conn_handle, BLE_GAP_SEC_STATUS_PAIRING_NOT_SUPP, NULL, NULL); NRF_LOG_INFO("ERROR CODE, %d", err_code); 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: NRF_LOG_INFO("BLE_GATTS_EVT_SYS_ATTR_MISSING"); // No system attributes have been stored. err_code = sd_ble_gatts_sys_attr_set(p_ble_evt->evt.gap_evt.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; 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 the logging module. */ 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(); } } static void nrf_gpio_cfg_output_high_drive(uint32_t pin_number) { nrf_gpio_cfg(pin_number, NRF_GPIO_PIN_DIR_OUTPUT, NRF_GPIO_PIN_INPUT_DISCONNECT, NRF_GPIO_PIN_NOPULL, NRF_GPIO_PIN_H0H1, NRF_GPIO_PIN_NOSENSE); } static void gpio_init(void) { NRF_LOG_DEBUG("GPIO initialization."); // Set relay PIN pin as output //nrf_gpio_cfg_output(RELAY_PIN); nrf_gpio_cfg_output_high_drive(RELAY_PIN); // Set the pin low nrf_gpio_pin_clear(RELAY_PIN); } static void flash_init(void) { ret_code_t ret = fds_init(); APP_ERROR_CHECK(ret); } /**@brief Function for application main entry. */ int main(void) { // Initialize. log_init(); timers_init(); power_management_init(); ble_stack_init(); peer_manager_init(); flash_init(); gap_params_init(); gatt_init(); services_init(); advertising_init(); conn_params_init(); gpio_init(); // Start execution. NRF_LOG_INFO("Application started."); advertising_start(); // Enter main loop. for (;;) { idle_state_handle(); } } /** * @} */