Hello everyone,
I'm developing a custom software with SDK 15.3, SD 132 6.1.1 following the ble_app_hrs example for supporting Peer_Manager and Encrypted Link.
This is my initialization code:
log_init(); #ifndef BOARD_CUSTOM uart_init(); #endif timers_init(); #ifndef BOARD_CUSTOM buttons_leds_init(&erase_bonds); #endif power_management_init(); adc_init(); ble_stack_init(); gap_params_init(); gatt_init(); services_init(); advertising_init(); conn_params_init(); peer_manager_init(); timers_app_start(); advertising_start();
And the BLE functions are attached in the ble_app.c file.
I erased all the flash memory and programmed the softdevice and the application.
The application runs and starts_advertising. I can successfully connect to the device via nRF_Connect for Android:
00> <debug> nrf_ble_gatt: Requesting to update ATT MTU to 247 bytes on connection 0x0. 00> 00> <debug> nrf_ble_gatt: Updating data length to 251 on connection 0x0. 00> 00> <info> app: Connected 00> 00> <debug> nrf_ble_gatt: ATT MTU updated to 247 bytes on connection 0x0 (response). 00> 00> <info> app: Data len is set to 0xF4(244) 00> 00> <debug> app: ATT MTU exchange completed. central 0xF7 peripheral 0xF7 00> 00> <debug> nrf_ble_gatt: Data length updated to 123 on connection 0x0. 00> 00> <debug> nrf_ble_gatt: max_rx_octets: 123 00> 00> <debug> nrf_ble_gatt: max_tx_octets: 123 00> 00> <debug> nrf_ble_gatt: max_rx_time: 1096 00> 00> <debug> nrf_ble_gatt: max_tx_time: 1096 00> 00> <debug> app: ATT MTU exchange completed. central 0xF7 peripheral 0xF7 00> 00> <debug> nrf_ble_gatt: Peer on connection 0x0 requested a data length of 123 bytes. 00> 00> <debug> nrf_ble_gatt: Updating data length to 123 on connection 0x0. 00> 00> <debug> nrf_ble_gatt: Data length updated to 123 on connection 0x0. 00> 00> <debug> nrf_ble_gatt: max_rx_octets: 123 00> 00> <debug> nrf_ble_gatt: max_tx_octets: 123 00> 00> <debug> nrf_ble_gatt: max_rx_time: 1096 00> 00> <debug> nrf_ble_gatt: max_tx_time: 1096 00> 00> <debug> app: ATT MTU exchange completed. central 0xF7 peripheral 0xF7
However when I try to bond from nRF_Connect, it takes a while with no response after BLE_GAP_EVT_LESC_DHKEY_REQUEST and then it says "Bonding failed". This is the full log:
00> <debug> nrf_ble_lesc: Initialized nrf_crypto. 00> 00> <debug> nrf_ble_lesc: Initialized nrf_ble_lesc. 00> 00> <debug> nrf_ble_lesc: Generating ECC key pair 00> 00> Init finished. Debug logging for UART over RTT started. 00> 00> <debug> nrf_ble_gatt: Requesting to update ATT MTU to 247 bytes on connection 0x0. 00> 00> <debug> nrf_ble_gatt: Updating data length to 251 on connection 0x0. 00> 00> <info> app: Connected 00> 00> <debug> peer_manager_handler: Event PM_EVT_CONN_SEC_START 00> 00> <debug> peer_manager_handler: Connection security procedure started: role: Peripheral, conn_handle: 0, procedure: Bonding 00> 00> <debug> peer_manager_handler: Event PM_EVT_CONN_SEC_PARAMS_REQ 00> 00> <debug> peer_manager_handler: Security parameter request 00> 00> <debug> app: BLE_GAP_EVT_SEC_PARAMS_REQUEST 00> 00> <debug> nrf_ble_gatt: ATT MTU updated to 247 bytes on connection 0x0 (response). 00> 00> <info> app: Data len is set to 0xF4(244) 00> 00> <debug> app: ATT MTU exchange completed. central 0xF7 peripheral 0xF7 00> 00> <debug> nrf_ble_gatt: Data length updated to 123 on connection 0x0. 00> 00> <debug> nrf_ble_gatt: max_rx_octets: 123 00> 00> <debug> nrf_ble_gatt: max_tx_octets: 123 00> 00> <debug> nrf_ble_gatt: max_rx_time: 1096 00> 00> <debug> nrf_ble_gatt: max_tx_time: 1096 00> 00> <debug> app: ATT MTU exchange completed. central 0xF7 peripheral 0xF7 00> 00> <debug> nrf_ble_lesc: BLE_GAP_EVT_LESC_DHKEY_REQUEST 00> 00> <info> app: BLE_GAP_EVT_LESC_DHKEY_REQUEST 00> 00> <debug> nrf_ble_gatt: Peer on connection 0x0 requested a data length of 123 bytes. 00> 00> <debug> nrf_ble_gatt: Updating data length to 123 on connection 0x0. 00> 00> <debug> nrf_ble_gatt: Data length updated to 123 on connection 0x0. 00> 00> <debug> nrf_ble_gatt: max_rx_octets: 123 00> 00> <debug> nrf_ble_gatt: max_tx_octets: 123 00> 00> <debug> nrf_ble_gatt: max_rx_time: 1096 00> 00> <debug> nrf_ble_gatt: max_tx_time: 1096 00> 00> <debug> app: ATT MTU exchange completed. central 0xF7 peripheral 0xF7 00> 00> <debug> peer_manager_handler: Event PM_EVT_CONN_SEC_FAILED 00> 00> <info> peer_manager_handler: Connection security failed: role: Peripheral, conn_handle: 0x0, procedure: Bonding, error: 1 00> 00> <debug> peer_manager_ast: New peer has been added to the blacklist: 00> 00> <debug> peer_manager_ast: EE 32 .. .. .. .. |.2..oo 00> 00> <info> app: BLE_GAP_EVT_AUTH_STATUS: status=0x1 bond=0x0 lv4: 0 kdist_own:0x0 kdist_peer:0x0 00> 00> <info> app: Disconnected, reason 19. 00> 00> <debug> peer_manager_ast: Peer has been removed from the blacklist, its address: 00> 00> <debug> peer_manager_ast: EE 32 .. .. .. .. |.2..oo 00> 00> <debug> peer_manager_ast: Pairing waiting interval has expired for: 00> 00> <debug> peer_manager_ast: EE 32 .. .. .. .. |.2..oo
The error I get is:
<debug> peer_manager_handler: Event PM_EVT_CONN_SEC_FAILED
<info> peer_manager_handler: Connection security failed: role: Peripheral, conn_handle: 0x0, procedure: Bonding, error: 1
<info> app: BLE_GAP_EVT_AUTH_STATUS: status=0x1 bond=0x0 lv4: 0 kdist_own:0x0 kdist_peer:0x0
Which I think it means pairing maximum delay is over and hence bonding is cancelled.
Anyone knows what the problem is and can I solve it?
#include "ble_app.h" #include "nrf_log.h" //#include "nordic_common.h" //#include "nrf.h" #include "nrf_sdh.h" #include "nrf_sdh_soc.h" //#include "nrf_sdh_ble.h" //#include "ble_hci.h" //#include "ble_advdata.h" #include "ble_advertising.h" #include "ble_conn_params.h" #include "peer_manager.h" #include "peer_manager_handler.h" #include "fds.h" #include "nrf_ble_gatt.h" #include "nrf_ble_qwr.h" #include "app_timer.h" #include "ble_nus.h" #include "app_error.h" #include "app_uart.h" #include "bsp_btn_ble_app.h" #include "system.h" #include "sdk_errors.h" #include "sos_device.h" #define APP_BLE_CONN_CFG_TAG 1 /**< A tag identifying the SoftDevice BLE configuration. */ #define DEVICE_NAME "SOS_Device v0.2" //Stop Ojos Secos /**< Name of device. Will be included in the advertising data. */ #define NUS_SERVICE_UUID_TYPE BLE_UUID_TYPE_VENDOR_BEGIN /**< UUID type for the Nordic UART Service (vendor specific). */ #define APP_BLE_OBSERVER_PRIO 3 /**< Application's BLE observer priority. You shouldn't need to modify this value. */ #define APP_ADV_INTERVAL 64 /**< The advertising interval (in units of 0.625 ms. This value corresponds to 40 ms). */ #define APP_ADV_DURATION 18000 /**< The advertising duration (180 seconds) in units of 10 milliseconds. */ #define MIN_CONN_INTERVAL MSEC_TO_UNITS(20, UNIT_1_25_MS) /**< Minimum acceptable connection interval (20 ms), Connection interval uses 1.25 ms units. */ #define MAX_CONN_INTERVAL MSEC_TO_UNITS(75, UNIT_1_25_MS) /**< Maximum acceptable connection interval (75 ms), Connection interval uses 1.25 ms units. */ #define SLAVE_LATENCY 0 /**< Slave latency. */ #define CONN_SUP_TIMEOUT MSEC_TO_UNITS(4000, UNIT_10_MS) /**< Connection supervisory timeout (4 seconds), Supervision Timeout uses 10 ms units. */ #define FIRST_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(5000) /**< Time from initiating event (connect or start of notification) to first time sd_ble_gap_conn_param_update is called (5 seconds). */ #define NEXT_CONN_PARAMS_UPDATE_DELAY APP_TIMER_TICKS(30000) /**< Time between each call to sd_ble_gap_conn_param_update after the first call (30 seconds). */ #define MAX_CONN_PARAMS_UPDATE_COUNT 3 /**< Number of attempts before giving up the connection parameter negotiation. */ #define LESC_DEBUG_MODE 1 /**< Set to 1 to use LESC debug keys, allows you to use a sniffer to inspect traffic. */ #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. */ #define DEAD_BEEF 0xDEADBEEF /**< Value used as error code on stack dump, can be used to identify stack location on stack unwind. */ BLE_NUS_DEF(m_nus, NRF_SDH_BLE_TOTAL_LINK_COUNT); /**< BLE NUS service instance. */ NRF_BLE_GATT_DEF(m_gatt); /**< GATT module instance. */ NRF_BLE_QWR_DEF(m_qwr); /**< Context for the Queued Write module.*/ BLE_ADVERTISING_DEF(m_advertising); /**< Advertising module instance. */ static uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID; /**< Handle of the current connection. */ static uint16_t m_ble_nus_max_data_len = BLE_GATT_ATT_MTU_DEFAULT - 3; /**< Maximum length of data (in bytes) that can be transmitted to the peer by the Nordic UART service module. */ static ble_uuid_t m_adv_uuids[] = /**< Universally unique service identifier. */ { {BLE_UUID_NUS_SERVICE, NUS_SERVICE_UUID_TYPE} }; /**@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 analyse * 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 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); } /**@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(false); // TODO: Check if needed break; default: break; } } /**@brief Function for the GAP initialization. * * @details This function will set up all the necessary GAP (Generic Access Profile) parameters of * the device. It also sets the permissions and appearance. */ void gap_params_init(void) { uint32_t err_code; ble_gap_conn_params_t gap_conn_params; ble_gap_conn_sec_mode_t sec_mode; BLE_GAP_CONN_SEC_MODE_SET_OPEN(&sec_mode); err_code = sd_ble_gap_device_name_set(&sec_mode, (const uint8_t *) DEVICE_NAME, strlen(DEVICE_NAME)); APP_ERROR_CHECK(err_code); 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 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 the data from the Nordic UART Service. * * @details This function will process the data received from the Nordic UART BLE Service and send * it to the UART module. * * @param[in] p_evt Nordic UART Service event. */ /**@snippet [Handling the data received over BLE] */ static void nus_data_handler(ble_nus_evt_t * p_evt) { if (p_evt->type == BLE_NUS_EVT_RX_DATA) { NRF_LOG_DEBUG("Received data from BLE NUS. Writing data on UART."); NRF_LOG_HEXDUMP_DEBUG(p_evt->params.rx_data.p_data, p_evt->params.rx_data.length); #ifndef BOARD_CUSTOM uint32_t err_code; for (uint32_t i = 0; i < p_evt->params.rx_data.length; i++) { do { err_code = app_uart_put(p_evt->params.rx_data.p_data[i]); if ((err_code != NRF_SUCCESS) && (err_code != NRF_ERROR_BUSY)) { NRF_LOG_ERROR("Failed receiving NUS message. Error 0x%x. ", err_code); APP_ERROR_CHECK(err_code); } } while (err_code == NRF_ERROR_BUSY); } if (p_evt->params.rx_data.p_data[p_evt->params.rx_data.length - 1] == '\r') { while (app_uart_put('\n') == NRF_ERROR_BUSY); } #else //NRF_LOG_RAW_INFO("%s\r\n",p_evt->params.rx_data.p_data); #endif //NRF_LOG_RAW_INFO("rx %d bytes:\r\n %s\r\n", p_evt->params.rx_data.length, p_evt->params.rx_data.p_data); sos_analyze_frame((uint8_t *)p_evt->params.rx_data.p_data, p_evt->params.rx_data.length); } } /**@snippet [Handling the data received over BLE] */ /**@brief Function for initializing services that will be used by the application. */ void services_init(void) { uint32_t err_code; ble_nus_init_t nus_init; nrf_ble_qwr_init_t qwr_init = {0}; // 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 NUS. memset(&nus_init, 0, sizeof(nus_init)); nus_init.data_handler = nus_data_handler; err_code = ble_nus_init(&m_nus, &nus_init); APP_ERROR_CHECK(err_code); } /**@brief Function for handling an event from the Connection Parameters Module. * * @details This function will be called for all events in the Connection Parameters Module * which are passed to the application. * * @note All this function does is to disconnect. This could have been done by simply setting * the disconnect_on_fail config parameter, but instead we use the event handler * mechanism to demonstrate its use. * * @param[in] p_evt Event received from the Connection Parameters Module. */ static void on_conn_params_evt(ble_conn_params_evt_t * p_evt) { uint32_t err_code; if (p_evt->evt_type == BLE_CONN_PARAMS_EVT_FAILED) { err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_CONN_INTERVAL_UNACCEPTABLE); APP_ERROR_CHECK(err_code); } } /**@brief Function for handling errors from the Connection Parameters module. * * @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. */ void conn_params_init(void) { uint32_t err_code; ble_conn_params_init_t cp_init; memset(&cp_init, 0, sizeof(cp_init)); cp_init.p_conn_params = NULL; cp_init.first_conn_params_update_delay = FIRST_CONN_PARAMS_UPDATE_DELAY; cp_init.next_conn_params_update_delay = NEXT_CONN_PARAMS_UPDATE_DELAY; cp_init.max_conn_params_update_count = MAX_CONN_PARAMS_UPDATE_COUNT; cp_init.start_on_notify_cccd_handle = 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 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: advertising_start(); 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) { uint32_t err_code; switch (p_ble_evt->header.evt_id) { case BLE_GAP_EVT_CONNECTED: NRF_LOG_INFO("Connected"); err_code = bsp_indication_set(BSP_INDICATE_CONNECTED); APP_ERROR_CHECK(err_code); m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle; err_code = nrf_ble_qwr_conn_handle_assign(&m_qwr, m_conn_handle); APP_ERROR_CHECK(err_code); break; case BLE_GAP_EVT_DISCONNECTED: NRF_LOG_INFO("Disconnected, reason %d.", p_ble_evt->evt.gap_evt.params.disconnected.reason); // LED indication will be changed when advertising starts. m_conn_handle = BLE_CONN_HANDLE_INVALID; 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_GAP_EVT_SEC_PARAMS_REQUEST: NRF_LOG_DEBUG("BLE_GAP_EVT_SEC_PARAMS_REQUEST"); 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: NRF_LOG_DEBUG("GATT Server 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_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 the SoftDevice initialization. * * @details This function initializes the SoftDevice and the BLE event interrupt. */ 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 the Peer Manager initialization. */ 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); } /**@brief Function for handling events from the GATT library. */ void gatt_evt_handler(nrf_ble_gatt_t * p_gatt, nrf_ble_gatt_evt_t const * p_evt) { if ((m_conn_handle == p_evt->conn_handle) && (p_evt->evt_id == NRF_BLE_GATT_EVT_ATT_MTU_UPDATED)) { m_ble_nus_max_data_len = p_evt->params.att_mtu_effective - OPCODE_LENGTH - HANDLE_LENGTH; NRF_LOG_INFO("Data len is set to 0x%X(%d)", m_ble_nus_max_data_len, m_ble_nus_max_data_len); } NRF_LOG_DEBUG("ATT MTU exchange completed. central 0x%x peripheral 0x%x", p_gatt->att_mtu_desired_central, p_gatt->att_mtu_desired_periph); } /**@brief Function for initializing the GATT library. */ void gatt_init(void) { ret_code_t err_code; err_code = nrf_ble_gatt_init(&m_gatt, gatt_evt_handler); APP_ERROR_CHECK(err_code); err_code = nrf_ble_gatt_att_mtu_periph_set(&m_gatt, NRF_SDH_BLE_GATT_MAX_MTU_SIZE); APP_ERROR_CHECK(err_code); } /**@brief Function for initializing the Advertising functionality. */ void advertising_init(void) { uint32_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 = false; init.advdata.flags = BLE_GAP_ADV_FLAGS_LE_ONLY_LIMITED_DISC_MODE; // TODO: GENERAL MODE for advertising infinitely init.srdata.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]); init.srdata.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 starting advertising. */ void advertising_start(void) { uint32_t err_code = ble_advertising_start(&m_advertising, BLE_ADV_MODE_FAST); APP_ERROR_CHECK(err_code); } void ble_get_m_conn_handler(uint16_t *p_m_conn_handle){ p_m_conn_handle = &m_conn_handle; } void ble_get_m_advertising(ble_advertising_t *p_m_adverting){ p_m_adverting = &m_advertising; } void ble_get_m_nus(ble_nus_t *p_m_nus){ p_m_nus = &m_nus; } ret_code_t ble_send_data(uint8_t * p_data, uint16_t p_length){ ret_code_t err_code; err_code = ble_nus_data_send(&m_nus, p_data, &p_length, m_conn_handle); if ((err_code != NRF_ERROR_INVALID_STATE) && (err_code != NRF_ERROR_RESOURCES) && (err_code != NRF_ERROR_NOT_FOUND)){ APP_ERROR_CHECK(err_code); } return err_code; } /**@brief Function for stopping advertising. */ void advertising_stop(void) { ret_code_t err_code = NRF_SUCCESS; if (m_advertising.adv_handle != (uint8_t)BLE_GAP_ADV_SET_HANDLE_NOT_SET) { NRF_LOG_INFO("BLE Stop advertising."); err_code = sd_ble_gap_adv_stop(m_advertising.adv_handle); if (err_code != NRF_ERROR_INVALID_STATE) { APP_ERROR_CHECK(err_code); } m_advertising.adv_handle = (uint8_t)BLE_GAP_ADV_SET_HANDLE_NOT_SET; NRF_LOG_INFO("BLE advertising STOPPED"); } } void advertising_restart(void){ //uint32_t err_code = ble_advertising_restart_without_whitelist(&m_advertising); uint32_t err_code = sd_ble_gap_adv_start(m_advertising.adv_handle, m_advertising.conn_cfg_tag); APP_ERROR_CHECK(err_code); }