https://devzone.nordicsemi.com/f/nordic-q-a/44658/communication-probl
I want to change the code provided in this link to enter the password from the peripheral
https://devzone.nordicsemi.com/f/nordic-q-a/44658/communication-probl
I want to change the code provided in this link to enter the password from the peripheral
Hello,
You need to swap their IO capabilities:
So that the peripheral has the display, and the central has the keyboard. Then you need to set up the events that displays and enters the key on the other devices. I think it should be pretty straight forward.
best regards,
Edvin
Hello,
Thank you for your help. Now I can enter the password from the peripheral. But I also want this paring process to be controlled because right now it's automatic pairing and bonding as soon as I power it up. I want the paring process to start when I type "PAIR" in the serial debugging Assistant.Here's my code.
/** * Copyright (c) 2016 - 2021, 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. * */ #include <stdio.h> #include <stdint.h> #include <stdbool.h> #include "nordic_common.h" #include "app_error.h" #include "app_uart.h" #include "ble_db_discovery.h" #include "app_timer.h" #include "app_util.h" #include "bsp_btn_ble.h" #include "ble.h" #include "ble_gap.h" #include "ble_hci.h" #include "nrf_sdh.h" #include "nrf_sdh_ble.h" #include "nrf_sdh_soc.h" #include "ble_nus_c.h" #include "nrf_ble_gatt.h" #include "nrf_pwr_mgmt.h" #include "nrf_ble_scan.h" #include "nrf_log.h" #include "nrf_log_ctrl.h" #include "nrf_log_default_backends.h" ///////////Added for bonding////////// #include "peer_manager.h" #include "peer_manager_handler.h" #define SEC_PARAM_BOND 1 /**< Perform bonding. */ #define SEC_PARAM_MITM 1 /**< Enable MITM protection */ #define SEC_PARAM_LESC 0 /**< LE Secure Connections not enabled. */ #define SEC_PARAM_KEYPRESS 0 /**< Keypress notifications not enabled. */ #define SEC_PARAM_IO_CAPABILITIES BLE_GAP_IO_CAPS_DISPLAY_ONLY /**< Display Only. */ // -Shy #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. */ //////////////Added for bonding/////// #define APP_BLE_CONN_CFG_TAG 1 /**< Tag that refers to the BLE stack configuration set with @ref sd_ble_cfg_set. The default tag is @ref BLE_CONN_CFG_TAG_DEFAULT. */ #define APP_BLE_OBSERVER_PRIO 3 /**< BLE observer priority of the application. There is no need to modify this value. */ #define UART_TX_BUF_SIZE 256 /**< UART TX buffer size. */ #define UART_RX_BUF_SIZE 256 /**< UART RX buffer size. */ #define NUS_SERVICE_UUID_TYPE BLE_UUID_TYPE_VENDOR_BEGIN /**< UUID type for the Nordic UART Service (vendor specific). */ #define ECHOBACK_BLE_UART_DATA 1 /**< Echo the UART data that is received over the Nordic UART Service (NUS) back to the sender. */ BLE_NUS_C_DEF(m_ble_nus_c); /**< BLE Nordic UART Service (NUS) client instance. */ NRF_BLE_GATT_DEF(m_gatt); /**< GATT module instance. */ BLE_DB_DISCOVERY_DEF(m_db_disc); /**< Database discovery module instance. */ NRF_BLE_SCAN_DEF(m_scan); /**< Scanning Module instance. */ NRF_BLE_GQ_DEF(m_ble_gatt_queue, /**< BLE GATT Queue instance. */ NRF_SDH_BLE_CENTRAL_LINK_COUNT, NRF_BLE_GQ_QUEUE_SIZE); static uint16_t m_ble_nus_max_data_len = BLE_GATT_ATT_MTU_DEFAULT - OPCODE_LENGTH - HANDLE_LENGTH; /**< Maximum length of data (in bytes) that can be transmitted to the peer by the Nordic UART service module. */ /**@brief NUS UUID. */ static ble_uuid_t const m_nus_uuid = { .uuid = BLE_UUID_NUS_SERVICE, .type = NUS_SERVICE_UUID_TYPE }; ////////////Added for bonding/////////// // Static passkey #define STATIC_PASSKEY "123456" // static ble_opt_t m_static_pin_option; uint8_t passkey[] = STATIC_PASSKEY; ////////////Added for bonding/////////// ////////////Added for bonding/////////// static void scan_start(bool erase_bonds); ////////////Added for bonding/////////// /**@brief Function for handling asserts in the SoftDevice. * * @details This function is called in case of an assert in the SoftDevice. * * @warning This handler is only an example and is not meant for the 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(0xDEADBEEF, line_num, p_file_name); } /**@brief Function for handling the Nordic UART Service Client errors. * * @param[in] nrf_error Error code containing information about what went wrong. */ static void nus_error_handler(uint32_t nrf_error) { APP_ERROR_HANDLER(nrf_error); } ////////////Added for bonding////////////// /**@brief Clear bond information from persistent storage. */ static void delete_bonds(void) // -Shy { ret_code_t err_code; NRF_LOG_INFO("Erase bonds"); err_code = pm_peers_delete(); APP_ERROR_CHECK(err_code); } ////////////Added for bonding////////////// ///**@brief Function to start scanning. */ //static void scan_start(void) //{ // ret_code_t ret; // ret = nrf_ble_scan_start(&m_scan); // APP_ERROR_CHECK(ret); // ret = bsp_indication_set(BSP_INDICATE_SCANNING); // APP_ERROR_CHECK(ret); //} ////////////Added for bonding////////////// /**@brief Function for starting advertising. */ static void scan_start(bool erase_bonds) // -Shy { ret_code_t ret; if (erase_bonds == true) { delete_bonds(); // Advertising is started by PM_EVT_PEERS_DELETE_SUCCEEDED event. } else { ret = nrf_ble_scan_start(&m_scan); APP_ERROR_CHECK(ret); ret = bsp_indication_set(BSP_INDICATE_SCANNING); APP_ERROR_CHECK(ret); } } ////////////Added for bonding////////////// /**@brief Function for handling Scanning Module events. */ static void scan_evt_handler(scan_evt_t const * p_scan_evt) { ret_code_t err_code; switch(p_scan_evt->scan_evt_id) { case NRF_BLE_SCAN_EVT_CONNECTING_ERROR: { err_code = p_scan_evt->params.connecting_err.err_code; APP_ERROR_CHECK(err_code); } break; case NRF_BLE_SCAN_EVT_CONNECTED: { ble_gap_evt_connected_t const * p_connected = p_scan_evt->params.connected.p_connected; // Scan is automatically stopped by the connection. NRF_LOG_INFO("Connecting to target %02x%02x%02x%02x%02x%02x", p_connected->peer_addr.addr[0], p_connected->peer_addr.addr[1], p_connected->peer_addr.addr[2], p_connected->peer_addr.addr[3], p_connected->peer_addr.addr[4], p_connected->peer_addr.addr[5] ); } break; case NRF_BLE_SCAN_EVT_SCAN_TIMEOUT: { NRF_LOG_INFO("Scan timed out."); scan_start(false); } break; default: break; } } /**@brief Function for initializing the scanning and setting the filters. */ static void scan_init(void) { ret_code_t err_code; nrf_ble_scan_init_t init_scan; memset(&init_scan, 0, sizeof(init_scan)); init_scan.connect_if_match = true; init_scan.conn_cfg_tag = APP_BLE_CONN_CFG_TAG; err_code = nrf_ble_scan_init(&m_scan, &init_scan, scan_evt_handler); APP_ERROR_CHECK(err_code); err_code = nrf_ble_scan_filter_set(&m_scan, SCAN_UUID_FILTER, &m_nus_uuid); APP_ERROR_CHECK(err_code); err_code = nrf_ble_scan_filters_enable(&m_scan, NRF_BLE_SCAN_UUID_FILTER, false); APP_ERROR_CHECK(err_code); } /**@brief Function for handling database discovery events. * * @details This function is a callback function to handle events from the database discovery module. * Depending on the UUIDs that are discovered, this function forwards the events * to their respective services. * * @param[in] p_event Pointer to the database discovery event. */ static void db_disc_handler(ble_db_discovery_evt_t * p_evt) { ble_nus_c_on_db_disc_evt(&m_ble_nus_c, p_evt); } /**@brief Function for handling characters received by the Nordic UART Service (NUS). * * @details This function takes a list of characters of length data_len and prints the characters out on UART. * If @ref ECHOBACK_BLE_UART_DATA is set, the data is sent back to sender. */ static void ble_nus_chars_received_uart_print(uint8_t * p_data, uint16_t data_len) { ret_code_t ret_val; NRF_LOG_DEBUG("Receiving data."); NRF_LOG_HEXDUMP_DEBUG(p_data, data_len); for (uint32_t i = 0; i < data_len; i++) { do { ret_val = app_uart_put(p_data[i]); if ((ret_val != NRF_SUCCESS) && (ret_val != NRF_ERROR_BUSY)) { NRF_LOG_ERROR("app_uart_put failed for index 0x%04x.", i); APP_ERROR_CHECK(ret_val); } } while (ret_val == NRF_ERROR_BUSY); } if (p_data[data_len-1] == '\r') { while (app_uart_put('\n') == NRF_ERROR_BUSY); } if (ECHOBACK_BLE_UART_DATA) { // Send data back to the peripheral. do { ret_val = ble_nus_c_string_send(&m_ble_nus_c, p_data, data_len); if ((ret_val != NRF_SUCCESS) && (ret_val != NRF_ERROR_BUSY)) { NRF_LOG_ERROR("Failed sending NUS message. Error 0x%x. ", ret_val); APP_ERROR_CHECK(ret_val); } } while (ret_val == NRF_ERROR_BUSY); } } /**@brief Function for handling app_uart events. * * @details This function receives a single character from the app_uart module and appends it to * a string. The string is sent over BLE when the last character received is a * 'new line' '\n' (hex 0x0A) or if the string reaches the maximum data length. */ void uart_event_handle(app_uart_evt_t * p_event) { static uint8_t data_array[BLE_NUS_MAX_DATA_LEN]; static uint16_t index = 0; uint32_t ret_val; switch (p_event->evt_type) { /**@snippet [Handling data from UART] */ case APP_UART_DATA_READY: UNUSED_VARIABLE(app_uart_get(&data_array[index])); index++; if ((data_array[index - 1] == '\n') || (data_array[index - 1] == '\r') || (index >= (m_ble_nus_max_data_len))) { NRF_LOG_DEBUG("Ready to send data over BLE NUS"); NRF_LOG_HEXDUMP_DEBUG(data_array, index); do { ret_val = ble_nus_c_string_send(&m_ble_nus_c, data_array, index); if ( (ret_val != NRF_ERROR_INVALID_STATE) && (ret_val != NRF_ERROR_RESOURCES) ) { APP_ERROR_CHECK(ret_val); } } while (ret_val == NRF_ERROR_RESOURCES); index = 0; } break; /**@snippet [Handling data from UART] */ case APP_UART_COMMUNICATION_ERROR: NRF_LOG_ERROR("Communication error occurred while handling UART."); APP_ERROR_HANDLER(p_event->data.error_communication); break; case APP_UART_FIFO_ERROR: NRF_LOG_ERROR("Error occurred in FIFO module used by UART."); APP_ERROR_HANDLER(p_event->data.error_code); break; default: break; } } /**@brief Callback handling Nordic UART Service (NUS) client events. * * @details This function is called to notify the application of NUS client events. * * @param[in] p_ble_nus_c NUS client handle. This identifies the NUS client. * @param[in] p_ble_nus_evt Pointer to the NUS client event. */ /**@snippet [Handling events from the ble_nus_c module] */ static void ble_nus_c_evt_handler(ble_nus_c_t * p_ble_nus_c, ble_nus_c_evt_t const * p_ble_nus_evt) { ret_code_t err_code; switch (p_ble_nus_evt->evt_type) { case BLE_NUS_C_EVT_DISCOVERY_COMPLETE: NRF_LOG_INFO("Discovery complete."); err_code = ble_nus_c_handles_assign(p_ble_nus_c, p_ble_nus_evt->conn_handle, &p_ble_nus_evt->handles); APP_ERROR_CHECK(err_code); err_code = ble_nus_c_tx_notif_enable(p_ble_nus_c); APP_ERROR_CHECK(err_code); NRF_LOG_INFO("Connected to device with Nordic UART Service."); break; case BLE_NUS_C_EVT_NUS_TX_EVT: ble_nus_chars_received_uart_print(p_ble_nus_evt->p_data, p_ble_nus_evt->data_len); break; case BLE_NUS_C_EVT_DISCONNECTED: NRF_LOG_INFO("Disconnected."); scan_start(false); break; } } /**@snippet [Handling events from the ble_nus_c module] */ /** * @brief Function for handling shutdown events. * * @param[in] event Shutdown type. */ static bool shutdown_handler(nrf_pwr_mgmt_evt_t event) { ret_code_t err_code; err_code = bsp_indication_set(BSP_INDICATE_IDLE); APP_ERROR_CHECK(err_code); switch (event) { case NRF_PWR_MGMT_EVT_PREPARE_WAKEUP: // Prepare wakeup buttons. err_code = bsp_btn_ble_sleep_mode_prepare(); APP_ERROR_CHECK(err_code); break; default: break; } return true; } NRF_PWR_MGMT_HANDLER_REGISTER(shutdown_handler, APP_SHUTDOWN_HANDLER_PRIORITY); /**@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; ble_gap_evt_t const * p_gap_evt = &p_ble_evt->evt.gap_evt; switch (p_ble_evt->header.evt_id) { case BLE_GAP_EVT_CONNECTED: err_code = ble_nus_c_handles_assign(&m_ble_nus_c, p_ble_evt->evt.gap_evt.conn_handle, NULL); APP_ERROR_CHECK(err_code); err_code = bsp_indication_set(BSP_INDICATE_CONNECTED); APP_ERROR_CHECK(err_code); // start discovery of services. The NUS Client waits for a discovery result err_code = ble_db_discovery_start(&m_db_disc, p_ble_evt->evt.gap_evt.conn_handle); APP_ERROR_CHECK(err_code); // /////////Add for bonding/////////// // /** 唤起配对请求*/ // ble_gap_sec_params_t sec_params_auth; // sd_ble_gap_authenticate(p_ble_evt->evt.gap_evt.conn_handle,&sec_params_auth); // /////////Add for bonding/////////// break; case BLE_GAP_EVT_DISCONNECTED: NRF_LOG_INFO("Disconnected. conn_handle: 0x%x, reason: 0x%x", p_gap_evt->conn_handle, p_gap_evt->params.disconnected.reason); break; case BLE_GAP_EVT_TIMEOUT: if (p_gap_evt->params.timeout.src == BLE_GAP_TIMEOUT_SRC_CONN) { NRF_LOG_INFO("Connection Request timed out."); } break; /////////Remove for bonding/////////// /* case BLE_GAP_EVT_SEC_PARAMS_REQUEST: // 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); APP_ERROR_CHECK(err_code); break;*/ /////////Remove for bonding/////////// case BLE_GAP_EVT_CONN_PARAM_UPDATE_REQUEST: // Accepting parameters requested by peer. err_code = sd_ble_gap_conn_param_update(p_gap_evt->conn_handle, &p_gap_evt->params.conn_param_update_request.conn_params); 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_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_GAP_EVT_SEC_REQUEST: /** 返回配对请求*/ // ble_gap_sec_params_t sec_params; // memset(&sec_params,0,sizeof(ble_gap_sec_params_t)); // err_code = sd_ble_gap_sec_params_reply(p_ble_evt->evt.gap_evt.conn_handle,BLE_GAP_SEC_STATUS_SUCCESS,&sec_params,NULL); // printf("sd_ble_gap_sec_params_reply1\n"); // APP_ERROR_CHECK(err_code); // printf("sd_ble_gap_sec_params_reply2\n"); break; case BLE_GAP_EVT_AUTH_STATUS: if(p_ble_evt->evt.gap_evt.params.auth_status.auth_status == BLE_GAP_SEC_STATUS_SUCCESS) { NRF_LOG_INFO("Pair success!"); } else { NRF_LOG_INFO("Pair failed!"); sd_ble_gap_disconnect(p_ble_evt->evt.gap_evt.conn_handle, BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION); } break; default: break; } } /**@brief Function for initializing the BLE stack. * * @details Initializes the SoftDevice and the BLE event interrupt. */ static void ble_stack_init(void) { ret_code_t err_code; err_code = nrf_sdh_enable_request(); APP_ERROR_CHECK(err_code); // Configure the BLE stack using the default settings. // Fetch the start address of the application RAM. uint32_t ram_start = 0; err_code = nrf_sdh_ble_default_cfg_set(APP_BLE_CONN_CFG_TAG, &ram_start); APP_ERROR_CHECK(err_code); // Enable BLE stack. err_code = nrf_sdh_ble_enable(&ram_start); APP_ERROR_CHECK(err_code); // Register a handler for BLE events. NRF_SDH_BLE_OBSERVER(m_ble_observer, APP_BLE_OBSERVER_PRIO, ble_evt_handler, NULL); } /**@brief Function for handling events from the GATT library. */ void gatt_evt_handler(nrf_ble_gatt_t * p_gatt, nrf_ble_gatt_evt_t const * p_evt) { if (p_evt->evt_id == NRF_BLE_GATT_EVT_ATT_MTU_UPDATED) { NRF_LOG_INFO("ATT MTU exchange completed."); m_ble_nus_max_data_len = p_evt->params.att_mtu_effective - OPCODE_LENGTH - HANDLE_LENGTH; NRF_LOG_INFO("Ble NUS max data length set to 0x%X(%d)", m_ble_nus_max_data_len, m_ble_nus_max_data_len); } } /**@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_central_set(&m_gatt, NRF_SDH_BLE_GATT_MAX_MTU_SIZE); APP_ERROR_CHECK(err_code); } /**@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) { ret_code_t err_code; switch (event) { case BSP_EVENT_SLEEP: nrf_pwr_mgmt_shutdown(NRF_PWR_MGMT_SHUTDOWN_GOTO_SYSOFF); break; case BSP_EVENT_DISCONNECT: err_code = sd_ble_gap_disconnect(m_ble_nus_c.conn_handle, BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION); if (err_code != NRF_ERROR_INVALID_STATE) { APP_ERROR_CHECK(err_code); } break; default: break; } } /**@brief Function for initializing the UART. */ static void uart_init(void) { ret_code_t err_code; app_uart_comm_params_t const comm_params = { .rx_pin_no = RX_PIN_NUMBER, .tx_pin_no = TX_PIN_NUMBER, .rts_pin_no = RTS_PIN_NUMBER, .cts_pin_no = CTS_PIN_NUMBER, .flow_control = APP_UART_FLOW_CONTROL_DISABLED, .use_parity = false, .baud_rate = UART_BAUDRATE_BAUDRATE_Baud115200 }; APP_UART_FIFO_INIT(&comm_params, UART_RX_BUF_SIZE, UART_TX_BUF_SIZE, uart_event_handle, APP_IRQ_PRIORITY_LOWEST, err_code); APP_ERROR_CHECK(err_code); } /**@brief Function for initializing the Nordic UART Service (NUS) client. */ static void nus_c_init(void) { ret_code_t err_code; ble_nus_c_init_t init; init.evt_handler = ble_nus_c_evt_handler; init.error_handler = nus_error_handler; init.p_gatt_queue = &m_ble_gatt_queue; err_code = ble_nus_c_init(&m_ble_nus_c, &init); APP_ERROR_CHECK(err_code); } ///////////Added for bonding/////////// /**@brief Function for handling Peer Manager events. * * @param[in] p_evt Peer Manager event. */ static void pm_evt_handler(pm_evt_t const * p_evt) { pm_handler_on_pm_evt(p_evt); // pm_handler_disconnect_on_sec_failure(p_evt); pm_handler_flash_clean(p_evt); switch (p_evt->evt_id) { case PM_EVT_PEERS_DELETE_SUCCEEDED: scan_start(false); break; default: break; } } /////////////Added for bonding///////////// //////////////Added for bonding////////////// /**@brief Function for initializing the Peer Manager. * * @param[in] erase_bonds Indicates whether the bonding information must be cleared from * persistent storage during the initialization of the Peer Manager. */ static void peer_manager_init() { ret_code_t err_code; ble_gap_sec_params_t sec_param; err_code = pm_init(); APP_ERROR_CHECK(err_code); err_code = pm_register(pm_evt_handler); 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); } //////////////Added for bonding////////////// /**@brief Function for initializing buttons and leds. */ static void buttons_leds_init(void) { ret_code_t err_code; bsp_event_t startup_event; err_code = bsp_init(BSP_INIT_LEDS, bsp_event_handler); APP_ERROR_CHECK(err_code); err_code = bsp_btn_ble_init(NULL, &startup_event); APP_ERROR_CHECK(err_code); } /**@brief Function for initializing the timer. */ static void timer_init(void) { ret_code_t err_code = app_timer_init(); APP_ERROR_CHECK(err_code); } /**@brief Function for initializing the nrf log 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 initializing the database discovery module. */ static void db_discovery_init(void) { ble_db_discovery_init_t db_init; memset(&db_init, 0, sizeof(ble_db_discovery_init_t)); db_init.evt_handler = db_disc_handler; db_init.p_gatt_queue = &m_ble_gatt_queue; ret_code_t err_code = ble_db_discovery_init(&db_init); APP_ERROR_CHECK(err_code); } /**@brief Function for handling the idle state (main loop). * * @details Handles any pending log operations, then sleeps until the next event occurs. */ static void idle_state_handle(void) { if (NRF_LOG_PROCESS() == false) { nrf_pwr_mgmt_run(); } } /**@brief Function for setting the BLE transmit power. */ static void ble_tx_power_set(void) { int8_t tx_power_level = RADIO_TXPOWER_TXPOWER_Max; // ret_code_t err_code; sd_ble_gap_tx_power_set(BLE_GAP_TX_POWER_ROLE_SCAN_INIT, NULL, tx_power_level); // APP_ERROR_CHECK(err_code); } //设置静态密钥 static void set_static_passkey() { //定义一个BLE选项结构体变量 static ble_opt_t m_static_pin_option; //定义一个保存静态密码的数组 uint8_t passkey[] = STATIC_PASSKEY; //m_static_pin_option中的密钥指针指向存放静态密钥的数组 m_static_pin_option.gap_opt.passkey.p_passkey = &passkey[0]; //设置GAP选项中的密钥选项的值 uint32_t err_code = sd_ble_opt_set(BLE_GAP_OPT_PASSKEY, &m_static_pin_option); //检查函数返回值 APP_ERROR_CHECK(err_code); } int main(void) { // Initialize. log_init(); timer_init(); uart_init(); buttons_leds_init(); db_discovery_init(); power_management_init(); ble_stack_init(); set_static_passkey(); gatt_init(); nus_c_init(); scan_init(); ///////Added for bonding///////////// peer_manager_init(); ///////Added for bonding///////////// // Start execution. printf("BLE UART central example started.\r\n"); NRF_LOG_INFO("BLE UART central example started."); ble_tx_power_set(); scan_start(false); // Enter main loop. for (;;) { idle_state_handle(); } }
/** * Copyright (c) 2014 - 2021, 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_uart_over_ble_main main.c * @{ * @ingroup ble_sdk_app_nus_eval * @brief UART over BLE application main file. * * This file contains the source code for a sample application that uses the Nordic UART service. * This application uses the @ref srvlib_conn_params module. */ #include <stdint.h> #include <string.h> #include "nordic_common.h" #include "nrf.h" #include "ble_hci.h" #include "ble_advdata.h" #include "ble_advertising.h" #include "ble_conn_params.h" #include "nrf_sdh.h" #include "nrf_sdh_soc.h" #include "nrf_sdh_ble.h" #include "nrf_ble_gatt.h" #include "nrf_ble_qwr.h" #include "app_timer.h" #include "ble_nus.h" #include "app_uart.h" #include "app_util_platform.h" #include "bsp_btn_ble.h" #include "nrf_pwr_mgmt.h" #if defined (UART_PRESENT) #include "nrf_uart.h" #endif #if defined (UARTE_PRESENT) #include "nrf_uarte.h" #endif #include "nrf_log.h" #include "nrf_log_ctrl.h" #include "nrf_log_default_backends.h" ///////////Added for bonding//////////// #include "peer_manager.h" #include "peer_manager_handler.h" #define SEC_PARAM_BOND 1 /**< Perform bonding. */ #define SEC_PARAM_MITM 1 /**< Man In The Middle protection is enabled. */ #define SEC_PARAM_LESC 0 /**< LE Secure Connections not enabled. */ #define SEC_PARAM_KEYPRESS 0 /**< Keypress notifications not enabled. */ #define SEC_PARAM_IO_CAPABILITIES BLE_GAP_IO_CAPS_KEYBOARD_ONLY /**< Keyboard Only. */ #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. */ ///////////Added for bonding//////////// #define APP_BLE_CONN_CFG_TAG 1 /**< A tag identifying the SoftDevice BLE configuration. */ #define DEVICE_NAME "Nordic_UART" /**< 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(10, UNIT_1_25_MS) //20 /**< Minimum acceptable connection interval (20 ms), Connection interval uses 1.25 ms units. */ #define MAX_CONN_INTERVAL MSEC_TO_UNITS(15, UNIT_1_25_MS) //75 /**< 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(200, UNIT_10_MS) //4000 /**< 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 DEAD_BEEF 0xDEADBEEF /**< Value used as error code on stack dump, can be used to identify stack location on stack unwind. */ #define UART_TX_BUF_SIZE 256 /**< UART TX buffer size. */ #define UART_RX_BUF_SIZE 256 /**< UART RX buffer size. */ 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} }; ////////////Added for bonding/////////// // Static passkey #define STATIC_PASSKEY "123456" //static ble_opt_t m_static_pin_option; uint8_t passkey[] = STATIC_PASSKEY; ////////////Added for bonding/////////// /**@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 Function for starting advertising. */ static void advertising_start(void) { uint32_t err_code = ble_advertising_start(&m_advertising, BLE_ADV_MODE_FAST); APP_ERROR_CHECK(err_code); } /**@brief Function for initializing the timer module. */ static void timers_init(void) { ret_code_t err_code = app_timer_init(); APP_ERROR_CHECK(err_code); } /**@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. */ static 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) { uint32_t err_code; 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); 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); } } } /**@snippet [Handling the data received over BLE] */ /**@brief Function for initializing services that will be used by the application. */ static 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. */ static 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 putting the chip into sleep mode. * * @note This function will not return. */ static void sleep_mode_enter(void) { uint32_t err_code = bsp_indication_set(BSP_INDICATE_IDLE); APP_ERROR_CHECK(err_code); // Prepare wakeup buttons. err_code = bsp_btn_ble_sleep_mode_prepare(); APP_ERROR_CHECK(err_code); // Go to system-off mode (this function will not return; wakeup will cause a reset). err_code = sd_power_system_off(); APP_ERROR_CHECK(err_code); } /**@brief Function for handling advertising events. * * @details This function will be called for advertising events which are passed to the application. * * @param[in] ble_adv_evt Advertising event. */ static void on_adv_evt(ble_adv_evt_t ble_adv_evt) { // 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 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"); // LED1 OFF err_code = bsp_indication_set(BSP_INDICATE_ALERT_OFF); 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); /////////Added for bonding//////// err_code = pm_conn_secure(m_conn_handle, false); printf("pm_conn_secure1\n"); if (err_code != NRF_ERROR_BUSY) { APP_ERROR_CHECK(err_code); printf("pm_conn_secure2\n"); } /////////Added for bonding//////// break; case BLE_GAP_EVT_DISCONNECTED: NRF_LOG_INFO("Disconnected"); // LED1 ON err_code = bsp_indication_set(BSP_INDICATE_CONNECTED); APP_ERROR_CHECK(err_code); // 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; /////////Added for bonding/////////// case BLE_GAP_EVT_AUTH_KEY_REQUEST: err_code = sd_ble_gap_auth_key_reply(m_conn_handle, BLE_GAP_AUTH_KEY_TYPE_PASSKEY, &passkey[0]); printf("sd_ble_gap_auth_key_reply1\n"); // asm("nop"); APP_ERROR_CHECK(err_code); printf("sd_ble_gap_auth_key_reply2\n"); break; /////////Added for bonding/////////// /////////Removed for ebonding process////////// /*case BLE_GAP_EVT_SEC_PARAMS_REQUEST: // Pairing not supported err_code = sd_ble_gap_sec_params_reply(m_conn_handle, BLE_GAP_SEC_STATUS_PAIRING_NOT_SUPP, NULL, NULL); APP_ERROR_CHECK(err_code); break;*/ /* case BLE_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;*/ /////////Removed for bonding process////////// 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; default: // No implementation needed. break; } } /**@brief Function for the SoftDevice initialization. * * @details This function initializes the SoftDevice and the BLE event interrupt. */ static void ble_stack_init(void) { ret_code_t err_code; err_code = nrf_sdh_enable_request(); APP_ERROR_CHECK(err_code); // Configure the BLE stack using the default settings. // Fetch the start address of the application RAM. uint32_t ram_start = 0; err_code = nrf_sdh_ble_default_cfg_set(APP_BLE_CONN_CFG_TAG, &ram_start); APP_ERROR_CHECK(err_code); // Enable BLE stack. err_code = nrf_sdh_ble_enable(&ram_start); APP_ERROR_CHECK(err_code); // Register a handler for BLE events. NRF_SDH_BLE_OBSERVER(m_ble_observer, APP_BLE_OBSERVER_PRIO, ble_evt_handler, NULL); } /**@brief Function for handling events from the 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 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 BSP_EVENT_SLEEP: sleep_mode_enter(); break; case BSP_EVENT_DISCONNECT: err_code = sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION); if (err_code != NRF_ERROR_INVALID_STATE) { APP_ERROR_CHECK(err_code); } break; case BSP_EVENT_WHITELIST_OFF: if (m_conn_handle == BLE_CONN_HANDLE_INVALID) { err_code = ble_advertising_restart_without_whitelist(&m_advertising); if (err_code != NRF_ERROR_INVALID_STATE) { APP_ERROR_CHECK(err_code); } } break; default: break; } } /**@brief Function for handling app_uart events. * * @details This function will receive a single character from the app_uart module and append it to * a string. The string will be be sent over BLE when the last character received was a * 'new line' '\n' (hex 0x0A) or if the string has reached the maximum data length. */ /**@snippet [Handling the data received over UART] */ void uart_event_handle(app_uart_evt_t * p_event) { static uint8_t data_array[BLE_NUS_MAX_DATA_LEN]; static uint8_t index = 0; uint32_t err_code; switch (p_event->evt_type) { case APP_UART_DATA_READY: UNUSED_VARIABLE(app_uart_get(&data_array[index])); index++; if ((data_array[index - 1] == '\n') || (data_array[index - 1] == '\r') || (index >= m_ble_nus_max_data_len)) { if (index > 1) { NRF_LOG_DEBUG("Ready to send data over BLE NUS"); NRF_LOG_HEXDUMP_DEBUG(data_array, index); do { uint16_t length = (uint16_t)index; err_code = ble_nus_data_send(&m_nus, data_array, &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); } } while (err_code == NRF_ERROR_RESOURCES); } index = 0; } break; case APP_UART_COMMUNICATION_ERROR: APP_ERROR_HANDLER(p_event->data.error_communication); break; case APP_UART_FIFO_ERROR: APP_ERROR_HANDLER(p_event->data.error_code); break; default: break; } } /**@snippet [Handling the data received over UART] */ /**@brief Function for initializing the UART module. */ /**@snippet [UART Initialization] */ static void uart_init(void) { uint32_t err_code; app_uart_comm_params_t const comm_params = { .rx_pin_no = RX_PIN_NUMBER, .tx_pin_no = TX_PIN_NUMBER, .rts_pin_no = RTS_PIN_NUMBER, .cts_pin_no = CTS_PIN_NUMBER, .flow_control = APP_UART_FLOW_CONTROL_DISABLED, .use_parity = false, #if defined (UART_PRESENT) .baud_rate = NRF_UART_BAUDRATE_115200 #else .baud_rate = NRF_UARTE_BAUDRATE_115200 #endif }; APP_UART_FIFO_INIT(&comm_params, UART_RX_BUF_SIZE, UART_TX_BUF_SIZE, uart_event_handle, APP_IRQ_PRIORITY_LOWEST, err_code); APP_ERROR_CHECK(err_code); } /**@snippet [UART Initialization] */ /**@brief Function for initializing the Advertising functionality. */ static void advertising_init(void) { uint32_t err_code; ble_advertising_init_t init; int8_t tx_power_level = 8; 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; 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); err_code = sd_ble_gap_tx_power_set(BLE_GAP_TX_POWER_ROLE_ADV, m_advertising.adv_handle, tx_power_level); APP_ERROR_CHECK(err_code); if (err_code == NRF_SUCCESS) { // 发射功率设置成功 NRF_LOG_INFO("Transmit power set successfully."); } else { // 发射功率设置失败 NRF_LOG_INFO("Failed to set transmit power. Error code: %d\n", err_code); } } /**@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_LEDS | BSP_INIT_BUTTONS, bsp_event_handler); 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); } ///////////Added for bonding///////////// /**@brief Function for handling Peer Manager events. * * @param[in] p_evt Peer Manager event. */ static void pm_evt_handler(pm_evt_t const * p_evt) { pm_handler_on_pm_evt(p_evt); pm_handler_flash_clean(p_evt); switch (p_evt->evt_id) { case PM_EVT_PEERS_DELETE_SUCCEEDED: advertising_start(); break; default: break; } } ///////////Added for bonding//////////// /**@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); err_code = pm_register(pm_evt_handler); APP_ERROR_CHECK(err_code); ble_gap_sec_params_t sec_param; memset(&sec_param, 0, sizeof(ble_gap_sec_params_t)); 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); } /**@brief Function for initializing the nrf log 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(); } } /**@brief Application main function. */ int main(void) { bool erase_bonds; // Initialize. uart_init(); log_init(); timers_init(); buttons_leds_init(&erase_bonds); power_management_init(); ble_stack_init(); gap_params_init(); gatt_init(); services_init(); advertising_init(); conn_params_init(); /////////Added for bonding////////// peer_manager_init(); /////////Added for bonding////////// // Start execution. printf("\r\nUART started.\r\n"); NRF_LOG_INFO("Debug logging for UART over RTT started."); advertising_start(); // Enter main loop. for (;;) { idle_state_handle(); } } /** * @} */
Hello,
The pairing/bonding process is initiated when one of the devices calls "pm_conn_secure()". In your case, I see that you call it from the central in the BLE_GAP_EVT_CONNECTED event in ble_evt_handler(). Remove this call, and add it wherever you want to (such as in the event of a UART interrupt, if the user has input "PAIR".
BR,
Edvin
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