OS ：Windows7
HARD :(Taiyo Yuden)EBSHSN Series Evaluation Board
CPU :(Nordic) nRF52832 / ARM
Cortex
-M4F 32 bit processor 28-pin Land Grid Array / 15GPIOs / SWD
Soft Ver:nRF5_SDK_15.0.0_a53641a
Using [ble_app_multilink_central] and [ble_app_uart_c], I created a program that performs multi-link UART communication, but immediately after the first peripheral was linked Error 0x011 will be issued. Please tell me the possible causes. Thanking you in advance.12345678910111213141516171819/*---------------------------------------------------------------------------*//* multilink uart process *//*---------------------------------------------------------------------------*/#include <stdio.h>#include <stdint.h>#include "nordic_common.h"#include "ble_db_discovery.h"#include "app_timer.h"#include "bsp_btn_ble.h"#include "ble.h"#include "ble_hci.h"#include "nrf_sdh.h"#include "nrf_sdh_ble.h"#include "ble_advdata.h"#include "nrf_ble_gatt.h"#include "nrf_pwr_mgmt.h"/*-< multi setting >-*/#include <string.h>#include "ble_advertising.h"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX/*---------------------------------------------------------------------------*/ /* multilink uart process */ /*---------------------------------------------------------------------------*/ #include <stdio.h> #include <stdint.h> #include "nordic_common.h" #include "ble_db_discovery.h" #include "app_timer.h" #include "bsp_btn_ble.h" #include "ble.h" #include "ble_hci.h" #include "nrf_sdh.h" #include "nrf_sdh_ble.h" #include "ble_advdata.h" #include "nrf_ble_gatt.h" #include "nrf_pwr_mgmt.h" /*-< multi setting >-*/ #include <string.h> #include "ble_advertising.h" #include "ble_conn_params.h" #include "ble_conn_state.h" /*-< uart setting >-*/ #include <stdbool.h> #include "app_error.h" #include "app_uart.h" #include "app_util.h" #include "ble_gap.h" #include "nrf_sdh_soc.h" #include "ble_nus_c.h" /*-< log setting >-*/ #include "nrf_log.h" #include "nrf_log_ctrl.h" #include "nrf_log_default_backends.h" /*------------------------------------------------------------------------------*/ #define APP_BLE_CONN_CFG_TAG 1 /**< A tag that refers to the BLE stack configuration we set with @ref sd_ble_cfg_set. Default tag is @ref BLE_CONN_CFG_TAG_DEFAULT. */ #define APP_BLE_OBSERVER_PRIO 3 /**< Application's BLE observer priority. You shoulnd't need to modify this value. */ #define SCAN_INTERVAL 0x00A0 /**< Determines scan interval in units of 0.625 millisecond. */ #define SCAN_WINDOW 0x0050 /**< Determines scan window in units of 0.625 millisecond. */ #define SCAN_DURATION 0x0000 /**< Timout when scanning. 0x0000 disables timeout. */ #define MIN_CONNECTION_INTERVAL MSEC_TO_UNITS(20, UNIT_1_25_MS) /**< Determines minimum connection interval in millisecond. */ #define MAX_CONNECTION_INTERVAL MSEC_TO_UNITS(75, UNIT_1_25_MS) /**< Determines maximum connection interval in millisecond. */ #define SLAVE_LATENCY 0 /**< Determines slave latency in counts of connection events. */ #define SUPERVISION_TIMEOUT MSEC_TO_UNITS(4000, UNIT_10_MS) /**< Determines supervision time-out in units of 10 millisecond. */ /*-< uart setting >-*/ #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 0 /**< Echo the UART data that is received over the Nordic UART Service back to the sender. */ /*------------------------------------------------------------------------------*/ NRF_BLE_GATT_DEF(m_gatt); /**< GATT module instance. */ BLE_NUS_C_ARRAY_DEF(m_ble_nus_c, NRF_SDH_BLE_CENTRAL_LINK_COUNT); /**< BLE NUS service client instance. */ BLE_DB_DISCOVERY_ARRAY_DEF(m_db_disc, NRF_SDH_BLE_CENTRAL_LINK_COUNT); /**< DB discovery module instance. */ /*------------------------------------------------------------------------------*/ static char const m_target_periph_name[] = "Nordic_UART"; /**< Name of the device we try to connect to. This name is searched for in the scan report data*/ 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. */ #if 0 static ble_uuid_t const m_nus_uuid = { .uuid = BLE_UUID_NUS_SERVICE, .type = NUS_SERVICE_UUID_TYPE }; #endif static uint8_t m_scan_buffer_data[BLE_GAP_SCAN_BUFFER_MIN]; /**< buffer where advertising reports will be stored by the SoftDevice. */ /**@brief Pointer to the buffer where advertising reports will be stored by the SoftDevice. */ static ble_data_t m_scan_buffer = { m_scan_buffer_data, BLE_GAP_SCAN_BUFFER_MIN }; /** @brief Parameters used when scanning. */ static ble_gap_scan_params_t const m_scan_params = { .active = 0, .interval = SCAN_INTERVAL, .window = SCAN_WINDOW, .timeout = SCAN_DURATION, .scan_phys = BLE_GAP_PHY_1MBPS, .filter_policy = BLE_GAP_SCAN_FP_ACCEPT_ALL, }; /**@brief Connection parameters requested for connection. */ static ble_gap_conn_params_t const m_connection_param = { (uint16_t)MIN_CONNECTION_INTERVAL, (uint16_t)MAX_CONNECTION_INTERVAL, (uint16_t)SLAVE_LATENCY, (uint16_t)SUPERVISION_TIMEOUT }; /**@brief Function to handle asserts in the SoftDevice. * * @details This function will be called in case of an assert in the SoftDevice. * * @warning This handler is an example only and does not fit a final product. You need to analyze * how your product is supposed to react in case of Assert. * @warning On assert from the SoftDevice, the system can only recover on reset. * * @param[in] line_num Line number of the failing ASSERT call. * @param[in] 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 to start scanning. */ static void scan_start(void) { ret_code_t ret; (void) sd_ble_gap_scan_stop(); /* multlink function */ NRF_LOG_INFO("Start scanning for device name %s.", (uint32_t)m_target_periph_name); ret = sd_ble_gap_scan_start(&m_scan_params, &m_scan_buffer); APP_ERROR_CHECK(ret); // Turn on the LED to signal scanning. // bsp_board_led_on(CENTRAL_SCANNING_LED); } /**@brief Function for handling characters received by the Nordic UART Service. * * @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); } /*-< Echo Back Proc >-*/ if (ECHOBACK_BLE_UART_DATA) { for (uint32_t i = 0; i< NRF_SDH_BLE_CENTRAL_LINK_COUNT; i++) { // Send data back to peripheral. do { ret_val = ble_nus_c_string_send(&m_ble_nus_c[i], 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 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. */ 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') || (index >= (m_ble_nus_max_data_len))) { NRF_LOG_DEBUG("Ready to send data over BLE NUS"); NRF_LOG_HEXDUMP_DEBUG(data_array, index); for (uint32_t i = 0; i< NRF_SDH_BLE_CENTRAL_LINK_COUNT; i++) { do { ret_val = ble_nus_c_string_send(&m_ble_nus_c[i], data_array, index); if ( (ret_val != NRF_ERROR_INVALID_STATE) && (ret_val != NRF_ERROR_BUSY) ) { APP_ERROR_CHECK(ret_val); } } while (ret_val == NRF_ERROR_BUSY); } 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 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: err_code = app_button_enable(); APP_ERROR_CHECK(err_code); 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(); break; default: // No implementation needed. break; } } /**@snippet [Handling events from the ble_nus_c module] */ /**@brief Function for handling the advertising report BLE event. * * @param[in] p_adv_report Advertising report from the SoftDevice. */ static void on_adv_report(ble_gap_evt_adv_report_t const * p_adv_report) { ret_code_t err_code; if (ble_advdata_name_find(p_adv_report->data.p_data, p_adv_report->data.len, m_target_periph_name)) { // Name is a match, initiate connection. err_code = sd_ble_gap_connect(&p_adv_report->peer_addr, &m_scan_params, &m_connection_param, APP_BLE_CONN_CFG_TAG); if (err_code != NRF_SUCCESS) { NRF_LOG_ERROR("Connection Request Failed, reason %d", err_code); } } else { err_code = sd_ble_gap_scan_start(NULL, &m_scan_buffer); APP_ERROR_CHECK(err_code); } } /**@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; // For readability. ble_gap_evt_t const * p_gap_evt = &p_ble_evt->evt.gap_evt; switch (p_ble_evt->header.evt_id) { // Upon connection, check which peripheral has connected, initiate DB // discovery, update LEDs status and resume scanning if necessary. case BLE_GAP_EVT_CONNECTED: { NRF_LOG_INFO("Connection 0x%x established, starting DB discovery.", p_gap_evt->conn_handle); APP_ERROR_CHECK_BOOL(p_gap_evt->conn_handle < NRF_SDH_BLE_CENTRAL_LINK_COUNT); err_code = ble_nus_c_handles_assign(&m_ble_nus_c[p_gap_evt->conn_handle], p_ble_evt->evt.gap_evt.conn_handle, NULL); APP_ERROR_CHECK(err_code); err_code = ble_db_discovery_start(&m_db_disc[p_gap_evt->conn_handle], p_ble_evt->evt.gap_evt.conn_handle); if (err_code != NRF_ERROR_BUSY) { APP_ERROR_CHECK(err_code); } // Update LEDs status, and check if we should be looking for more // peripherals to connect to. if (ble_conn_state_central_conn_count() != NRF_SDH_BLE_CENTRAL_LINK_COUNT) { scan_start(); } } break; // BLE_GAP_EVT_CONNECTED // Upon disconnection, reset the connection handle of the peer which disconnected, update // the LEDs status and start scanning again. case BLE_GAP_EVT_DISCONNECTED: { NRF_LOG_INFO("LBS central link 0x%x disconnected (reason: 0x%x)", p_gap_evt->conn_handle, p_gap_evt->params.disconnected.reason); if (ble_conn_state_central_conn_count() == 0) { err_code = app_button_disable(); APP_ERROR_CHECK(err_code); } // Start scanning scan_start(); } break; case BLE_GAP_EVT_ADV_REPORT: on_adv_report(&p_gap_evt->params.adv_report); break; case BLE_GAP_EVT_TIMEOUT: { // We have not specified a timeout for scanning, so only connection attemps can timeout. if (p_gap_evt->params.timeout.src == BLE_GAP_TIMEOUT_SRC_CONN) { NRF_LOG_DEBUG("Connection request timed out."); } } break; case BLE_GAP_EVT_CONN_PARAM_UPDATE_REQUEST: { NRF_LOG_DEBUG("BLE_GAP_EVT_CONN_PARAM_UPDATE_REQUEST."); // Accept 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; default: // No implementation needed. break; } } static void nus_c_init(void) { ret_code_t err_code; ble_nus_c_init_t nus_c_init_obj; nus_c_init_obj.evt_handler = ble_nus_c_evt_handler; for (uint32_t i = 0; i < NRF_SDH_BLE_CENTRAL_LINK_COUNT; i++) { err_code = ble_nus_c_init(&m_ble_nus_c[i], &nus_c_init_obj); APP_ERROR_CHECK(err_code); } } /**@brief Function for initializing the BLE stack. * * @details Initializes the SoftDevice and the BLE event interrupts. */ 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 database discovery events. * * @details This function is callback function to handle events from the database discovery module. * Depending on the UUIDs that are discovered, this function should forward 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) { NRF_LOG_DEBUG("call to ble_lbs_on_db_disc_evt for instance %d and link 0x%x!", p_evt->conn_handle, p_evt->conn_handle); ble_nus_c_on_db_disc_evt(&m_ble_nus_c[p_evt->conn_handle], p_evt); /* BLE uart */ } /** @brief Database discovery initialization. */ static void db_discovery_init(void) { ret_code_t err_code = ble_db_discovery_init(db_disc_handler); APP_ERROR_CHECK(err_code); } /**@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 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 Handle any pending log operation(s), then sleep until the next event occurs. */ static void idle_state_handle(void) { if (NRF_LOG_PROCESS() == false) { nrf_pwr_mgmt_run(); } } /** @brief Function for initializing the 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 the timer. */ static void timer_init(void) { ret_code_t err_code = app_timer_init(); 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 (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 module. */ static 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); } int main(void) { /*-< Initialize. >-*/ log_init(); timer_init(); power_management_init(); ble_stack_init(); gatt_init(); db_discovery_init(); ble_conn_state_init(); /*-< uart config >-*/ uart_init(); nus_c_init(); /*-< Start execution. >-*/ NRF_LOG_INFO("Multilink example started."); scan_start(); for (;;) { idle_state_handle(); } }
