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GPIOTE with BLE UART example

Dear Nordic Team,

Thanks for supporting. Now i want to integrate GPIOTE with BLE UART example. When i  call gpio_init(); this function got error like below image.please support anyone

SDK : SDK12.3.0

Hardware : PCA10040

  • Hi,

    Error code 0x08 means NRF_ERROR_INVALID_STATE, and is returned by the GPIOTE driver init function if the driver is already initialized.

    ble_app_uart example make use of the BSP library, which again use the application button library. The button library already initialize GPIOTE driver. You could add a check to make sure you do not initialize the driver if it is already initialized:

    if (!nrf_drv_gpiote_is_init())
    {
        err_code = nrf_drv_gpiote_init();
        APP_ERROR_CHECK(err_code);
    }

    Best regards,
    Jørgen

  • @ , Thanks for reply. your point is right. But i need both buttons_leds_init(&erase_bonds) and gpio_init() how can i use this.

    my project is AC FAN control using Dimmer concept. Please suggest me. My code 

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     * 
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    /** @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 "softdevice_handler.h"
    #include "app_timer.h"
    #include "app_button.h"
    #include "ble_nus.h"
    #include "app_uart.h"
    #include "app_util_platform.h"
    #include "bsp.h"
    #include "bsp_btn_ble.h"
    #include "nrf_drv_gpiote.h"
    #include "nrf_delay.h"
    #define IS_SRVC_CHANGED_CHARACT_PRESENT 0                                           /**< Include the service_changed characteristic. If not enabled, the server's database cannot be changed for the lifetime of the device. */
    
    #if (NRF_SD_BLE_API_VERSION == 3)
    #define NRF_BLE_MAX_MTU_SIZE            GATT_MTU_SIZE_DEFAULT                       /**< MTU size used in the softdevice enabling and to reply to a BLE_GATTS_EVT_EXCHANGE_MTU_REQUEST event. */
    #endif
    
    #define APP_FEATURE_NOT_SUPPORTED       BLE_GATT_STATUS_ATTERR_APP_BEGIN + 2        /**< Reply when unsupported features are requested. */
    
    #define CENTRAL_LINK_COUNT              0                                           /**< Number of central links used by the application. When changing this number remember to adjust the RAM settings*/
    #define PERIPHERAL_LINK_COUNT           1                                           /**< Number of peripheral links used by the application. When changing this number remember to adjust the RAM settings*/
    
    #define DEVICE_NAME                     "FAN CONTROL"                               /**< 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_ADV_INTERVAL                1800                                          /**< The advertising interval (in units of 0.625 ms. This value corresponds to 40 ms). */
    #define APP_ADV_TIMEOUT_IN_SECONDS      180                                         /**< The advertising timeout (in units of seconds). */
    
    #define APP_TIMER_PRESCALER             0                                           /**< Value of the RTC1 PRESCALER register. */
    #define APP_TIMER_OP_QUEUE_SIZE         4                                           /**< Size of timer operation queues. */
    
    #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, APP_TIMER_PRESCALER)  /**< 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, APP_TIMER_PRESCALER) /**< 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. */
    
    static ble_nus_t                        m_nus;                                      /**< Structure to identify the Nordic UART Service. */
    static uint16_t                         m_conn_handle = BLE_CONN_HANDLE_INVALID;    /**< Handle of the current connection. */
    
    static ble_uuid_t                       m_adv_uuids[] = {{BLE_UUID_NUS_SERVICE, NUS_SERVICE_UUID_TYPE}};  /**< Universally unique service identifier. */
    
    #ifdef BSP_BUTTON_0
        #define PIN_IN BSP_BUTTON_0
    #endif
    #ifndef PIN_IN
        #error "Please indicate input pin"
    #endif
    
    #ifdef BSP_LED_0
        #define PIN_OUT BSP_LED_0
    #endif
    #ifndef PIN_OUT
        #error "Please indicate output pin"
    #endif
    uint32_t GIu_Dimm_Delay_us=6000;
    
    void in_pin_handler(nrf_drv_gpiote_pin_t pin, nrf_gpiote_polarity_t action)
    {
          // nrf_drv_gpiote_out_toggle(PIN_OUT);
    			nrf_delay_us(GIu_Dimm_Delay_us);
    			nrf_gpio_pin_set(PIN_OUT);
    			nrf_delay_us(10);
    			nrf_gpio_pin_clear(PIN_OUT);
    }
    /**
     * @brief Function for configuring: PIN_IN pin for input, PIN_OUT pin for output,
     * and configures GPIOTE to give an interrupt on pin change.
     */
    static void gpio_init(void)
    {
        ret_code_t err_code;
    if (!nrf_drv_gpiote_is_init())
    {
        err_code = nrf_drv_gpiote_init();
        APP_ERROR_CHECK(err_code);
    }
       // err_code = nrf_drv_gpiote_init();
      //  APP_ERROR_CHECK(err_code);
    
        nrf_drv_gpiote_out_config_t out_config = GPIOTE_CONFIG_OUT_SIMPLE(false);
    
        err_code = nrf_drv_gpiote_out_init(PIN_OUT, &out_config);
        APP_ERROR_CHECK(err_code);
    
        nrf_drv_gpiote_in_config_t in_config = GPIOTE_CONFIG_IN_SENSE_LOTOHI(true);  // GPIOTE_CONFIG_IN_SENSE_TOGGLE 
        in_config.pull = NRF_GPIO_PIN_PULLUP;
    
        err_code = nrf_drv_gpiote_in_init(PIN_IN, &in_config, in_pin_handler);
        APP_ERROR_CHECK(err_code);
    
        nrf_drv_gpiote_in_event_enable(PIN_IN, true);
    }
    
    /**@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 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 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_nus    Nordic UART Service structure.
     * @param[in] p_data   Data to be send to UART module.
     * @param[in] length   Length of the data.
     */
    /**@snippet [Handling the data received over BLE] */
    static void nus_data_handler(ble_nus_t * p_nus, uint8_t * p_data, uint16_t length)
    {
        for (uint32_t i = 0; i < length; i++)
        {
            while (app_uart_put(p_data[i]) != NRF_SUCCESS);
        }
        while (app_uart_put('\r') != NRF_SUCCESS);
        while (app_uart_put('\n') != NRF_SUCCESS);
    }
    /**@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;
    
        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 the application's SoftDevice event handler.
     *
     * @param[in] p_ble_evt SoftDevice event.
     */
    static void on_ble_evt(ble_evt_t * p_ble_evt)
    {
        uint32_t err_code;
    
        switch (p_ble_evt->header.evt_id)
        {
            case BLE_GAP_EVT_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;
                break; // BLE_GAP_EVT_CONNECTED
    
            case BLE_GAP_EVT_DISCONNECTED:
                err_code = bsp_indication_set(BSP_INDICATE_IDLE);
                APP_ERROR_CHECK(err_code);
                m_conn_handle = BLE_CONN_HANDLE_INVALID;
                break; // BLE_GAP_EVT_DISCONNECTED
    
            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; // BLE_GAP_EVT_SEC_PARAMS_REQUEST
    
            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; // BLE_GATTS_EVT_SYS_ATTR_MISSING
    
            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; // BLE_GATTC_EVT_TIMEOUT
    
            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; // BLE_GATTS_EVT_TIMEOUT
    
            case BLE_EVT_USER_MEM_REQUEST:
                err_code = sd_ble_user_mem_reply(p_ble_evt->evt.gattc_evt.conn_handle, NULL);
                APP_ERROR_CHECK(err_code);
                break; // BLE_EVT_USER_MEM_REQUEST
    
            case BLE_GATTS_EVT_RW_AUTHORIZE_REQUEST:
            {
                ble_gatts_evt_rw_authorize_request_t  req;
                ble_gatts_rw_authorize_reply_params_t auth_reply;
    
                req = p_ble_evt->evt.gatts_evt.params.authorize_request;
    
                if (req.type != BLE_GATTS_AUTHORIZE_TYPE_INVALID)
                {
                    if ((req.request.write.op == BLE_GATTS_OP_PREP_WRITE_REQ)     ||
                        (req.request.write.op == BLE_GATTS_OP_EXEC_WRITE_REQ_NOW) ||
                        (req.request.write.op == BLE_GATTS_OP_EXEC_WRITE_REQ_CANCEL))
                    {
                        if (req.type == BLE_GATTS_AUTHORIZE_TYPE_WRITE)
                        {
                            auth_reply.type = BLE_GATTS_AUTHORIZE_TYPE_WRITE;
                        }
                        else
                        {
                            auth_reply.type = BLE_GATTS_AUTHORIZE_TYPE_READ;
                        }
                        auth_reply.params.write.gatt_status = APP_FEATURE_NOT_SUPPORTED;
                        err_code = sd_ble_gatts_rw_authorize_reply(p_ble_evt->evt.gatts_evt.conn_handle,
                                                                   &auth_reply);
                        APP_ERROR_CHECK(err_code);
                    }
                }
            } break; // BLE_GATTS_EVT_RW_AUTHORIZE_REQUEST
    
    #if (NRF_SD_BLE_API_VERSION == 3)
            case BLE_GATTS_EVT_EXCHANGE_MTU_REQUEST:
                err_code = sd_ble_gatts_exchange_mtu_reply(p_ble_evt->evt.gatts_evt.conn_handle,
                                                           NRF_BLE_MAX_MTU_SIZE);
                APP_ERROR_CHECK(err_code);
                break; // BLE_GATTS_EVT_EXCHANGE_MTU_REQUEST
    #endif
    
            default:
                // No implementation needed.
                break;
        }
    }
    
    
    /**@brief Function for dispatching a SoftDevice event to all modules with a SoftDevice
     *        event handler.
     *
     * @details This function is called from the SoftDevice event interrupt handler after a
     *          SoftDevice event has been received.
     *
     * @param[in] p_ble_evt  SoftDevice event.
     */
    static void ble_evt_dispatch(ble_evt_t * p_ble_evt)
    {
        ble_conn_params_on_ble_evt(p_ble_evt);
        ble_nus_on_ble_evt(&m_nus, p_ble_evt);
        on_ble_evt(p_ble_evt);
        ble_advertising_on_ble_evt(p_ble_evt);
        bsp_btn_ble_on_ble_evt(p_ble_evt);
    
    }
    
    
    /**@brief Function for the SoftDevice initialization.
     *
     * @details This function initializes the SoftDevice and the BLE event interrupt.
     */
    static void ble_stack_init(void)
    {
        uint32_t err_code;
    
        nrf_clock_lf_cfg_t clock_lf_cfg = NRF_CLOCK_LFCLKSRC;
    
        // Initialize SoftDevice.
        SOFTDEVICE_HANDLER_INIT(&clock_lf_cfg, NULL);
    
        ble_enable_params_t ble_enable_params;
        err_code = softdevice_enable_get_default_config(CENTRAL_LINK_COUNT,
                                                        PERIPHERAL_LINK_COUNT,
                                                        &ble_enable_params);
        APP_ERROR_CHECK(err_code);
    
        //Check the ram settings against the used number of links
        CHECK_RAM_START_ADDR(CENTRAL_LINK_COUNT,PERIPHERAL_LINK_COUNT);
    
        // Enable BLE stack.
    #if (NRF_SD_BLE_API_VERSION == 3)
        ble_enable_params.gatt_enable_params.att_mtu = NRF_BLE_MAX_MTU_SIZE;
    #endif
        err_code = softdevice_enable(&ble_enable_params);
        APP_ERROR_CHECK(err_code);
    
        // Subscribe for BLE events.
        err_code = softdevice_ble_evt_handler_set(ble_evt_dispatch);
        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();
                    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' i.e '\r\n' (hex 0x0D) or if the string has reached a length of
     *          @ref NUS_MAX_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') || (index >= (BLE_NUS_MAX_DATA_LEN)))
                {
                    err_code = ble_nus_string_send(&m_nus, data_array, index);
                    if (err_code != NRF_ERROR_INVALID_STATE)
                    {
                        APP_ERROR_CHECK(err_code);
                    }
    
                    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;
        const app_uart_comm_params_t comm_params =
        {
            RX_PIN_NUMBER,
            TX_PIN_NUMBER,
            RTS_PIN_NUMBER,
            CTS_PIN_NUMBER,
            APP_UART_FLOW_CONTROL_DISABLED,
            false,
            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);
    }
    /**@snippet [UART Initialization] */
    
    
    /**@brief Function for initializing the Advertising functionality.
     */
    static void advertising_init(void)
    {
        uint32_t               err_code;
        ble_advdata_t          advdata;
        ble_advdata_t          scanrsp;
        ble_adv_modes_config_t options;
    
        // Build advertising data struct to pass into @ref ble_advertising_init.
        memset(&advdata, 0, sizeof(advdata));
        advdata.name_type          = BLE_ADVDATA_FULL_NAME;
        advdata.include_appearance = false;
        advdata.flags              = BLE_GAP_ADV_FLAGS_LE_ONLY_LIMITED_DISC_MODE;
    
        memset(&scanrsp, 0, sizeof(scanrsp));
        scanrsp.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);
        scanrsp.uuids_complete.p_uuids  = m_adv_uuids;
    
        memset(&options, 0, sizeof(options));
        options.ble_adv_fast_enabled  = true;
        options.ble_adv_fast_interval = APP_ADV_INTERVAL;
        options.ble_adv_fast_timeout  = APP_ADV_TIMEOUT_IN_SECONDS;
    
        err_code = ble_advertising_init(&advdata, &scanrsp, &options, on_adv_evt, NULL);
        APP_ERROR_CHECK(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_LED | BSP_INIT_BUTTONS,
                                     APP_TIMER_TICKS(100, APP_TIMER_PRESCALER),
                                     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);
    }
    
    /**@brief Function for placing the application in low power state while waiting for events.
     */
    static void power_manage(void)
    {
        uint32_t err_code = sd_app_evt_wait();
        APP_ERROR_CHECK(err_code);
    }
    
    /**@brief Application main function.
     */
    int main(void)
    {
        uint32_t err_code;
        bool erase_bonds;
    
        // Initialize.
        APP_TIMER_INIT(APP_TIMER_PRESCALER, APP_TIMER_OP_QUEUE_SIZE, false);
        uart_init();
    
        //buttons_leds_init(&erase_bonds);
        ble_stack_init();
        gap_params_init();
        services_init();
        advertising_init();
        conn_params_init();
    		gpio_init();
        printf("\r\nUART Start!\r\n");
        err_code = ble_advertising_start(BLE_ADV_MODE_FAST);
        APP_ERROR_CHECK(err_code);
    
        // Enter main loop.
        for (;;)
        {
            power_manage();
    			        // Do nothing.
    		/*	GIu_Dimm_Delay_us=8000;
    			nrf_delay_ms(500);
    			GIu_Dimm_Delay_us=7000;
    			nrf_delay_ms(500);
    			GIu_Dimm_Delay_us=6000;
    			nrf_delay_ms(500);
    			GIu_Dimm_Delay_us=5000;
    			nrf_delay_ms(500);*/
        }
    }
    
    
    /**
     * @}
     */
    

  • You cannot control the same GPIO using GPIOTE driver directly and with BSP LED module. Please redefined PIN_OUT to some other pin number than BSP_LED_0.

  • Yes i changed another GPIO for PIN_OUT but i faced same issue. When i comment this function (both buttons_leds_init(&erase_bonds) ) working good.

    Also i am faced one more issue like flickering for AC Dimmer. please suggest me how can i solve this ?

  • Did you change PIN_IN define as well? I'm not sure I understand what your issue is. Do you get any error codes? Something else not working as expected?

    I cannot help you with the "flickering for AC Dimmer" issue without you describing this issue in details. If it is not related to GPIOTE and this issue, you should create a new thread about this issue.

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