nRF52840 DK USB HID with SoftDevice Fails with nRF5_SDK_15.0.0_a53641a

[HSh]

Hello Nordic Experts,

I'd like to add the usb hid composite to one of BLE examples. I followed link below and combined the example usbd_hid_composite with ble_app_blinki_c. 

https://devzone.nordicsemi.com/f/nordic-q-a/28119/nrf52840-template-project-for-usb-and-ble/110929#110929

The BLE part works fine, but I use Bus Hound to monitor the USB and there is no sign of any USB device. Can you please help me understand what is wrong here.

I just copied/pasted all definitions&declarations from usbd_hid_composite (excluding CLI interface) to the ble example, and added all required path/files to the project. I then set

#define USBD_POWER_DETECTION false

and in sdk_config.h,

#define APP_USBD_CONFIG_POWER_EVENTS_PROCESS 0

#define POWER_ENABLED 0

#define USBD_ENABLED 1

#define APP_USBD_ENABLED 1

#define APP_USBD_VID 0x1915

#define APP_USBD_PID 0x520B

#define APP_USBD_HID_ENABLED 1

#define APP_USBD_HID_KBD_ENABLED 1

#define APP_USBD_HID_MOUSE_ENABLED 1

This is my main

int main(void)
{

ret_code_t ret;
static const app_usbd_config_t usbd_config = {
.ev_state_proc = usbd_user_ev_handler,
};
log_init();

ret = NRF_LOG_INIT(NULL);
APP_ERROR_CHECK(ret);

ret = nrf_drv_clock_init();
APP_ERROR_CHECK(ret);

nrf_drv_clock_lfclk_request(NULL);
while(!nrf_drv_clock_lfclk_is_running())
{
/* Just waiting */
}

ret = app_timer_init();
APP_ERROR_CHECK(ret);

ret = app_timer_create(&m_mouse_move_timer, APP_TIMER_MODE_REPEATED, mouse_move_timer_handler);
APP_ERROR_CHECK(ret);

init_bsp();
//init_cli();

ret = app_usbd_init(&usbd_config);
APP_ERROR_CHECK(ret);

app_usbd_class_inst_t const * class_inst_mouse;
#if CONFIG_HAS_MOUSE
class_inst_mouse = app_usbd_hid_mouse_class_inst_get(&m_app_hid_mouse);
#else
class_inst_mouse = app_usbd_dummy_class_inst_get(&m_app_mouse_dummy);
#endif
ret = app_usbd_class_append(class_inst_mouse);
APP_ERROR_CHECK(ret);

app_usbd_class_inst_t const * class_inst_kbd;
#if CONFIG_HAS_KBD
class_inst_kbd = app_usbd_hid_kbd_class_inst_get(&m_app_hid_kbd);
#else
class_inst_kbd = app_usbd_dummy_class_inst_get(&m_app_kbd_dummy);
#endif
ret = app_usbd_class_append(class_inst_kbd);
APP_ERROR_CHECK(ret);

// Initialize.

//timer_init();
leds_init();
//buttons_init();
power_management_init();
ble_stack_init();
gatt_init();
db_discovery_init();
lbs_c_init();

// Start execution.
NRF_LOG_INFO("Blinky CENTRAL example started.");
scan_start();

if (USBD_POWER_DETECTION)
{
//ret = app_usbd_power_events_enable();
APP_ERROR_CHECK(ret);
}
else
{
NRF_LOG_INFO("No USB power detection enabled\r\nStarting USB now");

app_usbd_enable();
app_usbd_start();
}

// Turn on the LED to signal scanning.
bsp_board_led_on(CENTRAL_SCANNING_LED);

// Enter main loop.
for (;;)
{
idle_state_handle();
}
}

Thanks

[HSh]

Here is my main.c file.

Fullscreen 8304.main.c Download

/**
 * Copyright (c) 2014 - 2018, Nordic Semiconductor ASA
 * 
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form, except as embedded into a Nordic
 *    Semiconductor ASA integrated circuit in a product or a software update for
 *    such product, must reproduce the above copyright notice, this list of
 *    conditions and the following disclaimer in the documentation and/or other
 *    materials provided with the distribution.
 * 
 * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
 *    contributors may be used to endorse or promote products derived from this
 *    software without specific prior written permission.
 * 
 * 4. This software, with or without modification, must only be used with a
 *    Nordic Semiconductor ASA integrated circuit.
 * 
 * 5. Any software provided in binary form under this license must not be reverse
 *    engineered, decompiled, modified and/or disassembled.
 * 
 * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 */
/**
 * @brief BLE LED Button Service central and client application main file.
 *
 * This file contains the source code for a sample client application using the LED Button service.
 */

#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include "nrf_sdh.h"
#include "nrf_sdh_ble.h"
#include "nrf_sdh_soc.h"
#include "nrf_pwr_mgmt.h"
#include "app_timer.h"
#include "boards.h"
#include "bsp.h"
#include "bsp_btn_ble.h"
#include "ble.h"
#include "ble_hci.h"
#include "ble_advdata.h"
#include "ble_advertising.h"
#include "ble_conn_params.h"
#include "ble_db_discovery.h"
#include "ble_lbs_c.h"
#include "nrf_ble_gatt.h"

#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"

//USB INCLUDES
#include <stddef.h>
#include "nrf_drv_usbd.h"
#include "nrf_drv_clock.h"
#include "nrf_gpio.h"
#include "nrf_drv_power.h"
#include "app_usbd.h"
#include "app_usbd_core.h"
#include "app_usbd_hid_mouse.h"
#include "app_usbd_hid_kbd.h"
#include "app_usbd_dummy.h"
#include "bsp.h"


#define CENTRAL_SCANNING_LED            BSP_BOARD_LED_0                     /**< Scanning LED will be on when the device is scanning. */
#define CENTRAL_CONNECTED_LED           BSP_BOARD_LED_1                     /**< Connected LED will be on when the device is connected. */
#define LEDBUTTON_LED                   BSP_BOARD_LED_2                     /**< LED to indicate a change of state of the the Button characteristic on the peer. */

#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(7.5, UNIT_1_25_MS)    /**< Determines minimum connection interval in milliseconds. */
#define MAX_CONNECTION_INTERVAL         MSEC_TO_UNITS(30, UNIT_1_25_MS)     /**< Determines maximum connection interval in milliseconds. */
#define SLAVE_LATENCY                   0                                   /**< Determines slave latency in terms of connection events. */
#define SUPERVISION_TIMEOUT             MSEC_TO_UNITS(4000, UNIT_10_MS)     /**< Determines supervision time-out in units of 10 milliseconds. */

#define LEDBUTTON_BUTTON_PIN            BSP_BUTTON_0                        /**< Button that will write to the LED characteristic of the peer */
#define BUTTON_DETECTION_DELAY          APP_TIMER_TICKS(50)                 /**< Delay from a GPIOTE event until a button is reported as pushed (in number of timer ticks). */

#define APP_BLE_CONN_CFG_TAG            1                                   /**< A tag identifying the SoftDevice BLE configuration. */
#define APP_BLE_OBSERVER_PRIO           3                                   /**< Application's BLE observer priority. You shouldn't need to modify this value. */


BLE_LBS_C_DEF(m_ble_lbs_c);                                     /**< Main structure used by the LBS client module. */
NRF_BLE_GATT_DEF(m_gatt);                                       /**< GATT module instance. */
BLE_DB_DISCOVERY_DEF(m_db_disc);                                /**< DB discovery module instance. */

static char const m_target_periph_name[] = "Nordic_Blinky";     /**< Name of the device we try to connect to. This name is searched in the scan report data*/

/**@brief Parameters used when scanning. */
static ble_gap_scan_params_t const m_scan_params =
{
    .active   = 1,
    .interval = SCAN_INTERVAL,
    .window   = SCAN_WINDOW,

    .timeout           = SCAN_DURATION,
    .scan_phys         = BLE_GAP_PHY_1MBPS,
    .filter_policy     = BLE_GAP_SCAN_FP_ACCEPT_ALL,
};

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 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 for the LEDs initialization.
 *
 * @details Initializes all LEDs used by the application.
 */
static void leds_init(void)
{
    bsp_board_init(BSP_INIT_LEDS);
}


/**@brief Function to start scanning.
 */
static void scan_start(void)
{
    ret_code_t err_code;

    (void) sd_ble_gap_scan_stop();

    err_code = sd_ble_gap_scan_start(&m_scan_params, &m_scan_buffer);
    APP_ERROR_CHECK(err_code);

    bsp_board_led_off(CENTRAL_CONNECTED_LED);
    bsp_board_led_on(CENTRAL_SCANNING_LED);
}


/**@brief Handles events coming from the LED Button central module.
 */
static void lbs_c_evt_handler(ble_lbs_c_t * p_lbs_c, ble_lbs_c_evt_t * p_lbs_c_evt)
{
    switch (p_lbs_c_evt->evt_type)
    {
        case BLE_LBS_C_EVT_DISCOVERY_COMPLETE:
        {
            ret_code_t err_code;

            err_code = ble_lbs_c_handles_assign(&m_ble_lbs_c,
                                                p_lbs_c_evt->conn_handle,
                                                &p_lbs_c_evt->params.peer_db);
            NRF_LOG_INFO("LED Button service discovered on conn_handle 0x%x.", p_lbs_c_evt->conn_handle);

            err_code = app_button_enable();
            APP_ERROR_CHECK(err_code);

            // LED Button service discovered. Enable notification of Button.
            err_code = ble_lbs_c_button_notif_enable(p_lbs_c);
            APP_ERROR_CHECK(err_code);
        } break; // BLE_LBS_C_EVT_DISCOVERY_COMPLETE

        case BLE_LBS_C_EVT_BUTTON_NOTIFICATION:
        {
            NRF_LOG_INFO("Button state changed on peer to 0x%x.", p_lbs_c_evt->params.button.button_state);
            if (p_lbs_c_evt->params.button.button_state)
            {
                bsp_board_led_on(LEDBUTTON_LED);
            }
            else
            {
                bsp_board_led_off(LEDBUTTON_LED);
            }
        } break; // BLE_LBS_C_EVT_BUTTON_NOTIFICATION

        default:
            // No implementation needed.
            break;
    }
}

/**@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);
        APP_ERROR_CHECK(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 (HR or RSC), initiate DB
        // discovery, update LEDs status and resume scanning if necessary. */
        case BLE_GAP_EVT_CONNECTED:
        {
            NRF_LOG_INFO("Connected.");
            err_code = ble_lbs_c_handles_assign(&m_ble_lbs_c, p_gap_evt->conn_handle, NULL);
            APP_ERROR_CHECK(err_code);

            err_code = ble_db_discovery_start(&m_db_disc, p_gap_evt->conn_handle);
            APP_ERROR_CHECK(err_code);

            // Update LEDs status, and check if we should be looking for more
            // peripherals to connect to.
            bsp_board_led_on(CENTRAL_CONNECTED_LED);
            bsp_board_led_off(CENTRAL_SCANNING_LED);
        } break;

        // 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("Disconnected.");
            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:
        {
            // 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;
    }
}


/**@brief LED Button client initialization.
 */
static void lbs_c_init(void)
{
    ret_code_t       err_code;
    ble_lbs_c_init_t lbs_c_init_obj;

    lbs_c_init_obj.evt_handler = lbs_c_evt_handler;

    err_code = ble_lbs_c_init(&m_ble_lbs_c, &lbs_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 events from the button handler module.
 *
 * @param[in] pin_no        The pin that the event applies to.
 * @param[in] button_action The button action (press/release).
 */
/*static void button_event_handler(uint8_t pin_no, uint8_t button_action)
{
    ret_code_t err_code;

    switch (pin_no)
    {
        case LEDBUTTON_BUTTON_PIN:
            err_code = ble_lbs_led_status_send(&m_ble_lbs_c, button_action);
            if (err_code != NRF_SUCCESS &&
                err_code != BLE_ERROR_INVALID_CONN_HANDLE &&
                err_code != NRF_ERROR_INVALID_STATE)
            {
                APP_ERROR_CHECK(err_code);
            }
            if (err_code == NRF_SUCCESS)
            {
                NRF_LOG_INFO("LBS write LED state %d", button_action);
            }
            break;

        default:
            APP_ERROR_HANDLER(pin_no);
            break;
    }
}*/


/**@brief Function for initializing the button handler module.
 */
/*static void buttons_init(void)
{
    ret_code_t err_code;

    //The array must be static because a pointer to it will be saved in the button handler module.
    static app_button_cfg_t buttons[] =
    {
        {LEDBUTTON_BUTTON_PIN, false, BUTTON_PULL, button_event_handler}
    };

    err_code = app_button_init(buttons, ARRAY_SIZE(buttons),
                               BUTTON_DETECTION_DELAY);
    APP_ERROR_CHECK(err_code);
} */


/**@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)
{
    ble_lbs_on_db_disc_evt(&m_ble_lbs_c, p_evt);
}


/**@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 log.
 */
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 initializing the Power manager. */
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 GATT module.
 */
static void gatt_init(void)
{
    ret_code_t err_code = nrf_ble_gatt_init(&m_gatt, NULL);
    APP_ERROR_CHECK(err_code);
}


/**@brief Function for 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)
{
    NRF_LOG_FLUSH();
    nrf_pwr_mgmt_run();
}


//USB Related Codes
/**
 * @brief Enable USB power detection
 */
#ifndef USBD_POWER_DETECTION
#define USBD_POWER_DETECTION false
#endif

/**
 * @brief Enable HID mouse class
 */
#define CONFIG_HAS_MOUSE    1

/**
 * @brief Enable HID keyboard class
 */
#define CONFIG_HAS_KBD      1

/**
 * @brief Mouse button count
 */
#define CONFIG_MOUSE_BUTTON_COUNT 2

/**
 * @brief Mouse speed (value sent via HID when board button is pressed).
 */
#define CONFIG_MOUSE_MOVE_STEP (3)

/**
 * @brief Mouse move repeat time in milliseconds
 */
#define CONFIG_MOUSE_MOVE_TIME_MS (5)

/**
 * @brief Letter to be sent on LETTER button
 *
 * @sa BTN_KBD_LETTER
 */
#define CONFIG_KBD_LETTER APP_USBD_HID_KBD_G



#define LED_CAPSLOCK       (BSP_BOARD_LED_0) /**< CAPSLOCK */
#define LED_NUMLOCK        (BSP_BOARD_LED_1) /**< NUMLOCK */
#define LED_HID_REP        (BSP_BOARD_LED_2) /**< Changes its state if any HID report was received or transmitted */
#define LED_USB_START      (BSP_BOARD_LED_3) /**< The USBD library has been started and the bus is not in SUSPEND state */

#define BTN_MOUSE_X_POS    0
#define BTN_MOUSE_LEFT     1
#define BTN_KBD_SHIFT      2
#define BTN_KBD_LETTER     3

/**
 * @brief Additional key release events
 *
 * This example needs to process release events of used buttons
 */
enum {
    BSP_USER_EVENT_RELEASE_0 = BSP_EVENT_KEY_LAST + 1, /**< Button 0 released */
    BSP_USER_EVENT_RELEASE_1,                          /**< Button 1 released */
    BSP_USER_EVENT_RELEASE_2,                          /**< Button 2 released */
    BSP_USER_EVENT_RELEASE_3,                          /**< Button 3 released */
    BSP_USER_EVENT_RELEASE_4,                          /**< Button 4 released */
    BSP_USER_EVENT_RELEASE_5,                          /**< Button 5 released */
    BSP_USER_EVENT_RELEASE_6,                          /**< Button 6 released */
    BSP_USER_EVENT_RELEASE_7,                          /**< Button 7 released */
};

/**
 * @brief USB composite interfaces
 */
#define APP_USBD_INTERFACE_MOUSE 0
#define APP_USBD_INTERFACE_KBD   1

/**
 * @brief User event handler, HID mouse
 */
static void hid_mouse_user_ev_handler(app_usbd_class_inst_t const * p_inst,
                                      app_usbd_hid_user_event_t event);

/**
 * @brief User event handler, HID keyboard
 */
static void hid_kbd_user_ev_handler(app_usbd_class_inst_t const * p_inst,
                                    app_usbd_hid_user_event_t event);

/*lint -save -e26 -e64 -e123 -e505 -e651*/

/**
 * @brief Global HID mouse instance
 */
APP_USBD_HID_MOUSE_GLOBAL_DEF(m_app_hid_mouse,
                              APP_USBD_INTERFACE_MOUSE,
                              NRF_DRV_USBD_EPIN1,
                              CONFIG_MOUSE_BUTTON_COUNT,
                              hid_mouse_user_ev_handler,
                              APP_USBD_HID_SUBCLASS_BOOT
);

APP_USBD_DUMMY_GLOBAL_DEF(m_app_mouse_dummy, APP_USBD_INTERFACE_MOUSE);

/**
 * @brief Global HID keyboard instance
 */
APP_USBD_HID_KBD_GLOBAL_DEF(m_app_hid_kbd,
                            APP_USBD_INTERFACE_KBD,
                            NRF_DRV_USBD_EPIN2,
                            hid_kbd_user_ev_handler,
                            APP_USBD_HID_SUBCLASS_BOOT
);
APP_USBD_DUMMY_GLOBAL_DEF(m_app_kbd_dummy, APP_USBD_INTERFACE_KBD);

/*lint -restore*/

/**
 * @brief Timer to repeat mouse move
 */
APP_TIMER_DEF(m_mouse_move_timer);


static void kbd_status(void)
{
    if(app_usbd_hid_kbd_led_state_get(&m_app_hid_kbd, APP_USBD_HID_KBD_LED_NUM_LOCK))
    {
        bsp_board_led_on(LED_NUMLOCK);
    }
    else
    {
        bsp_board_led_off(LED_NUMLOCK);
    }

    if(app_usbd_hid_kbd_led_state_get(&m_app_hid_kbd, APP_USBD_HID_KBD_LED_CAPS_LOCK))
    {
        bsp_board_led_on(LED_CAPSLOCK);
    }
    else
    {
        bsp_board_led_off(LED_CAPSLOCK);
    }
}

/**
 * @brief Class specific event handler.
 *
 * @param p_inst    Class instance.
 * @param event     Class specific event.
 * */
static void hid_mouse_user_ev_handler(app_usbd_class_inst_t const * p_inst,
                                      app_usbd_hid_user_event_t event)
{
    UNUSED_PARAMETER(p_inst);
    switch (event) {
        case APP_USBD_HID_USER_EVT_OUT_REPORT_READY:
            /* No output report defined for HID mouse.*/
            ASSERT(0);
            break;
        case APP_USBD_HID_USER_EVT_IN_REPORT_DONE:
            bsp_board_led_invert(LED_HID_REP);
            break;
        default:
            break;
    }
}

/**
 * @brief Class specific event handler.
 *
 * @param p_inst    Class instance.
 * @param event     Class specific event.
 * */
static void hid_kbd_user_ev_handler(app_usbd_class_inst_t const * p_inst,
                                    app_usbd_hid_user_event_t event)
{
    UNUSED_PARAMETER(p_inst);
    switch (event) {
        case APP_USBD_HID_USER_EVT_OUT_REPORT_READY:
            /* Only one output report IS defined for HID keyboard class. Update LEDs state. */
            bsp_board_led_invert(LED_HID_REP);
            kbd_status();
            break;
        case APP_USBD_HID_USER_EVT_IN_REPORT_DONE:
            bsp_board_led_invert(LED_HID_REP);
            break;
        default:
            break;
    }
}


/**
 * @brief USBD library specific event handler.
 *
 * @param event     USBD library event.
 * */
static void usbd_user_ev_handler(app_usbd_event_type_t event)
{
    switch (event)
    {
        case APP_USBD_EVT_DRV_SOF:
            break;
        case APP_USBD_EVT_DRV_SUSPEND:
            app_usbd_suspend_req(); // Allow the library to put the peripheral into sleep mode
            bsp_board_leds_off();
            break;
        case APP_USBD_EVT_DRV_RESUME:
            bsp_board_led_on(LED_USB_START);
            kbd_status(); /* Restore LED state - during SUSPEND all LEDS are turned off */
            break;
        case APP_USBD_EVT_STARTED:
            bsp_board_led_on(LED_USB_START);
            break;
        case APP_USBD_EVT_STOPPED:
            app_usbd_disable();
            bsp_board_leds_off();
            break;
        case APP_USBD_EVT_POWER_DETECTED:
            NRF_LOG_INFO("USB power detected");

            if (!nrf_drv_usbd_is_enabled())
            {
                app_usbd_enable();
            }
            break;
        case APP_USBD_EVT_POWER_REMOVED:
            NRF_LOG_INFO("USB power removed");
            app_usbd_stop();
            break;
        case APP_USBD_EVT_POWER_READY:
            NRF_LOG_INFO("USB ready");
            app_usbd_start();
            break;
        default:
            break;
    }
}


static void mouse_move_timer_handler(void * p_context)
{
    UNUSED_PARAMETER(p_context);
    UNUSED_RETURN_VALUE(app_usbd_hid_mouse_x_move(&m_app_hid_mouse, CONFIG_MOUSE_MOVE_STEP));
}

static void bsp_event_callback(bsp_event_t ev)
{
    switch ((unsigned int)ev)
    {
        case CONCAT_2(BSP_EVENT_KEY_, BTN_MOUSE_X_POS):
            UNUSED_RETURN_VALUE(app_usbd_hid_mouse_x_move(&m_app_hid_mouse, CONFIG_MOUSE_MOVE_STEP));
            UNUSED_RETURN_VALUE(app_timer_start(m_mouse_move_timer, APP_TIMER_TICKS(CONFIG_MOUSE_MOVE_TIME_MS), NULL));
            break;
        case CONCAT_2(BSP_USER_EVENT_RELEASE_, BTN_MOUSE_X_POS):
            UNUSED_RETURN_VALUE(app_timer_stop(m_mouse_move_timer));
            break;

        case CONCAT_2(BSP_EVENT_KEY_, BTN_MOUSE_LEFT):
            UNUSED_RETURN_VALUE(app_usbd_hid_mouse_button_state(&m_app_hid_mouse, 0, true));
            break;
        case CONCAT_2(BSP_USER_EVENT_RELEASE_, BTN_MOUSE_LEFT):
            UNUSED_RETURN_VALUE(app_usbd_hid_mouse_button_state(&m_app_hid_mouse, 0, false));
            break;

        case CONCAT_2(BSP_EVENT_KEY_, BTN_KBD_SHIFT):
            UNUSED_RETURN_VALUE(app_usbd_hid_kbd_modifier_state_set(&m_app_hid_kbd, APP_USBD_HID_KBD_MODIFIER_LEFT_SHIFT, true));
            break;
        case CONCAT_2(BSP_USER_EVENT_RELEASE_, BTN_KBD_SHIFT):
            UNUSED_RETURN_VALUE(app_usbd_hid_kbd_modifier_state_set(&m_app_hid_kbd, APP_USBD_HID_KBD_MODIFIER_LEFT_SHIFT, false));
            break;

        case CONCAT_2(BSP_EVENT_KEY_, BTN_KBD_LETTER):
            UNUSED_RETURN_VALUE(app_usbd_hid_kbd_key_control(&m_app_hid_kbd, CONFIG_KBD_LETTER, true));
            break;
        case CONCAT_2(BSP_USER_EVENT_RELEASE_, BTN_KBD_LETTER):
            UNUSED_RETURN_VALUE(app_usbd_hid_kbd_key_control(&m_app_hid_kbd, CONFIG_KBD_LETTER, false));
            break;

        default:
            return; // no implementation needed
    }
}

/**
 * @brief Auxiliary internal macro
 *
 * Macro used only in @ref init_bsp to simplify the configuration
 */
#define INIT_BSP_ASSIGN_RELEASE_ACTION(btn)                      \
    APP_ERROR_CHECK(                                             \
        bsp_event_to_button_action_assign(                       \
            btn,                                                 \
            BSP_BUTTON_ACTION_RELEASE,                           \
            (bsp_event_t)CONCAT_2(BSP_USER_EVENT_RELEASE_, btn)) \
    )

static void init_bsp(void)
{
    ret_code_t ret;
    ret = bsp_init(BSP_INIT_BUTTONS, bsp_event_callback);
    APP_ERROR_CHECK(ret);

    INIT_BSP_ASSIGN_RELEASE_ACTION(BTN_MOUSE_X_POS);
    INIT_BSP_ASSIGN_RELEASE_ACTION(BTN_MOUSE_LEFT );
    INIT_BSP_ASSIGN_RELEASE_ACTION(BTN_KBD_SHIFT  );
    INIT_BSP_ASSIGN_RELEASE_ACTION(BTN_KBD_LETTER );

    /* Configure LEDs */
    bsp_board_init(BSP_INIT_LEDS);
}

/////////////////////////////////////////////////////////////


int main(void)
{
  
      ret_code_t ret;
    static const app_usbd_config_t usbd_config = {
        .ev_state_proc = usbd_user_ev_handler,
    };
    log_init();
    
    ret = NRF_LOG_INIT(NULL);
    APP_ERROR_CHECK(ret);

    ret = nrf_drv_clock_init();
    APP_ERROR_CHECK(ret);

    nrf_drv_clock_lfclk_request(NULL);
    while(!nrf_drv_clock_lfclk_is_running())
    {
        /* Just waiting */
    }

    ret = app_timer_init();
    APP_ERROR_CHECK(ret);

    ret = app_timer_create(&m_mouse_move_timer, APP_TIMER_MODE_REPEATED, mouse_move_timer_handler);
    APP_ERROR_CHECK(ret);

    init_bsp();
    //init_cli();

    ret = app_usbd_init(&usbd_config);
    APP_ERROR_CHECK(ret);

    app_usbd_class_inst_t const * class_inst_mouse;
#if CONFIG_HAS_MOUSE
    class_inst_mouse = app_usbd_hid_mouse_class_inst_get(&m_app_hid_mouse);
#else
    class_inst_mouse = app_usbd_dummy_class_inst_get(&m_app_mouse_dummy);
#endif
    ret = app_usbd_class_append(class_inst_mouse);
    APP_ERROR_CHECK(ret);

    app_usbd_class_inst_t const * class_inst_kbd;
#if CONFIG_HAS_KBD
    class_inst_kbd = app_usbd_hid_kbd_class_inst_get(&m_app_hid_kbd);
#else
    class_inst_kbd = app_usbd_dummy_class_inst_get(&m_app_kbd_dummy);
#endif
    ret = app_usbd_class_append(class_inst_kbd);
    APP_ERROR_CHECK(ret);
  

    // Initialize.
    
    //timer_init();
    leds_init();
    //buttons_init();
    power_management_init();
    ble_stack_init();
    gatt_init();
    db_discovery_init();
    lbs_c_init();

    // Start execution.
    NRF_LOG_INFO("Blinky CENTRAL example started.");
    scan_start();
    
    if (USBD_POWER_DETECTION)
    {
        //ret = app_usbd_power_events_enable();
        APP_ERROR_CHECK(ret);
    }
    else 
    {
    NRF_LOG_INFO("No USB power detection enabled\r\nStarting USB now");

        app_usbd_enable();
        app_usbd_start(); 
    }

    // Turn on the LED to signal scanning.
    bsp_board_led_on(CENTRAL_SCANNING_LED);

    // Enter main loop.
    for (;;)
    {
        idle_state_handle();
    }
}

[Sigurd]

Hi,

In SDK 15.0 we added a USB+BLE example. You can find the source code and the project file of the example in the following folder: <SDK_InstallFolder>\examples\peripheral\usbd_ble_uart

Please take a look at that example, to see how to combine USB and BLE/SoftDevice.

Let me know if you still have issues with this after looking at that example.

Side note: If you are working on SDK 15.0 and nRF52840 DK 1.0.0, then there is a bug you should be aware of. See this post.

[HSh]

Thanks, I was not aware of that example. Totally helpful and resolved my issue.

[pipixia_8_8]

hi,i compile the project usbd_ble_uart, i use pca10056 ,sdk is SDK 16.0 .when try to stop the ble stack in the project ,there will show a log :Fatal error . so if it is impossible to stop the sd in the usb project ?my code like this:

/** @brief Application main function. */
int main(void)
{
    ret_code_t ret;
    static const app_usbd_config_t usbd_config = {
        .ev_state_proc = usbd_user_ev_handler
    };
    // Initialize.
    log_init();
    timers_init();

    buttons_leds_init();

    app_usbd_serial_num_generate();

    ret = nrf_drv_clock_init();
    APP_ERROR_CHECK(ret);

    NRF_LOG_INFO("USBD BLE UART example started.");

    ret = app_usbd_init(&usbd_config);
    APP_ERROR_CHECK(ret);

    app_usbd_class_inst_t const * class_cdc_acm = app_usbd_cdc_acm_class_inst_get(&m_app_cdc_acm);
    ret = app_usbd_class_append(class_cdc_acm);
    APP_ERROR_CHECK(ret);

    ble_stack_init();
    gap_params_init();
    gatt_init();
    services_init();
    advertising_init();
    conn_params_init();

    // Start execution.
    advertising_start();



//try to stop the  stack
    sd_ble_gap_adv_stop(m_advertising.adv_handle);
    uint32_t err_code;
    err_code = ble_conn_params_stop();
	  NRF_LOG_INFO("err_code =%d",err_code);
    APP_ERROR_CHECK(err_code);

    err_code = nrf_sdh_disable_request();
    APP_ERROR_CHECK(err_code);
    ASSERT(!nrf_sdh_is_enabled());





    ret = app_usbd_power_events_enable();
    APP_ERROR_CHECK(ret);

    // Enter main loop.
    for (;;)
    {
        while (app_usbd_event_queue_process())
        {
            /* Nothing to do */
        }
        idle_state_handle();
    }
}