USB HID and BLE working together ，

[12345678]

When bluetooth only is enabled, the program has no problems.After adding USB, the program crashes。How am I supposed to initialize it, is it a matter of order

<info> app: log_init

int main(void)
{
	log_init();
    ret_code_t err_code;
    timers_init();
    usb_keyboard_init();
    ble_init();

    err_code = app_timer_create(&m_keyboard_scan_timer, APP_TIMER_MODE_REPEATED, keyboard_scan_handler);
    APP_ERROR_CHECK(err_code);   
    err_code = app_timer_start(m_keyboard_scan_timer, APP_TIMER_TICKS(KEYBOARD_SCAN_INTERVAL), NULL);
    APP_ERROR_CHECK(err_code);
    for (;;)
    {
        while (app_usbd_event_queue_process())
        {
            /* Nothing to do */
        }
        idle_state_handle();
    }
}

void ble_init(void)
{
	power_management_init();
	ble_stack_init();
	gap_params_init();
	gatt_init();
	advertising_init();
	services_init();
    conn_params_init();
	advertising_start();
}

<info> app: timers init

<info> CLOCK: Function: nrfx_clock_init, error code: NRF_SUCCESS.

<info> CLOCK: Module enabled.

<info> clock: Function: nrf_drv_clock_init, error code: NRF_SUCCESS.

<info> app: USBD HID composite example started.

<info> app: USB power detected

<error> app: Fatal error

[12345678]

I also looked at the USBD_BLE_UART example, but without any help, the code crashed after running to USB power detected,

[Edvin]

Hello,

Can you please try to define DEBUG in your preprocessor defines? Please let me know what IDE you are using if you are not sure how to add this to your preprocessor defines.

After doing so, the log should give some more info on what the error is. What function does it point to, and what is the return value?

Best regards,

Edvin

[12345678]

• I changed the macro definition in sd_config ,

• NRF_SDH_DISPATCH_MODEL = 0,The original is 1

[12345678]

Now my USB can be recognized, and the log also shows that the broadcast starts, but within a few milliseconds the bluetooth broadcast stops, the timer stops working, and the USB is always connected

[12345678]

• I compiled in VScode and configured the GCC compilation environment