SDK_14.0.0.0 DFU nrf_dfu.c

gistfile1.txt

uint32_t nrf_dfu_init()
{
    uint32_t ret_val = NRF_SUCCESS;
    uint32_t enter_bootloader_mode = 0;

    NRF_LOG_DEBUG("In real nrf_dfu_init");

    nrf_dfu_settings_init(false);

    // Initialize the clock and timers.
    clock_init();
    timers_init();

    // Continue ongoing DFU operations
    // Note that this part does not rely on SoftDevice interaction
    ret_val = nrf_dfu_continue(&enter_bootloader_mode);
    if (ret_val != NRF_SUCCESS)
    {
        NRF_LOG_DEBUG("Could not continue DFU operation: 0x%08x", ret_val);
        enter_bootloader_mode = 1;
    }

    // Check if there is a reason to enter DFU mode
    // besides the effect of the continuation
    if (nrf_dfu_enter_check())
    {
        NRF_LOG_DEBUG("Application sent bootloader request");
        enter_bootloader_mode = 1;
    }

    nrf_power_gpregret_set(0);

    if (enter_bootloader_mode != 0 || !nrf_dfu_app_is_valid())
    {
        scheduler_init();

        // Start the inactivity timer.
        ret_val = app_timer_start(nrf_dfu_inactivity_timeout_timer_id,
                                  APP_TIMER_TICKS(NRF_DFU_INACTIVITY_TIMEOUT_MS),
                                  NULL);

        if (ret_val != NRF_SUCCESS)
        {
            NRF_LOG_ERROR("Could not initialize inactivity timer");
            return ret_val;
        }

        // Initializing transports
        ret_val = nrf_dfu_transports_init();
        if (ret_val != NRF_SUCCESS)
        {
            NRF_LOG_ERROR("Could not initalize DFU transport: 0x%08x", ret_val);
            return ret_val;
        }

        (void)nrf_dfu_req_handler_init();

        // This function will never return
        NRF_LOG_DEBUG("Waiting for events");
        wait_for_event();
        NRF_LOG_DEBUG("After waiting for events");
    }

    // Erase additional data like peer data or advertisement name
    ret_val = nrf_dfu_settings_additional_erase();
    if (ret_val != NRF_SUCCESS)
    {
        return ret_val;
    }
// ここの方法でアプリに飛ぶと、アプリが動かない。main側でアプリに飛ぶルーチンがあるので、こちらは無効化する。
//    if (nrf_dfu_app_is_valid())
//    {
        // Uninitialize the clock driver to prevent interfering with app.
//        nrf_drv_clock_uninit();

//        NRF_LOG_DEBUG("Jumping to: 0x%08x", MAIN_APPLICATION_START_ADDR);
//        nrf_bootloader_app_start(MAIN_APPLICATION_START_ADDR);
//    }

    // Should not be reached!
    NRF_LOG_INFO("After real nrf_dfu_init");
    return NRF_SUCCESS;
}