FDS and bootloader

[Fabien Comte]

Hello,

I try to use fds with bootloader but function wait_for_fds_ready() never returns. Do someone have an idea please ?

static void power_manage(void)
{
#ifdef SOFTDEVICE_PRESENT
    (void) sd_app_evt_wait();
#else
    __WFE();
#endif
}

static void wait_for_fds_ready(void)
{
    while (!m_fds_initialized)
    {
        power_manage();
    }
}


int my init:

    ret_code_t ret = fds_register(my_fds_evt_handler);
    if (ret != FDS_SUCCESS)
    {
        NRF_LOG_INFO("Error: fds_register failed");
        return ret;    
    }
    ret = fds_init();
    if (ret != FDS_SUCCESS)
    {
        NRF_LOG_INFO("Error: fds_init failed");
        return ret;
    }
       
    wait_for_fds_ready(); <- never returns

[Andre]

How have you implemented my_fds_evt_handler()? It should set the m_fds_initialized variable to true. It should look something like this: 

void fds_evt_handler(fds_evt_t const * const p_fds_evt) {
    switch (p_fds_evt->id) {
        case FDS_EVT_INIT:
            if (p_fds_evt->result == FDS_SUCCESS) fds_initialised = true;
            break;
        case FDS_EVT_WRITE:
        case FDS_EVT_UPDATE:
        	if (p_fds_evt->result == FDS_SUCCESS) fds_write_done = true;
        	break;
        case FDS_EVT_GC: 
        	if (p_fds_evt->result == FDS_SUCCESS) fds_garbage_collected = true;
        	break;
    }
}

[Fabien Comte]

Hello.

Yes i did but it looks like if it was not called.

Thank you for your help.

[Andre]

What SDK version are you using? Are you using the Soft Device? Since SDK 14, there are versions of FDS for with and without SoftDevice. If you're using SDK 14 or 15, make sure you're using the correct version.

If you are using an older SDK version, you must enable the SoftDevice prior to calling into the FDS.

[Fabien Comte]

15.2 with SD. Does the bootloader should use FDS without SD ? If yes, where can i find it please ?

Thank you.

[Andre]

The bootloader uses the SoftDevice, so it should be the version with SoftDevice. However, you should look at the point where it initialises the SoftDevice, and only initialise FDS afterwards.

On selecting the back-end, see http://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.sdk5.v15.2.0%2Flib_fstorage.html&cp=4_0_0_3_56