fds_evt_handler() not invoked for 52840, SDKv14.2, S140 ?

RE: fds_evt_handler() not invoked for 52840, SDKv14.2, S140 ?

wc4765 — Tue, 03 Apr 2018 16:27:35 GMT

Hello emdi,

I have isolated and corrected my problem. The nrf_sdh_soc.c file was not being included in my build. Because of this SOC events were not happening. It's a consequence of the compile-time OBSERVER inclusion that I was not getting any error or warning that this file was missing from my build.

Thanks for your help. This ticket can be closed.

Warren

RE: fds_evt_handler() not invoked for 52840, SDKv14.2, S140 ?

emdi — Tue, 03 Apr 2018 07:27:46 GMT

Your understanding of the problem is correct, the handler is not invoked so the initialization only performs one step every bootup. Could you provide a snippet of you main file?

RE: fds_evt_handler() not invoked for 52840, SDKv14.2, S140 ?

wc4765 — Thu, 29 Mar 2018 22:03:17 GMT

I do have NRF_FSTORAGE_ENABLED and NRF_SDH_SOC_ENABLED both set to 1. And I have successfully registered an FDS event handler.

I have figured out additional information about the problem I am seeing. The event handler does not get called with the FDS_EVT_INIT event upon startup unless all FDS_VIRTUAL _PAGES get initialized with valid tag values of FDS_PAGE_TAG_SWAP or FDS_PAGE_TAG_DATA.

I am now using a nRF52832 processor (PCA10040), SDK v14.2.0 and softdevice S132v5

The sequence of events that causes the issue I see:

- my application config has FDS_VIRTUAL_PAGES defined as 2

- erase flash

- load softdevice S132v5

- load applicattion

- upon startup no FDS_EVT_INIT occurs, but the first FDS_VIRTUAL_PAGE (0x7e000) contains a FDS_PAGE_TAG_SWAP value.

- reset. no FDS_EVT_INIT occurs but the second FDS_VIRTUAL_PAGE (0x7f000) contains a FDS_PAGE_TAG_DATA value

- reset. The FDS_EVT_INIT now occurs and will continue to occur on subsequent resets

So the problem I am having is that successive reset operations after erasing the flash and loading softdevice and application appear to initialize only one FDS_VIRTUAL_PAGE at a time and the fds_evt_handler() will not happen until all tthe virtual pages are initialized with valid tags.

If I build my application with FDS_VIRTUAL_PAGES defined as 3 instead of 2, then it will take 3 resets before the event handler will operate.

Is there a problem with pages_init() in fds.c that appears to have a loop to initialize all FDS_VIRTUAL_PAGES??

Warren

RE: fds_evt_handler() not invoked for 52840, SDKv14.2, S140 ?

emdi — Wed, 21 Mar 2018 11:40:05 GMT

Hi,

I am guessing you are using the SoftDevice. It seems you have not registered a handler for SoftDevice events.

This should be done automatically (in nrf_fstorage_sd.c that's done at the top of the file):

/* Define a nrf_sdh_soc event observer to receive SoftDevice system events. */
NRF_SDH_SOC_OBSERVER(m_sys_obs, 0, nrf_fstorage_sys_evt_handler, NULL);
provided you have a few #defines set.

Have you set NRF_FSTORAGE_ENABLED to 1 ?
Have you set NRF_SDH_SOC_ENABLED to 1 ?