fstorage callback not called

[Daniel Dakhno]

I am trying to use fstorage with the sd backend (SDK 14.0.0). My issue is that, after successfully calling nrf_fstorage_write, the callback I registered using

NRF_FSTORAGE_DEF(nrf_fstorage_t m_storage) =
{
    .evt_handler    = fs_evt_handler,
    // addresses taken from linker script
    // which in turn takes those from the bootloader start
    .start_addr     = (0x00075000 - (4 * 0x1000)),
    .end_addr       = (0x00075000 - (3 * 0x1000))
};

just never called.

This leaves me with two questions:

1. What reasons might there be for my fstorage callback to not get called?

2. Can multiple modules register SD observers using NRF_SDH_BLE_OBSERVER with the same priority, or does every observer need to have its own priority?

Thanks!

[Vidar Berg]

Hello,

Does your project include the nrf_sdh_soc.c source file? This module is responsible for propagating the FLASH and other SoC events to registered NRF_SDH_SOC_OBSERVERs such as the nrf_fstorage_sys_evt_handler() in nrf_fstorage_sd.c.

2. Can multiple modules register SD observers using NRF_SDH_BLE_OBSERVER with the same priority, or does every observer need to have its own priority?

Yes, this is not a problem if you don't care about which order the observers are called.

Best regards,

Vidar

[Daniel Dakhno]

I am not quite sure atm the moment. Would my project even link without nrf_sdh_soc.c?

[Vidar Berg]

Yes, that is the problem, is completely decoupled from the other code, so you won't get any linker errors if you forget to include it.

[Daniel Dakhno]

That is unfortunate...

Anyway, thanks, I'll try it out!

[Daniel Dakhno]

You are right, and I was missing the file indeed.

I was also using an old sdk_config.h version, which was missing the following fields:

NRF_SDH_SOC_ENABLED=1
NRF_SDH_SOC_OBSERVER_PRIO_LEVELS=2
BLE_ADV_SOC_OBSERVER_PRIO=1
NRF_SDH_SOC_STACK_OBSERVER_PRIO=0