fstorage without softdevice

[Alexander Schrab]

I am trying to get fstorage to work, but I seem to miss some of the symbols needed: "error: 'NRF_EVT_FLASH_OPERATION_SUCCESS' undeclared". These are declared in softdevice headers, so I am assuming I need a softdevice for this to work?

Is this correct? Is fstorage only for softdevice enabled firmware? Can I write to flash in another way when I am not using any softdevice?

[emdi]

At the moment it is not possible to use fstorage without the SoftDevice (which needs to be enabled also). In that case you can use the non-volatile memory controller directly. You could check nrf_nvmc in components/drivers_nrf/hal/ or the flashwrite example in examples/peripheral/

[Jørgen Holmefjord]

From release notes of SDK 14.0.0:

Drivers and libraries

• Reworked and improved the fstorage library (now called nrf_fstorage).
  • Now supports operation with no SoftDevice.
  • Now supports operation when the SoftDevice is present and its state changes. ..
• Updated Flash data storage (FDS).
  • Can now work with no SoftDevice by using the nrf_fstorage_nvmc backend.
  • The 'Chunk' functionality has been removed.