FDS_ERR_NO_PAGES problem

[Hansome]

Based on nRF5_SDK_15.3.0_59ac345 for nRF52810 application,

a. With s112_nrf52_6.1.1_softdevice.hex and app.hex, it works normally
b. Add bootloader, fds_init function will return FDS_ERR_NO_PAGES
c. Under bootloader + softdevice + application, all other functions are normal except FDS

So, How to define the FDS pages on the secure_bootloader project?

[bjorn-spockeli]

Ok, so your application will need 66 192bytes of flash ( Code+RO+ZI), i.e. ~64kB.

So adding on the flash required by the SoftDevice and bootloader, i.e. 100kB and 24kB, we end up at 188kB. So there is a total of 4kB left, i.e. one flash page. So there is not any room left for the FDS pages. 

Best regards

Bjørn

[Hansome]

So what are your suggestions? My user data actually takes only a few dozen bytes.

[bjorn-spockeli]

Are you using the Peer Manager in your application? If not then I would look at fstorage over FDS as its flash footprint is mush smaller and more suitable for storing smaller chunks of data, see nRF5 SDK v15.3.0: Flash storage (fstorage).

[stevenlin]

hi hansome,

should be check define in sdk_config.h , 

total pages assign 

FDS_VIRTUAL_PAGES_RESERVED + FDS_VIRTUAL_PAGES