I GOT ERROR 11 when fds_init();

[Aku]

HI

I'm using fds and dfu at the same time with SDK15.3

but it seems that there are some ram conflict or something wrong

my main is look like this

and i get

when the code go to APP_ERROR_CHECK(rc);

I have read some issues in devzone

but i didnt get a solution

please give me some suggestion

thanks

[Jørgen Holmefjord]

Hi,

Error 11 corresponds to FDS_ERR_NO_PAGES, which means that fds_init cannot install the FDS file system because there is not enough room in the Flash. Have you tried erasing the entire flash using 'nrfjprog -e' command before running the example? Is your application taking up all the space in the flash?

Best regards,
Jørgen

[Aku]

Is 'nrfjprog -e' command same as Erase all in nrfconnect programmer?

and it seems that there is much space remain in flash

by the way i set FDS_VIRTUAL_PAGES 3

                          FDS_VIRTUAL_PAGE_SIZE 1024

                          FDS_VIRTUAL_PAGES_RESERVED 0

actually i just want to save device name and some settings that user can set in app

may not exceed 100byte

[Jørgen Holmefjord]

Yes, that is the equivalent function in nRF Connect programmer app.

It looks like you have multiple data blocks located at the top of your flash. FDS will try to initialize itself at the end (top) of the flash, or right below the bootloader if that is present. If you want to store other data, you can add an offset of reserved pages between the end of flash/bootloader and where FDS is initialized by setting FDS_VIRTUAL_PAGES_RESERVED.

[Aku]

HI

i change the FDS_VIRTUAL_PAGES_RESERVED  and the problem is still there.

but i found that the address of the three 8 byte region changed

so are these three region my FDS_VIRTUAL_PAGES?

why are they only 8 byte?

i think they should be 1024?

[Jørgen Holmefjord]

To me they look similar, just one section is gone. What value did you set FDS_VIRTUAL_PAGES_RESERVED to?

If you do not know what data is stored in flash, I would recommend you to run an erase all operation to clear the flash. Alternatively, if you could use the "Save to file" option in nRF Connect programmer app and upload the file, along with information about the ranges of all regions that show up in the window, that could help us identify what is stored in your flash.

[Aku]

HI

1.    I tried 3,6,20  ,and only found that the address had changed

2.    I always run erase all before i write

3.    I will upload it below

thanks

nRF_Connect_Programmer_1587084499777.hex

[Aku]

And here are what i program originally,bootloader(with setting) and hex from my main code

boot_settingV1.hex

origin.hex