ble_app_uart -> Flash Data Storage

[Siva]

Hi,

I am developing an app using the base module "ble_app_uart". In our application we would like to store data in the flash memory.

I am using "Flash Data Storage" examples in my project and it stopped my BLE to advertise. I have attached my code, could any one help me how to store, update, delete and read in flash.main.c

Siva

[Petter Myhre]

Maybe you are restarting because of a returned error? Please see this for more information. Have you tried to use the debugger? Are you even getting to ble_advertising_start()?

[Siva]

Petter, you are right it's restarting after line 704 which means there is something wrong in fds_test_find_and_delete() function. Have you got any basic example that uses "Flash Data Storage" because I couldn't find any practical example other than one in the

"Software Development Kit > nRF5 SDK > nRF5 SDK v11.0.0 > Libraries->Experimental: Flash Data Storage->Usage".

[Siva]

Petter, Inside "fds_test_find_and_delete" function "fds_gc();" is not returning FDS_SUCCESS same problem in "fds_test_write" with "fds_record_write();". If you have an example for this data storage application it will save lot of time.

[Stefan Birnir Sverrisson]

Hi Siva

There is fds example available here

[emdi]

My guess is that you have called fds_init() without waiting for the event FDS_EVT_INIT before calling the other fds functions. If I am right, those function call return values are FDS_ERR_NOT_INITIALIZED.

To solve this, set a global flag in the fds event handler and only proceed to write/gc etc after that flag is set.

Hope this helps,

E