ret = fds_record_write(..) is giving 0x03 error

[Ameer Usman]

I have been using fds for flash saving and read. I have used fds_record_write(..) with no errors and proper readings on the just before performing a 4th fds_record_write(..) but this one gives an error of 0x03. I have changed the FILE_ID and RECORD_KEY but to no avail it still gives the error.

What I do is first rc = fds_record_find(FILE_ID, MAJOR_KEY , &desc, &tok); and see if there is any record and if not then I write or else I update.

What could be causing the error 0x03 on performing another write just like the previous ones in the same code. Is there a limit to number of writes in FILE_ID?

Edit: Is it possible due to queuing multiple writes it is causing it to malfunction? I am not sure how to check if something has been written or not.

[Kenneth]

Error code 0x03 is:

FDS_ERR_UNALIGNED_ADDR,     //!< Error. The input data is not aligned to a word boundary.

To fix this you need to use '__align(4)' for the array you want to store, e.g.:

__align(4) static uint8_t stored_data[N]; 

[Ameer Usman]

I am getting this error on applying the __align(4)

[Kenneth]

My code works in Keil, but maybe in SES you need to use __ALIGN(4), ref:

https://devzone.nordicsemi.com/f/nordic-q-a/49652/the-same-code-getting-fds_err_unaligned_addr-in-release-mode-but-not-in-debug-mode 

[Ameer Usman]

Oh sorry the error I am getting is 0x08

I tried it with the __ALIGN(4) but to no avail.

[Kenneth]

Try #define FDS_OP_QUEUE_SIZE 20 in sdk_config.h

[Ameer Usman]

Increasing FDS_OP_QUEUE_SIZE did the trick.

Thanks Kenneth!