FDS_CRC_CHECK_ON_WRITE

[DimitrisP]

Hello

Assuming I set FDS_CRC_CHECK_ON_WRITE flag in sdk_config to  1, where do i get a notification that somthing went rong? I probably miss something but I need to clarify this for my project. The sdk_config reports that: "This setting can be used to make sure that the record data was not altered while being written to flash" I can not undersand how or when I get that info 

BR

Dimitris

[Einar Thorsrud]

Hi Dimitris,

You get an event with the result of the write operation for every write. Normally it would be NRF_SUCCESS, but if not it would be an error code. In this case, if there is a CRC check fail on write the result will be FDS_ERR_CRC_CHECK_FAILED.

Einar

[DimitrisP]

Hi Einar

Thanks for the reply.

So if I get it right, in writing operationn when I choose CRC error check there is also a reading that checks the CRC. CRC is allways written and can be checked with flags FDS_CRC_CHECK_ON_READ for reading (returns error immediatly) and FDS_CRC_CHECK_ON_WRITE for writing. When writing there is no return value but I get the error with the FDS_EVT_WRITE or FDS_EVT_UPDATE events

Dimitris

[Einar Thorsrud]

Hi Dimitris,

Yes, that is correct.