(Using S32K344, PlatformSDK_S32K3_2022_03, DS3.4)
I have a similar problem to what is described in the following issue:
Abnormal power down causing the Dflash area ???????(S32K342 MCAL) - NXP Community
However, in my case, even the cluster header of the first cluster sector gets corrupt (some cells shown as ???????? in debugger).
As suggested in the other topic, this might be due to an unfortunate power loss during Fls write. However, as power can never be guaranteed, I guess this scenario will occur sooner or later and thus needs systematic handling.
The recommended solution seems to be to modify the hardfault handler to allow for these Fls read (ecc) faults and, hopefully, give the Fee module a chance to correct the problem.
In my humble opinion, the Fee module should be robust even in such brownout scenarios without having to rely on application exception handlers.
Is there an upcoming update to the associated MCAL drivers or maybe an application note on the matter?
Also, the Fee data obviously is not readable after this, so there is a risk of data being lost. Is there a way of configuring the Fee to use duplicated data to avoid this?
Regards,
/Ola
