topic S32K148 FlexRAM non-writable size is 512 bytes after flash erase in Kinetis Microcontrollers

S32K148 FlexRAM non-writable size is 512 bytes after flash erase

warai — Thu, 25 Feb 2021 22:05:04 GMT

Hi All,

I did the following and the checked that the S32K148 FlexRAM non-writable size becomes 512 bytes. I know that if CSEC is enabled, I need to reserve 128 bytes but when I check the memory via the debugger I saw that I can't write to the last 512 bytes; i.e. Address 0x14000E00 - 0x14001000.

Did I break the flash?

Re: S32K148 FlexRAM non-writable size is 512 bytes after flash erase

danielmartynek — Fri, 26 Feb 2021 09:02:37 GMT

Hi,

It can be 512 bytes depending on the partitioning.

AN5401 Getting Started with CSEc Security Module:

Regards,

Daniel