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Difference flash memory secure / unsecure mode KEA128

Question asked by Joop aan den Toorn on Mar 2, 2016
Latest reply on Mar 7, 2016 by Joop aan den Toorn

I am trying to setup a bootloader on a S9KEAZ128 chip that enables software updating, and was reading into the flash protection mechanisms. I noticed on page 249-250 of the reference manual that the flash module FTMRE can either be secured or unsecured, but table 18-4 states all flash command are available in both states. Could it be that the table is incorrect?

I am trying to understand what the practical difference between these two states is, and how to use them.