Flash security in MK10

Hi,

We are using MK10DX256xxx7 controllers. and We use Rowley cross works IDE for programming and Cross connect for ARM for debugging.

We want to secure the flash. So We tried to write 0x00 in FSEC register using Knetics_Startup.s file,

It got reflected in the .hex file but after flashing we tried verify option to check the flash security.

it showing difference in FSEC bits.

kindly let us know the configuration steps for flash protection.

Thanks,

Sarathkumar S