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How to configure Flash Configuration setting from program to protect/un-protect the FRDM-K82F Board?

Question asked by isharat mahmood on Feb 11, 2019
Latest reply on Jun 13, 2019 by Robin_Shen


I recently purchased the FRDM-K82F Board.

I downloaded all software from the official website along with the drivers and make the necessary setup in Windows 10 PC.

My config. is as follows:

PC Config : Windows 10 x64

IDE : MCUXpresso IDE v10.3.0_2200

SDK : SDK_2.5.0_FRDM-K82F

Debugger : J-LINK SWD Debugger (without any external Hardware)

Now, I want to use the board for debug/edit cycle for multiple times.


I found there is a flash configuration field setting. If the board is getting locked then I can not use the same board for multiple times. So, please anybody provides the location of field configuration setting in sample example project files.



I found many files that contain the flash configuration field related definitions in FRDM-K82F project folder files.

files are as follows:


here search for FTFA_FSEC_SEC(x)


here search for FTFA_FSEC_SEC


here search for Flash_Config = {0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFF3DFE};


My aim is to modify security related register bits to unprotect device (FRDM-K82F).

Which file/files can be helpful to modify the security-related bits. Is it listed here or I need to find another file. Please specify here. 


Waiting for the reply ASAP.

Thanks in advanced.