Hello Enrique Lopez,
Thank you for your more details.
IAR is special to modify the flash configuration field, you need to do some configuration in the options.
After you modify the FOPT FSEC filed, do the IAR option configuraiton like this:
Project->options, click the below edit button.
Enter :” --enable_config_write “ in Flash loader configuration windows.
Save the .board file as another .board, and choose that.board.
Then try again.
Wish it helps you!
Have a great day,
Kerry
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Hi Enrique Lopez,
If you modified the FSEC, you need to do the reset, then the debug interface will be secured.
Actually, you can modify the code lash address 0x40c, then download it to the flash, do the reset.
When you use the JLINK programmer, you need to select the MKL26 allow security, otherwise, the flash configuration field won't be modified.
Please try again.
If you still have question about it, please let me know!
Have a great day,
Kerry
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Note: If this post answers your question, please click the Correct Answer button. Thank you!
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It has not worked for me.
I am trying to modify the FSEC register from the .hex file but it has not worked.
I want to enable read and write protection flash loading the FSEC register with 0xCC.
How can I change the FSEC record from IAR software?.
.
Thanks for your help Kerry.
Hello Enrique Lopez,
Thank you for your more details.
IAR is special to modify the flash configuration field, you need to do some configuration in the options.
After you modify the FOPT FSEC filed, do the IAR option configuraiton like this:
Project->options, click the below edit button.
Enter :” --enable_config_write “ in Flash loader configuration windows.
Save the .board file as another .board, and choose that.board.
Then try again.
Wish it helps you!
Have a great day,
Kerry
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
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