How to erase the FLBPR setting in K60?

[kkkk]

I am trying to use AN2295 bootloader on MK60FN1M0VLQ12. When I use the bootloader code, I make a mistake to enable "BOOTLOADER_FLASH_PROTECTION = 1" and I load this bootloader code into K60.

I think it enable FLBPR. When I try to disable "BOOTLOADER_FLASH_PROTECTION ", the IAR can't load

the new compiled code into K60. There is only bootloader code without user application code in K60.

How do I erase the FLBPR to load the new bootloader code and user application code?

[Hui_Ma · Accepted solution]

The "BOOTLOADER_FLASH_PROTECTION = 1" will protect bootloader ROM with modify Flash configuration field addrss 0x408~0x40B values.

Customer can use JTAG debugger tool do mass erase to remove Flash configuration field Flash protection value, even though Flash configuration field address is protected.

Such as using Segger J-Link tool, at J-Link Commander tool to run "unlock Kinetis" command.

Wish it help.

best regards,
Ma Hui

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[kkkk]

It works. Thanks a lot for help.