topic Re: Protection bytes in flash at addr. 0x400 - 0x40F indicate that readout protection is set - Error in S32K

Protection bytes in flash at addr. 0x400 - 0x40F indicate that readout protection is set - Error

gowthaman_krish — Mon, 22 Feb 2021 04:37:06 GMT

Hi All,

I am Trying to Flash My elf file with HW, but I Couldn't able to Download using Ozone IDE. To more information I attached Error Screen pdf document.

Device "S32K148" selected.

InitTarget() start

InitTarget()

Protection bytes in flash at addr. 0x400 - 0x40F indicate that readout protection is set.

For debugger connection the device needs to be unsecured.

Note: Unsecuring will trigger a mass erase of the internal flash.

Executing default behavior previously saved in the registry.

Device will be unsecured now.

Timeout while unsecuring device. Erase never stops.

InitTarget() end

TotalIRLen = ?, IRPrint = 0x..FFFFFFFFFFFFFFFFFFFFFFF1

Please help me how to resolve it.

Best Regards,

Gowtham K.

danielmartynek — Mon, 22 Feb 2021 13:48:11 GMT

Hi Gowtham,

Do you use CSEc in the application?

Please refer to AN12130 Production Flash Programming Best Practices for S32K1xx MCUs

Section 3.2.5.2 Mass erase and CSEc considerations

Regards,

Daniel

AsafTv — Thu, 30 Jun 2022 16:23:25 GMT

Hi,

ihave the same problem with MK64FN1M0xxx12 i use jflash how do i unprotect the chip with SEGGER jlink?