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

[gowthaman_krish]

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]

Hi Gowtham,

Do you use CSEc in the application?

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

https://www.nxp.com/docs/en/application-note/AN12130.pdf

Section 3.2.5.2 Mass erase and CSEc considerations

Regards,

Daniel

[AsafTv]

Hi,

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