AM2632: KeyWriter SBL error: MSV is Protected, can't program

Wang Mason

Part Number: AM2632

When I ran KeyWriter SBL, the following problem occurred.

It was run once before, but halfway through it showed "efues writing row failed", and then when it was run again, the following error occurred. What could be the reason for this? Is there any way to solve it?

3 months ago

0 Wang Mason 3 months ago

Prodigy 80 points

I attempted to regenerate the certificate using the --msv-ovrd command, but encountered the issue of "Efuse writing row failed" all the time.

+1 Nikhil Dasan 3 months ago in reply to Wang Mason

TI__Guru* 90891 points

Hi Wang,

This version of OTP KW does not support rewrite of the fields already written and it throws failure.

In the latest OTP KW, we have modified this, so that you can retry the write without changing the certificate, so that, if it is already written, it would skip and go ahead to next field.

Please use the latest OTP KW available here.

Secure resources | TI.com

Thanks and Regards,

Nikhil Dasan

Arm-based microcontrollers

Arm-based microcontrollers forum

AM2632: KeyWriter SBL error: MSV is Protected, can't program