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STM32L5 J-Flash RDP Level 2 using

gopikrishnan
Associate II

Hello,

I am trying to use below file to enable RDP 2 on an STM32 L552 controller.

wiki.segger.com/images/7/78/STM32L5_Lock.jflash

 

This has exit step "ExitStep21_Action" that set the DRP Level 1, However, I need to set RDP Level 2 by setting the value as "0x000000CC". But It may also required to lock the FLASH_OTPR so, the value cannot be changed.

 

Here I need to SEGGER J-Flash software program the option bytes to enable RDP Level 2.

I tried to refer the RM0438, but unable to corelate the address defined in the .jflash file and the FLASH_OTPR address given.

Kindly support, to understand how this .jflash file is organized; and proceed further to change RDP Level 1 to Level 2 and lock the FLASH_OTPR, so revert of RDP L2 is not possible.

 

Thank you,

 

1 REPLY 1
Douglas MILLER
ST Employee

This post has been escalated to the ST Online Support Team for additional assistance. We'll contact you directly.