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Associate II
October 17, 2024
Question

STM32L5 J-Flash RDP Level 2 using

  • October 17, 2024
  • 1 reply
  • 1437 views

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

Douglas MILLER
ST Employee
October 21, 2024

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

Associate II
December 14, 2024

@Douglas MILLER  - Not heard from you for a while.