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How can i Disable Trustzone in stm32L5?

jk.1
Associate II

i am enable trust zone and I make one part as secure world and another part as a non secure world using (SECWM1, SECWM2) but forget to enable Dbank as (Dbank = 1) now I couldn't make any changes in option bytes

my question is

1.how can I enable dual bank mode (Dbank = 1)?

2.if I will launch my both binary what will happen?

3.what are the steps to recover my device?

0693W00000aI1lXQAS.png

1 ACCEPTED SOLUTION

Accepted Solutions
Bubbles
ST Employee

How to disable TrustZone in STM32L5xx devices during development phase - stm32mcu

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

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1 REPLY 1
Bubbles
ST Employee

How to disable TrustZone in STM32L5xx devices during development phase - stm32mcu

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.