How to use OTP 3 during SSP generation using ST Trusted Package creator

[mayurpatel-karcher]

Hello,

MPU: STM32MP13xx

I have a basic que regarding OTP words which are not free for user to use. We are using SSP and for that we need to generate a secret file as per documentation.

We want to write OTP values like 3 and 18 but we get this error message in GUI. 

ex. OTP_WORD_3=0x185b5a00.

QUE:

- Is it possible to consider OTP 3 during generation of secret file?

if NO, what is the other alternative? is the Flasing of OTP via ST Cube Programmer is the only way?

(with the goal in mind that we do not want to include more steps in the production scenario)

REF:

I have already gone through many ST Docs like below

- 

- https://www.st.com/resource/en/user_manual/um2238-stm32-trusted-package-creator-tool-software-description-stmicroelectronics.pdf

- https://wiki.st.com/stm32mpu/wiki/STM32CubeProgrammer#How_to_fuse_OTP

- https://wiki.st.com/stm32mpu/wiki/STM32CubeProgrammer_OTP_management