Questions about HSM

[mikel-m]

Hello,

I'm programming an HSM following this video, but I don't fully understand how the HSM works.

That is, once I program the HSM, what does it mean? What is "HSM version Maximum counter" and how does it work? How can I rerun the processes from the video?

Thank you.

[Chloe Meunier]

Hello,

 "HSM version Maximum counter" is the max number of devices that can be programmed with this HSM.

If you want additional informations you should also refer to this wiki article : 

https://wiki.st.com/stm32mcu/wiki/Category:Getting_started_with_SFI

Best Regards

Chloé

[mikel-m]

Hello,

For example I only have the HSM (STM32HSM-V2AE) and NUCLEO-U575ZI-Q. I follow the guide "SFI Step-by-step on STM32 boards" once and now the counter is 19. Why is it happening? What can I do if I want to follow the guide again from the beginning? What can I do if I want to program again the HSM?

Thank you in advance