How does secure boot of STM32 work?

Does it have hardware ROM for keys and certificates?

Can you bypass it by boot from USB?

What is the crypto hardware?

Is there a detailed block diagram?

This topic has been closed for replies.

ST Employee

Hello @SShoh.1 ,

STM32 MCU families have no secure boot implemented in ROM.

STM32 boots either on flash or on a internal bootloader that is used to flash the content of the firmware.

You have all details in reference manual of each STM32.

Best regards

Jocelyn

Sign up