Inquiry on Cybersecurity Features for Preventing Unauthorized Firmware Uploads in STM32F7xxx Family Microcontroller

[ManjuMulimani]

Hello,

We have a cybersecurity requirement to protect against unauthorized firmware uploads during data load operations or shop load using JTAG. Is there a feature available in the STM32F7xxx family Microcontroller that complies with cybersecurity standards to prevent unauthorized firmware uploads?

Any guidance or documentation on how to achieve this would be greatly appreciated.

Regards,

-Manju

[TDK]

Setting RDP=2 will disable JTAG entirely. That is one way to prevent uploads.

Apart from that, on the F7 series, no not really. If someone has physical access to your device, they can revert RDP to level 0 (if it's at level 1) and upload their own firmware. Nothing you can do about it.