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DFU mode STM32H7B3

MMarco
Associate II

‎2025-04-15 6:04 AM - last edited on ‎2025-04-15 9:15 AM by

Hello,

we are facing some problem entering DFU mode from application code on our custom boards equipped with STM32H7B3 with bootloader release 0x92. 

On contrary, everything works fine with same board equipped with STM32H7B3 bootloader release 0x91.

Beside the notes on AN2606 related to bootloader history, can someone from ST point out if are there any other changes on bootloader that can cause this strange behaviour?

Thanks,

Regards,

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MMarco
Associate II
In response to MMarco

‎2025-04-29 11:54 PM

Hello @mƎALLEm,

any update or hint from bootloader team?

Thanks,

Regards,

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mƎALLEm
ST Employee
In response to MMarco

‎2025-04-30 1:38 AM

Hello,

If there was any update, I've been able to provide it to you.

Thank you for your patience.

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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MMarco
Associate II
In response to mƎALLEm

‎2025-05-12 3:01 AM

Hello @mƎALLEm,

from our side we have tried to disable several peripherals from our code but still no luck in having bootloader 0x92 working in DFU mode. Appreciate input from bootloader team on how to debug this issue.

 

Thanks,

Best Regards,

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