2025-05-02 1:05 PM
Need some clarification on implementing the DFU functionality on STM32L412KBU3.
According to the note in AN2606 (page 350), it states: "VDDUSB IO must be connected to 3.3 V" however, on the STM32L412KBU3 (UFQFPN32) the VDDUSB pin does not exist.
Currently, VDD is powered by +1V8 on my application of the STM32L412KBU3.
Will I have any issues with DFU moving forward?
2025-05-02 1:40 PM
Dear @JChristian ,
In this case, you can not use USB for DFU and you can instead use others protocols.
STOne-32
2025-05-02 4:01 PM
To enable DFU do you suggest powering VDD with 3.3V or is DFU not available at all for STM32L412KBU3?