STM32MP257-EV1 in DFU mode

faye_Lee · ‎2025-05-29

Hello,

How could STM32MP257-EV1 in DFU mode,

I have followed the steps of STM32MP25 Evaluation boards - Starter Package for Android - stm32mpu,

1. install SetupSTM32CubeProgrammer_win64.exe

2. Run the “STM32 Bootloader.bat”

3. Set the boot switches to the off position (boot from UART/USB).

4. Connect the USB type-C (OTG) port (4) to the host PC that contains the downloaded image.
5. Insert the delivered microSD card into the dedicated slot (5).
6. Connect the USB type-C (power supply) port (1) to the power connector or a host PC, and check the power jumper position.
7. Press the reset button (7) to reset the board.

but when I check device manager, nothing new shows up at all.

attached the picture of STM32MP257-EV1 powered on

PatrickF · ‎2025-05-29

hi @faye_Lee

LD6 should be green (or orange).

Seems to be OFF on your picture.

This mean the supply/PC connected on CN21 has not been recognized as a valid USB Type-C supply (required to have the 5V supply being applied to the rest of the board).

Regards

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