Powering NUCLEO-H743ZI2 with User USB?

[JJ.5]

I'm currently working on a project involving a NUCLEO-H743ZI2 board.

I want to know if it's possible to power the board with User USB instead of ST-Link USB.

Or if it's possible to transfer data using ST-Link USB and use User USB for debugging.

Thank you in advance!

[Pavel A.]

Frankly I've never tried this)) A common ground is needed. But there's the 5V power.

[Nikita91]

It's almost a joke... I don't know how the other side will react, especially with a USB C.

[JJ.5]

@pavel A.​ @Nikita91​ @FLeon.4​ @Rodo​ 

I found the board NUCLEO-H743ZI2 can be powered by the user usb automatically.

First, I need to connect both ST-Link USB and User USB to two USB ports.

Then, I can just unplug the ST-Link USB and the board is still running.

Not sure why.

I also attached a image below. As you can see, the LED lights are on and ST-Link usb(black) is unplugged

 

The trick is let ST-Link USB power the board first then switch to User USB by unpluging the ST-Link USB.

I'm not sure this functionality is mentioned on the user manual.

Is there a way to make the board boot up from User USB?

Thanks!

[Pavel A.]

> Is there a way to make the board boot up from User USB?

Now we are back to square one.

[JJ.5]

Hello again,

What do you mean by "square one"?

[Nikita91]

Return to the question at the beginning of this post.

The 1st step of the game...