Still have problems with supplying nucleo L432KC from external source

[xpp07]

I updated the ST Link firmware, and followed the sequence described in the User Manual. But the sequence says I have to connect the PC, and I don't want to. I just want the controller to run its program without connecting the USB, using a 5V supply connected to the 5V pin.

[Tesla DeLorean]

Perhaps keeping this in the old thread would have been better.

Have you removed SB1 ?

Make some very simple code that toggles PB3

Does it work if you use a USB attached battery pack or charger?

[xpp07]

Yes, SB1 is removed. For the nature of my project, it wouldn't work to use a charger o USB attached battery pack. But, if that's the only solution, I will have to see what I can do.

[Tesla DeLorean]

It is suggested as a method of diagnosing the issue. You should be able to blink an LED attached without connecting to a PC. I'd have to invest a bunch of time to prove that I could do it.

[xpp07]

I've connected the 5V pin to 5V pin of the USB connector through a wire. That way it works.