Powering the stm32F4-Discovery board with a 5V regulator while using ST-Link USB\

Posted on May 01, 2012 at 21:07

Hello,

When connecting a battery/regulator to the 5V pin of the stm32F4-Discovery ( to power the board), is it safe to use plug the USB to the PC for debugging with ST-Link?

Thanks for your help

UPDATE:

I just tested this. Used a 7805 ( connected to 5v pin and GND). The circuit appears to be running fine with both the battery and USB cable on.

#5v #discovery #usb