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

Question asked by baseline on May 1, 2012
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.

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