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Using external power supply and USB at the same time

Question asked by dahl.roger on Feb 16, 2012
Latest reply on Feb 18, 2012 by dahl.roger
I'm wondering if it is safe to have a 5V power supply connected to the EXT_5V pin at the same time as the board is connected to the computer via USB (from which the board also derives a 5V supply). The Discovery user's manual is a bit unclear to me on this point.