"cold" plugging usb?
Posted: Sat Feb 13, 2021 4:58 pm
My pyboards (v1.1) are powered externally via V+. I know from experience it is ok to hot plug/unplug the USB connection while the board is powered on (or at least I haven't had any issues in over 100's of times). However, some time ago I had an issue that made me suspect "cold" plugging it, i.e., having it plugged in when V+ is turned on, was not a good idea, so I haven't done it since...at least not if I remember. But occassionally I have forgotten and it seems to survive ok.
So I thought I'd pose the question to those that have more knowledge of the inner workings of the board. Is is ok to have USB plugged in before applying external power?
So I thought I'd pose the question to those that have more knowledge of the inner workings of the board. Is is ok to have USB plugged in before applying external power?