My Ender 3 was set up with a SKR Mini E3 v1.2 connected to RPi 3B via external USB plug. All was working fine until the X-axis controller died for some reason on the SKR. I am testing a SKR Mini E3 v2.0 and all works great...except I notice that when I power the RPi it powers the SKR from USB.
It appears the options are to run with a modified USB cable that removes +5V (electrical tape, Brian's adapter, or possibly using serial connection. I never noticed this was an issue before but the board died for no reason so wondering if this is a new issue for SKR mini v2 that v1.2 didn't have? I think the board died due to excess heat in the rear mounted box that I'm redesigning, but it could be power potentially.
OctoPrint version, OctoPi version, printer, firmware, browser, operating system, ... as much data as possible
BTT SKR Mini E3 V2
RPi 3B w/ buck converter supplied power from Ender PSU