Is it possible to use ST-Link/V2 programmer with different power supply voltage? My board has power supply of 2.7V (uC STM32L053). Have tried connecting ST_Link's Vapp to my 2.7V, probed SWD interface lines (not connected to my uC) and there are still 3.3V levels on them... I'm afraid to connect all the interface because I have suspicion that these levels incompatibility caused my uC noise and internal structure damages as I wrote in my previous post.
Thanks in advance!