ST-Link V2 SWD connection by using just SW_DAT, SW_CLK and GND.
I have a custom board powered by using USB, if I need to program a firmware by using the SWD feature in the ST-Link V2 Probe, may I connect just following 3 pins (without VDD) ?- TMS_SWDIO (pin 7)- TCK_SWCLK (pin 9)- GNDDo I need also to connect VDD ...