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ST-Link/V2 - power output *to* target?

Question asked by Andrew Neil on Sep 21, 2015
Latest reply on Oct 1, 2015 by Andrew Neil
Is the ST-Link/V2 able to supply power to the target?

The UM1075 User Manual is not at all clear on this.

AIUI, 'VAPP' (pins 1 & 2 on the 20-pin JTAG/SWD connector) provides the supply voltage from the target; ie, it is an input to the ST-Link.
This is in accordance with the standard ARM 20-pin JTAG pinout.

http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0499b/BEHEIHCE.html

But 'VDD' (pin 19 on the 20-pin JTAG/SWD connector) is not at all clear - is this an input or an output?
Whatever it is, this is not in accordance with the standard ARM 20-pin JTAG pinout.

On the Keil (an ARM company) uLink, this pin is Not Connected:
http://www.keil.com/support/man/docs/ulink2/ulink2_hw_connectors.htm


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