ST-Link/V2 - Can I short Vcc and Vdd lines?

[nate1]

Posted on August 27, 2014 at 23:37

Is there any reason why I could not (or you recommend to not) short the Vcc (pin 1&2) and Vdd (pin 19) lines on the ST-Link/V2 programmer during development? I would prefer to power the target application board, via the programmer, during development to eliminate the need for an external power supply. 

Thanks

[Tesla DeLorean]

Posted on August 28, 2014 at 04:13

Just be cautious, the pin 19 usage is a non-standard, and SEGGER's J-Link pushes out 5V on this pin.

[nate1]

Posted on August 29, 2014 at 23:56

Great, thanks, Clive.