Part Number:CC2640R2F
Dear TI support,
I am having the exact same issue as discussed in the following topic, unfortunately it is closed due to inactivity: 
My current debugger set-up:
When measuring the output of the AUX, TGTSUPPLYOUT I measure apporximitely 0.014 V. I am still able to connect to the target somehow, but it immediately enters an exception state due to no target power.
Are there any settings I am missing to activate this functionality?
Best regards,
Mattia