gsmcmullin/blackmagic — pull request #25 by beewoolie (2013-09-07 14:46:17+00:00)
Title: Added internal pull-up to PWR_BR.

o Prevent probe from inadvertently powering target. If PWR_BR is
allowed to float, the gate on Q1 (blackmagic_mini) will tend to be
close enough to zero to turn the transistor on. We activate the
internal pull-up on this IO pin to force the transistor off.