scanlime/fadecandy — pull request #44 by robojay (2014-11-22 01:33:45+00:00)
Title: Tweaked frame counting

Prevent frame counting if dataFeedbackPin is stuck low.

This condition was observed using a Teensy 3.1 at 48 MHz in the TestJig. The frame rate test started before the first data shifted out from the LEDs, resulting in very large frame counts (a stuck low looks like continuous frame gaps). This code update waits until data is seen before counting frames.