curiosity got a reaction from tripwire in 2.5 sec delay after power up
chicken, you have solved the mystery. Thankyou.
curiosity reacted to chicken in 2.5 sec delay after power up
Energia has a few timeouts while waiting for the optional external XTAL to spin up. According to the comments in wiring.c, the timeout is 2 seconds.
(Line 80 or thereabouts)