Merge remote-tracking branch 'upstream/master' into e6-upstream2
Merge remote-tracking branch 'upstream/master' into e6-upstream2
Merge remote-tracking branch 'upstream/master' into e6-upstream2
some sugar for the preprocessor if DEBUG_USE_USART is undefined
Merge pull request #198 from sauttefk/e6-upstream2

some sugar for the preprocessor if DEBUG_USE_USART is undefined