Kristian Sloth Lauszus e12e219b4e Various fixes and improvements (#96) ...

* Global variables shared between an interrupt and the main code should be volatile

See: https://www.embedded.com/electronics-blogs/beginner-s-corner/4023801/Introduction-to-the-Volatile-Keyword

* There is no reason to change the active report if it has not changed

* Declare local functions and variables static

This both helps the compiler and the programmer

2018-03-11 19:19:15 +01:00

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