Vadim has posted a tutorial on how to use internal RTC of Stellaris and Tiva Launchpad boards in Energia IDE:
For those of you who still have one of those old Stellaris Launchpads, I’m going to show how to utilize one of its most useful features – real time clock – in a simple way. Actually, the Hibernation module is the same in the new Tiva Launchpad, so it’s supposed to work there as well.
More info at Vadim Panov’s blog.
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