The RTC Counter library enables SAMD21 based boards (Arduino Zero, MKR1000 etc.) to use the internal RTC in 32bit counter mode.
Based in part on the RTC library for Arduino Zero.
Copyright (c) 2015 Arduino LLC. All rights reserved.
Copyright (c) 2018 Gabriel Notman. All rights reserved.
This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA