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* Copyright (C) 2011 Tim Marston <tim@ed.am> and Dan Marston.
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* This file is part of propeller-clock (hereafter referred to as "this
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* program"). See http://ed.am/dev/software/arduino/propeller-clock for more
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published
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* by the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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Time &Time::get_instance()
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// milliseconds at last update
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static unsigned long _last_millis = millis();
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// milliseconds carries over from last update
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static unsigned long _carry = 0;
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static void probe_rtc()
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// get the time from the real-time clock
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RTC.get( rtc_data, true );
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_year = rtc_data[ DS1307_YR ];
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_month = rtc_data[ DS1307_MTH ];
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_day = rtc_data[ DS1307_DAY ];
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_hours = rtc_data[ DS1307_HR ];
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_minutes = rtc_data[ DS1307_MIN ];
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_seconds = rtc_data[ DS1307_SEC ];
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const char *Time::get_month_name()
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static const char *months[] = {
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return months[ _month - 1 ];
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const char *Time::get_day_suffix()
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if( _minutes >= 60 ) {
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// I mean we *could* work out the day... but FUCK IT! We bought
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// some god damn HARDWARE to do that shit!
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_last_millis( millis() ),
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// get the time from the real-time clock
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RTC.get( rtc_data, true );
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_hours = rtc_data[ DS1307_HR ];
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_minutes = rtc_data[ DS1307_MIN ];
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_seconds = rtc_data[ DS1307_SEC ];