led_clock-old/lib/rtc_ds1307.h

24 lines
989 B
C

/* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* Copyright (c) 2016 King Kévin <kingkevin@cuvoodoo.info> */
/* this library handles communication with the I2C RTC IC Maxim DS1307 */
/* peripherals used: I2C (check source for details) */
#pragma once
/* setup communication with RTC IC */
void rtc_setup(void);
/* read seconds (0-59) from RTC IC */
uint8_t rtc_read_seconds(void);