Files
timely-reference/rtc.h
Max Regan d5bfecedb2 Use the builtin RTC and display it
Its roughly %15 fast, and initializes to zero, but the display
currently shows HH:MM:SS AM/PM.
2019-03-11 22:56:08 -07:00

44 lines
1.4 KiB
C

/*
* Copyright (C) 2019 Max Regan
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef _RTC_H_
#define _RTC_H_
#include <stdbool.h>
#include <stdint.h>
struct time_bcd {
uint8_t hour_tens;
uint8_t hour_ones;
uint8_t minute_tens;
uint8_t minute_ones;
uint8_t second_tens;
uint8_t second_ones;
bool pm;
};
void rtc_init();
void rtc_get_time_bcd(struct time_bcd *tm_bcd);
#endif