RTC.h

Go to the documentation of this file.

#ifndef HARDWARE_SAM_RTC_H
#define HARDWARE_SAM_RTC_H

#include <time.h>
#undef RTC

enum {
  SUNDAY,
  MONDAY,
  TUESDAY,
  WEDNESDAY,
  THURSDAY,
  FRIDAY,
  SATURDAY
};

enum {
  JANUARY,
  FEBRUARY,
  MARCH,
  APRIL,
  MAY,
  JUNE,
  JULY,
  AUGUST,
  SEPTEMBER,
  OCTOBER,
  NOVEMBER,
  DECEMBER
};

#define ONE_HOUR 3600

#define ONE_DEGREE 3600

#define ONE_DAY 86400UL

#define UNIX_OFFSET 946684800UL

#define NTP_OFFSET 3155673600UL

#define isotime_r(tm,buf) (strftime (buf, 32, "%F %T", tm), buf)

#define set_zone(x) _timezone = x
#define get_zone() _timezone

class RTC {
public:
  RTC() :
    m_millis(0),
    m_time(0)
  {}

  bool tick()
  {
    uint32_t now = millis();
    if (now - m_millis < 1000) return (false);
    m_time += 1;
    m_millis = now;
    return (true);
  }

  time_t get_time()
  {
    time_t res = m_time;
    return (res);
  }

  void set_time(time_t time)
  {
    m_time = time;
  }

  void get_time(struct tm& now)
  {
    time_t time = get_time();
    gmtime_r(&time, &now);
  }

  void set_time(struct tm& now)
  {
    set_time(mktime(&now) + get_zone());
  }

protected:
  volatile uint16_t m_millis;

  volatile time_t m_time;
};
#endif