Sleep.h

/*
  Sleep.h - Arduino Sleep library
  Copyright (c) arms22<arms22 at gmail.com>.  All right 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.
  
 
*/
 
#ifndef Sleep_h
#define Sleep_h
 
#include <avr/sleep.h>
#include <avr/power.h>
#include <avr/interrupt.h>
 
 
#ifndef cbi
#define cbi(sfr, bit) (_SFR_BYTE(sfr) &= ~_BV(bit))
#endif
#ifndef sbi
#define sbi(sfr, bit) (_SFR_BYTE(sfr) |= _BV(bit))
#endif
 
#include <inttypes.h>
#include <avr/wdt.h>
 
#define TIMER0_ON 1
#define TIMER1_ON 2
#define TIMER2_ON 4
#define TWI_ON 8
#define SPI_ON 16
#define USART0_ON 32
 
class SleepClass
{
public:
    /*
     * 0-9:
    SLEEP_15Ms,
    SLEEP_30MS,
    SLEEP_60MS,
    SLEEP_120MS,
    SLEEP_250MS,
    SLEEP_500MS,
    SLEEP_1S,
    SLEEP_2S,
    SLEEP_4S,
    SLEEP_8S,
     */
    static void setupWatchdog(int ii=6);
 
    /*
     * NEED a RTC crystal!
     *
     * CS22  CS21    CS20    DESCRIPTION
     * 0    0   0    Timer/Counter2 Disabled
     * 0    0   1    No Prescaling 1 -> 0,0078125sec
     * 0    1   0    Clock / 8  2 > 0,0625sec
     * 0    1   1    Clock / 32 3 -> 0,25sec
     * 1    0   0    Clock / 64 4 -> 0,5sec
     * 1    0   1    Clock / 128 5 -> 1sec
     * 1    1   0    Clock / 256 6 -> 2sec
     * 1    1   1    Clock / 1024 7 ->8sec
     */
    static void setupTimer2(int ii=5);
 
 
    static void sleep(uint8_t modules=0,uint8_t sm=SLEEP_MODE_PWR_DOWN);
};
 
extern SleepClass Sleep;
 
 
#endif