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wiring_private.h - Internal header file.
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Part of Arduino - http://www.arduino.cc/
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Copyright (c) 2005-2006 David A. Mellis
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General
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Public License along with this library; if not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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Boston, MA 02111-1307 USA
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$Id: wiring.h 239 2007-01-12 17:58:39Z mellis $
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#ifndef WiringPrivate_h
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#define WiringPrivate_h
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#include <avr/interrupt.h>
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//#include "Arduino.h"
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#define clockCyclesPerMicrosecond() ( F_CPU / 1000000L )
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#define clockCyclesToMicroseconds(a) ( ((a) * 1000L) / (F_CPU / 1000L) )
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#define microsecondsToClockCycles(a) ( ((a) * (F_CPU / 1000L)) / 1000L )
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#define cbi(sfr, bit) (_SFR_BYTE(sfr) &= ~_BV(bit))
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#define sbi(sfr, bit) (_SFR_BYTE(sfr) |= _BV(bit))
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#define EXTERNAL_INT_0 0
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#define EXTERNAL_INT_1 1
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#define EXTERNAL_INT_2 2
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#define EXTERNAL_INT_3 3
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#define EXTERNAL_INT_4 4
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#define EXTERNAL_INT_5 5
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#define EXTERNAL_INT_6 6
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#define EXTERNAL_INT_7 7
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#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
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#define EXTERNAL_NUM_INTERRUPTS 8
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#define EXTERNAL_NUM_INTERRUPTS 2
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typedef void (*voidFuncPtr)(void);