33 lines
992 B
C
33 lines
992 B
C
/*
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* digital.h
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*
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* Lightweight macro implementation of AVR pin numbering for
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* accessing Atmel digital and analog pins.
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*
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* pin_mode(A1, OUTPUT);
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* digital_write(A1, HIGH);
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* pin_mode(A2, INPUT);
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* digital_read(A2);
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*
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* This file is based on the excellent ArduinoLite project by
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* Shikai Chen <csk@live.com>.
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*
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* http://code.google.com/p/arduino-lite/
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* http://www.csksoft.net/
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*
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* Copyright (c) 2010-2011 Shikai Chen, Mika Tuupola
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*
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* Licensed under the LGPL 2.1 license:
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* http://www.opensource.org/licenses/lgpl-2.1.php
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*/
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#ifndef DIGITAL_H
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#define DIGITAL_H
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#include "pins.h"
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#define digital_read(pin) EXPAND_WRAPPER(_DIGITAL_READ, PIN_TO_PORT(pin), PIN_TO_MASK(pin))
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#define digital_read_raw(pin) EXPAND_WRAPPER(_DIGITAL_READ_RAW, PIN_TO_PORT(pin), PIN_TO_MASK(pin))
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#define digital_write(pin, val) DIGITAL_WRITE_##val(pin)
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#define digital_toggle(pin) EXPAND_WRAPPER(_DIGITAL_TOGGLE, PIN_TO_PORT(pin), PIN_TO_MASK(pin))
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#endif /* DIGITAL_H */ |