e65dabb119
We can now directly compile arduino sketches (.pde) files. Arduino compatible analogWrite works now. But there is still a long way to go, serial I/O and timer stuff (delay, millis etc) currently don't work (not tested but I don't expect this to work). It can be used in an arduino sketch or in a normal contiki program. We get a PWM frequency of 490.2 Hz (a period of 2.040 ms), that's Arduino compatible. If you need different frequencies see native timer usage in examples/osd/pwm-example In a contiki program you have to call arduino_pwm_timer_init to initialize the timer before pwm works. The arduino sketch wrapper already does this. For running a sketch, see examples/osd/arduino-sketch
49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
/*
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wiring_analog.c - analog input and output
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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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Modified 28 September 2010 by Mark Sproul
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$Id: wiring.c 248 2007-02-03 15:36:30Z mellis $
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*/
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#include "wiring_private.h"
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#include "pins_arduino.h"
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#include "adc.h"
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uint8_t analog_reference = DEFAULT;
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void analogReference(uint8_t mode)
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{
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// can't actually set the register here because the default setting
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// will connect AVCC and the AREF pin, which would cause a short if
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// there's something connected to AREF.
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analog_reference = mode;
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}
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int analogRead(uint8_t pin)
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{
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return readADC(pin);
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}
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/*
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* analogWrite is now implemented in dev/arduino/arduino-compat.h
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*/
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