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048f1ac08e
Updated the examples to comprehend transitive dependencies. This means
that each example target will no longer have a giant list of -I includes
(the examples at the end of the list had includes for all previous
examples, upwards of 200 -I's on the command line).
* Created a CMakeLists.txt in the upm/examples directory, moved
common functionality to this level.
* C/C++ examples now look to the filename for their dependency
target name, ie; gas-mq2.cxx adds a dependency to the 'gas' target
* Updated a handful of C/C++ example names to reflect this
* Example CMake flow - glob the list of files, add targets for any
special case examples, then att targets for all the rest
Signed-off-by: Noel Eck <noel.eck@intel.com>
62 lines
1.9 KiB
C
62 lines
1.9 KiB
C
/*
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* Author: Jon Trulson <jtrulson@ics.com>
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* Copyright (c) 2017 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <unistd.h>
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#include <stdio.h>
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#include "speaker.h"
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int main ()
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{
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//! [Interesting]
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// Instantiate a Speaker (PWM) on digital pin D3
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speaker_context speaker = speaker_init_pwm(26);
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if (!speaker)
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{
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printf("speaker_init() failed\n");
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return 1;
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}
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// emit a series of frequencies for 500ms each
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speaker_emit(speaker, 50, 500);
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speaker_emit(speaker, 75, 500);
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speaker_emit(speaker, 125, 500);
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speaker_emit(speaker, 250, 500);
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speaker_emit(speaker, 500, 500);
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speaker_emit(speaker, 1000, 500);
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speaker_emit(speaker, 2000, 500);
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speaker_emit(speaker, 3000, 500);
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speaker_emit(speaker, 5000, 500);
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speaker_emit(speaker, 10000, 500);
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printf("Exiting\n");
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speaker_close(speaker);
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//! [Interesting]
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return 0;
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}
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