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- /*
- * Author: Jon Trulson <jtrulson@ics.com>
- * Copyright (c) 2015 Intel Corporation.
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
- #include <unistd.h>
- #include <iostream>
- #include <signal.h>
- #include "a110x.h"
-
- using namespace std;
-
- int shouldRun = true;
-
- void sig_handler(int signo)
- {
- if (signo == SIGINT)
- shouldRun = false;
- }
-
- // Our pulse counter
- volatile unsigned int counter = 0;
-
- // Our interrupt handler
- void hallISR(void *arg)
- {
- counter++;
- }
-
- int main ()
- {
- signal(SIGINT, sig_handler);
-
- //! [Interesting]
- // Instantiate an A110X sensor on digital pin D2
- upm::A110X* hall = new upm::A110X(2);
-
- // This example uses a user-supplied interrupt handler to count
- // pulses that occur when a magnetic field of the correct polarity
- // is detected. This could be used to measure the rotations per
- // minute (RPM) of a rotor for example.
-
- hall->installISR(hallISR, NULL);
-
- while (shouldRun)
- {
- cout << "Pulses detected: " << counter << endl;
-
- sleep(1);
- }
- //! [Interesting]
-
- cout << "Exiting..." << endl;
-
- delete hall;
- return 0;
- }
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