a110x: Add interrupt support and a suitable example

Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: John Van Drasek <john.r.van.drasek@intel.com>
This commit is contained in:
Jon Trulson
2015-03-25 12:58:02 -06:00
committed by John Van Drasek
parent 317ad35180
commit 4bb077e70b
4 changed files with 118 additions and 2 deletions

View File

@ -104,6 +104,7 @@ add_executable (adafruitms1438-example adafruitms1438.cxx)
add_executable (adafruitms1438-stepper-example adafruitms1438-stepper.cxx)
add_executable (hx711-example hx711.cxx)
add_executable (flex-example flex.cxx)
add_executable (a110x-intr-example a110x-intr.cxx)
include_directories (${PROJECT_SOURCE_DIR}/src/hmc5883l)
include_directories (${PROJECT_SOURCE_DIR}/src/grove)
@ -293,3 +294,4 @@ target_link_libraries (adafruitms1438-example adafruitms1438 ${CMAKE_THREAD_LIBS
target_link_libraries (adafruitms1438-stepper-example adafruitms1438 ${CMAKE_THREAD_LIBS_INIT})
target_link_libraries (hx711-example hx711 ${CMAKE_THREAD_LIBS_INIT})
target_link_libraries (flex-example flex ${CMAKE_THREAD_LIBS_INIT})
target_link_libraries (a110x-intr-example a110x ${CMAKE_THREAD_LIBS_INIT})

View File

@ -0,0 +1,76 @@
/*
* 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;
}