upm/examples/c/bmm150.c

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/*
* Author: Jon Trulson <jtrulson@ics.com>
* Copyright (c) 2017 Intel Corporation.
*
* The MIT License
*
* 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 <stdio.h>
#include <signal.h>
#include "upm_utilities.h"
#include "bmm150.h"
bool shouldRun = true;
void sig_handler(int signo)
{
if (signo == SIGINT)
shouldRun = false;
}
int main(int argc, char **argv)
{
signal(SIGINT, sig_handler);
//! [Interesting]
#if defined(CONFIG_BOARD_ARDUINO_101_SSS)
// ARDUINO_101_SSS (ARC core) must use I2C
// Instantiate a BMM150 instance using default i2c bus and address
bmm150_context sensor = bmm150_init(BMM150_DEFAULT_I2C_BUS,
BMM150_DEFAULT_ADDR, -1);
#elif defined(CONFIG_BOARD_ARDUINO_101)
// ARDUINO_101 (Quark core) where you must use SPI
// Instantiate a BMM150 instance using default SPI bus and pin 10 as CS
bmm150_context sensor = bmm150_init(BMM150_DEFAULT_SPI_BUS,
-1, 10);
#else
// everything else use I2C by default
// Instantiate a BMM150 instance using default i2c bus and address
bmm150_context sensor = bmm150_init(BMM150_DEFAULT_I2C_BUS,
BMM150_DEFAULT_ADDR, -1);
#endif
if (!sensor)
{
printf("bmm150_init() failed.\n");
return 1;
}
// now output data every 250 milliseconds
while (shouldRun)
{
float x, y, z;
if (bmm150_update(sensor))
{
printf("bmm150_update() failed\n");
return 1;
}
bmm150_get_magnetometer(sensor, &x, &y, &z);
printf("Magnetometer x: %f y: %f z: %f uT\n",
x, y, z);
upm_delay_ms(250);
}
printf("Exiting...\n");
bmm150_close(sensor);
//! [Interesting]
return 0;
}