upm/examples/c/mma7660.c
Mihai Tudor Panu 89d5de43e0 license: update to SPDX style license text throughout
Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
2020-03-05 15:13:36 -08:00

71 lines
1.4 KiB
C

/*
* Author: Jon Trulson <jtrulson@ics.com>
* Copyright (c) 2015 Intel Corporation.
*
* This program and the accompanying materials are made available under the
* terms of the The MIT License which is available at
* https://opensource.org/licenses/MIT.
*
* SPDX-License-Identifier: MIT
*/
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <signal.h>
#include "upm_utilities.h"
#include "mma7660.h"
int shouldRun = true;
void sig_handler(int signo)
{
if (signo == SIGINT)
shouldRun = false;
}
int main(int argc, char **argv)
{
signal(SIGINT, sig_handler);
//! [Interesting]
// Instantiate an MMA7660 on I2C bus 0
mma7660_context accel = mma7660_init(MMA7660_DEFAULT_I2C_BUS,
MMA7660_DEFAULT_I2C_ADDR);
if (!accel)
{
printf("mma7660_init() failed\n");
return 1;
}
// place device in standby mode so we can write registers
mma7660_set_mode_standby(accel);
// enable 64 samples per second
mma7660_set_sample_rate(accel, MMA7660_AUTOSLEEP_64);
// place device into active mode
mma7660_set_mode_active(accel);
while (shouldRun)
{
float ax, ay, az;
mma7660_get_acceleration(accel, &ax, &ay, &az);
printf("Acceleration: x = %f y = %f z = %f\n\n",
ax, ay, az);
upm_delay_ms(500);
}
printf("Exiting...\n");
mma7660_close(accel);
//! [Interesting]
return 0;
}