samples: Add fxos8700 sample application

# Makefile - fxos8700 sample

#

# Copyright (c) 2016, Freescale Semiconductor, Inc.

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

#     http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

#

BOARD ?= frdm_k64f

CONF_FILE ?= prj.conf

include $(ZEPHYR_BASE)/Makefile.inc

Title: fxos8700

Description:

A sensor application that demonstrates how to use the fxos8700 data ready

interrupt to read accelerometer/magnetometer data synchronously.

--------------------------------------------------------------------------------

Building and Running Project:

This project outputs sensor data to the console. It requires an fxos8700

sensor, which is present on the frdm_k64f and hexiwear_k64 boards. It does not

work on QEMU.

    make BOARD=frdm_k64f

or

    make BOARD=hexiwear_k64

--------------------------------------------------------------------------------

Sample Output:

AX=  9.835380 AY=  0.009576 AZ=  0.383072 MX=  0.015000 MY=  0.509000 MZ=  1.346000

AX=  9.816226 AY=  0.038307 AZ=  0.497993 MX=  0.029000 MY=  0.522000 MZ=  1.350000

AX=  9.844957 AY=  0.067037 AZ=  0.430956 MX=  0.025000 MY=  0.518000 MZ=  1.353000

AX=  9.835380 AY=  0.038307 AZ=  0.497993 MX=  0.026000 MY=  0.507000 MZ=  1.352000

AX=  9.825803 AY=  0.057460 AZ=  0.421379 MX=  0.030000 MY=  0.502000 MZ=  1.342000

AX=  9.816226 AY=  0.019153 AZ=  0.478840 MX=  0.017000 MY=  0.523000 MZ=  1.318000

AX=  9.835380 AY=  0.000000 AZ=  0.507570 MX=  0.014000 MY=  0.502000 MZ=  1.367000

<repeats endlessly>

CONFIG_STDOUT_CONSOLE=y

CONFIG_SYS_LOG=y

CONFIG_I2C=y

CONFIG_SENSOR=y

CONFIG_FXOS8700=y

CONFIG_FXOS8700_SYS_LOG_LEVEL=4

CONFIG_FXOS8700_MODE_HYBRID=y

CONFIG_FXOS8700_TRIGGER_OWN_THREAD=y

# Makefile - fxos8700 sample

#

# Copyright (c) 2016, Freescale Semiconductor, Inc.

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

#     http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

#

obj-y = main.o

/*

 * Copyright (c) 2016 Freescale Semiconductor, Inc.

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

#include <zephyr.h>

#include <sensor.h>

#include <stdio.h>

static void trigger_handler(struct device *dev, struct sensor_trigger *trigger)

{

	struct sensor_value accel[3];

	struct sensor_value magn[3];

	sensor_sample_fetch(dev);

	sensor_channel_get(dev, SENSOR_CHAN_ACCEL_ANY, accel);

	sensor_channel_get(dev, SENSOR_CHAN_MAGN_ANY, magn);

	/* Print accel x,y,z and mag x,y,z data */

	printf("AX=%3d.%06d AY=%3d.%06d AZ=%3d.%06d "

	       "MX=%3d.%06d MY=%3d.%06d MZ=%3d.%06d\n",

		accel[0].val1, accel[0].val2,

		accel[1].val1, accel[1].val2,

		accel[2].val1, accel[2].val2,

		magn[0].val1, magn[0].val2,

		magn[1].val1, magn[1].val2,

		magn[2].val1, magn[2].val2

	      );

}

void main(void)

{

	struct device *dev = device_get_binding(CONFIG_FXOS8700_NAME);

	if (dev == NULL) {

		printf("Could not get fxos8700 device\n");

		return;

	}

	struct sensor_trigger trig = {

		.type = SENSOR_TRIG_DATA_READY,

		.chan = SENSOR_CHAN_ACCEL_ANY,

	};

	if (sensor_trigger_set(dev, &trig, trigger_handler)) {

		printf("Could not set trigger\n");

		return;

	}

}