FXAS21002 library
Dependents: FRDM-STBC-AGMP01_SensorStream Hexi_Gyro_Example A_Dragonfly_Freescale_Accel_Mag_Gyro_Sensor_AGM01 A_Dragonfly_BlueMix_QuickStart_NXP_Sensor ... more
FXAS21002.cpp
- Committer:
- AswinSivakumar
- Date:
- 2017-04-24
- Revision:
- 2:504e7f1bbf11
- Parent:
- 1:b774372b3913
File content as of revision 2:504e7f1bbf11:
/*
* Copyright (c) 2015 - 2016, Freescale Semiconductor, Inc.
* Copyright 2016-2017 NXP
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* o Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* o Redistributions in binary form must reproduce the above copyright notice, this
* list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
*
* o Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "FXAS21002.h"
#include "mbed.h"
FXAS21002::FXAS21002(PinName sda, PinName scl) : gyroi2c(sda,scl)
{
}
void FXAS21002::gyro_config(void)
{
char d[2];
d[0] = FXAS21002_CTRL_REG1; //Puts device in standby mode
d[1] = 0x08;
gyroi2c.write(FXAS21002_I2C_ADDRESS, d,2);
d[0] = FXAS21002_CTRL_REG0; //sets FS =+/- 2000 dps
d[1] = 0x00;
gyroi2c.write(FXAS21002_I2C_ADDRESS, d, 2);
d[0] = FXAS21002_CTRL_REG1; //Puts device in active mode
d[1] = 0x0A;
gyroi2c.write(FXAS21002_I2C_ADDRESS, d,2);
}
void FXAS21002::acquire_gyro_data_dps(float * g_data)
{
char data_bytes[7];
gyroi2c.write(FXAS21002_I2C_ADDRESS,FXAS21002_STATUS,1,true); // Read the 6 data bytes - LSB and MSB for X, Y and Z Axes.
gyroi2c.read(FXAS21002_I2C_ADDRESS,data_bytes,7);
g_data[0] = (float)((int16_t)((data_bytes[1]*256) + (data_bytes[2]))) * 0.0625;
g_data[1] = (float)((int16_t)((data_bytes[3]*256) + (data_bytes[4]))) * 0.0625;
g_data[2] = (float)((int16_t)((data_bytes[5]*256) + (data_bytes[6]))) * 0.0625;
}
