test
FXOS8700.cpp
- Committer:
- AswinSivakumar
- Date:
- 2017-04-25
- Revision:
- 4:df2167370234
- Parent:
- 2:98ea52282575
- Child:
- 5:38ace6067c7d
File content as of revision 4:df2167370234:
/* * 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 "FXOS8700.h" #include "mbed.h" FXOS8700::FXOS8700(PinName sda, PinName scl) : accelmagi2c(sda,scl) { } void FXOS8700::accel_config(void) { char d[2]; d[0] = FXOS8700_CTRL_REG1; //Puts device in Standby mode d[1] = 0x00; accelmagi2c.write(FXOS8700_I2C_ADDRESS, d,2); d[0] = FXOS8700_CTRL_REG1; //Puts device in Active mode d[1] = 0x01; accelmagi2c.write(FXOS8700_I2C_ADDRESS, d, 2); } void FXOS8700::mag_config(void) { char d[2]; d[0] = FXOS8700_CTRL_REG1; //Puts device in Standby mode d[1] = 0x00; accelmagi2c.write(FXOS8700_I2C_ADDRESS, d,2); d[0] = FXOS8700_M_CTRL_REG1; //Puts device in hybrid mode (both accel and mag are active) d[1] = 0x03; accelmagi2c.write(FXOS8700_I2C_ADDRESS, d, 2); d[0] = FXOS8700_CTRL_REG1; //Puts device in Active mode d[1] = 0x01; accelmagi2c.write(FXOS8700_I2C_ADDRESS, d,2); } void FXOS8700::acquire_accel_data_g(float * a_data) { char data_bytes[7]; char d[1]; d[0]=FXOS8700_STATUS; accelmagi2c.write(FXOS8700_I2C_ADDRESS,d,1,true); // Read the 6 data bytes - LSB and MSB for X, Y and Z Axes. accelmagi2c.read(FXOS8700_I2C_ADDRESS,data_bytes,7); a_data[0] = ((float)((int16_t)(((data_bytes[1]*256) + (data_bytes[2])))>> 2) * 0.000244); a_data[1] = ((float)((int16_t)(((data_bytes[3]*256) + (data_bytes[4])))>> 2) * 0.000244); a_data[2] = ((float)((int16_t)(((data_bytes[5]*256) + (data_bytes[6])))>> 2) * 0.000244); } void FXOS8700::acquire_mag_data_uT(float * m_data) { char data_bytes[7]; char d[1]; d[0]=FXOS8700_MDR_STATUS; accelmagi2c.write(FXOS8700_I2C_ADDRESS,d,1,true); // Read the 6 data bytes - LSB and MSB for X, Y and Z Axes. accelmagi2c.read(FXOS8700_I2C_ADDRESS,data_bytes,7); m_data[0] = (float)((int16_t)((data_bytes[1]*256) + (data_bytes[2]))) * 0.1; m_data[1] = (float)((int16_t)((data_bytes[3]*256) + (data_bytes[4]))) * 0.1; m_data[2] = (float)((int16_t)((data_bytes[5]*256) + (data_bytes[6]))) * 0.1; }