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:
2015-12-22
Revision:
1:b774372b3913
Parent:
0:9c9e8aaad4ff
Child:
2:504e7f1bbf11

File content as of revision 1:b774372b3913:

 /* Copyright (c) 2015 NXP Semiconductors. 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 "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;
   
 }