File content as of revision 0:f430a728163a:

 /* 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 "MAG3110.h"
 #include "mbed.h"

MAG3110::MAG3110(PinName sda, PinName scl) : MAG3110_i2c(sda,scl)
 {
       
 }
    
 
  void MAG3110::MAG3110_config(void)
 {
   char d[2];
   d[0] = MAG3110_CTRL_REG1;                     //Puts device in Standby mode
   d[1] = 0x00;
   MAG3110_i2c.write(MAG3110_I2C_ADDRESS, d,2);   
          
      
   d[0] = MAG3110_CTRL_REG2;                   //Set Automatic Magnetic Sensor Reset bit
   d[1] = 0x80;
   MAG3110_i2c.write(MAG3110_I2C_ADDRESS, d, 2);   
   
   d[0] = MAG3110_CTRL_REG1;                   //Set ODR=40Hz and OSR=32 and set device to active mode.
   d[1] = 0x09;
   MAG3110_i2c.write(MAG3110_I2C_ADDRESS, d, 2);   
 
   
 }
 
 void MAG3110::acquire_MAG3110_data_uT(float * m_data)
 {
  
   char data_bytes[7];
   char d[1];
   d[0]=MAG3110_DR_STATUS;
   MAG3110_i2c.write(MAG3110_I2C_ADDRESS,d,1,true);  
   MAG3110_i2c.read(MAG3110_I2C_ADDRESS,data_bytes,7);// Read the 6 data bytes - LSB and MSB for X, Y and Z Axes.

   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;
   
 }