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MPL3115.cpp

Committer:
AswinSivakumar
Date:
2016-01-23
Revision:
0:2cc0f6ef330f
Child:
1:117534dd5101

File content as of revision 0:2cc0f6ef330f:

 /* 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 "MPL3115.h"
 #include "mbed.h"

MPL3115::MPL3115(PinName sda, PinName scl) : MPL3115_i2c(sda,scl)
 {
       
 }
    
 void MPL3115::MPL3115_config(void)
 {
   char d[2]; 
   d[0] = MPL3115_CTRL_REG1;                     //Puts device in Standby mode
   d[1] = 0x00; 
   MPL3115_i2c.write(MPL3115_I2C_ADDRESS, d,2);   
          
   
   d[0] = MPL3115_CTRL_REG1;                     //Puts device in Active mode and in altimeter mode
   d[1] = 0x81;
   MPL3115_i2c.write(MPL3115_I2C_ADDRESS, d, 2);   
      
 }
 
 
 
 void MPL3115::acquire_MPL3115_data_Altitude_in_m(float * alt_data)
 {
  
   char data_bytes[7];
   char d[1];
   d[0]=MPL3115_STATUS;
   MPL3115_i2c.write(MPL3115_I2C_ADDRESS,d,1,true);  // Read the 6 data bytes - LSB and MSB for X, Y and Z Axes.
   MPL3115_i2c.read(MPL3115_I2C_ADDRESS,data_bytes,5);
   alt_data[0]= (float)((short)((data_bytes[1] << 8 ) | data_bytes[2])) + (float)(data_bytes[3]>>4) * 0.0625;
  
  
 }