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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; }