library for pressure sensor
Fork of MPL3115A2 by
Diff: MPL3115.cpp
- Revision:
- 0:2cc0f6ef330f
- Child:
- 1:117534dd5101
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/MPL3115.cpp Sat Jan 23 00:07:22 2016 +0000 @@ -0,0 +1,54 @@ + /* 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; + + + } \ No newline at end of file