MAG3110 magnetometer library
Dependents: FRDM-FXS-MULTI2-B_SensorShield_HelloWorld xtrinsic_sensors
Diff: MAG3110.cpp
- Revision:
- 0:f430a728163a
- Child:
- 1:4194a41cfd16
diff -r 000000000000 -r f430a728163a MAG3110.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/MAG3110.cpp Sat Jan 23 00:04:56 2016 +0000 @@ -0,0 +1,62 @@ + /* 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; + + } + + \ No newline at end of file