My version of the library for this accelerometer. It works on 800Hz data rate.
Fork of MMA8451Q by
MMA8451Q.h
- Committer:
- DWeng
- Date:
- 2017-07-18
- Revision:
- 1:9c229882cd2b
- Parent:
- 0:7c9ab58f6af3
File content as of revision 1:9c229882cd2b:
/* Copyright (c) 2010-2011 mbed.org, MIT License * Copyright (c) 2014 Antonio Quevedo, UNICAMP * * 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. */ #ifndef MMA8451Q_H #define MMA8451Q_H #include "mbed.h" /** * MMA8451Q accelerometer example, 8-bit samples * * @code * #include "mbed.h" * #include "MMA8451Q.h" * * int main(void) { * * MMA8451Q acc(PTE25, PTE24); * PwmOut rled(LED_RED); * PwmOut gled(LED_GREEN); * PwmOut bled(LED_BLUE); * uint8_t data[3]; * * while (true) { acc.getAccAllAxis(data); * rled = 1.0 - abs(data[0]/128); * gled = 1.0 - abs(data[0]/128); * bled = 1.0 - abs(data[0]/128); * wait(0.4); * } * } * @endcode */ class MMA8451Q { public: /** * MMA8451Q constructor * * @param sda SDA pin * @param sdl SCL pin */ MMA8451Q(PinName sda, PinName scl); /** * MMA8451Q destructor */ ~MMA8451Q(); /** * Get XYZ axis acceleration, 8-bits * * @param res array where acceleration data will be stored */ void getAccAllAxis(int16_t * res); private: I2C m_i2c; void readRegs(int addr, uint8_t * data, int len); void writeRegs(uint8_t * data, int len); }; #endif