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Diff: MMA8452Q.h
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/MMA8452Q.h Sun Dec 13 08:05:49 2015 +0000 @@ -0,0 +1,134 @@ +/* Copyright (c) 2013-2015 Design Methodology Lab +*/ +/* +* Copyright (c) 2010-2011 mbed.org, 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. +*/ + +#ifndef MMA8452Q_H +#define MMA8452Q_H + +#include "mbed.h" + +/** +* MMA8452Q accelerometer example +* +* @code +#include "mbed.h" +#include "MMA8452Q.h" + +#if defined (TARGET_KL25Z) +#define PIN_SCL PTE1 +#define PIN_SDA PTE0 +#elif defined (TARGET_KL46Z) +#define PIN_SCL PTE1 +#define PIN_SDA PTE0 +#elif defined (TARGET_K64F) +#define PIN_SCL PTE24 +#define PIN_SDA PTE25 +#elif defined (TARGET_K22F) +#define PIN_SCL PTE1 +#define PIN_SDA PTE0 +#elif defined (TARGET_KL05Z) +#define PIN_SCL PTB3 +#define PIN_SDA PTB4 +#elif define (TARGET_F411RE) +#define PIN_SCL PB_8 +#define PIN_SDA PB_9 +#else + #error TARGET NOT DEFINED +#endif + +#define MMA8452_I2C_ADDRESS (0x1d) + +int main(void) { + float x, y, z ; + + MMA8452Q acc(PIN_SDA, PIN_SCL, MMA8452_I2C_ADDRESS); + + while (true) { + x = acc.getAccX() ; + y = acc.getAccY() ; + z = acc.getAccZ() ; + printf("X[%.2f] Y[%.2f] Z[%.2f]\n",x, y, z) ; + wait(0.1); + } +} +* @endcode +*/ +class MMA8452Q +{ +public: + /** + * MMA8452Q constructor + * + * @param sda SDA pin + * @param sdl SCL pin + * @param addr addr of the I2C peripheral + */ + MMA8452Q(PinName sda, PinName scl, int addr); + + /** + * MMA8452Q destructor + */ + ~MMA8452Q(); + + /** + * Get the value of the WHO_AM_I register + * + * @returns WHO_AM_I value + */ + uint8_t getWhoAmI(); + + /** + * Get X axis acceleration + * + * @returns X axis acceleration + */ + float getAccX(); + + /** + * Get Y axis acceleration + * + * @returns Y axis acceleration + */ + float getAccY(); + + /** + * Get Z axis acceleration + * + * @returns Z axis acceleration + */ + float getAccZ(); + + /** + * Get XYZ axis acceleration + * + * @param res array where acceleration data will be stored + */ + void getAccAllAxis(float * res); + +private: + I2C m_i2c; + int m_addr; + void readRegs(int addr, uint8_t * data, int len); + void writeRegs(uint8_t * data, int len); + int16_t getAccAxis(uint8_t addr); + +}; + +#endif