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/* 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 MMA8451Q_H
#define MMA8451Q_H
#include "mbed.h"
/**
* MMA8451Q accelerometer example
* #include "mbed.h"
* #include "MMA8451Q.h"
*
* #define MMA8451_I2C_ADDRESS (0x1d<<1)
*
* int main(void) {
* DigitalOut led(LED_GREEN);
* MMA8451Q acc(P_E25, P_E24, MMA8451_I2C_ADDRESS);
* printf("WHO AM I: 0x%2X\r\n", acc.getWhoAmI());
*
* while (true) {
* printf("-----------\r\n");
* printf("acc_x: %d\r\n", acc.getAccX());
* printf("acc_y: %d\r\n", acc.getAccY());
* printf("acc_z: %d\r\n", acc.getAccZ());
*
* wait(1);
* led = !led;
* }
* }
*/
class MMA8451Q
{
public:
/**
* MMA8451Q constructor
*
* @param sda SDA pin
* @param sdl SCL pin
* @param addr addr of the I2C peripheral
*/
MMA8451Q(PinName sda, PinName scl, int addr);
/**
* MMA8451Q destructor
*/
~MMA8451Q();
/**
* 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
*/
int16_t getAccX();
/**
* Get Y axis acceleration
*
* @returns Y axis acceleration
*/
int16_t getAccY();
/**
* Get Z axis acceleration
*
* @returns Z axis acceleration
*/
int16_t getAccZ();
/**
* Get XYZ axis acceleration
*
* @param res array where acceleration data will be stored
*/
void getAccAllAxis(int16_t * 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
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