109 lines
2.6 KiB
C
109 lines
2.6 KiB
C
|
/* 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
|