MMA8451Q.h

00001 #ifndef _MMA8451Q_H_
00002 #define _MMA8451Q_H_
00003 
00004 #include "mbed.h"
00005 /**
00006  * MMA8451Q 3-Axis, 14-bit/8-bit Digital Accelerometer
00007  */
00008  
00009 class MMA8451Q {
00010 public:
00011   /**
00012   * MMA8451Q constructor
00013   *
00014   * @param i2c pointer to the I2C object
00015   * @param addr 7bit addr of the I2C peripheral
00016   */
00017   MMA8451Q(I2C *i2c, int addr);
00018 
00019   /**
00020   * MMA8451Q destructor
00021   */
00022   ~MMA8451Q();
00023  
00024   /**
00025    * get all x, y, z data as int16_t
00026    * @param data[] three int16_t data will be returned
00027    * @returns I2C status 0: success others: I2C error
00028    */ 
00029   int     getAllRawData(int16_t data[]) ;
00030   
00031   /**
00032    * get all x, y, z data as float
00033    * @param data three float data will be returned
00034    * @returns I2C status 0: success others: I2C error
00035    */
00036   int     getAllData(float value[]) ;
00037   int16_t getRawData(uint8_t addr) ;
00038   int16_t getRawX(void) ;
00039   int16_t getRawY(void) ;
00040   int16_t getRawZ(void) ;
00041   
00042   float getAccX(void) ;
00043   float getAccY(void) ;
00044   float getAccZ(void) ;
00045   
00046 private:
00047   I2C *p_i2c;
00048   int m_addr;
00049   int readRegs(int addr, uint8_t * data, int len);
00050   int writeRegs(uint8_t * data, int len);
00051 } ;
00052 
00053 #endif /* _MMA8451Q_H_ */