File content as of revision 3:7f74d68580c3:

/**
 * @author Jose R. Padron
 *@author Used HMC5843 library  developed by Aaron Berk as template
 * @section LICENSE
 *
 * Copyright (c) 2010 ARM Limited
 *
 * 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.
 *
 * @section DESCRIPTION
 *
 * Honeywell HMC5843 digital compass.
 *
 * Datasheet:
 *
 * http://www.ssec.honeywell.com/magnetic/datasheets/HMC5843.pdf
 */

#ifndef HMC5843_H
#define HMC5843_H

/**
 * Includes
 */
#include "mbed.h"

/**
 * Defines
 */
#define HMC5843_I2C_ADDRESS 0x1E //7-bit address. 0x3C write, 0x3D read.

#define HMC5843_I2C_WRITE   0x3C 
#define HMC5843_I2C_READ    0x3D 

//Values Config A
#define HMC5843_0_5HZ_NORMAL         0x00
#define HMC5843_0_5HZ_POSITIVE       0x01
#define HMC5843_0_5HZ_NEGATIVE       0x02

#define HMC5843_1HZ_NORMAL           0x04
#define HMC5843_1HZ_POSITIVE         0x05
#define HMC5843_1HZ_NEGATIVE         0x06

#define HMC5843_2HZ_NORMAL           0x08
#define HMC5843_2HZ_POSITIVE         0x09
#define HMC5843_2HZ_NEGATIVE         0x0A

#define HMC5843_5HZ_NORMAL           0x0C
#define HMC5843_5HZ_POSITIVE         0x0D
#define HMC5843_5HZ_NEGATIVE         0x0E

#define HMC5843_10HZ_NORMAL           0x10
#define HMC5843_10HZ_POSITIVE         0x11
#define HMC5843_10HZ_NEGATIVE         0x12

#define HMC5843_20HZ_NORMAL           0x14
#define HMC5843_20HZ_POSITIVE         0x15
#define HMC5843_20HZ_NEGATIVE         0x16

#define HMC5843_50HZ_NORMAL           0x18
#define HMC5843_50HZ_POSITIVE         0x19
#define HMC5843_50HZ_NEGATIVE         0x1A

//Values Config B
#define HMC5843_0_7GA         0x00
#define HMC5843_1_0GA         0x20
#define HMC5843_1_5GA         0x40
#define HMC5843_2_0GA         0x60
#define HMC5843_3_2GA         0x80
#define HMC5843_3_8GA         0xA0
#define HMC5843_4_5GA         0xC0
#define HMC5843_6_5GA         0xE0

//Values MODE
#define HMC5843_CONTINUOUS   0x00
#define HMC5843_SINGLE         0x01
#define HMC5843_IDLE         0x02
#define HMC5843_SLEEP         0x03



#define HMC5843_CONFIG_A     0x00
#define HMC5843_CONFIG_B     0x01
#define HMC5843_MODE         0x02
#define HMC5843_X_MSB        0x03
#define HMC5843_X_LSB        0x04
#define HMC5843_Y_MSB        0x05
#define HMC5843_Y_LSB        0x06
#define HMC5843_Z_MSB        0x07
#define HMC5843_Z_LSB        0x08
#define HMC5843_STATUS       0x09
#define HMC5843_IDENT_A      0x0A
#define HMC5843_IDENT_B      0x0B
#define HMC5843_IDENT_C      0x0C



/**
 * Honeywell HMC5843 digital compass.
 */
class HMC5843 {

public:

    /**
     * Constructor.
     *
     * @param sda mbed pin to use for SDA line of I2C interface.
     * @param scl mbed pin to use for SCL line of I2C interface.
     */
    HMC5843(PinName sda, PinName scl);

        
     /**
     * Enter into sleep mode.
     *
     */
    void setSleepMode();
    
       
     /**
     * Set Device in Default Mode.
     * HMC5843_CONTINUOUS, HMC5843_10HZ_NORMAL HMC5843_1_0GA
     */
    void setDefault();
    
    
    
    /**
     * Perform Self Test.
     *
     */
   // void SelfTest();

    
    /**
     * Read the memory location on the device which contains the address.
     *
     * @param Pointer to a buffer to hold the address value
     * Expected     H, 4 and 3.
     */
    void getAddress(char * address);


    
    /**
     * Set the operation mode.
     *
     * @param mode 0x00 -> Continuous
     *             0x01 -> Single
     *             0x02 -> Idle
     * @param ConfigA values
    * @param ConfigB values
     */
    void setOpMode(int mode, int ConfigA, int ConfigB);
    
     /**
     * Write to  on the device.
     *
       * @param address Address to write to.
     * @param data Data to write.
     */
    void write(int address, int data);

     /* Get the output of all three axes.
     *
     * @param Pointer to a buffer to hold the magnetics value for the
     *        x-axis, y-axis and z-axis [in that order].
     */
    void readData(int* readings);
    
  /* Get the current operation mode.
     *
     * @return Staus register values
     */
    int getStatus(void);

  

    I2C* i2c_;

   

};

#endif /* HMC5843_H */