File content as of revision 0:cad18db1e431:

/**
 * @author Jose R. Padron
 * @author Used HMC5883L 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 HMC5883L digital compass.
 *
 * Datasheet:
 *
 * http://www.ssec.honeywell.com/magnetic/datasheets/HMC5883L.pdf
 */
 
#ifndef HMC5883L_H
#define HMC5883L_H
 
/**
 * Includes
 */
#include "mbed.h"
 
/**
 * Defines
 */
#define HMC5883L_I2C_ADDRESS 0x1E //7-bit address. 0x3C write, 0x3D read.
#define HMC5883L_I2C_WRITE   0x3C 
#define HMC5883L_I2C_READ    0x3D 
 
//Values Config A
#define HMC5883L_0_5HZ_NORMAL         0x00
#define HMC5883L_0_5HZ_POSITIVE       0x01
#define HMC5883L_0_5HZ_NEGATIVE       0x02
 
#define HMC5883L_1HZ_NORMAL           0x04
#define HMC5883L_1HZ_POSITIVE         0x05
#define HMC5883L_1HZ_NEGATIVE         0x06
 
#define HMC5883L_2HZ_NORMAL           0x08
#define HMC5883L_2HZ_POSITIVE         0x09
#define HMC5883L_2HZ_NEGATIVE         0x0A
 
#define HMC5883L_5HZ_NORMAL           0x0C
#define HMC5883L_5HZ_POSITIVE         0x0D
#define HMC5883L_5HZ_NEGATIVE         0x0E
 
#define HMC5883L_10HZ_NORMAL           0x10
#define HMC5883L_10HZ_POSITIVE         0x11
#define HMC5883L_10HZ_NEGATIVE         0x12
 
#define HMC5883L_20HZ_NORMAL           0x14
#define HMC5883L_20HZ_POSITIVE         0x15
#define HMC5883L_20HZ_NEGATIVE         0x16
 
#define HMC5883L_50HZ_NORMAL           0x18
#define HMC5883L_50HZ_POSITIVE         0x19
#define HMC5883L_50HZ_NEGATIVE         0x1A
 
//Values Config B
#define HMC5883L_0_7GA         0x00
#define HMC5883L_1_0GA         0x20
#define HMC5883L_1_5GA         0x40
#define HMC5883L_2_0GA         0x60
#define HMC5883L_3_2GA         0x80
#define HMC5883L_3_8GA         0xA0
#define HMC5883L_4_5GA         0xC0
#define HMC5883L_6_5GA         0xE0
 
//Values MODE
#define HMC5883L_CONTINUOUS   0x00
#define HMC5883L_SINGLE       0x01
#define HMC5883L_IDLE         0x02
#define HMC5883L_SLEEP        0x03
 
 
 
#define HMC5883L_CONFIG_A     0x00
#define HMC5883L_CONFIG_B     0x01
#define HMC5883L_MODE         0x02
#define HMC5883L_X_MSB        0x03
#define HMC5883L_X_LSB        0x04
#define HMC5883L_Y_MSB        0x05
#define HMC5883L_Y_LSB        0x06
#define HMC5883L_Z_MSB        0x07
#define HMC5883L_Z_LSB        0x08
#define HMC5883L_STATUS       0x09
#define HMC5883L_IDENT_A      0x0A
#define HMC5883L_IDENT_B      0x0B
#define HMC5883L_IDENT_C      0x0C
 
 
 
/**
 * Honeywell HMC5883L digital compass.
 */
class HMC5883L {
 
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.
     */
    HMC5883L(PinName sda, PinName scl);
 
        
     /**
     * Enter into sleep mode.
     *
     */
    void setSleepMode();
    
       
     /**
     * Set Device in Default Mode.
     * HMC5883L_CONTINUOUS, HMC5883L_10HZ_NORMAL HMC5883L_1_0GA
     */
    void setDefault();
    
       
    /**
     * 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 output of X axis.
     *
     * @return x-axis magnetic value
     */
    int getMx();
    
    /**
     * Get the output of Y axis.
     *
     * @return y-axis magnetic value
     */
    int getMy();
    
    /**
     * Get the output of Z axis.
     *
     * @return z-axis magnetic value
     */
    int getMz();
   
    
    /**
     * Get the current operation mode.
     *
     * @return Status register values
     */
    int getStatus(void);
 
  
 
    I2C* i2c_;
 
   
 
};
 
#endif /* HMC5883L_H */