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| 1993 | - | 1 | /* |
| 2 | * HMC.cpp - Interface a Honeywell HMC5843 magnetometer to an AVR via i2c |
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| 3 | * Version 0.1 - http://www.timzaman.com/ |
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| 4 | * Copyright (c) 2011 Tim Zaman |
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| 5 | * All rights reserved. |
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| 6 | * |
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| 7 | * Redistribution and use in source and binary forms, with or without |
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| 8 | * modification, are permitted provided that the following conditions |
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| 9 | * are met: |
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| 10 | * 1. Redistributions of source code must retain the above copyright |
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| 11 | * notice, this list of conditions and the following disclaimer. |
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| 12 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 13 | * notice, this list of conditions and the following disclaimer in the |
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| 14 | * documentation and/or other materials provided with the distribution. |
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| 15 | * |
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| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS |
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| 17 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
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| 18 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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| 19 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
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| 20 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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| 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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| 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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| 23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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| 24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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| 25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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| 26 | * POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 29 | #include "WProgram.h" |
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| 30 | |||
| 31 | #ifndef HMC_h |
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| 32 | #define HMC_h |
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| 33 | |||
| 34 | #define HMC5883_WriteAddress 0x1E // i.e 0x3C >> 1 |
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| 35 | #define HMC5883_ModeRegisterAddress 0x02 |
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| 36 | #define HMC5883_ContinuousModeCommand 0x00 |
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| 37 | #define HMC5883_DataOutputXMSBAddress 0x03 |
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| 38 | |||
| 39 | class HMC5843 |
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| 40 | { |
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| 41 | public: |
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| 42 | HMC5843(); |
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| 43 | void init(); |
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| 44 | void getValues(int *x, int *y, int *z); |
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| 45 | void getAngle(int *a); |
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| 46 | private: |
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| 47 | }; |
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| 48 | |||
| 49 | extern HMC5843 HMC; |
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| 50 | |||
| 51 | #endif // HMC_h |