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61 lines
2.4 KiB
61 lines
2.4 KiB
/**************************************************************************** |
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* |
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* Copyright (C) 2012 PX4 Development Team. All rights reserved. |
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* Author: Lorenz Meier <lm@inf.ethz.ch> |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* 3. Neither the name PX4 nor the names of its contributors may be |
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* used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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* |
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****************************************************************************/ |
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/** |
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* @file conversions.h |
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* Definition of commonly used conversions. |
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* |
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* Includes bit / byte / geo representation and unit conversions. |
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*/ |
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#ifndef CONVERSIONS_H_ |
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#define CONVERSIONS_H_ |
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#include <float.h> |
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#include <stdint.h> |
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__BEGIN_DECLS |
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/** |
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* Converts a signed 16 bit integer from big endian to little endian. |
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* |
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* This function is for commonly used 16 bit big endian sensor data, |
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* delivered by driver routines as two 8 bit numbers in big endian order. |
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* Common vendors with big endian representation are Invense, Bosch and |
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* Honeywell. ST micro devices tend to use a little endian representation. |
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*/ |
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__EXPORT int16_t int16_t_from_bytes(uint8_t bytes[]); |
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__END_DECLS |
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#endif /* CONVERSIONS_H_ */
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