32343
843447835d
- IPS200 display menu with real-time status and parameter settings - Camera image processing and line tracking - IMU attitude solution and PID control - WiFi SPI oscilloscope data transmission
98 lines
4.0 KiB
C
98 lines
4.0 KiB
C
/**
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* \file Ifx_Lut.h
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* \brief Lookup defintion with fixed-point angle data type
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*
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*
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*
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* \version disabled
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* \copyright Copyright (c) 2013 Infineon Technologies AG. All rights reserved.
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*
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*
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* IMPORTANT NOTICE
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*
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*
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* Use of this file is subject to the terms of use agreed between (i) you or
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* the company in which ordinary course of business you are acting and (ii)
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* Infineon Technologies AG or its licensees. If and as long as no such
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* terms of use are agreed, use of this file is subject to following:
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* Boost Software License - Version 1.0 - August 17th, 2003
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* Permission is hereby granted, free of charge, to any person or
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* organization obtaining a copy of the software and accompanying
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* documentation covered by this license (the "Software") to use, reproduce,
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* display, distribute, execute, and transmit the Software, and to prepare
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* derivative works of the Software, and to permit third-parties to whom the
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* Software is furnished to do so, all subject to the following:
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* The copyright notices in the Software and this entire statement, including
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* the above license grant, this restriction and the following disclaimer, must
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* be included in all copies of the Software, in whole or in part, and all
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* derivative works of the Software, unless such copies or derivative works are
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* solely in the form of machine-executable object code generated by a source
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* language processor.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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* SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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* FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* \defgroup library_srvsw_sysse_math_lut Look-ups
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* \ingroup library_srvsw_sysse_math
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*
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* \defgroup library_srvsw_sysse_math_f32_lut Look-ups float32
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* \ingroup library_srvsw_sysse_math_lut
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*
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*/
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#ifndef IFX_LUT_H
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#define IFX_LUT_H
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//________________________________________________________________________________________
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#include "Cpu/Std/IfxCpu_Intrinsics.h"
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//________________________________________________________________________________________
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#ifndef IFX_LUT_TABLE_CONST
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/** \brief 0 = Lookup tables are generated and stored in RAM,
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* 1 = Lookup tables are precompiled and stored in FLASH */
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#define IFX_LUT_TABLE_CONST (1)
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#endif
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#if (IFX_LUT_TABLE_CONST != 0)
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/** \brief Lookup table type modifier (stored in ROM) */
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# define IFX_LUT_TABLE const
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#else
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/** \brief Lookup table type modifier (stored in RAM) */
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# define IFX_LUT_TABLE
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#endif
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/** \brief Define the resolution (in bits) of cosinus and sinus table \ingroup library_srvsw_sysse_math_lut */
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#define IFX_LUT_ANGLE_BITS (12)
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/** \brief Define the cosinus and sinus table size \ingroup library_srvsw_sysse_math_lut */
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#define IFX_LUT_ANGLE_RESOLUTION (1 << IFX_LUT_ANGLE_BITS)
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/** \brief Value used as 180 degree angle */
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#define IFX_LUT_ANGLE_PI (IFX_LUT_ANGLE_RESOLUTION / 2)
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//________________________________________________________________________________________
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/** \brief Fixed-point angle type.
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*
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* Resolution is defined by \ref IFX_LUT_ANGLE_RESOLUTION */
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typedef sint32 Ifx_Lut_FxpAngle;
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/** \brief Convert from float32 angle in radian into fixed-point angle type */
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#define IFX_LUT_F32_TO_FXPANGLE(f) ((Ifx_Lut_FxpAngle)(f / IFX_PI * IFX_LUT_ANGLE_PI))
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/** \brief Convert from fixed-point angle type to float32 angle in radian */
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#define IFX_LUT_FXPANGLE_TO_F32(fx) ((float32)fx * IFX_PI / IFX_LUT_ANGLE_PI)
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//________________________________________________________________________________________
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#if (1U << IFX_LUT_ANGLE_BITS) != IFX_LUT_ANGLE_RESOLUTION
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#error (1U << IFX_LUT_ANGLE_BITS) != IFX_LUT_ANGLE_RESOLUTION
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#endif
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//________________________________________________________________________________________
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#endif /* IFX_LUT_H */
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