From 9f95ff5b6ba01db09552b84a0ab79607060a2666 Mon Sep 17 00:00:00 2001 From: Ali Labbene Date: Wed, 11 Dec 2019 08:59:21 +0100 Subject: Official ARM version: v5.4.0 Add CMSIS V5.4.0, please refer to index.html available under \docs folder. Note: content of \CMSIS\Core\Include has been copied under \Include to keep the same structure used in existing projects, and thus avoid projects mass update Note: the following components have been removed from ARM original delivery (as not used in ST packages) - CMSIS_EW2018.pdf - .gitattributes - .gitignore - \Device - \CMSIS - \CoreValidation - \DAP - \Documentation - \DoxyGen - \Driver - \Pack - \RTOS\CMSIS_RTOS_Tutorial.pdf - \RTOS\RTX - \RTOS\Template - \RTOS2\RTX - \Utilities - All ARM/GCC projects files are deleted from \DSP, \RTOS and \RTOS2 Change-Id: Ia026c3f0f0d016627a4fb5a9032852c33d24b4d3 --- DSP_Lib/Source/FastMathFunctions/arm_sin_f32.c | 133 ------------------------- 1 file changed, 133 deletions(-) delete mode 100644 DSP_Lib/Source/FastMathFunctions/arm_sin_f32.c (limited to 'DSP_Lib/Source/FastMathFunctions/arm_sin_f32.c') diff --git a/DSP_Lib/Source/FastMathFunctions/arm_sin_f32.c b/DSP_Lib/Source/FastMathFunctions/arm_sin_f32.c deleted file mode 100644 index 8655cf9..0000000 --- a/DSP_Lib/Source/FastMathFunctions/arm_sin_f32.c +++ /dev/null @@ -1,133 +0,0 @@ -/* ---------------------------------------------------------------------- -* Copyright (C) 2010-2014 ARM Limited. All rights reserved. -* -* $Date: 21. September 2015 -* $Revision: V.1.4.5 a -* -* Project: CMSIS DSP Library -* Title: arm_sin_f32.c -* -* Description: Fast sine calculation for floating-point values. -* -* Target Processor: Cortex-M4/Cortex-M3/Cortex-M0 -* -* Redistribution and use in source and binary forms, with or without -* modification, are permitted provided that the following conditions -* are met: -* - Redistributions of source code must retain the above copyright -* notice, this list of conditions and the following disclaimer. -* - Redistributions in binary form must reproduce the above copyright -* notice, this list of conditions and the following disclaimer in -* the documentation and/or other materials provided with the -* distribution. -* - Neither the name of ARM LIMITED nor the names of its contributors -* may be used to endorse or promote products derived from this -* software without specific prior written permission. -* -* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS -* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE -* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, -* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, -* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; -* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN -* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE -* POSSIBILITY OF SUCH DAMAGE. -* -------------------------------------------------------------------- */ - -#include "arm_math.h" -#include "arm_common_tables.h" -#include - -/** - * @ingroup groupFastMath - */ - -/** - * @defgroup sin Sine - * - * Computes the trigonometric sine function using a combination of table lookup - * and linear interpolation. There are separate functions for - * Q15, Q31, and floating-point data types. - * The input to the floating-point version is in radians while the - * fixed-point Q15 and Q31 have a scaled input with the range - * [0 +0.9999] mapping to [0 2*pi). The fixed-point range is chosen so that a - * value of 2*pi wraps around to 0. - * - * The implementation is based on table lookup using 256 values together with linear interpolation. - * The steps used are: - * -# Calculation of the nearest integer table index - * -# Compute the fractional portion (fract) of the table index. - * -# The final result equals (1.0f-fract)*a + fract*b; - * - * where - * 
- *    b=Table[index+0];
- *    c=Table[index+1];
- *
- */ - -/** - * @addtogroup sin - * @{ - */ - -/** - * @brief Fast approximation to the trigonometric sine function for floating-point data. - * @param[in] x input value in radians. - * @return sin(x). - */ - -float32_t arm_sin_f32( - float32_t x) -{ - float32_t sinVal, fract, in; /* Temporary variables for input, output */ - uint16_t index; /* Index variable */ - float32_t a, b; /* Two nearest output values */ - int32_t n; - float32_t findex; - - /* input x is in radians */ - /* Scale the input to [0 1] range from [0 2*PI] , divide input by 2*pi */ - in = x * 0.159154943092f; - - /* Calculation of floor value of input */ - n = (int32_t) in; - - /* Make negative values towards -infinity */ - if(x < 0.0f) - { - n--; - } - - /* Map input value to [0 1] */ - in = in - (float32_t) n; - - /* Calculation of index of the table */ - findex = (float32_t) FAST_MATH_TABLE_SIZE * in; - if (findex >= 512.0f) { - findex -= 512.0f; - } - - index = ((uint16_t)findex) & 0x1ff; - - /* fractional value calculation */ - fract = findex - (float32_t) index; - - /* Read two nearest values of input value from the sin table */ - a = sinTable_f32[index]; - b = sinTable_f32[index+1]; - - /* Linear interpolation process */ - sinVal = (1.0f-fract)*a + fract*b; - - /* Return the output value */ - return (sinVal); -} - -/** - * @} end of sin group - */ -- cgit