From 94f94260ace13688285fc8c62687079b26c18854 Mon Sep 17 00:00:00 2001 From: jaseg Date: Sun, 20 Dec 2020 15:18:02 +0100 Subject: Submodule-cache WIP --- .../arm_variance_example_f32.c | 204 --------------------- 1 file changed, 204 deletions(-) delete mode 100644 fw/midi-dials/Drivers/CMSIS/DSP/Examples/ARM/arm_variance_example/arm_variance_example_f32.c (limited to 'fw/midi-dials/Drivers/CMSIS/DSP/Examples/ARM/arm_variance_example') diff --git a/fw/midi-dials/Drivers/CMSIS/DSP/Examples/ARM/arm_variance_example/arm_variance_example_f32.c b/fw/midi-dials/Drivers/CMSIS/DSP/Examples/ARM/arm_variance_example/arm_variance_example_f32.c deleted file mode 100644 index 78a0681..0000000 --- a/fw/midi-dials/Drivers/CMSIS/DSP/Examples/ARM/arm_variance_example/arm_variance_example_f32.c +++ /dev/null @@ -1,204 +0,0 @@ -/* ---------------------------------------------------------------------- -* Copyright (C) 2010-2012 ARM Limited. All rights reserved. -* -* $Date: 17. January 2013 -* $Revision: V1.4.0 -* -* Project: CMSIS DSP Library -* Title: arm_variance_example_f32.c -* -* Description: Example code demonstrating variance calculation of input sequence. -* -* Target Processor: Cortex-M4/Cortex-M3 -* -* 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. -* -------------------------------------------------------------------- */ - -/** - * @ingroup groupExamples - */ - -/** - * @defgroup VarianceExample Variance Example - * - * \par Description: - * \par - * Demonstrates the use of Basic Math and Support Functions to calculate the variance of an - * input sequence with N samples. Uniformly distributed white noise is taken as input. - * - * \par Algorithm: - * \par - * The variance of a sequence is the mean of the squared deviation of the sequence from its mean. - * \par - * This is denoted by the following equation: - * 
 variance = ((x[0] - x') * (x[0] - x') + (x[1] - x') * (x[1] - x') + ... + * (x[n-1] - x') * (x[n-1] - x')) / (N-1)
- * where, x[n] is the input sequence, N is the number of input samples, and - * x' is the mean value of the input sequence, x[n]. - * \par - * The mean value x' is defined as: - * 
 x' = (x[0] + x[1] + ... + x[n-1]) / N
- * - * \par Block Diagram: - * \par - * \image html Variance.gif - * - * - * \par Variables Description: - * \par - * \li \c testInput_f32 points to the input data - * \li \c wire1, \c wir2, \c wire3 temporary buffers - * \li \c blockSize number of samples processed at a time - * \li \c refVarianceOut reference variance value - * - * \par CMSIS DSP Software Library Functions Used: - * \par - * - arm_dot_prod_f32() - * - arm_mult_f32() - * - arm_sub_f32() - * - arm_fill_f32() - * - arm_copy_f32() - * - * Refer - * \link arm_variance_example_f32.c \endlink - * - */ - - -/** \example arm_variance_example_f32.c - */ -#include -#include "arm_math.h" - -/* ---------------------------------------------------------------------- -* Defines each of the tests performed -* ------------------------------------------------------------------- */ -#define MAX_BLOCKSIZE 32 -#define DELTA (0.000001f) - - -/* ---------------------------------------------------------------------- -* Declare I/O buffers -* ------------------------------------------------------------------- */ -float32_t wire1[MAX_BLOCKSIZE]; -float32_t wire2[MAX_BLOCKSIZE]; -float32_t wire3[MAX_BLOCKSIZE]; - -/* ---------------------------------------------------------------------- -* Test input data for Floating point Variance example for 32-blockSize -* Generated by the MATLAB randn() function -* ------------------------------------------------------------------- */ - -float32_t testInput_f32[32] = -{ - -0.432564811528221, -1.665584378238097, 0.125332306474831, 0.287676420358549, - -1.146471350681464, 1.190915465642999, 1.189164201652103, -0.037633276593318, - 0.327292361408654, 0.174639142820925, -0.186708577681439, 0.725790548293303, - -0.588316543014189, 2.183185818197101, -0.136395883086596, 0.113931313520810, - 1.066768211359189, 0.059281460523605, -0.095648405483669, -0.832349463650022, - 0.294410816392640, -1.336181857937804, 0.714324551818952, 1.623562064446271, - -0.691775701702287, 0.857996672828263, 1.254001421602532, -1.593729576447477, - -1.440964431901020, 0.571147623658178, -0.399885577715363, 0.689997375464345 - -}; - -/* ---------------------------------------------------------------------- -* Declare Global variables -* ------------------------------------------------------------------- */ -uint32_t blockSize = 32; -float32_t refVarianceOut = 0.903941793931839; - -/* ---------------------------------------------------------------------- -* Variance calculation test -* ------------------------------------------------------------------- */ - -int32_t main(void) -{ - arm_status status; - float32_t mean, oneByBlockSize; - float32_t variance; - float32_t diff; - - status = ARM_MATH_SUCCESS; - - /* Calculation of mean value of input */ - - /* x' = 1/blockSize * (x(0)* 1 + x(1) * 1 + ... + x(n-1) * 1) */ - - /* Fill wire1 buffer with 1.0 value */ - arm_fill_f32(1.0, wire1, blockSize); - - /* Calculate the dot product of wire1 and wire2 */ - /* (x(0)* 1 + x(1) * 1 + ...+ x(n-1) * 1) */ - arm_dot_prod_f32(testInput_f32, wire1, blockSize, &mean); - - /* Calculation of 1/blockSize */ - oneByBlockSize = 1.0 / (blockSize); - - /* 1/blockSize * (x(0)* 1 + x(1) * 1 + ... + x(n-1) * 1) */ - arm_mult_f32(&mean, &oneByBlockSize, &mean, 1); - - - /* Calculation of variance value of input */ - - /* (1/blockSize) * (x(0) - x') * (x(0) - x') + (x(1) - x') * (x(1) - x') + ... + (x(n-1) - x') * (x(n-1) - x') */ - - /* Fill wire2 with mean value x' */ - arm_fill_f32(mean, wire2, blockSize); - - /* wire3 contains (x-x') */ - arm_sub_f32(testInput_f32, wire2, wire3, blockSize); - - /* wire2 contains (x-x') */ - arm_copy_f32(wire3, wire2, blockSize); - - /* (x(0) - x') * (x(0) - x') + (x(1) - x') * (x(1) - x') + ... + (x(n-1) - x') * (x(n-1) - x') */ - arm_dot_prod_f32(wire2, wire3, blockSize, &variance); - - /* Calculation of 1/blockSize */ - oneByBlockSize = 1.0 / (blockSize - 1); - - /* Calculation of variance */ - arm_mult_f32(&variance, &oneByBlockSize, &variance, 1); - - /* absolute value of difference between ref and test */ - diff = fabsf(refVarianceOut - variance); - - /* Comparison of variance value with reference */ - if (diff > DELTA) - { - status = ARM_MATH_TEST_FAILURE; - } - - if ( status != ARM_MATH_SUCCESS) - { - while (1); - } - - while (1); /* main function does not return */ -} - - /** \endlink */ -- cgit