From 2628932a40d769d8d0180ba6fed1e7b9b2718982 Mon Sep 17 00:00:00 2001 From: jaseg Date: Sun, 3 May 2020 19:53:02 +0200 Subject: minkbd: repo restructure --- .../DSP/Source/StatisticsFunctions/arm_var_f32.c | 181 --------------------- 1 file changed, 181 deletions(-) delete mode 100644 Blink/Drivers/CMSIS/DSP/Source/StatisticsFunctions/arm_var_f32.c (limited to 'Blink/Drivers/CMSIS/DSP/Source/StatisticsFunctions/arm_var_f32.c') diff --git a/Blink/Drivers/CMSIS/DSP/Source/StatisticsFunctions/arm_var_f32.c b/Blink/Drivers/CMSIS/DSP/Source/StatisticsFunctions/arm_var_f32.c deleted file mode 100644 index a366f5c..0000000 --- a/Blink/Drivers/CMSIS/DSP/Source/StatisticsFunctions/arm_var_f32.c +++ /dev/null @@ -1,181 +0,0 @@ -/* ---------------------------------------------------------------------- - * Project: CMSIS DSP Library - * Title: arm_var_f32.c - * Description: Variance of the elements of a floating-point vector - * - * $Date: 27. January 2017 - * $Revision: V.1.5.1 - * - * Target Processor: Cortex-M cores - * -------------------------------------------------------------------- */ -/* - * Copyright (C) 2010-2017 ARM Limited or its affiliates. All rights reserved. - * - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the License); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an AS IS BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include "arm_math.h" - -/** - * @ingroup groupStats - */ - -/** - * @defgroup variance Variance - * - * Calculates the variance of the elements in the input vector. - * The underlying algorithm used is the direct method sometimes referred to as the two-pass method: - * - * 
- *   Result = sum(element - meanOfElements)^2) / numElement - 1
- *
- *     where, meanOfElements = ( pSrc[0] * pSrc[0] + pSrc[1] * pSrc[1] + ... + pSrc[blockSize-1] ) / blockSize
- *
- *
- * - * There are separate functions for floating point, Q31, and Q15 data types. - */ - -/** - * @addtogroup variance - * @{ - */ - - -/** - * @brief Variance of the elements of a floating-point vector. - * @param[in] *pSrc points to the input vector - * @param[in] blockSize length of the input vector - * @param[out] *pResult variance value returned here - * @return none. - */ - -void arm_var_f32( - float32_t * pSrc, - uint32_t blockSize, - float32_t * pResult) -{ - float32_t fMean, fValue; - uint32_t blkCnt; /* loop counter */ - float32_t * pInput = pSrc; - float32_t sum = 0.0f; - float32_t fSum = 0.0f; - #if defined(ARM_MATH_DSP) - float32_t in1, in2, in3, in4; - #endif - - if (blockSize <= 1U) - { - *pResult = 0; - return; - } - - #if defined(ARM_MATH_DSP) - /* Run the below code for Cortex-M4 and Cortex-M7 */ - - /*loop Unrolling */ - blkCnt = blockSize >> 2U; - - /* First part of the processing with loop unrolling. Compute 4 outputs at a time. - ** a second loop below computes the remaining 1 to 3 samples. */ - while (blkCnt > 0U) - { - /* C = (A[0] + A[1] + A[2] + ... + A[blockSize-1]) */ - in1 = *pInput++; - in2 = *pInput++; - in3 = *pInput++; - in4 = *pInput++; - - sum += in1; - sum += in2; - sum += in3; - sum += in4; - - /* Decrement the loop counter */ - blkCnt--; - } - - /* If the blockSize is not a multiple of 4, compute any remaining output samples here. - ** No loop unrolling is used. */ - blkCnt = blockSize % 0x4U; - - #else - /* Run the below code for Cortex-M0 or Cortex-M3 */ - - /* Loop over blockSize number of values */ - blkCnt = blockSize; - - #endif - - while (blkCnt > 0U) - { - /* C = (A[0] + A[1] + A[2] + ... + A[blockSize-1]) */ - sum += *pInput++; - - /* Decrement the loop counter */ - blkCnt--; - } - - /* C = (A[0] + A[1] + A[2] + ... + A[blockSize-1]) / blockSize */ - fMean = sum / (float32_t) blockSize; - - pInput = pSrc; - - #if defined(ARM_MATH_DSP) - - /*loop Unrolling */ - blkCnt = blockSize >> 2U; - - /* First part of the processing with loop unrolling. Compute 4 outputs at a time. - ** a second loop below computes the remaining 1 to 3 samples. */ - while (blkCnt > 0U) - { - fValue = *pInput++ - fMean; - fSum += fValue * fValue; - fValue = *pInput++ - fMean; - fSum += fValue * fValue; - fValue = *pInput++ - fMean; - fSum += fValue * fValue; - fValue = *pInput++ - fMean; - fSum += fValue * fValue; - - /* Decrement the loop counter */ - blkCnt--; - } - - blkCnt = blockSize % 0x4U; - #else - /* Run the below code for Cortex-M0 or Cortex-M3 */ - - /* Loop over blockSize number of values */ - blkCnt = blockSize; - #endif - - while (blkCnt > 0U) - { - fValue = *pInput++ - fMean; - fSum += fValue * fValue; - - /* Decrement the loop counter */ - blkCnt--; - } - - /* Variance */ - *pResult = fSum / (float32_t)(blockSize - 1.0f); -} - -/** - * @} end of variance group - */ -- cgit