From 94f94260ace13688285fc8c62687079b26c18854 Mon Sep 17 00:00:00 2001 From: jaseg Date: Sun, 20 Dec 2020 15:18:02 +0100 Subject: Submodule-cache WIP --- .../FilteringFunctions/arm_lms_norm_init_f32.c | 93 ---------------------- 1 file changed, 93 deletions(-) delete mode 100644 fw/midi-dials/Drivers/CMSIS/DSP/Source/FilteringFunctions/arm_lms_norm_init_f32.c (limited to 'fw/midi-dials/Drivers/CMSIS/DSP/Source/FilteringFunctions/arm_lms_norm_init_f32.c') diff --git a/fw/midi-dials/Drivers/CMSIS/DSP/Source/FilteringFunctions/arm_lms_norm_init_f32.c b/fw/midi-dials/Drivers/CMSIS/DSP/Source/FilteringFunctions/arm_lms_norm_init_f32.c deleted file mode 100644 index 49272f8..0000000 --- a/fw/midi-dials/Drivers/CMSIS/DSP/Source/FilteringFunctions/arm_lms_norm_init_f32.c +++ /dev/null @@ -1,93 +0,0 @@ -/* ---------------------------------------------------------------------- - * Project: CMSIS DSP Library - * Title: arm_lms_norm_init_f32.c - * Description: Floating-point NLMS filter initialization function - * - * $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 groupFilters - */ - -/** - * @addtogroup LMS_NORM - * @{ - */ - - /** - * @brief Initialization function for floating-point normalized LMS filter. - * @param[in] *S points to an instance of the floating-point LMS filter structure. - * @param[in] numTaps number of filter coefficients. - * @param[in] *pCoeffs points to coefficient buffer. - * @param[in] *pState points to state buffer. - * @param[in] mu step size that controls filter coefficient updates. - * @param[in] blockSize number of samples to process. - * @return none. - * - * \par Description: - * pCoeffs points to the array of filter coefficients stored in time reversed order: - *
- *    {b[numTaps-1], b[numTaps-2], b[N-2], ..., b[1], b[0]}
- * 
- * The initial filter coefficients serve as a starting point for the adaptive filter. - * pState points to an array of length numTaps+blockSize-1 samples, - * where blockSize is the number of input samples processed by each call to arm_lms_norm_f32(). - */ - -void arm_lms_norm_init_f32( - arm_lms_norm_instance_f32 * S, - uint16_t numTaps, - float32_t * pCoeffs, - float32_t * pState, - float32_t mu, - uint32_t blockSize) -{ - /* Assign filter taps */ - S->numTaps = numTaps; - - /* Assign coefficient pointer */ - S->pCoeffs = pCoeffs; - - /* Clear state buffer and size is always blockSize + numTaps - 1 */ - memset(pState, 0, (numTaps + (blockSize - 1U)) * sizeof(float32_t)); - - /* Assign state pointer */ - S->pState = pState; - - /* Assign Step size value */ - S->mu = mu; - - /* Initialise Energy to zero */ - S->energy = 0.0f; - - /* Initialise x0 to zero */ - S->x0 = 0.0f; - -} - -/** - * @} end of LMS_NORM group - */ -- cgit