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Diffstat (limited to 'DSP_Lib/Source/FilteringFunctions/arm_fir_sparse_init_q31.c')
| -rw-r--r-- | DSP_Lib/Source/FilteringFunctions/arm_fir_sparse_init_q31.c | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/DSP_Lib/Source/FilteringFunctions/arm_fir_sparse_init_q31.c b/DSP_Lib/Source/FilteringFunctions/arm_fir_sparse_init_q31.c deleted file mode 100644 index 8250550..0000000 --- a/DSP_Lib/Source/FilteringFunctions/arm_fir_sparse_init_q31.c +++ /dev/null @@ -1,106 +0,0 @@ -/* ---------------------------------------------------------------------- -* Copyright (C) 2010-2014 ARM Limited. All rights reserved. -* -* $Date: 19. March 2015 -* $Revision: V.1.4.5 -* -* Project: CMSIS DSP Library -* Title: arm_fir_sparse_init_q31.c -* -* Description: Q31 sparse FIR filter initialization function. -* -* 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" - -/** - * @ingroup groupFilters - */ - -/** - * @addtogroup FIR_Sparse - * @{ - */ - -/** - * @brief Initialization function for the Q31 sparse FIR filter. - * @param[in,out] *S points to an instance of the Q31 sparse FIR structure. - * @param[in] numTaps number of nonzero coefficients in the filter. - * @param[in] *pCoeffs points to the array of filter coefficients. - * @param[in] *pState points to the state buffer. - * @param[in] *pTapDelay points to the array of offset times. - * @param[in] maxDelay maximum offset time supported. - * @param[in] blockSize number of samples that will be processed per block. - * @return none - * - * <b>Description:</b> - * \par - * <code>pCoeffs</code> holds the filter coefficients and has length <code>numTaps</code>. - * <code>pState</code> holds the filter's state variables and must be of length - * <code>maxDelay + blockSize</code>, where <code>maxDelay</code> - * is the maximum number of delay line values. - * <code>blockSize</code> is the number of words processed by <code>arm_fir_sparse_q31()</code> function. - */ - -void arm_fir_sparse_init_q31( - arm_fir_sparse_instance_q31 * S, - uint16_t numTaps, - q31_t * pCoeffs, - q31_t * pState, - int32_t * pTapDelay, - uint16_t maxDelay, - uint32_t blockSize) -{ - /* Assign filter taps */ - S->numTaps = numTaps; - - /* Assign coefficient pointer */ - S->pCoeffs = pCoeffs; - - /* Assign TapDelay pointer */ - S->pTapDelay = pTapDelay; - - /* Assign MaxDelay */ - S->maxDelay = maxDelay; - - /* reset the stateIndex to 0 */ - S->stateIndex = 0u; - - /* Clear state buffer and size is always maxDelay + blockSize */ - memset(pState, 0, (maxDelay + blockSize) * sizeof(q31_t)); - - /* Assign state pointer */ - S->pState = pState; - -} - -/** - * @} end of FIR_Sparse group - */ |