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Diffstat (limited to 'DSP_Lib/Source/FilteringFunctions/arm_iir_lattice_init_q15.c')
-rw-r--r-- | DSP_Lib/Source/FilteringFunctions/arm_iir_lattice_init_q15.c | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/DSP_Lib/Source/FilteringFunctions/arm_iir_lattice_init_q15.c b/DSP_Lib/Source/FilteringFunctions/arm_iir_lattice_init_q15.c deleted file mode 100644 index bc5c0af..0000000 --- a/DSP_Lib/Source/FilteringFunctions/arm_iir_lattice_init_q15.c +++ /dev/null @@ -1,91 +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_iir_lattice_init_q15.c -* -* Description: Q15 IIR lattice 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 IIR_Lattice - * @{ - */ - - /** - * @brief Initialization function for the Q15 IIR lattice filter. - * @param[in] *S points to an instance of the Q15 IIR lattice structure. - * @param[in] numStages number of stages in the filter. - * @param[in] *pkCoeffs points to reflection coefficient buffer. The array is of length numStages. - * @param[in] *pvCoeffs points to ladder coefficient buffer. The array is of length numStages+1. - * @param[in] *pState points to state buffer. The array is of length numStages+blockSize. - * @param[in] blockSize number of samples to process per call. - * @return none. - */ - -void arm_iir_lattice_init_q15( - arm_iir_lattice_instance_q15 * S, - uint16_t numStages, - q15_t * pkCoeffs, - q15_t * pvCoeffs, - q15_t * pState, - uint32_t blockSize) -{ - /* Assign filter taps */ - S->numStages = numStages; - - /* Assign reflection coefficient pointer */ - S->pkCoeffs = pkCoeffs; - - /* Assign ladder coefficient pointer */ - S->pvCoeffs = pvCoeffs; - - /* Clear state buffer and size is always blockSize + numStages */ - memset(pState, 0, (numStages + blockSize) * sizeof(q15_t)); - - /* Assign state pointer */ - S->pState = pState; - - -} - -/** - * @} end of IIR_Lattice group - */ |