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diff --git a/fw/hid-dials/Drivers/CMSIS/DSP/Examples/ARM/arm_convolution_example/math_helper.c b/fw/hid-dials/Drivers/CMSIS/DSP/Examples/ARM/arm_convolution_example/math_helper.c
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--- a/fw/hid-dials/Drivers/CMSIS/DSP/Examples/ARM/arm_convolution_example/math_helper.c
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-/* ----------------------------------------------------------------------
-* Copyright (C) 2010-2012 ARM Limited. All rights reserved.
-*
-* $Date: 17. January 2013
-* $Revision: V1.4.0 b
-*
-* Project: CMSIS DSP Library
-*
-* Title: math_helper.c
-*
-* Description: Definition of all helper functions required.
-*
-* 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.
-* -------------------------------------------------------------------- */
-
-/* ----------------------------------------------------------------------
-* Include standard header files
-* -------------------------------------------------------------------- */
-#include<math.h>
-
-/* ----------------------------------------------------------------------
-* Include project header files
-* -------------------------------------------------------------------- */
-#include "math_helper.h"
-
-/**
- * @brief Caluclation of SNR
- * @param[in] pRef Pointer to the reference buffer
- * @param[in] pTest Pointer to the test buffer
- * @param[in] buffSize total number of samples
- * @return SNR
- * The function Caluclates signal to noise ratio for the reference output
- * and test output
- */
-
-float arm_snr_f32(float *pRef, float *pTest, uint32_t buffSize)
-{
- float EnergySignal = 0.0, EnergyError = 0.0;
- uint32_t i;
- float SNR;
- int temp;
- int *test;
-
- for (i = 0; i < buffSize; i++)
- {
- /* Checking for a NAN value in pRef array */
- test = (int *)(&pRef[i]);
- temp = *test;
-
- if (temp == 0x7FC00000)
- {
- return(0);
- }
-
- /* Checking for a NAN value in pTest array */
- test = (int *)(&pTest[i]);
- temp = *test;
-
- if (temp == 0x7FC00000)
- {
- return(0);
- }
- EnergySignal += pRef[i] * pRef[i];
- EnergyError += (pRef[i] - pTest[i]) * (pRef[i] - pTest[i]);
- }
-
- /* Checking for a NAN value in EnergyError */
- test = (int *)(&EnergyError);
- temp = *test;
-
- if (temp == 0x7FC00000)
- {
- return(0);
- }
-
-
- SNR = 10 * log10 (EnergySignal / EnergyError);
-
- return (SNR);
-
-}
-
-
-/**
- * @brief Provide guard bits for Input buffer
- * @param[in,out] input_buf Pointer to input buffer
- * @param[in] blockSize block Size
- * @param[in] guard_bits guard bits
- * @return none
- * The function Provides the guard bits for the buffer
- * to avoid overflow
- */
-
-void arm_provide_guard_bits_q15 (q15_t * input_buf, uint32_t blockSize,
- uint32_t guard_bits)
-{
- uint32_t i;
-
- for (i = 0; i < blockSize; i++)
- {
- input_buf[i] = input_buf[i] >> guard_bits;
- }
-}
-
-/**
- * @brief Converts float to fixed in q12.20 format
- * @param[in] pIn pointer to input buffer
- * @param[out] pOut pointer to outputbuffer
- * @param[in] numSamples number of samples in the input buffer
- * @return none
- * The function converts floating point values to fixed point(q12.20) values
- */
-
-void arm_float_to_q12_20(float *pIn, q31_t * pOut, uint32_t numSamples)
-{
- uint32_t i;
-
- for (i = 0; i < numSamples; i++)
- {
- /* 1048576.0f corresponds to pow(2, 20) */
- pOut[i] = (q31_t) (pIn[i] * 1048576.0f);
-
- pOut[i] += pIn[i] > 0 ? 0.5 : -0.5;
-
- if (pIn[i] == (float) 1.0)
- {
- pOut[i] = 0x000FFFFF;
- }
- }
-}
-
-/**
- * @brief Compare MATLAB Reference Output and ARM Test output
- * @param[in] pIn Pointer to Ref buffer
- * @param[in] pOut Pointer to Test buffer
- * @param[in] numSamples number of samples in the buffer
- * @return maximum difference
- */
-
-uint32_t arm_compare_fixed_q15(q15_t *pIn, q15_t *pOut, uint32_t numSamples)
-{
- uint32_t i;
- int32_t diff, diffCrnt = 0;
- uint32_t maxDiff = 0;
-
- for (i = 0; i < numSamples; i++)
- {
- diff = pIn[i] - pOut[i];
- diffCrnt = (diff > 0) ? diff : -diff;
-
- if (diffCrnt > maxDiff)
- {
- maxDiff = diffCrnt;
- }
- }
-
- return(maxDiff);
-}
-
-/**
- * @brief Compare MATLAB Reference Output and ARM Test output
- * @param[in] pIn Pointer to Ref buffer
- * @param[in] pOut Pointer to Test buffer
- * @param[in] numSamples number of samples in the buffer
- * @return maximum difference
- */
-
-uint32_t arm_compare_fixed_q31(q31_t *pIn, q31_t * pOut, uint32_t numSamples)
-{
- uint32_t i;
- int32_t diff, diffCrnt = 0;
- uint32_t maxDiff = 0;
-
- for (i = 0; i < numSamples; i++)
- {
- diff = pIn[i] - pOut[i];
- diffCrnt = (diff > 0) ? diff : -diff;
-
- if (diffCrnt > maxDiff)
- {
- maxDiff = diffCrnt;
- }
- }
-
- return(maxDiff);
-}
-
-/**
- * @brief Provide guard bits for Input buffer
- * @param[in,out] input_buf Pointer to input buffer
- * @param[in] blockSize block Size
- * @param[in] guard_bits guard bits
- * @return none
- * The function Provides the guard bits for the buffer
- * to avoid overflow
- */
-
-void arm_provide_guard_bits_q31 (q31_t * input_buf,
- uint32_t blockSize,
- uint32_t guard_bits)
-{
- uint32_t i;
-
- for (i = 0; i < blockSize; i++)
- {
- input_buf[i] = input_buf[i] >> guard_bits;
- }
-}
-
-/**
- * @brief Provide guard bits for Input buffer
- * @param[in,out] input_buf Pointer to input buffer
- * @param[in] blockSize block Size
- * @param[in] guard_bits guard bits
- * @return none
- * The function Provides the guard bits for the buffer
- * to avoid overflow
- */
-
-void arm_provide_guard_bits_q7 (q7_t * input_buf,
- uint32_t blockSize,
- uint32_t guard_bits)
-{
- uint32_t i;
-
- for (i = 0; i < blockSize; i++)
- {
- input_buf[i] = input_buf[i] >> guard_bits;
- }
-}
-
-
-
-/**
- * @brief Caluclates number of guard bits
- * @param[in] num_adds number of additions
- * @return guard bits
- * The function Caluclates the number of guard bits
- * depending on the numtaps
- */
-
-uint32_t arm_calc_guard_bits (uint32_t num_adds)
-{
- uint32_t i = 1, j = 0;
-
- if (num_adds == 1)
- {
- return (0);
- }
-
- while (i < num_adds)
- {
- i = i * 2;
- j++;
- }
-
- return (j);
-}
-
-/**
- * @brief Apply guard bits to buffer
- * @param[in,out] pIn pointer to input buffer
- * @param[in] numSamples number of samples in the input buffer
- * @param[in] guard_bits guard bits
- * @return none
- */
-
-void arm_apply_guard_bits (float32_t *pIn,
- uint32_t numSamples,
- uint32_t guard_bits)
-{
- uint32_t i;
-
- for (i = 0; i < numSamples; i++)
- {
- pIn[i] = pIn[i] * arm_calc_2pow(guard_bits);
- }
-}
-
-/**
- * @brief Calculates pow(2, numShifts)
- * @param[in] numShifts number of shifts
- * @return pow(2, numShifts)
- */
-uint32_t arm_calc_2pow(uint32_t numShifts)
-{
-
- uint32_t i, val = 1;
-
- for (i = 0; i < numShifts; i++)
- {
- val = val * 2;
- }
-
- return(val);
-}
-
-
-
-/**
- * @brief Converts float to fixed q14
- * @param[in] pIn pointer to input buffer
- * @param[out] pOut pointer to output buffer
- * @param[in] numSamples number of samples in the buffer
- * @return none
- * The function converts floating point values to fixed point values
- */
-
-void arm_float_to_q14 (float *pIn, q15_t *pOut, uint32_t numSamples)
-{
- uint32_t i;
-
- for (i = 0; i < numSamples; i++)
- {
- /* 16384.0f corresponds to pow(2, 14) */
- pOut[i] = (q15_t) (pIn[i] * 16384.0f);
-
- pOut[i] += pIn[i] > 0 ? 0.5 : -0.5;
-
- if (pIn[i] == (float) 2.0)
- {
- pOut[i] = 0x7FFF;
- }
-
- }
-
-}
-
-
-/**
- * @brief Converts float to fixed q30 format
- * @param[in] pIn pointer to input buffer
- * @param[out] pOut pointer to output buffer
- * @param[in] numSamples number of samples in the buffer
- * @return none
- * The function converts floating point values to fixed point values
- */
-
-void arm_float_to_q30 (float *pIn, q31_t * pOut, uint32_t numSamples)
-{
- uint32_t i;
-
- for (i = 0; i < numSamples; i++)
- {
- /* 1073741824.0f corresponds to pow(2, 30) */
- pOut[i] = (q31_t) (pIn[i] * 1073741824.0f);
-
- pOut[i] += pIn[i] > 0 ? 0.5 : -0.5;
-
- if (pIn[i] == (float) 2.0)
- {
- pOut[i] = 0x7FFFFFFF;
- }
- }
-}
-
-/**
- * @brief Converts float to fixed q30 format
- * @param[in] pIn pointer to input buffer
- * @param[out] pOut pointer to output buffer
- * @param[in] numSamples number of samples in the buffer
- * @return none
- * The function converts floating point values to fixed point values
- */
-
-void arm_float_to_q29 (float *pIn, q31_t *pOut, uint32_t numSamples)
-{
- uint32_t i;
-
- for (i = 0; i < numSamples; i++)
- {
- /* 1073741824.0f corresponds to pow(2, 30) */
- pOut[i] = (q31_t) (pIn[i] * 536870912.0f);
-
- pOut[i] += pIn[i] > 0 ? 0.5 : -0.5;
-
- if (pIn[i] == (float) 4.0)
- {
- pOut[i] = 0x7FFFFFFF;
- }
- }
-}
-
-
-/**
- * @brief Converts float to fixed q28 format
- * @param[in] pIn pointer to input buffer
- * @param[out] pOut pointer to output buffer
- * @param[in] numSamples number of samples in the buffer
- * @return none
- * The function converts floating point values to fixed point values
- */
-
-void arm_float_to_q28 (float *pIn, q31_t *pOut, uint32_t numSamples)
-{
- uint32_t i;
-
- for (i = 0; i < numSamples; i++)
- {
- /* 268435456.0f corresponds to pow(2, 28) */
- pOut[i] = (q31_t) (pIn[i] * 268435456.0f);
-
- pOut[i] += pIn[i] > 0 ? 0.5 : -0.5;
-
- if (pIn[i] == (float) 8.0)
- {
- pOut[i] = 0x7FFFFFFF;
- }
- }
-}
-
-/**
- * @brief Clip the float values to +/- 1
- * @param[in,out] pIn input buffer
- * @param[in] numSamples number of samples in the buffer
- * @return none
- * The function converts floating point values to fixed point values
- */
-
-void arm_clip_f32 (float *pIn, uint32_t numSamples)
-{
- uint32_t i;
-
- for (i = 0; i < numSamples; i++)
- {
- if (pIn[i] > 1.0f)
- {
- pIn[i] = 1.0;
- }
- else if ( pIn[i] < -1.0f)
- {
- pIn[i] = -1.0;
- }
-
- }
-}
-
-
-
-
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