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Diffstat (limited to 'Blink/Drivers/CMSIS/DSP/Examples/ARM/arm_graphic_equalizer_example')
-rw-r--r--Blink/Drivers/CMSIS/DSP/Examples/ARM/arm_graphic_equalizer_example/arm_graphic_equalizer_data.c134
-rw-r--r--Blink/Drivers/CMSIS/DSP/Examples/ARM/arm_graphic_equalizer_example/arm_graphic_equalizer_example_q31.c411
-rw-r--r--Blink/Drivers/CMSIS/DSP/Examples/ARM/arm_graphic_equalizer_example/math_helper.c466
-rw-r--r--Blink/Drivers/CMSIS/DSP/Examples/ARM/arm_graphic_equalizer_example/math_helper.h63
4 files changed, 0 insertions, 1074 deletions
diff --git a/Blink/Drivers/CMSIS/DSP/Examples/ARM/arm_graphic_equalizer_example/arm_graphic_equalizer_data.c b/Blink/Drivers/CMSIS/DSP/Examples/ARM/arm_graphic_equalizer_example/arm_graphic_equalizer_data.c
deleted file mode 100644
index b6ab8c9..0000000
--- a/Blink/Drivers/CMSIS/DSP/Examples/ARM/arm_graphic_equalizer_example/arm_graphic_equalizer_data.c
+++ /dev/null
@@ -1,134 +0,0 @@
-/* ----------------------------------------------------------------------
-* Copyright (C) 2010-2012 ARM Limited. All rights reserved.
-*
-* $Date: 17. January 2013
-* $Revision: V1.4.0
-*
-* Project: CMSIS DSP Library
-* Title: arm_graphic_equalizer_data.c
-*
-* Description: Data file used for example code
-*
-* 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"
-
-float32_t testRefOutput_f32[320] = {
-
-0.000000000000000000, 0.001898396760225296, 0.004215449094772339, 0.007432077080011368, 0.010948467999696732, 0.015026375651359558, 0.019191544502973557, 0.023574527353048325,
-0.027919445186853409, 0.032277785241603851, 0.036551639437675476, 0.040732793509960175, 0.044799156486988068, 0.048710610717535019, 0.052476800978183746, 0.056059073656797409,
-0.059482168406248093, 0.062726479023694992, 0.065821025520563126, 0.068763464689254761, 0.071577839553356171, 0.074270240962505341, 0.076856281608343124, 0.079344697296619415,
-0.081745062023401260, 0.084067162126302719, 0.086318407207727432, 0.088509257882833481, 0.090647127479314804, 0.092742368578910828, 0.094802625477313995, 0.096837285906076431,
-0.098853722214698792, 0.100859899073839190, 0.102862443774938580, 0.104867763817310330, 0.106881409883499150, 0.108908228576183320, 0.110952425748109820, 0.113017357885837550,
-0.115105822682380680, 0.117219865322113040, 0.119361080229282380, 0.121530555188655850, 0.123729091137647630, 0.125957202166318890, 0.128215309232473370, 0.130503740161657330,
-0.132822841405868530, 0.135173004120588300, 0.137554679065942760, 0.139968376606702800, 0.142414685338735580, 0.144894234836101530, 0.147407654672861100, 0.149955596774816510,
-0.152538605034351350, 0.155157200992107390, 0.157811731100082400, 0.160502441227436070, 0.163229387253522870, 0.165992442518472670, 0.168791320174932480, 0.171625509858131410,
-0.174494370818138120, 0.177397061139345170, 0.180332608520984650, 0.183299910277128220, 0.186297744512557980, 0.189324837177991870, 0.192379791289567950, 0.195461250841617580,
-0.198567759245634080, 0.201697919517755510, 0.204850304871797560, 0.208023533225059510, 0.211216274648904800, 0.214427210390567780, 0.217655111104249950, 0.220898788422346120,
-0.224157124757766720, 0.227429077029228210, 0.230713658034801480, 0.234009962528944020, 0.237317133694887160, 0.240634419023990630, 0.243961080908775330, 0.247296508401632310,
-0.250640105456113820, 0.253991369158029560, 0.257349837571382520, 0.260715119540691380, 0.264086868613958360, 0.267464816570281980, 0.270848698914051060, 0.274238351732492450,
-0.277633611112833020, 0.281034380197525020, 0.284440591931343080, 0.287852220237255100, 0.291269283741712570, 0.294691801071166990, 0.298119872808456420, 0.301553562283515930,
-0.304993014782667160, 0.308438356965780260, 0.311889752745628360, 0.315347377210855480, 0.318811416625976560, 0.322282072156667710, 0.325759567320346830, 0.329244095832109450,
-0.332735907286405560, 0.336235217750072480, 0.339742250740528110, 0.343257248401641850, 0.346780419349670410, 0.350311983376741410, 0.353852160274982450, 0.357401121407747270,
-0.360959105193614960, 0.364526227116584780, 0.368102725595235820, 0.371688675135374070, 0.375284302979707720, 0.378889638930559160, 0.382504884153604510, 0.386130042374134060,
-0.389765247702598570, 0.393410529941320420, 0.397065933793783190, 0.400731507688760760, 0.404407206922769550, 0.408093083649873730, 0.411789052188396450, 0.415495119988918300,
-0.419211201369762420, 0.422937240451574330, 0.426673140376806260, 0.430418811738491060, 0.434174135327339170, 0.437938995659351350, 0.441713258624076840, 0.445496778935194020,
-0.449289388954639430, 0.453090950846672060, 0.456901267170906070, 0.460720170289278030, 0.464547459036111830, 0.468382950872182850, 0.472226426005363460, 0.476077698171138760,
-0.479936532676219940, 0.483802750706672670, 0.487676106393337250, 0.491556398570537570, 0.495443399995565410, 0.499336875975131990, 0.503236617892980580, 0.507142387330532070,
-0.511053957045078280, 0.514971107244491580, 0.518893606960773470, 0.522821225225925450, 0.526753749698400500, 0.530690938234329220, 0.534632585942745210, 0.538578454405069350,
-0.542528338730335240, 0.546481993049383160, 0.550439231097698210, 0.554399792104959490, 0.558363504707813260, 0.562330115586519240, 0.566299438476562500, 0.570271246135234830,
-0.574245333671569820, 0.578221492469310760, 0.582199502736330030, 0.586179181933403020, 0.590160276740789410, 0.594142623245716090, 0.598125983029603960, 0.602110169827938080,
-0.606094967573881150, 0.610080175101757050, 0.614065583795309070, 0.618050977587699890, 0.622036151587963100, 0.626020893454551700, 0.630004994571208950, 0.633988231420516970,
-0.637970402836799620, 0.641951277852058410, 0.645930647850036620, 0.649908289313316350, 0.653883971273899080, 0.657857488840818410, 0.661828581243753430, 0.665797054767608640,
-0.669762641191482540, 0.673725124448537830, 0.677684243768453600, 0.681639779359102250, 0.685591462999582290, 0.689539063721895220, 0.693482317030429840, 0.697420965880155560,
-0.701354760676622390, 0.705283410847187040, 0.709206689149141310, 0.713124278932809830, 0.717035952955484390, 0.720941375941038130, 0.724840316921472550, 0.728732451796531680,
-0.732617516070604320, 0.736495196819305420, 0.740365199744701390, 0.744227230548858640, 0.748080968856811520, 0.751926124095916750, 0.755762357264757160, 0.759589381515979770,
-0.763406842947006230, 0.767214450985193250, 0.771011855453252790, 0.774798732250928880, 0.778574761003255840, 0.782339565455913540, 0.786092851310968400, 0.789834223687648770,
-0.793563373386859890, 0.797279909253120420, 0.800983514636754990, 0.804673787206411360, 0.808350402861833570, 0.812012966722249980, 0.815661124885082240, 0.819294504821300510,
-0.822912722826004030, 0.826515413820743560, 0.830102190375328060, 0.833672653883695600, 0.837226435542106630, 0.840763118118047710, 0.844282336533069610, 0.847783654928207400,
-0.851266715675592420, 0.854731071740388870, 0.858176350593566890, 0.861602116376161580, 0.865007970482110980, 0.868393491953611370, 0.871758259832859040, 0.875101849436759950,
-0.878423850983381270, 0.881723806262016300, 0.885001312941312790, 0.888255912810564040, 0.891487173736095430, 0.894694659858942030, 0.897877920418977740, 0.901036512106657030,
-0.904169965535402300, 0.907277844846248630, 0.910359673202037810, 0.913415014743804930, 0.916443370282649990, 0.919444311410188670, 0.922417331486940380, 0.925361987203359600,
-0.928277771919965740, 0.931164238601922990, 0.934020876884460450, 0.936847217381000520, 0.939642757177352910, 0.942407000809907910, 0.945139460265636440, 0.947839632630348210,
-0.950507018715143200, 0.953141096979379650, 0.955741371959447860, 0.958307322114706040, 0.960838429629802700, 0.963334184139966960, 0.965794049203395840, 0.968217510730028150,
-0.970604017376899720, 0.972953058779239650, 0.975264083594083790, 0.977536566555500030, 0.979769956320524220, 0.981963708996772770, 0.984117280691862110, 0.986230112612247470,
-0.988301653414964680, 0.990331344306468960, 0.992318630218505860, 0.994262944906950000, 0.996163722127676010, 0.998020399361848830, 0.999832402914762500, 1.001599155366420700,
-1.003320086747407900, 1.004994612187147100, 1.006622135639190700, 1.008202098309993700, 1.009733878076076500, 1.011216927319765100, 1.012650609016418500, 1.014034371823072400,
-1.015367589890956900, 1.016649682074785200, 1.017880033701658200, 1.019058048725128200, 1.020183108747005500, 1.021254621446132700, 1.022271949797868700, 1.023234523832798000,
-
-};
-/* ----------------------------------------------------------------------
-** Test input - logarithmic chirp signal
-** ------------------------------------------------------------------- */
-
-float32_t testInput_f32[320] =
- {
- 0.000000000000000061, 0.002622410992047861, 0.005253663973466970, 0.007893770384930297, 0.010542741395035495, 0.013200587895525877, 0.015867320496454066, 0.018542949521290073,
-0.021227485001971542, 0.023920936673895138, 0.026623313970853074, 0.029334626019908643, 0.032054881636210709, 0.034784089317753723, 0.037522257240071598, 0.040269393250875855,
-0.043025504864628375, 0.045790599257054837, 0.048564683259595690, 0.051347763353792118, 0.054139845665610427, 0.056940935959702531, 0.059751039633601337, 0.062570161711849828,
-0.065398306840066575, 0.068235479278943648, 0.071081682898178900, 0.073936921170339814, 0.076801197164660218, 0.079674513540768196, 0.082556872542344922, 0.085448275990715375,
-0.088348725278367082, 0.091258221362398390, 0.094176764757897533, 0.097104355531246703, 0.100040993293358240, 0.102986677192832010, 0.105941405909045980, 0.108905177645166230,
-0.111877990121087980, 0.114859840566297130, 0.117850725712659680, 0.120850641787131110, 0.123859584504392860, 0.126877549059407400, 0.129904530119898690, 0.132940521818751430,
-0.135985517746334080, 0.139039510942737950, 0.142102493889940090, 0.145174458503884160, 0.148255396126476810, 0.151345297517508140, 0.154444152846483080, 0.157551951684374300,
-0.160668682995289720, 0.163794335128054890, 0.166928895807713030, 0.170072352126936720, 0.173224690537355760, 0.176385896840798810, 0.179555956180445340, 0.182734853031894270,
-0.185922571194139130, 0.189119093780459800, 0.192324403209221870, 0.195538481194587030, 0.198761308737133020, 0.201992866114384050, 0.205233132871247170, 0.208482087810360570,
-0.211739708982344370, 0.215005973675965020, 0.218280858408200220, 0.221564338914212730, 0.224856390137231970, 0.228156986218334190, 0.231466100486134670, 0.234783705446379690,
-0.238109772771442410, 0.241444273289723230, 0.244787176974952890, 0.248138452935395580, 0.251498069402956710, 0.254865993722190930, 0.258242192339209860, 0.261626630790492030,
-0.265019273691591620, 0.268420084725748410, 0.271829026632395280, 0.275246061195565440, 0.278671149232197430, 0.282104250580339830, 0.285545324087251580, 0.288994327597401960,
-0.292451217940364990, 0.295915950918612280, 0.299388481295203350, 0.302868762781368150, 0.306356748023990040, 0.309852388592980640, 0.313355634968552230, 0.316866436528383590,
-0.320384741534681720, 0.323910497121136620, 0.327443649279772870, 0.330984142847692230, 0.334531921493712690, 0.338086927704900790, 0.341649102772995210, 0.345218386780727190,
-0.348794718588032520, 0.352378035818156910, 0.355968274843654950, 0.359565370772282730, 0.363169257432780890, 0.366779867360555120, 0.370397131783246010, 0.374020980606193880,
-0.377651342397795690, 0.381288144374756830, 0.384931312387234990, 0.388580770903877330, 0.392236442996751310, 0.395898250326170650, 0.399566113125414350, 0.403239950185338420,
-0.406919678838884410, 0.410605214945482130, 0.414296472875345100, 0.417993365493664670, 0.421695804144698540, 0.425403698635752780, 0.429116957221065130, 0.432835486585582130,
-0.436559191828633180, 0.440287976447505720, 0.444021742320914510, 0.447760389692375140, 0.451503817153472210, 0.455251921627031540, 0.459004598350192470, 0.462761740857380200,
-0.466523240963184150, 0.470288988745136360, 0.474058872526396560, 0.477832778858340690, 0.481610592503056990, 0.485392196415748600, 0.489177471727042850, 0.492966297725213780,
-0.496758551838309250, 0.500554109616195060, 0.504352844712508190, 0.508154628866524960, 0.511959331884944910, 0.515766821623591440, 0.519576963969030530, 0.523389622820107150,
-0.527204660069405030, 0.531021935584629400, 0.534841307189911630, 0.538662630647041900, 0.542485759636628150, 0.546310545739186690, 0.550136838416161340, 0.553964484990880020,
-0.557793330629441700, 0.561623218321546380, 0.565453988861259300, 0.569285480827721570, 0.573117530565801950, 0.576949972166696630, 0.580782637448476910, 0.584615355936589420,
-0.588447954844309340, 0.592280259053150400, 0.596112091093235260, 0.599943271123626440, 0.603773616912622660, 0.607602943818024150, 0.611431064767369080, 0.615257790238142090,
-0.619082928237961740, 0.622906284284749700, 0.626727661386881850, 0.630546860023327600, 0.634363678123782030, 0.638177911048790960, 0.641989351569874020, 0.645797789849653410,
-0.649603013421986450, 0.653404807172108140, 0.657202953316791350, 0.660997231384523490, 0.664787418195706640, 0.668573287842887610, 0.672354611671016960, 0.676131158257749170,
-0.679902693393781730, 0.683668980063242500, 0.687429778424128110, 0.691184845788802130, 0.694933936604551380, 0.698676802434213370, 0.702413191936877570, 0.706142850848662460,
-0.709865521963579990, 0.713580945114492330, 0.717288857154159800, 0.720988991936399870, 0.724681080297347790, 0.728364850036839040, 0.732040025899910680, 0.735706329558433620,
-0.739363479592880620, 0.743011191474238440, 0.746649177546067850, 0.750277147006723990, 0.753894805891742180, 0.757501857056394940, 0.761098000158428880, 0.764682931640995540,
-0.768256344715771980, 0.771817929346292900, 0.775367372231492210, 0.778904356789468790, 0.782428563141483460, 0.785939668096195860, 0.789437345134148760, 0.792921264392515420,
-0.796391092650110770, 0.799846493312681210, 0.803287126398485760, 0.806712648524170680, 0.810122712890953390, 0.813516969271127150, 0.816895063994893090, 0.820256639937531280,
-0.823601336506926020, 0.826928789631450890, 0.830238631748229430, 0.833530491791779850, 0.836803995183058700, 0.840058763818912760, 0.843294416061954100, 0.846510566730867220,
-0.849706827091166740, 0.852882804846411770, 0.856038104129895340, 0.859172325496819990, 0.862285065916973510, 0.865375918767918860, 0.868444473828712590, 0.871490317274166260,
-0.874513031669661770, 0.877512195966544280, 0.880487385498096800, 0.883438171976119850, 0.886364123488128100, 0.889264804495180530, 0.892139775830360640, 0.894988594697921020,
-0.897810814673113080, 0.900605985702712770, 0.903373654106265470, 0.906113362578062300, 0.908824650189867690, 0.911507052394417540, 0.914160101029702910, 0.916783324324059180,
-0.919376246902079860, 0.921938389791372770, 0.924469270430179120, 0.926968402675872660, 0.929435296814361430, 0.931869459570409790, 0.934270394118903560, 0.936637600097074200,
-0.938970573617708970, 0.941268807283364040, 0.943531790201601380, 0.945759008001275100, 0.947949942849885320, 0.950104073472023970, 0.952220875168933280, 0.954299819839202090,
-0.956340376000621160, 0.958342008813221960, 0.960304180103520260, 0.962226348389994210, 0.964107968909812760, 0.965948493646846980, 0.967747371360983650, 0.969504047618768740,
-0.971217964825405680, 0.972888562258134030, 0.974515276101013520, 0.976097539481141750, 0.977634782506330400, 0.979126432304266880, 0.980571913063189360, 0.981970646074102120,
-0.983322049774557390, 0.984625539794035220, 0.985880529000944810, 0.987086427551279730, 0.988242642938953360, 0.989348580047844540, 0.990403641205582440, 0.991407226239099710,
-0.992358732531984260, 0.993257555083659870, 0.994103086570423680, 0.994894717408374870, 0.995631835818261310, 0.996313827892278070, 0.996940077662846650, 0.997509967173408010,
-
- };
diff --git a/Blink/Drivers/CMSIS/DSP/Examples/ARM/arm_graphic_equalizer_example/arm_graphic_equalizer_example_q31.c b/Blink/Drivers/CMSIS/DSP/Examples/ARM/arm_graphic_equalizer_example/arm_graphic_equalizer_example_q31.c
deleted file mode 100644
index c263d18..0000000
--- a/Blink/Drivers/CMSIS/DSP/Examples/ARM/arm_graphic_equalizer_example/arm_graphic_equalizer_example_q31.c
+++ /dev/null
@@ -1,411 +0,0 @@
-/* ----------------------------------------------------------------------
-* Copyright (C) 2010-2012 ARM Limited. All rights reserved.
-*
-* $Date: 17. January 2013
-* $Revision: V1.4.0
-*
-* Project: CMSIS DSP Library
-* Title: arm_graphic_equalizer_example_q31.c
-*
-* Description: Example showing an audio graphic equalizer constructed
-* out of Biquad filters.
-*
-* 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.
- * -------------------------------------------------------------------- */
-
-/**
- * @ingroup groupExamples
- */
-
-/**
- * @defgroup GEQ5Band Graphic Audio Equalizer Example
- *
- * \par Description:
- * \par
- * This example demonstrates how a 5-band graphic equalizer can be constructed
- * using the Biquad cascade functions.
- * A graphic equalizer is used in audio applications to vary the tonal quality
- * of the audio.
- *
- * \par Block Diagram:
- * \par
- * The design is based on a cascade of 5 filter sections.
- * \image html GEQ_signalflow.gif
- * Each filter section is 4th order and consists of a cascade of two Biquads.
- * Each filter has a nominal gain of 0 dB (1.0 in linear units) and
- * boosts or cuts signals within a specific frequency range.
- * The edge frequencies between the 5 bands are 100, 500, 2000, and 6000 Hz.
- * Each band has an adjustable boost or cut in the range of +/- 9 dB.
- * For example, the band that extends from 500 to 2000 Hz has the response shown below:
- * \par
- * \image html GEQ_bandresponse.gif
- * \par
- * With 1 dB steps, each filter has a total of 19 different settings.
- * The filter coefficients for all possible 19 settings were precomputed
- * in MATLAB and stored in a table. With 5 different tables, there are
- * a total of 5 x 19 = 95 different 4th order filters.
- * All 95 responses are shown below:
- * \par
- * \image html GEQ_allbandresponse.gif
- * \par
- * Each 4th order filter has 10 coefficents for a grand total of 950 different filter
- * coefficients that must be tabulated. The input and output data is in Q31 format.
- * For better noise performance, the two low frequency bands are implemented using the high
- * precision 32x64-bit Biquad filters. The remaining 3 high frequency bands use standard
- * 32x32-bit Biquad filters. The input signal used in the example is a logarithmic chirp.
- * \par
- * \image html GEQ_inputchirp.gif
- * \par
- * The array <code>bandGains</code> specifies the gain in dB to apply in each band.
- * For example, if <code>bandGains={0, -3, 6, 4, -6};</code> then the output signal will be:
- * \par
- * \image html GEQ_outputchirp.gif
- * \par
- * \note The output chirp signal follows the gain or boost of each band.
- * \par
- *
- * \par Variables Description:
- * \par
- * \li \c testInput_f32 points to the input data
- * \li \c testRefOutput_f32 points to the reference output data
- * \li \c testOutput points to the test output data
- * \li \c inputQ31 temporary input buffer
- * \li \c outputQ31 temporary output buffer
- * \li \c biquadStateBand1Q31 points to state buffer for band1
- * \li \c biquadStateBand2Q31 points to state buffer for band2
- * \li \c biquadStateBand3Q31 points to state buffer for band3
- * \li \c biquadStateBand4Q31 points to state buffer for band4
- * \li \c biquadStateBand5Q31 points to state buffer for band5
- * \li \c coeffTable points to coefficient buffer for all bands
- * \li \c gainDB gain buffer which has gains applied for all the bands
- *
- * \par CMSIS DSP Software Library Functions Used:
- * \par
- * - arm_biquad_cas_df1_32x64_init_q31()
- * - arm_biquad_cas_df1_32x64_q31()
- * - arm_biquad_cascade_df1_init_q31()
- * - arm_biquad_cascade_df1_q31()
- * - arm_scale_q31()
- * - arm_scale_f32()
- * - arm_float_to_q31()
- * - arm_q31_to_float()
- *
- * <b> Refer </b>
- * \link arm_graphic_equalizer_example_q31.c \endlink
- *
- */
-
-
-/** \example arm_graphic_equalizer_example_q31.c
- */
-
-
-#include "arm_math.h"
-#include "math_helper.h"
-
-/* Length of the overall data in the test */
-#define TESTLENGTH 320
-
-/* Block size for the underlying processing */
-#define BLOCKSIZE 32
-
-/* Total number of blocks to run */
-#define NUMBLOCKS (TESTLENGTH/BLOCKSIZE)
-
-/* Number of 2nd order Biquad stages per filter */
-#define NUMSTAGES 2
-
-#define SNR_THRESHOLD_F32 98
-
-/* -------------------------------------------------------------------
- * External Declarations for Input and Output buffers
- * ------------------------------------------------------------------- */
-
-extern float32_t testInput_f32[TESTLENGTH];
-static float32_t testOutput[TESTLENGTH];
-
-extern float32_t testRefOutput_f32[TESTLENGTH];
-
-/* ----------------------------------------------------------------------
-** Q31 state buffers for Band1, Band2, Band3, Band4, Band5
-** ------------------------------------------------------------------- */
-
-static q63_t biquadStateBand1Q31[4 * 2];
-static q63_t biquadStateBand2Q31[4 * 2];
-static q31_t biquadStateBand3Q31[4 * 2];
-static q31_t biquadStateBand4Q31[4 * 2];
-static q31_t biquadStateBand5Q31[4 * 2];
-
-/* ----------------------------------------------------------------------
-** Q31 input and output buffers
-** ------------------------------------------------------------------- */
-
-q31_t inputQ31[BLOCKSIZE];
-q31_t outputQ31[BLOCKSIZE];
-
-/* ----------------------------------------------------------------------
-** Entire coefficient table. There are 10 coefficients per 4th order Biquad
-** cascade filter. The first 10 coefficients correspond to the -9 dB gain
-** setting of band 1; the next 10 coefficient correspond to the -8 dB gain
-** setting of band 1; and so on. There are 10*19=190 coefficients in total
-** for band 1 (gains = -9, -8, -7, ..., 9). After this come the 190 coefficients
-** for band 2.
-**
-** The coefficients are in Q29 format and require a postShift of 2.
-** ------------------------------------------------------------------- */
-
-const q31_t coeffTable[950] = {
-
- /* Band 1, -9 dB gain */
- 535576962, -1071153923, 535576962, 1073741824, -536870912, 535576962, -1063501998, 527979313, 1060865294, -524146981,
- /* Band 1, -8 dB gain */
- 535723226, -1071446451, 535723226, 1073741824, -536870912, 535723226, -1063568947, 527903217, 1061230578, -524503778,
- 535868593, -1071737186, 535868593, 1073741824, -536870912, 535868593, -1063627467, 527819780, 1061585502, -524850686,
- 536013181, -1072026363, 536013181, 1073741824, -536870912, 536013181, -1063677598, 527728935, 1061930361, -525187972,
- 536157109, -1072314217, 536157109, 1073741824, -536870912, 536157109, -1063719372, 527630607, 1062265438, -525515897,
- 536300492, -1072600983, 536300492, 1073741824, -536870912, 536300492, -1063752815, 527524720, 1062591011, -525834716,
- 536443447, -1072886894, 536443447, 1073741824, -536870912, 536443447, -1063777945, 527411186, 1062907350, -526144676,
- 536586091, -1073172183, 536586091, 1073741824, -536870912, 536586091, -1063794775, 527289917, 1063214717, -526446017,
- 536728541, -1073457082, 536728541, 1073741824, -536870912, 536728541, -1063803308, 527160815, 1063513366, -526738975,
- 536870912, -1073741824, 536870912, 1073741824, -536870912, 536870912, -1063803543, 527023777, 1063803543, -527023777,
- 537013321, -1074026642, 537013321, 1073741824, -536870912, 537013321, -1063795470, 526878696, 1064085490, -527300648,
- 537155884, -1074311768, 537155884, 1073741824, -536870912, 537155884, -1063779073, 526725455, 1064359439, -527569803,
- 537298718, -1074597435, 537298718, 1073741824, -536870912, 537298718, -1063754328, 526563934, 1064625617, -527831454,
- 537441939, -1074883878, 537441939, 1073741824, -536870912, 537441939, -1063721205, 526394005, 1064884245, -528085806,
- 537585666, -1075171331, 537585666, 1073741824, -536870912, 537585666, -1063679666, 526215534, 1065135536, -528333059,
- 537730015, -1075460030, 537730015, 1073741824, -536870912, 537730015, -1063629666, 526028380, 1065379699, -528573409,
- 537875106, -1075750212, 537875106, 1073741824, -536870912, 537875106, -1063571152, 525832396, 1065616936, -528807045,
- 538021057, -1076042114, 538021057, 1073741824, -536870912, 538021057, -1063504065, 525627429, 1065847444, -529034151,
- 538167989, -1076335977, 538167989, 1073741824, -536870912, 538167989, -1063428338, 525413317, 1066071412, -529254907,
-
- /* Band 2, -9 dB gain */
- 531784976, -1055497692, 523873415, 1066213307, -529420241, 531784976, -1040357886, 509828014, 1028908252, -494627367,
- /* Band 2, -8 dB gain */
- 532357636, -1056601982, 524400080, 1066115844, -529326645, 532357636, -1040623406, 509562600, 1030462237, -496062122,
- 532927392, -1057707729, 524931110, 1066024274, -529239070, 532927392, -1040848253, 509262081, 1031969246, -497457090,
- 533494678, -1058816094, 525467240, 1065939047, -529157961, 533494678, -1041032161, 508925950, 1033429976, -498812573,
- 534059929, -1059928204, 526009170, 1065860582, -529083734, 534059929, -1041174868, 508553717, 1034845124, -500128887,
- 534623580, -1061045148, 526557561, 1065789260, -529016764, 534623580, -1041276126, 508144920, 1036215393, -501406373,
- 535186068, -1062167969, 527113032, 1065725420, -528957385, 535186068, -1041335703, 507699125, 1037541500, -502645399,
- 535747827, -1063297666, 527676151, 1065669351, -528905879, 535747827, -1041353386, 507215934, 1038824183, -503846368,
- 536309295, -1064435183, 528247436, 1065621289, -528862476, 536309295, -1041328990, 506694984, 1040064203, -505009724,
- 536870912, -1065581413, 528827349, 1065581413, -528827349, 536870912, -1041262354, 506135953, 1041262354, -506135953,
- 537433117, -1066737194, 529416295, 1065549847, -528800610, 537433117, -1041153346, 505538564, 1042419457, -507225588,
- 537996352, -1067903307, 530014622, 1065526651, -528782316, 537996352, -1041001864, 504902578, 1043536370, -508279208,
- 538561061, -1069080480, 530622620, 1065511830, -528772462, 538561061, -1040807833, 504227800, 1044613981, -509297437,
- 539127690, -1070269387, 531240527, 1065505333, -528770987, 539127690, -1040571205, 503514074, 1045653211, -510280946,
- 539696690, -1071470656, 531868525, 1065507054, -528777778, 539696690, -1040291951, 502761277, 1046655011, -511230450,
- 540268512, -1072684867, 532506750, 1065516837, -528792672, 540268512, -1039970063, 501969320, 1047620358, -512146700,
- 540843613, -1073912567, 533155297, 1065534483, -528815459, 540843613, -1039605542, 501138139, 1048550251, -513030484,
- 541422451, -1075154268, 533814224, 1065559750, -528845892, 541422451, -1039198394, 500267687, 1049445708, -513882621,
- 542005489, -1076410460, 534483561, 1065592362, -528883686, 542005489, -1038748624, 499357932, 1050307760, -514703956,
- 518903861, -1001986830, 486725277, 1037235801, -502367695, 518903861, -945834422, 446371043, 902366163, -400700571,
- 520899989, -1005630916, 488289126, 1036926846, -502147311, 520899989, -946490935, 445581846, 907921945, -404936158,
- 522893209, -1009290002, 489869792, 1036650484, -501961419, 522893209, -947006359, 444685310, 913306106, -409075225,
- 524884763, -1012968199, 491470256, 1036407567, -501810737, 524884763, -947377809, 443679533, 918521018, -413116221,
- 526875910, -1016669649, 493093518, 1036198712, -501695739, 526875910, -947602324, 442562672, 923569247, -417057897,
- 528867927, -1020398503, 494742575, 1036024293, -501616651, 528867927, -947676875, 441332970, 928453558, -420899319,
- 530862111, -1024158905, 496420407, 1035884447, -501573457, 530862111, -947598385, 439988777, 933176909, -424639872,
- 532859778, -1027954970, 498129955, 1035779077, -501565907, 532859778, -947363742, 438528571, 937742446, -428279254,
- 534862260, -1031790763, 499874098, 1035707863, -501593525, 534862260, -946969823, 436950987, 942153486, -431817474,
- 536870912, -1035670279, 501655630, 1035670279, -501655630, 536870912, -946413508, 435254839, 946413508, -435254839,
- 538887107, -1039597419, 503477238, 1035665609, -501751354, 538887107, -945691703, 433439146, 950526127, -438591937,
- 540912240, -1043575967, 505341475, 1035692963, -501879659, 540912240, -944801359, 431503152, 954495080, -441829621,
- 542947726, -1047609569, 507250741, 1035751307, -502039364, 542947726, -943739490, 429446349, 958324201, -444968987,
- 544995000, -1051701717, 509207261, 1035839473, -502229165, 544995000, -942503190, 427268492, 962017400, -448011351,
- 547055523, -1055855728, 511213065, 1035956193, -502447657, 547055523, -941089647, 424969617, 965578640, -450958226,
- 549130774, -1060074734, 513269973, 1036100110, -502693359, 549130774, -939496155, 422550049, 969011913, -453811298,
- 551222259, -1064361672, 515379585, 1036269804, -502964731, 551222259, -937720119, 420010407, 972321228, -456572401,
- 553331507, -1068719280, 517543273, 1036463810, -503260192, 553331507, -935759057, 417351601, 975510582, -459243495,
- 555460072, -1073150100, 519762181, 1036680633, -503578144, 555460072, -933610600, 414574832, 978583948, -461826644,
- 494084017, -851422604, 404056273, 930151631, -423619864, 494084017, -673714108, 339502486, 561843007, -265801750,
- 498713542, -859177141, 406587077, 929211656, -423786402, 498713542, -673274906, 338185129, 573719128, -272222942,
- 503369016, -867012190, 409148384, 928362985, -424054784, 503369016, -672533059, 336693984, 585290277, -278599028,
- 508052536, -874935599, 411746438, 927604291, -424422151, 508052536, -671478538, 335026905, 596558312, -284920289,
- 512766286, -882955583, 414387826, 926933782, -424885216, 512766286, -670100998, 333182045, 607525792, -291177811,
- 517512534, -891080712, 417079474, 926349262, -425440318, 517512534, -668389789, 331157902, 618195914, -297363485,
- 522293635, -899319903, 419828635, 925848177, -426083491, 522293635, -666333963, 328953368, 628572440, -303470012,
- 527112032, -907682405, 422642886, 925427679, -426810526, 527112032, -663922286, 326567785, 638659631, -309490882,
- 531970251, -916177781, 425530105, 925084675, -427617023, 531970251, -661143261, 324000998, 648462180, -315420352,
- 536870912, -924815881, 428498454, 924815881, -428498454, 536870912, -657985147, 321253420, 657985147, -321253420,
- 541816719, -933606817, 431556352, 924617870, -429450209, 541816719, -654435997, 318326093, 667233900, -326985786,
- 546810467, -942560921, 434712438, 924487114, -430467639, 546810467, -650483688, 315220754, 676214053, -332613816,
- 551855042, -951688708, 437975532, 924420027, -431546101, 551855042, -646115970, 311939896, 684931422, -338134495,
- 556953421, -961000826, 441354588, 924413001, -432680993, 556953421, -641320513, 308486839, 693391970, -343545389,
- 562108672, -970508005, 444858642, 924462435, -433867780, 562108672, -636084967, 304865786, 701601770, -348844597,
- 567323959, -980220994, 448496743, 924564764, -435102022, 567323959, -630397020, 301081886, 709566963, -354030710,
- 572602539, -990150500, 452277894, 924716482, -436379394, 572602539, -624244471, 297141281, 717293726, -359102767,
- 577947763, -1000307125, 456210977, 924914158, -437695705, 577947763, -617615296, 293051155, 724788245, -364060214,
- 583363084, -1010701292, 460304674, 925154455, -439046908, 583363084, -610497723, 288819761, 732056685, -368902865,
- 387379495, -506912469, 196933274, 840112184, -347208270, 387379495, 506912469, 196933274, -840112184, -347208270,
- 401658082, -532275898, 207149427, 833765363, -343175316, 401658082, 532275898, 207149427, -833765363, -343175316,
- 416472483, -558722695, 217902617, 827270154, -339107319, 416472483, 558722695, 217902617, -827270154, -339107319,
- 431841949, -586290861, 229212798, 820624988, -335007540, 431841949, 586290861, 229212798, -820624988, -335007540,
- 447786335, -615019650, 241100489, 813828443, -330879528, 447786335, 615019650, 241100489, -813828443, -330879528,
- 464326111, -644949597, 253586805, 806879270, -326727141, 464326111, 644949597, 253586805, -806879270, -326727141,
- 481482377, -676122557, 266693475, 799776409, -322554559, 481482377, 676122557, 266693475, -799776409, -322554559,
- 499276882, -708581728, 280442865, 792519013, -318366296, 499276882, 708581728, 280442865, -792519013, -318366296,
- 517732032, -742371685, 294857996, 785106465, -314167221, 517732032, 742371685, 294857996, -785106465, -314167221,
- 536870912, -777538408, 309962566, 777538408, -309962566, 536870912, 777538408, 309962566, -777538408, -309962566,
- 556717294, -814129313, 325780968, 769814766, -305757943, 556717294, 814129313, 325780968, -769814766, -305757943,
- 577295658, -852193284, 342338310, 761935777, -301559360, 577295658, 852193284, 342338310, -761935777, -301559360,
- 598631206, -891780698, 359660433, 753902014, -297373230, 598631206, 891780698, 359660433, -753902014, -297373230,
- 620749877, -932943463, 377773927, 745714425, -293206383, 620749877, 932943463, 377773927, -745714425, -293206383,
- 643678365, -975735041, 396706151, 737374355, -289066077, 643678365, 975735041, 396706151, -737374355, -289066077,
- 667444134, -1020210487, 416485252, 728883588, -284960004, 667444134, 1020210487, 416485252, -728883588, -284960004,
- 692075438, -1066426476, 437140179, 720244375, -280896294, 692075438, 1066426476, 437140179, -720244375, -280896294,
- 717601336, -1114441339, 458700704, 711459472, -276883515, 717601336, 1114441339, 458700704, -711459472, -276883515,
- 744051710, -1164315096, 481197437, 702532174, -272930673, 744051710, 1164315096, 481197437, -702532174, -272930673
-
-};
-
-/* ----------------------------------------------------------------------
-** Desired gains, in dB, per band
-** ------------------------------------------------------------------- */
-
-int gainDB[5] = {0, -3, 6, 4, -6};
-
-float32_t snr;
-
-
-/* ----------------------------------------------------------------------
- * Graphic equalizer Example
- * ------------------------------------------------------------------- */
-
-int32_t main(void)
-{
- float32_t *inputF32, *outputF32;
- arm_biquad_cas_df1_32x64_ins_q31 S1;
- arm_biquad_cas_df1_32x64_ins_q31 S2;
- arm_biquad_casd_df1_inst_q31 S3;
- arm_biquad_casd_df1_inst_q31 S4;
- arm_biquad_casd_df1_inst_q31 S5;
- int i;
- int32_t status;
-
- inputF32 = &testInput_f32[0];
- outputF32 = &testOutput[0];
-
- /* Initialize the state and coefficient buffers for all Biquad sections */
-
- arm_biquad_cas_df1_32x64_init_q31(&S1, NUMSTAGES,
- (q31_t *) &coeffTable[190*0 + 10*(gainDB[0] + 9)],
- &biquadStateBand1Q31[0], 2);
-
- arm_biquad_cas_df1_32x64_init_q31(&S2, NUMSTAGES,
- (q31_t *) &coeffTable[190*1 + 10*(gainDB[1] + 9)],
- &biquadStateBand2Q31[0], 2);
-
- arm_biquad_cascade_df1_init_q31(&S3, NUMSTAGES,
- (q31_t *) &coeffTable[190*2 + 10*(gainDB[2] + 9)],
- &biquadStateBand3Q31[0], 2);
-
- arm_biquad_cascade_df1_init_q31(&S4, NUMSTAGES,
- (q31_t *) &coeffTable[190*3 + 10*(gainDB[3] + 9)],
- &biquadStateBand4Q31[0], 2);
-
- arm_biquad_cascade_df1_init_q31(&S5, NUMSTAGES,
- (q31_t *) &coeffTable[190*4 + 10*(gainDB[4] + 9)],
- &biquadStateBand5Q31[0], 2);
-
-
- /* Call the process functions and needs to change filter coefficients
- for varying the gain of each band */
-
- for(i=0; i < NUMBLOCKS; i++)
- {
-
- /* ----------------------------------------------------------------------
- ** Convert block of input data from float to Q31
- ** ------------------------------------------------------------------- */
-
- arm_float_to_q31(inputF32 + (i*BLOCKSIZE), inputQ31, BLOCKSIZE);
-
- /* ----------------------------------------------------------------------
- ** Scale down by 1/8. This provides additional headroom so that the
- ** graphic EQ can apply gain.
- ** ------------------------------------------------------------------- */
-
- arm_scale_q31(inputQ31, 0x7FFFFFFF, -3, inputQ31, BLOCKSIZE);
-
- /* ----------------------------------------------------------------------
- ** Call the Q31 Biquad Cascade DF1 32x64 process function for band1, band2
- ** ------------------------------------------------------------------- */
-
- arm_biquad_cas_df1_32x64_q31(&S1, inputQ31, outputQ31, BLOCKSIZE);
- arm_biquad_cas_df1_32x64_q31(&S2, outputQ31, outputQ31, BLOCKSIZE);
-
- /* ----------------------------------------------------------------------
- ** Call the Q31 Biquad Cascade DF1 process function for band3, band4, band5
- ** ------------------------------------------------------------------- */
-
- arm_biquad_cascade_df1_q31(&S3, outputQ31, outputQ31, BLOCKSIZE);
- arm_biquad_cascade_df1_q31(&S4, outputQ31, outputQ31, BLOCKSIZE);
- arm_biquad_cascade_df1_q31(&S5, outputQ31, outputQ31, BLOCKSIZE);
-
- /* ----------------------------------------------------------------------
- ** Convert Q31 result back to float
- ** ------------------------------------------------------------------- */
-
- arm_q31_to_float(outputQ31, outputF32 + (i * BLOCKSIZE), BLOCKSIZE);
-
- /* ----------------------------------------------------------------------
- ** Scale back up
- ** ------------------------------------------------------------------- */
-
- arm_scale_f32(outputF32 + (i * BLOCKSIZE), 8.0f, outputF32 + (i * BLOCKSIZE), BLOCKSIZE);
- };
-
- snr = arm_snr_f32(testRefOutput_f32, testOutput, TESTLENGTH);
-
- if (snr < SNR_THRESHOLD_F32)
- {
- status = ARM_MATH_TEST_FAILURE;
- }
- else
- {
- status = ARM_MATH_SUCCESS;
- }
-
- /* ----------------------------------------------------------------------
- ** Loop here if the signal does not match the reference output.
- ** ------------------------------------------------------------------- */
-
- if ( status != ARM_MATH_SUCCESS)
- {
- while (1);
- }
-
- while (1); /* main function does not return */
-}
-
-/** \endlink */
-
-
-
diff --git a/Blink/Drivers/CMSIS/DSP/Examples/ARM/arm_graphic_equalizer_example/math_helper.c b/Blink/Drivers/CMSIS/DSP/Examples/ARM/arm_graphic_equalizer_example/math_helper.c
deleted file mode 100644
index f615e6f..0000000
--- a/Blink/Drivers/CMSIS/DSP/Examples/ARM/arm_graphic_equalizer_example/math_helper.c
+++ /dev/null
@@ -1,466 +0,0 @@
-/* ----------------------------------------------------------------------
-* 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;
- }
-
- }
-}
-
-
-
-
diff --git a/Blink/Drivers/CMSIS/DSP/Examples/ARM/arm_graphic_equalizer_example/math_helper.h b/Blink/Drivers/CMSIS/DSP/Examples/ARM/arm_graphic_equalizer_example/math_helper.h
deleted file mode 100644
index 5a18734..0000000
--- a/Blink/Drivers/CMSIS/DSP/Examples/ARM/arm_graphic_equalizer_example/math_helper.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/* ----------------------------------------------------------------------
-* Copyright (C) 2010-2013 ARM Limited. All rights reserved.
-*
-* $Date: 17. January 2013
-* $Revision: V1.4.0
-*
-* Project: CMSIS DSP Library
-*
-* Title: math_helper.h
-*
-* Description: Prototypes 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 "arm_math.h"
-
-#ifndef MATH_HELPER_H
-#define MATH_HELPER_H
-
-float arm_snr_f32(float *pRef, float *pTest, uint32_t buffSize);
-void arm_float_to_q12_20(float *pIn, q31_t * pOut, uint32_t numSamples);
-void arm_provide_guard_bits_q15(q15_t *input_buf, uint32_t blockSize, uint32_t guard_bits);
-void arm_provide_guard_bits_q31(q31_t *input_buf, uint32_t blockSize, uint32_t guard_bits);
-void arm_float_to_q14(float *pIn, q15_t *pOut, uint32_t numSamples);
-void arm_float_to_q29(float *pIn, q31_t *pOut, uint32_t numSamples);
-void arm_float_to_q28(float *pIn, q31_t *pOut, uint32_t numSamples);
-void arm_float_to_q30(float *pIn, q31_t *pOut, uint32_t numSamples);
-void arm_clip_f32(float *pIn, uint32_t numSamples);
-uint32_t arm_calc_guard_bits(uint32_t num_adds);
-void arm_apply_guard_bits (float32_t * pIn, uint32_t numSamples, uint32_t guard_bits);
-uint32_t arm_compare_fixed_q15(q15_t *pIn, q15_t * pOut, uint32_t numSamples);
-uint32_t arm_compare_fixed_q31(q31_t *pIn, q31_t *pOut, uint32_t numSamples);
-uint32_t arm_calc_2pow(uint32_t guard_bits);
-#endif
-
generated by cgit (git 2.34.1) at 2024-11-09 14:26:28 +0000