1 /* ----------------------------------------------------------------------
8  * Target Processor: Cortex-M and Cortex-A cores
9  * -------------------------------------------------------------------- */
11  * Copyright (C) 2010-2022 ARM Limited or its affiliates. All rights reserved.
13  * SPDX-License-Identifier: Apache-2.0
19  * www.apache.org/licenses/LICENSE-2.0
41 // Buffer to read samples into, each sample is 16-bits
63         q15_t *b=this->getReadBuffer();  in run()
65         if (b[0]==-1)  in run()
98         q15_t *b=this->getWriteBuffer();  in run()
119         if ((samplesRead-outputSize) > 0)  in run()
121             memmove(sampleBuffer,sampleBuffer+outputSize,sizeof(q15_t)*(samplesRead-outputSize));  in run()
123         samplesRead = samplesRead - outputSize;  in run()
149         int stateLength = numTaps + blockSize - 1;  in FIR()
158         q15_t *a=this->getReadBuffer();  in run()
159         q15_t *b=this->getWriteBuffer();  in run()
161         int stateLength = NUMTAPS + blockSize - 1;  in run()
163         arm_status status=arm_fir_init_q15(&(this->firq15),NUMTAPS,fir_coefs,state,blockSize);  in run()
165         arm_fir_q15(&(this->firq15),a,b,blockSize);  in run()
174 /* Not available in the older CMSIS-DSP version provided with Arduino.
208   shiftForNormalizing= 17 - __CLZ(temp);  in arm_divide_q15()
217     temp = -temp;  in arm_divide_q15()
232 …// Negate can saturate so we use CMSIS-DSP function which is working on array (and we have a scala…  in dsp_zcr_q15()
237     for(int i=0;i<blockSize-1;i++)  in dsp_zcr_q15()
240          int g = w[i+1];  in dsp_zcr_q15()  local
241          if ((((f>0) && (g<0)) || ((f<0) && (g>0))) && g>f)  in dsp_zcr_q15()
255     arm_status status=arm_divide_q15(k,blockSize-1,&quotient,&shift);  in dsp_zcr_q15()
282         q15_t *a=this->getReadBuffer();  in run()
283         q15_t *b=this->getWriteBuffer();  in run()
285         arm_mult_q15(a,this->mWindow,a,inputSize);  in run()
319         q15_t *a=this->getReadBuffer();  in run()
320         q15_t *b=this->getWriteBuffer();  in run()
323         arm_dot_prod_q15(this->mCoef_q15,a,inputSize,&res);  in run()
326         arm_shift_q15(&(this->mIntercept_q15),this->mIntercept_shift-this->mCoef_shift,&scaled,1);  in run()
335             b[0]=-1;  in run()