/* ----------------------------------------------------------------------
  ** Call the FIR process function for every blockSize samples  
  ** ------------------------------------------------------------------- */
  for(i=0; i < numBlocks; i++)  
    {    
      arm_fir_f32(&S, inputF32 + (i * blockSize), outputF32 + (i * blockSize), blockSize);

void DACC_Handler( void )
{
    DACC -> DACC_IDR = DACC_IDR_TXRDY;
    DACC -> DACC_ISR;
    out_numb ++;
    if(out_numb == L)
    {    
        out_numb = 0;
        ADC -> ADC_IER = ADC_IER_EOC5;
        ADC -> ADC_CR = ADC_CR_START;
        return;
    }
    DACC -> DACC_IER = DACC_IER_TXRDY;    
    DACC -> DACC_CDR = DACC_CDR_DATA((outSignalQ15[out_numb] << 5) + 1024);
    return;
}


void ADC_Handler( void )
{
    ADC -> ADC_IDR = ADC_IDR_EOC5;
    ADC -> ADC_ISR;
        
        
    inSignalQ15[in_numb] = ADC -> ADC_CDR[5] & ADC_CDR_DATA_Msk;
    in_numb ++;
    
    if (in_numb == L)
    {
        
        int samp = 0;
        
        in_numb = 0;
        for (samp = 0; samp < L; samp += BLOCKSIZE)    
        {arm_fir_q15(&DTMF_FIR, inSignalQ15 + samp, outSignalQ15 + samp, BLOCKSIZE);}
        
        DACC -> DACC_IER = DACC_IER_TXRDY;
        DACC -> DACC_CDR = DACC_CDR_DATA((outSignalQ15[0] << 5) + 1024);
        return;
    }
    
    ADC -> ADC_IER = ADC_IER_EOC5;
    ADC -> ADC_CR = ADC_CR_START;
    return;
}

for (samp = 0; samp < L; samp += BLOCKSIZE)    
        {arm_fir_q15(&DTMF_FIR, inSignalQ15 + samp, outSignalQ15 + samp, BLOCKSIZE);}