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diff --git a/Drivers/CMSIS/DSP/Source/TransformFunctions/arm_rfft_init_f32.c b/Drivers/CMSIS/DSP/Source/TransformFunctions/arm_rfft_init_f32.c
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+/* ----------------------------------------------------------------------

+ * Project:      CMSIS DSP Library

+ * Title:        arm_rfft_init_f32.c

+ * Description:  RFFT & RIFFT Floating point initialisation function

+ *

+ * $Date:        18. March 2019

+ * $Revision:    V1.6.0

+ *

+ * Target Processor: Cortex-M cores

+ * -------------------------------------------------------------------- */

+/*

+ * Copyright (C) 2010-2019 ARM Limited or its affiliates. All rights reserved.

+ *

+ * SPDX-License-Identifier: Apache-2.0

+ *

+ * Licensed under the Apache License, Version 2.0 (the License); you may

+ * not use this file except in compliance with the License.

+ * You may obtain a copy of the License at

+ *

+ * www.apache.org/licenses/LICENSE-2.0

+ *

+ * Unless required by applicable law or agreed to in writing, software

+ * distributed under the License is distributed on an AS IS BASIS, WITHOUT

+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

+ * See the License for the specific language governing permissions and

+ * limitations under the License.

+ */

+

+#include "arm_math.h"

+#include "arm_common_tables.h"

+

+

+/**

+  @addtogroup RealFFT

+  @{

+ */

+

+/**

+  @brief         Initialization function for the floating-point RFFT/RIFFT.

+  @deprecated    Do not use this function. It has been superceded by \ref arm_rfft_fast_init_f32 and will be removed in the future.

+  @param[in,out] S             points to an instance of the floating-point RFFT/RIFFT structure

+  @param[in,out] S_CFFT        points to an instance of the floating-point CFFT/CIFFT structure

+  @param[in]     fftLenReal     length of the FFT.

+  @param[in]     ifftFlagR      flag that selects transform direction

+                   - value = 0: forward transform

+                   - value = 1: inverse transform

+  @param[in]     bitReverseFlag flag that enables / disables bit reversal of output

+                   - value = 0: disables bit reversal of output

+                   - value = 1: enables bit reversal of output

+  @return        execution status

+                   - \ref ARM_MATH_SUCCESS        : Operation successful

+                   - \ref ARM_MATH_ARGUMENT_ERROR : <code>fftLenReal</code> is not a supported length

+

+  @par Description

+                   The parameter <code>fftLenReal</code>specifies length of RFFT/RIFFT Process.

+                   Supported FFT Lengths are 128, 512, 2048.

+  @par

+                   The parameter <code>ifftFlagR</code> controls whether a forward or inverse transform is computed.

+                   Set(=1) ifftFlagR to calculate RIFFT, otherwise RFFT is calculated.

+  @par

+                   The parameter <code>bitReverseFlag</code> controls whether output is in normal order or bit reversed order.

+                   Set(=1) bitReverseFlag for output to be in normal order otherwise output is in bit reversed order.

+  @par

+                   This function also initializes Twiddle factor table.

+ */

+

+arm_status arm_rfft_init_f32(

+  arm_rfft_instance_f32 * S,

+  arm_cfft_radix4_instance_f32 * S_CFFT,

+  uint32_t fftLenReal,

+  uint32_t ifftFlagR,

+  uint32_t bitReverseFlag)

+{

+

+  /*  Initialise the default arm status */

+  arm_status status = ARM_MATH_SUCCESS;

+

+  /*  Initialize the Real FFT length */

+  S->fftLenReal = (uint16_t) fftLenReal;

+

+  /*  Initialize the Complex FFT length */

+  S->fftLenBy2 = (uint16_t) fftLenReal / 2U;

+

+  /*  Initialize the Twiddle coefficientA pointer */

+  S->pTwiddleAReal = (float32_t *) realCoefA;

+

+  /*  Initialize the Twiddle coefficientB pointer */

+  S->pTwiddleBReal = (float32_t *) realCoefB;

+

+  /*  Initialize the Flag for selection of RFFT or RIFFT */

+  S->ifftFlagR = (uint8_t) ifftFlagR;

+

+  /*  Initialize the Flag for calculation Bit reversal or not */

+  S->bitReverseFlagR = (uint8_t) bitReverseFlag;

+

+  /*  Initializations of structure parameters depending on the FFT length */

+  switch (S->fftLenReal)

+  {

+    /* Init table modifier value */

+  case 8192U:

+    S->twidCoefRModifier = 1U;

+    break;

+  case 2048U:

+    S->twidCoefRModifier = 4U;

+    break;

+  case 512U:

+    S->twidCoefRModifier = 16U;

+    break;

+  case 128U:

+    S->twidCoefRModifier = 64U;

+    break;

+  default:

+    /*  Reporting argument error if rfftSize is not valid value */

+    status = ARM_MATH_ARGUMENT_ERROR;

+    break;

+  }

+

+  /* Init Complex FFT Instance */

+  S->pCfft = S_CFFT;

+

+  if (S->ifftFlagR)

+  {

+    /* Initializes the CIFFT Module for fftLenreal/2 length */

+    arm_cfft_radix4_init_f32(S->pCfft, S->fftLenBy2, 1U, 0U);

+  }

+  else

+  {

+    /* Initializes the CFFT Module for fftLenreal/2 length */

+    arm_cfft_radix4_init_f32(S->pCfft, S->fftLenBy2, 0U, 0U);

+  }

+

+  /* return the status of RFFT Init function */

+  return (status);

+

+}

+

+/**

+  @} end of RealFFT group

+ */