CC2652RB: Linking errors in using CMSIS 5.8.0 with CCS 10.0.0

Hi Daniel,

thanks for the link. the path issues are resolved. But, when I tried to implement the example program in CCS, I have few linking errors which I'm not exactly aware of. The example code is  in my location/cmsis/DSP/examples/arm/arm_fft_bin_example.

below is the code and errors pic attached. Can you help me with this?

/* ----------------------------------------------------------------------
* Copyright (C) 2010-2012 ARM Limited. All rights reserved.
*
* $Date: 17. January 2013
* $Revision: V1.4.0
*
* Project: CMSIS DSP Library
* Title: arm_fft_bin_example_f32.c
*
* Description: Example code demonstrating calculation of Max energy bin of
* frequency domain of input signal.
*
* 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 FrequencyBin Frequency Bin Example
*
* \par Description
* \par
* Demonstrates the calculation of the maximum energy bin in the frequency
* domain of the input signal with the use of Complex FFT, Complex
* Magnitude, and Maximum functions.
*
* \par Algorithm:
* \par
* The input test signal contains a 10 kHz signal with uniformly distributed white noise.
* Calculating the FFT of the input signal will give us the maximum energy of the
* bin corresponding to the input frequency of 10 kHz.
*
* \par Block Diagram:
* \image html FFTBin.gif "Block Diagram"
* \par
* The figure below shows the time domain signal of 10 kHz signal with
* uniformly distributed white noise, and the next figure shows the input
* in the frequency domain. The bin with maximum energy corresponds to 10 kHz signal.
* \par
* \image html FFTBinInput.gif "Input signal in Time domain"
* \image html FFTBinOutput.gif "Input signal in Frequency domain"
*
* \par Variables Description:
* \par
* \li \c testInput_f32_10khz points to the input data
* \li \c testOutput points to the output data
* \li \c fftSize length of FFT
* \li \c ifftFlag flag for the selection of CFFT/CIFFT
* \li \c doBitReverse Flag for selection of normal order or bit reversed order
* \li \c refIndex reference index value at which maximum energy of bin ocuurs
* \li \c testIndex calculated index value at which maximum energy of bin ocuurs
*
* \par CMSIS DSP Software Library Functions Used:
* \par
* - arm_cfft_f32()
* - arm_cmplx_mag_f32()
* - arm_max_f32()
*
* <b> Refer </b>
* \link arm_fft_bin_example_f32.c \endlink
*
*/

/** \example arm_fft_bin_example_f32.c
*/

#include "arm_math.h"
#include "arm_const_structs.h"

#if defined(SEMIHOSTING)
#include <stdio.h>
#endif

#define TEST_LENGTH_SAMPLES 2048

/* -------------------------------------------------------------------
* External Input and Output buffer Declarations for FFT Bin Example
* ------------------------------------------------------------------- */
extern float32_t testInput_f32_10khz[TEST_LENGTH_SAMPLES];
static float32_t testOutput[TEST_LENGTH_SAMPLES/2];

/* ------------------------------------------------------------------
* Global variables for FFT Bin Example
* ------------------------------------------------------------------- */
uint32_t fftSize = 1024;
uint32_t ifftFlag = 0;
uint32_t doBitReverse = 1;
arm_cfft_instance_f32 varInstCfftF32;

/* Reference index at which max energy of bin ocuurs */
uint32_t refIndex = 213, testIndex = 0;

/* ----------------------------------------------------------------------
* Max magnitude FFT Bin test
* ------------------------------------------------------------------- */

int32_t main(void)
{

arm_status status;
float32_t maxValue;

status = ARM_MATH_SUCCESS;

status=arm_cfft_init_f32(&varInstCfftF32,fftSize);

/* Process the data through the CFFT/CIFFT module */
arm_cfft_f32(&varInstCfftF32, testInput_f32_10khz, ifftFlag, doBitReverse);

/* Process the data through the Complex Magnitude Module for
calculating the magnitude at each bin */
arm_cmplx_mag_f32(testInput_f32_10khz, testOutput, fftSize);

/* Calculates maxValue and returns corresponding BIN value */
arm_max_f32(testOutput, fftSize, &maxValue, &testIndex);

status = (testIndex != refIndex) ? ARM_MATH_TEST_FAILURE : ARM_MATH_SUCCESS;

if (status != ARM_MATH_SUCCESS)
{
#if defined (SEMIHOSTING)
printf("FAILURE\n");
#else
while (1); /* main function does not return */
#endif
}
else
{
#if defined (SEMIHOSTING)
printf("SUCCESS\n");
#else
while (1); /* main function does not return */
#endif
}
}

/** \endlink */

Praneeth,

Did you look at the linked resources at the bottom of the post I linked to? They mention the need to add a pre defined symbol to your project:

Can you try adding the appropriate predefine and see if that works?

Regards,

Daniel

Hi Daniel, 

Thanks for that. it worked!! I have one more issue with working on one function in CMSIS-DSP (arm_fast_rfft_f16()). As of now, I'm using cmsis 5.7 version lib file. When I tried using that function there were a few errors showing about __fp16 and _Float16 data types which are not defined. I have also searched the whole CMSIS 5.7.0 and 5.8.0 for the related files but I couldn't find any. Can you help in resolving this issue?

Here is one screenshot of the errors and warnings.

Which compiler are you using? The error is in the CMSIS library at /CMSIS_5-5.8.0/CMSIS/DSP/Include/arm_math_types_f16.h

*/
#if !(__ARM_FEATURE_MVE & 2)
  #if !defined(DISABLEFLOAT16)
    #if defined(__ARM_FP16_FORMAT_IEEE) || defined(__ARM_FP16_FORMAT_ALTERNATIVE)
      typedef __fp16 float16_t;
      #define ARM_FLOAT16_SUPPORTED
    #endif
  #endif
#else
  /* When Vector float16, this flag is always defined and can't be disabled */
  #define ARM_FLOAT16_SUPPORTED
#endif

The error is that __fp16 is undefined, which could be related to the compiler you are using.

Hi,

I'm using the compiler version is TI v20.2.0.LTS. Which one will be supporting the __fp16 datatypes?

Praneeth,

The original post I linked to (https://e2e.ti.com/support/wireless-connectivity/bluetooth-group/bluetooth/f/bluetooth-forum/1032595/faq-cc2642r-fft-on-cc13x2-cc26x2-devices) has been slightly updated with a library. Can you try that and see if you issue is resolved?

-Daniel

Yeah, 

The link which you have shared is showing the same thread with the same library file we used earlier, it is using CMSIS 5.7 version. It is not having arm_fast_rfft_f16() in the library file which I needed to use.

The current version CMSIS 5.8.0 is having all the source codes and header files. It is not having a library file. Any idea how to implement the current version in CCS and use f16() functions?