CCS/TMS320C6713B: Acoustic Echo Cancellation using C6713 HELP

Adit,

Both C6713EVM and CCSv3.1 are quite old. From www.ti.com/.../TMDSDSK6713, the EVM supports:

-High-quality 24-bit stereo codec
-Four 3.5mm audio jacks for microphone, line in, speaker and line out

So you can use the audio jacks to input/output signals. You will need a McASP driver for sending/receiving signals in your application.

If you have the Rin/Sin signals captured from field, you can also bypass the driver and directly feed in AEC library and log the Rout/Sout signal and then analyze with speech/audio edit tool like Adobe Audition or MATLAB.

You may post the question on the project files to dsprelated.com. The link you showed e2e.ti.com/.../12454 seemed have a lot of info though.

Regards,
Garrett

I tried using microphones and speaker having 3.5 mm jacks but I cannot hear any output.

Next I tried the same project using different support files which are :
c6x.h
c6xdsk.h
c6xinterrupts.h
dsk6713.h
dsk6713_aic23.h
C6713dskinit.h
rts6700.lib
csl6713.lib
dsk6713bsl.lib
C6713dskinit.c
nlms_adfilt.c
Vectors_intr.asm
C6xdsk.cmd
nlms.gel

with the following build options :
compiler --> basic --> target version --> c671x(-mv6710)
compiler --> advanced --> memory models --> Far(--mem_model:data=far)
compiler --> preprocessor --> Include Search path --> (give address where all support files stored)
compiler --> preprocessor --> Pre define symbol(-d) : CHIP_6713
linker --> basic --> library Search Path --> (gave address where all support files stored)
linker --> basic --> include libraries(-l) --> rts6700.lib;dsk6713bsl.lib;csl6713.lib
linker --> advanced --> uncheck the Warn about the output sections (-w) checkbox.
linker --> output module --> Relocatable Executable (-ar). ///// (This was Not done Earlier.)

Then I build the program.The build was successful with following warning

undefined first referenced
symbol in file
--------- ----------------
_inputsource C:\CCStudio_v3.1\MyProjects\Echo cancellation\ec3\Debug\c6713dskinit.obj
>> warning: output file './Debug/ec3.out' is not executable

Build Complete,
0 Errors, 1 Warnings, 0 Remarks.

Queries are :
Why this warning has occurred?

This build is successful with 0 warnings when I make the following change in build options :
linker --> output module --> Relocatable Non-Executable (-r).
and the build is having 2 errors when the output module is set to absolute executable(-a).

What difference it makes when I change the output module (in linker tab in build options) to its different values like absolute Executable or Relocatable Executable or relocatable non- executable?

With output module set to relocatable executable I am getting the same output when output_type is 1 or 2 or 3 or 4 (i.e there is no change in output) ?Whats the problem now? Further when the execution is stopped using Debug --> Halt then also the output is not stopped (I am getting output even if the program execution is halted)? Whats the reason for this?

Can you please Execute the code for me and check the errors?

>>undefined first referenced
>>symbol in file
--------- ----------------
>>_inputsource C:\CCStudio_v3.1\MyProjects\Echo cancellation\ec3\Debug\c6713dskinit.obj

You need resolve the undefined symbol _inputsource.

For details of the linker options, please refer to the document TMS320C6000 Assembly Language Tools User's Guide, SPRU186W (www.ti.com/lit/ug/spru186w/spru186w.pdf ), section:
7.4.2 Relocation Capabilities (--absolute_exe and --relocatable Options)
7.4.2.1 Producing an Absolute Output Module (--absolute_exe option)

Regards,
Garrett

Sir can you please execute this program for me and help me figure out the problem? or where i am going wrong.
here is a folder with all the support files and source files :drive.google.com/open
I am refering to the thesis : www.dsprelated.com/.../65.php
I am also refering to this thread on forum : e2e.ti.com/.../12454

Please try to execute this program for me and thus you we will be able to understand my doubts more clearly