How to work with DSP filter implementation in nRF connect SDK?

[Gops]

I am using a nRF52840 dongle and want to filter ADC raw data. I have downloaded the CMSIS 5 DSP package.

And tried to include a copy of an example (arm_fft_bin_example_f32) in to a project. Also I have included necessary other files to the project as in the picture. I have done this as any custom library should be added to a project.

I get this error of undefined reference to variable type.

In the prj.conf file I have only added one command.

I wan to know that whether is there any other process to implement DSP in to a zephyr based projects?

Or is there any step missing in this approach?

Or Where can we find reference to these types of variable?

Thank you.

[Joakim Jakobsen]

Hi.

Which version of SEGGER Embedded studio are you using?

Br,
Joakim

[Gops]

Hi Joakim.

I had downloaded Segger Embedded Studio for ARM v5.42(64 bit).
I open the IDE from nRF connet's Tool chain manager.

And I see the version in the IDE as Segger Embedded Studio For ARM (Nordic Edition) V5.34a(64 bit).

I did not notice this thing.

So If I open the IDE from desktop  icon, it shows V5.42. Is the version mismatching a problem by the way?

Thank you...

[Joakim Jakobsen]

Sorry about the delay. 

Have you made any progress on the issue?

Unsure if the version mismatch should be a problem here, but I will check up on this and get back to you. 

Br, 
Joakim