How to access ARM DSP functionality using Zephyr on Thingy52/pca20020?

Question

Hi, 
 
 I'm trying to do some on device FFT (and more) of data from accelerometer and microphone and would like to use the CMSIS-DSP functionality. I didn't find any zephyr sample code anywhere that utilizes the DSP functionality so would like to know if someone has tried it or have an opinion on an approach? 
 
 br 
 Lars

Håkon Alseth · Accepted Answer

Hi, 
 
 Do you mean the CMSIS-DSP software library , or the basic support for doing DSP operations? The latter is by-default supported as zephyr supports Cortex M4F, but the CMSIS-DSP library must be manually added to either your project or into the <zephyr>/ext/ part of zephyr, if approved by the community. 
 
 Kind regards, 
 Håkon

How to access ARM DSP functionality using Zephyr on Thingy52/pca20020?

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