Hello Jerry,
You can install Keil to run the DSP examples,
or if you want use MCUXpresso IDE, please refer to the below DOC to use CMSIS-DSP,
it introduce the steps on kds, while it is the same with MCUXpresso IDE.
Adding CMSIS-DSP Library to a KSDK 2.x project in Kinetis Design Studio
Hope it helps
Have a great day,
TIC
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