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2364878_en-US

2364878_en-US

Accessing the PDM Mics of a MIMXRT1170-EVKB

Hello,

I'm working with a MIMXRT1170-EVKB and I'm quite new to working with Zephyr. It comes with 3 PDM Mics that are connected to the m7. It seems that the PDM controller of the m7 is not defined inside the Devicetree.

I'm a bit confused about the overall driver structure to use in Zephyr and I'm also new to writing Devicetree overlays. But my understanding is, that I need to define the PDM controller/DMIC and the corresponding pinmux/pinctrl settings in my board overlay file. I guess this would be compatible to the MICFIL driver ?

Has anyone experience in working with the PDM DMICs and might be able to give me some pointers if my understanding is correct or how to implement the PDM Mics?

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2 weeks ago
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