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Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.
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zephyr/samples/drivers/audio/dmic
Karol Lasończyk 061036f9e3
tests: samples: Extend support for nRF54LM20A 		2 weeks ago
..
boards tests: samples: Extend support for nRF54LM20A 2 weeks ago
src kernel: Modify the signature of k_mem_slab_free() 2 years ago
CMakeLists.txt cmake: Update cmake_minimum_required to 3.20.0 3 years ago
README.rst doc: boards: nordic: Adopt zephyr:board directives 3 months ago
prj.conf
…
sample.yaml drivers: audio: dmic: Add Apollo510 PDM driver for DMIC. 2 weeks ago

README.rst 

.. zephyr:code-sample:: dmic
   :name: Digital Microphone (DMIC)
   :relevant-api: audio_dmic_interface

   Perform PDM transfers using different configurations.

Overview
********

This is a very simple application intended to show how to use the :ref:`Audio DMIC
API <audio_dmic_api>` and also to be an aid in developing drivers to implement this API.
It performs two PDM transfers with different configurations (using one channel
and two channels) but does not in any way process the received audio data.

Requirements
************

The device to be used by the sample is specified by defining a devicetree node
label named ``dmic_dev``.
The sample has been tested on :zephyr:board:`nrf52840dk` (nrf52840dk/nrf52840)
and :zephyr:board:`nrf5340dk` (nrf5340dk/nrf5340/cpuapp), and provides overlay
files for both of these boards.

Building and Running
********************

The code can be found in :zephyr_file:`samples/drivers/audio/dmic`.

To build and flash the application:

.. zephyr-app-commands::
   :zephyr-app: samples/drivers/audio/dmic
   :board: nrf52840dk/nrf52840
   :goals: build flash
   :compact: