zephyr

History

Pavel Hübner 104714394f kernel: Introduce K_MEM_SLAB_DEFINE_STATIC As the already existing macro K_MEM_SLAB_DEFINE results in two variable definitions, the preceding static modifier leads to a seemingly working solution, though linkage conflicts will occur when the same memory slab name is used across multiple modules. The new K_MEM_SLAB_DEFINE_STATIC macro duplicates the functionality of K_MEM_SLAB_DEFINE with the difference that the static keywords are internally prepended before both variable definitions. The implementation has been tested on my Zephyr project (the build issue faded out). The documentation has been updated altogether with all incorrect occurences of static K_MEM_SLAB_DEFINE. Signed-off-by: Pavel Hübner <pavel.hubner@hardwario.com>		2021-11-07 05:36:48 -05:00
..
boards	…
src	kernel: Introduce K_MEM_SLAB_DEFINE_STATIC	2021-11-07 05:36:48 -05:00
CMakeLists.txt	…
README.rst	…
prj.conf	…
sample.yaml	…

README.rst

.. _dmic_sample:

DMIC Sample
###########

Overview
********

This is a very simple application intended to show how to use the 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 :ref:`nrf52840dk_nrf52840` (nrf52840dk_nrf52840)
and :ref:`nrf5340dk_nrf5340` (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: