Bluetooth samples: unicast audio: Improve documentation

With examples of how to build for several boards

Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>

samples/bluetooth/unicast_audio_client/README.rst

@@ -9,6 +9,10 @@ Overview
 Application demonstrating the LE Audio unicast client functionality. Scans for and
 connects to a LE Audio unicast server and establishes an audio stream.
 
+This sample can be found under
+:zephyr_file:`samples/bluetooth/unicast_audio_client` in the Zephyr tree.
+
+Check the :ref:`bluetooth samples section <bluetooth-samples>` for general information.
 
 Requirements
 ************
@@ -18,9 +22,62 @@ Requirements
 
 Building and Running
 ********************
-This sample can be found under
-:zephyr_file:`samples/bluetooth/unicast_audio_client` in the Zephyr tree.
-Use `-DEXTRA_CONF_FILE=overlay-bt_ll_sw_split.conf` to enable required ISO
-feature support in Zephyr Bluetooth Controller on supported boards.
 
-See :ref:`bluetooth samples section <bluetooth-samples>` for details.
+When building targeting an nrf52 series board with the Zephyr Bluetooth Controller,
+use `-DOVERLAY_CONFIG=overlay-bt_ll_sw_split.conf` to enable the required ISO
+feature support.
+
+Building for an nrf52840dk
+--------------------------
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/bluetooth/unicast_audio_client/
+   :board: nrf52840dk_nrf52840
+   :goals: build
+   :gen-args: -DOVERLAY_CONFIG=overlay-bt_ll_sw_split.conf
+
+Building for an nrf5340dk
+-------------------------
+
+You can build both the application core image and an appropriate controller image for the network
+core with:
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/bluetooth/unicast_audio_client/
+   :board: nrf5340dk_nrf5340_cpuapp
+   :goals: build
+   :west-args: --sysbuild
+
+If you prefer to only build the application core image, you can do so by doing instead:
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/bluetooth/unicast_audio_server/
+   :board: nrf5340dk_nrf5340_cpuapp
+   :goals: build
+
+In that case you can pair this application core image with the
+:ref:`hci_ipc sample <bluetooth-hci-ipc-sample>`
+:zephyr_file:`samples/bluetooth/hci_ipc/nrf5340_cpunet_iso-bt_ll_sw_split.conf` configuration.
+
+Building for a simulated nrf52_bsim
+-----------------------------------
+
+Similarly to how you would for real HW, you can do:
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/bluetooth/unicast_audio_client/
+   :board: nrf52_bsim
+   :goals: build
+   :gen-args: -DOVERLAY_CONFIG=overlay-bt_ll_sw_split.conf
+
+Note this will produce a Linux executable in `./build/zephyr/zephyr.exe`.
+For more information, check :ref:`this board documentation <nrf52_bsim>`.
+
+Building for a simulated nrf5340bsim
+------------------------------------
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/bluetooth/unicast_audio_client/
+   :board: nrf5340bsim_nrf5340_cpuapp
+   :goals: build
+   :west-args: --sysbuild

samples/bluetooth/unicast_audio_server/README.rst

@@ -9,6 +9,11 @@ Overview
 Application demonstrating the LE Audio unicast server functionality.
 Starts advertising and awaits connection from a LE Audio unicast client.
 
+This sample can be found under
+:zephyr_file:`samples/bluetooth/unicast_audio_server` in the Zephyr tree.
+
+Check the :ref:`bluetooth samples section <bluetooth-samples>` for general information.
+
 Requirements
 ************
 
@@ -17,9 +22,62 @@ Requirements
 
 Building and Running
 ********************
-This sample can be found under
-:zephyr_file:`samples/bluetooth/unicast_audio_server` in the Zephyr tree.
-Use `-DEXTRA_CONF_FILE=overlay-bt_ll_sw_split.conf` to enable required ISO
-feature support in Zephyr Bluetooth Controller on supported boards.
 
-See :ref:`bluetooth samples section <bluetooth-samples>` for details.
+When building targeting an nrf52 series board with the Zephyr Bluetooth Controller,
+use `-DOVERLAY_CONFIG=overlay-bt_ll_sw_split.conf` to enable the required ISO
+feature support.
+
+Building for an nrf52840dk
+--------------------------
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/bluetooth/unicast_audio_server/
+   :board: nrf52840dk_nrf52840
+   :goals: build
+   :gen-args: -DOVERLAY_CONFIG=overlay-bt_ll_sw_split.conf
+
+Building for an nrf5340dk
+-------------------------
+
+You can build both the application core image and an appropriate controller image for the network
+core with:
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/bluetooth/unicast_audio_server/
+   :board: nrf5340dk_nrf5340_cpuapp
+   :goals: build
+   :west-args: --sysbuild
+
+If you prefer to only build the application core image, you can do so by doing instead:
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/bluetooth/unicast_audio_server/
+   :board: nrf5340dk_nrf5340_cpuapp
+   :goals: build
+
+In that case you can pair this application core image with the
+:ref:`hci_ipc sample <bluetooth-hci-ipc-sample>`
+:zephyr_file:`samples/bluetooth/hci_ipc/nrf5340_cpunet_iso-bt_ll_sw_split.conf` configuration.
+
+Building for a simulated nrf52_bsim
+-----------------------------------
+
+Similarly to how you would for real HW, you can do:
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/bluetooth/unicast_audio_server/
+   :board: nrf52_bsim
+   :goals: build
+   :gen-args: -DOVERLAY_CONFIG=overlay-bt_ll_sw_split.conf
+
+Note this will produce a Linux executable in `./build/zephyr/zephyr.exe`.
+For more information, check :ref:`this board documentation <nrf52_bsim>`.
+
+Building for a simulated nrf5340bsim
+------------------------------------
+
+.. zephyr-app-commands::
+   :zephyr-app: samples/bluetooth/unicast_audio_server/
+   :board: nrf5340bsim_nrf5340_cpuapp
+   :goals: build
+   :west-args: --sysbuild