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docs/boards/raspberrypi-4b: Document updated NXDoom config

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Documents the nxdoom configuration update that now includes RTTL music
over the audio jack.

Signed-off-by: Matteo Golin <matteo.golin@gmail.com>
This commit is contained in:
Matteo Golin 2026-07-24 15:26:05 -04:00 • committed by Xiang Xiao
parent 4f9224c5a1
commit 326fe4fd41
1 changed files with 15 additions and 0 deletions
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Documentation/platforms/arm64/bcm2711/boards/raspberrypi-4b/index.rst
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@ -298,6 +298,11 @@ nxdoom
This configuration combines features from the ``sd`` and ``fb`` configurations,
and includes the NuttX port of DOOM, :doc:`/applications/games/nxdoom/index`.
This configuration for DOOM also plays the DOOM theme song over the audio jack
using an RTTL adaptation of the theme song. See
:doc:`/applications/audioutils/rtttl-c/index`. Right now, other songs are
ignored until better RTTL integration can be made.
Place the WAD file you wish to play on the SD card partition with the NuttX
kernel and other files. You can then play via
@ -314,6 +319,16 @@ kernel and other files. You can then play via
window. This would need DMA-based rendering or double-buffered rendering to
improve most likely. Patches also welcome!
.. warning::
The RTTL audio over the headphone jack is quite loud. Be careful putting
earbuds in until you assess the volume level.
.. note::
Due to the SD card support's current implementation, loading DOOM initially
is quite slow.
lvgl
----