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| author | Drashna Jaelre <drashna@live.com> | 2018-12-03 16:42:57 -0800 |
|---|---|---|
| committer | MechMerlin <30334081+mechmerlin@users.noreply.github.com> | 2018-12-03 16:42:57 -0800 |
| commit | 3a0f3a5bd0aff18934431ad471b1db390c3b33d1 (patch) | |
| tree | 6ee8385d3f0b95b1448d043801ff612e012856bc | |
| parent | da1afe152af5a6dfb5c0bb28d86d34940162f960 (diff) | |
| download | qmk_firmware-3a0f3a5bd0aff18934431ad471b1db390c3b33d1.tar.gz qmk_firmware-3a0f3a5bd0aff18934431ad471b1db390c3b33d1.zip | |
Make ARM Audio max volume configurable (#4540)
* Make ARM Audio max volume configurable
* Update docs/feature_audio.md
Co-Authored-By: drashna <drashna@live.com>
* Update docs/feature_audio.md
Co-Authored-By: drashna <drashna@live.com>
| -rw-r--r-- | docs/feature_audio.md | 7 | ||||
| -rw-r--r-- | quantum/audio/audio_arm.c | 2 |
2 files changed, 9 insertions, 0 deletions
diff --git a/docs/feature_audio.md b/docs/feature_audio.md index 82e0ed9503..a39c456873 100644 --- a/docs/feature_audio.md +++ b/docs/feature_audio.md @@ -65,6 +65,13 @@ The available keycodes for audio are: * `AU_OFF` - Turn audio mode off * `AU_TOG` - Toggle audio mode +## ARM Audio Volume + +For ARM devices, you can adjust the DAC sample values. If your board is too loud for you or your coworkers, you can set the max using `DAC_SAMPLE_MAX` in your `config.h`: + +```c +#define DAC_SAMPLE_MAX 65535U +``` ## Music Mode diff --git a/quantum/audio/audio_arm.c b/quantum/audio/audio_arm.c index 18e8a8c66d..989f7a64be 100644 --- a/quantum/audio/audio_arm.c +++ b/quantum/audio/audio_arm.c @@ -80,7 +80,9 @@ float startup_song[][2] = STARTUP_SONG; static void gpt_cb8(GPTDriver *gptp); #define DAC_BUFFER_SIZE 720 +#ifndef DAC_SAMPLE_MAX #define DAC_SAMPLE_MAX 65535U +#endif #define START_CHANNEL_1() gptStart(&GPTD6, &gpt6cfg1); \ gptStartContinuous(&GPTD6, 2U) |