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DO NOT MERGE - synthio/audiopwmio-esp32s2-funhouse #39

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DO NOT MERGE - synthio/audiopwmio-esp32s2-funhouse #39

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202fcfe
espressif: add audiopwmio.PWMAudioOut for the ESP32-S2
tyeth Oct 23, 2026
1f6a9dd
espressif/audiopwmio: keep all ISR state in internal RAM
tyeth Oct 23, 2026
b356231
synthio: stop MidiTrack treating every 0xF. byte as End of Track
tyeth Oct 23, 2026
f7b0ce9
synthio: support running status in MidiTrack
tyeth Oct 23, 2026
760f02a
synthio: treat a Note On of velocity 0 as a Note Off in MidiTrack
tyeth Oct 23, 2026
22fd154
synthio: keep MidiTrack's timing accurate for long delays
tyeth Oct 23, 2026
68c4509
synthio: follow the MIDI file's tempo map in MidiTrack
tyeth Oct 23, 2026
c8554c8
ci_fetch_deps: fetch lib/mp3 and extmod/ulab for zephyr-cp
tyeth Oct 23, 2026
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1 change: 1 addition & 0 deletions ports/espressif/Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -123,6 +123,7 @@ INC += \
-isystem esp-idf/components/esp_hal_i2s/include \
-isystem esp-idf/components/esp_hal_i2s/$(IDF_TARGET)/include \
-isystem esp-idf/components/esp_hal_ledc/include \
-isystem esp-idf/components/esp_hal_ledc/$(IDF_TARGET)/include \
-isystem esp-idf/components/esp_hal_pcnt/include \
-isystem esp-idf/components/esp_hal_rmt/include \
-isystem esp-idf/components/esp_hal_rmt/$(IDF_TARGET)/include \
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6 changes: 6 additions & 0 deletions ports/espressif/background.c
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Expand Up @@ -8,6 +8,9 @@
#include "supervisor/filesystem.h"
#include "supervisor/port.h"
#include "supervisor/shared/stack.h"
#if CIRCUITPY_AUDIOPWMIO
#include "common-hal/audiopwmio/PWMAudioOut.h"
#endif
#if CIRCUITPY_USB_HOST
#include "supervisor/usb.h"
#include "tusb.h"
Expand All @@ -28,6 +31,9 @@ void port_background_tick(void) {
}

void port_background_task(void) {
#if CIRCUITPY_AUDIOPWMIO
audiopwmout_background();
#endif
}

void port_start_background_tick(void) {
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