tinyusb.git/examples/device/audio_test_freertos/src/main.c, branch claude/audio-fifo-primingUnnamed repository; edit this file 'description' to name the repository.http://cgit.235523.xyz/tinyusb.git/atom/examples/device/audio_test_freertos/src/main.c?h=claude%2Faudio-fifo-priming2026-08-28T19:47:14Zaudio_test_freertos: prime and hold the EP IN FIFO at its threshold2026-08-28T19:47:14Zhathachthach@tinyusb.org2026-08-28T18:08:56Zurn:sha1:c74b2904d91e59d533a8a63802aad6e34185786f
The 1 ms producer tick and host SOF are independent clocks. Writing one
frame per tick from stream open leaves the FIFO within a frame of empty
for ~180 ms (flow control climbs ~1.5 B/ms), and on underrun the driver
replays the previous packet's tail (hfp HIL: 'expected 8702, got 8696' -
exactly one HS packet of 6 samples back). Hold the FIFO at the driver's
own flow-control threshold instead: primed at open, topped up per tick,
each write still requiring a full frame of room so the overwritable FIFO
never drops samples. Filling above threshold is deliberately avoided -
it parks flow control at max-size packets (48.73 kHz) and overruns the
host capture. Verified by simulating the driver's control law over the
2 s capture: zero underruns at +/-400 us jitter vs 3 events before.
The driver-side half (audiod_tx_xfer_isr ignoring a short tu_fifo_read_n
and submitting stale bytes) is docs/superpowers/followup/pr3851-audiod-
short-fifo-read.md, for its own PR.
Update UAC2 naming2025-09-29T08:00:39ZHiFiPhileadmin@hifiphile.com2025-09-27T12:58:08Zurn:sha1:78121a8d3f273420f8a2798364c2dd2fb9bb700f
Signed-off-by: HiFiPhile <admin@hifiphile.com>
Fix board_init_after_tusb2025-09-17T21:44:01ZHiFiPhileadmin@hifiphile.com2025-09-17T21:19:35Zurn:sha1:be9409bfa738f00dc70d5e5bb99c0d9d61b69a34
Signed-off-by: HiFiPhile <admin@hifiphile.com>
fix warnings, update docs2025-09-12T04:27:31Zhathachthach@tinyusb.org2025-09-12T04:27:31Zurn:sha1:ba36df6233cd1bd09f383818f10c1ccda7b9efb4fix tud_audio_set_itf_close_EP_cb() typo2025-08-02T16:23:20Zhathachthach@tinyusb.org2025-08-02T16:23:20Zurn:sha1:d9aa4c6f6184eacafb534bf462d7a90ca71aeac9Merge remote-tracking branch 'origin/master' into xfer_isr2025-07-08T03:09:24Zhathachthach@tinyusb.org2025-07-08T03:09:24Zurn:sha1:a56f55c10bea2ce0d38de6a04edae41e6c814b9f
# Conflicts:
# examples/device/audio_4_channel_mic_freertos/src/main.c
# examples/device/audio_test_freertos/src/main.c
# src/class/audio/audio_device.c
update esp build, replace TUSB_MCU_VENDOR_ESPRESSIF by ESP_PLATFORM2025-07-02T08:32:12Zhathachthach@tinyusb.org2025-07-02T08:32:12Zurn:sha1:0388700ad7c0fc8565457a56d7e7bd5744ac0d1daudio: update examples2025-06-14T20:46:52ZHiFiPhileadmin@hifiphile.com2025-06-14T17:37:10Zurn:sha1:545690c83435fc9e972a65a4e46539c88f2a2853
Signed-off-by: HiFiPhile <admin@hifiphile.com>
move core init code to dwc2 common. update/correct build for esppressif2024-10-15T10:55:24Zhathachthach@tinyusb.org2024-10-15T10:55:24Zurn:sha1:4012e150757b517620465d93a22b0787c6400c5dchange the tusb_rhport_init_t struct, exclude the rhport to make API more consistent2024-10-14T11:27:52Zhathachthach@tinyusb.org2024-10-14T11:27:52Zurn:sha1:1f18be93db39dbc57bbf34f982dbe07e209a2ae3