micheleandCursor
cc4a03168e
Decouple the SigmaStudio RAM download from compiled-in adau1701_program.c: DRAD v1 blobs in the dsp partition with embedded fallback, POST /api/dsp/program, and host-tested blob parse/serialize helpers. Co-authored-by: Cursor <cursoragent@cursor.com>
DigiRadio — companion-chip firmware assets
Binary and SigmaStudio exports loaded by the ESP32 at every boot (fw 0.8.3).
| Directory | Chip | In git? | Loaded by |
|---|---|---|---|
ADAU1701-Firmware/ |
ADAU1701 SigmaDSP | Yes (headers) | Adau1701Driver — RAM program every boot |
Si4684-Firmware/ |
Si4684 DAB+/FM | README only | Si4684Driver — HOST_LOAD embedded blobs |
Before first device build
Si4684 application images are proprietary and gitignored. Populate locally:
cd Software
python3 tools/fetch_si4684_firmware.py --dab-only
python3 tools/fetch_si4684_firmware.py --si46xx-dir /path/to/si46xx_firmware
python3 tools/check_si4684_blobs.py
ls Firmware/Si4684-Firmware/*.bin # expect 3 files
Without blobs, idf.py build fails at embed/link time.
Full procurement and legal notes: Si4684-Firmware/README.md.
Si4684 blobs
| File | Role |
|---|---|
rom_patch_016.bin |
ROM patch (HOST_LOAD before main image) |
dab_firmware.bin |
DAB+ application (PE5PVB / Skyworks) |
fm_firmware.bin |
FM application (Skyworks eval or community source) |
Boot sequence: AN649 — POWER_UP → LOAD_INIT → HOST_LOAD(patch) → LOAD_INIT → HOST_LOAD(image) → BOOT.
ADAU1701 export
SigmaStudio project DigiRadio — exported headers replayed over I2C on every
boot (no self-boot EEPROM). Runtime EQ/mixer/enhancements via safeload and the
Web UI Audio tab (/api/audio/*).
Details: ADAU1701-Firmware/README.md · manual:
docs/manual/ch-adau1701.tex, docs/manual/ch-sigmastudio.tex.
Security note
User settings (Wi-Fi, presets, audio profiles) live in encrypted NVS, not in
this folder. See docs/security-flash-nvs.md.