micheleandClaude Sonnet 5
3a58d33aad
Extend the FM-only ANTCAP antenna-varactor override to DAB, mirroring the existing mechanism end to end (driver, tuner, service, EEPROM storage, HTTP API). Live sweep on real hardware found no ANTCAP value beating auto-tune on the ensembles tested, so DAB stays on auto-tune by default. Also fix BT1035 boot: the module's real boot banner doesn't appear until ~18-24s after RESET# releases, not the 3.5s previously waited; add a 2-attempt retry and a baud-rate probe fallback for diagnostics. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
149 lines
6.7 KiB
Markdown
149 lines
6.7 KiB
Markdown
# TODO — DigiRadio firmware
|
||
|
||
Agent task list and hardware-in-the-loop backlog. Working directory for all
|
||
commands is `Software/`.
|
||
|
||
**Current firmware:** `0.9.0` — everything in 0.8.5, plus: Si4684 RF
|
||
blackout root-caused and fixed (real FM/DAB lock and audio on real
|
||
hardware), DAB service list fixed (two rounds), FM ANTCAP antenna
|
||
calibration persisted to EEPROM, generic ADAU1701 parameter API, phone PCM
|
||
streaming, BLE Wi-Fi provisioning, full FM band scan, BT1035 boot retry.
|
||
See "Post-0.8.5 hardware-in-the-loop findings" below and
|
||
`docs/si4684-rf-investigation-report.md` for the full story.
|
||
|
||
**Before writing code, read `AGENTS.md`, `.cursor/rules/`, and
|
||
`instructions.md`.** Definition of Done: Apache header, doc blocks,
|
||
`doxygen Doxyfile` exits 0, host tests pass, `check-manual-sync.py` and
|
||
`check_si4684_blobs.py` pass, no plaintext secrets.
|
||
|
||
---
|
||
|
||
## Completed agent tasks (T1–T12, fw 0.7.1–0.8.5)
|
||
|
||
| Task | Version | Summary |
|
||
|------|---------|---------|
|
||
| **T1** | 0.7.1 | Doxygen warnings cleared |
|
||
| **T2** | 0.7.1 | CI workflow (host tests, Doxygen, manual sync) |
|
||
| **T3** | 0.7.2 | Preset reorder API/UI, DAB playing ids in status |
|
||
| **T4** | 0.8.0 | RDS/DLS broadcast metadata |
|
||
| **T5** | 0.8.1 | `IntegrationService` — startup, preset recall, last-preset NVS |
|
||
| **T6** | 0.8.2 | Tabbed configuration Web UI (REST coverage) |
|
||
| **T7** | 0.8.2 | Si4684 blob policy — gitignore, docs, `check_si4684_blobs.py` |
|
||
| **T8** | 0.8.3 | NVS + flash encryption — `initEncryptedStorage`, security docs |
|
||
| **T9** | 0.8.4 | Dual-OTA partition table + `dsp` blob slot, rollback Kconfig |
|
||
| **T10** | 0.8.4 | EEPROM EUI-48 identity — SoftAP/BT/hostname/serial |
|
||
| **T11** | 0.8.4 | Updatable ADAU1701 program — `POST /api/dsp/program`, DRAD blob |
|
||
| **T12** | 0.8.4 | ESP32 OTA — `POST /api/system/ota`, rollback confirm on boot |
|
||
|
||
**0.8.5** (hardware/doc alignment): BT1035 boot uses `AT+AUXCFG=3` +
|
||
`AT+I2SCFG=67` (I2S from ADAU1701, not Line-In); I2C pull-ups R1/R16
|
||
confirmed 2\,kΩ; `Hardware/DATASHEET/` bundle + manual cross-refs.
|
||
|
||
Also landed (not numbered): BT1035 pairing (`BluetoothService`), station presets
|
||
(fw 0.7.0), companion-chip boot (Slice 3), ADAU1701 runtime (Slice 5).
|
||
|
||
---
|
||
|
||
## P4 — Hardware-in-the-loop (when PCB arrives)
|
||
|
||
Manual validation only — does not block host CI.
|
||
|
||
### H1. Encrypted NVS boot path
|
||
Follow [`docs/security-flash-nvs.md`](security-flash-nvs.md): first flash with
|
||
`idf.py erase-flash flash`, verify boot logs, Wi-Fi provisioning survives
|
||
reboot, presets and `last_preset` survive power cycle.
|
||
|
||
### H2. End-to-end listening
|
||
Si4684 DAB/FM tune, ADAU1701 profile apply, BT1035 A2DP to headphones,
|
||
now-playing metadata in UI and `/api/tuner/status`.
|
||
|
||
### H3. OTA and DSP program update (on hardware)
|
||
Push a known-good `.bin` via `POST /api/system/ota`, confirm rollback after a
|
||
deliberately bad image. Upload a DRAD blob via `POST /api/dsp/program` and
|
||
verify ADAU replay after reboot.
|
||
|
||
### H4. Production flash encryption (optional)
|
||
After H1 passes, trial build with `sdkconfig.defaults.production` overlay on
|
||
a sacrificial unit; confirm RELEASE mode policy before shipping.
|
||
|
||
### H5. Si4684 FM/DAB no-lock — RESOLVED, was firmware after all
|
||
**Superseded verdict (2026-08-13): blob OK → suspected U6 RF ground, PCBWay
|
||
dispute opened.** That verdict was wrong. The actual cause was
|
||
`writeCommand()`'s ARG1 byte being mis-offset across FM/DAB tune, seek, and
|
||
several status/ack commands — the chip always answered correctly, so every
|
||
signal pointed at hardware, but it never actually tuned. Fixed; real FM
|
||
lock, real DAB ensemble lock, real audio confirmed live on the same board.
|
||
No PCB rework was needed. Full investigation, the wrong initial verdict,
|
||
and the eventual root cause: [`docs/si4684-rf-investigation-report.md`](si4684-rf-investigation-report.md).
|
||
|
||
---
|
||
|
||
## Post-0.8.5 hardware-in-the-loop findings
|
||
|
||
The board arrived and testing against it (not just host tests) found real
|
||
bugs the host-testable core couldn't catch, since they live in
|
||
ESP-IDF-only drivers. Full detail and evidence in
|
||
[`docs/si4684-rf-investigation-report.md`](si4684-rf-investigation-report.md).
|
||
Short version:
|
||
|
||
- Si4684 total RF blackout (H5 above) — firmware bug, fixed.
|
||
- Si4684→ADAU1701 digital audio silence — `PIN_CONFIG_ENABLE` mutual
|
||
exclusion + `SerialInputRegister` polarity, fixed.
|
||
- DAB service list empty/garbled — response-parsing offset bugs (two
|
||
rounds) plus `DAB_EVENT_INTERRUPT_SOURCE` (0xB300) never configured,
|
||
fixed.
|
||
- FM front-end auto-tune measurably suboptimal on this board's actual
|
||
matching network — ANTCAP calibration swept and persisted to EEPROM,
|
||
`POST /api/tuner/calibrate-antenna`.
|
||
- BT1035 total boot silence — root cause found and fixed (2026-08-20):
|
||
the module's spontaneous boot banner (`+VER=...`, `+DEVSTAT=1`) doesn't
|
||
appear until ~18-24s after RESET# releases (full BT stack init, not
|
||
just the internal regulator), but the boot code only waited 3.5s before
|
||
cutting power and restarting — so every attempt, in every prior session,
|
||
cut power before the module could ever finish booting even once. Power
|
||
rails (VBAT_IN/SYS_CTRL/VDD_IO/1.8V_OUT) and TX/RX wiring were all
|
||
independently verified correct with a multimeter first — the module and
|
||
PCB were never at fault. Fixed by waiting up to 25s for the banner
|
||
(`kBootBannerWaitMs`); boot now succeeds on the first attempt.
|
||
- **Still open**: intermittent multi-second HTTP unresponsiveness under
|
||
load; DAB signal quality still antenna-limited; 24 KB `nvs` partition
|
||
may be undersized (`saveProfile()` `store_failed` seen intermittently,
|
||
error code never captured).
|
||
|
||
---
|
||
|
||
## Open firmware polish (non-blocking)
|
||
|
||
Done in fw 0.8.5 unless noted:
|
||
|
||
- BT1035 boot — I2S slave init (`AT+AUXCFG=3`, `AT+I2SCFG=67`) per PCB routing (0.8.5).
|
||
- FM seek down — `POST /api/tuner/seek` with `{"direction":"down"}` (0.8.4).
|
||
- BT1035 — query/set name, paired list (`AT+PLIST`), auto-reconnect
|
||
(`AT+AUTOCONN`) per Feasycom BT1035 manual (0.8.4).
|
||
- Si4684 — `STOP_DIGITAL_SERVICE` (0x82) before FM band switch when DAB
|
||
audio is active; ensemble metrics remain via `DAB_DIGRAD_STATUS` in status (0.8.4).
|
||
|
||
---
|
||
|
||
## Quality gates (run from `Software/` before merge)
|
||
|
||
```bash
|
||
cmake -S components/core/test -B build-host && cmake --build build-host
|
||
ctest --test-dir build-host --output-on-failure
|
||
doxygen Doxyfile
|
||
python3 tools/check-manual-sync.py
|
||
python3 tools/check_si4684_blobs.py
|
||
```
|
||
|
||
After editing the web UI: `tools/gzip-www.sh`.
|
||
|
||
---
|
||
|
||
## Notes for the agent
|
||
|
||
- Extend existing patterns (`AudioProfile` / `IAudioProfileStore` shape).
|
||
- Never invent Si4684 opcodes — cite AN649.
|
||
- Never invent BT1035 AT strings — cite Feasycom BT1035 programming guide.
|
||
- One logical change per commit; 50/72 messages.
|
||
- Update `ch-classes.tex` / `ch-api.tex` when public API or HTTP changes.
|