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42 lines
2.3 KiB
Markdown
42 lines
2.3 KiB
Markdown
# INTEGRATION MEGAPLAN — AutoFilm-ESP32 S3 Hardware Integration
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Audience: coding agent. One phase = one session. Do not start the next phase in the same session.
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## Summary
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This megaplan drives the hardware integration for the ESP32-S3 (JC4827W543) board, activating the stepper motor, DS18B20 temperature sensor, and I2S speaker using conflict-free, header-available GPIOs. To ensure success, these changes have been broken down from a single monolithic phase into a sequence of safe, isolated phases.
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## Protocol (every session)
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1. Ensure you are on the appropriate integration branch off `develop`.
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2. Read only: `AGENTS.md`, this file (status table), **the assigned phase file**. Open other docs only if the phase `READ:` list says so.
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3. Execute `IN` only. Honour `OUT` and `FORBIDDEN`.
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4. Run `VERIFY` exactly. Do not push if any verify item fails.
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5. Commits: messages listed in the phase. Imperative. No secret tokens.
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6. Push to origin. PR target is `develop`, not `main`.
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7. Set phase `STATUS:` to `DONE` in the phase file **and** this table. One-line `Notes` if you diverged (API name only — do not silently change behaviour).
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If blocked: stop, commit nothing broken, write `BLOCKED:` at top of the phase file with the exact error.
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## Frozen constraints (never reinterpret)
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- The motor EN/STEP/DIR, DS18B20, and I2S audio pins for the JC4827W543 are strictly defined in this plan and the pin audit doc.
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- **Constraints that eliminate S3 pins:**
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- QSPI display: 45, 47, 21, 48, 40, 39 + BL 1 — consumed
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- GT911: SDA 8, SCL 4, INT 3, RST 38 — consumed
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- Speaker I2S: 2 (LRCLK), 41 (DIN), 42 (BCLK) — consumed by onboard amp
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- TF slot: 10–13; USB: 19/20; UART0: 43/44; BOOT+LCD_TE: 0
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- Octal PSRAM: 33–37 off-limits
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- GPIO46 is INPUT-ONLY on ESP32-S3 — excluded from outputs entirely
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- UI never blocks on hardware operations (motor, OneWire, I2S).
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- Watchdog stays **on**. No `vTaskDelete` of long-lived workers.
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## Status
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| ID | File | Session goal | STATUS |
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| --- | --- | --- | --- |
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| I01 | `integration/I01-board-configs.md` | Board pin allocations & accessors | DONE |
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| I02 | `integration/I02-temp-fix.md` | Temp HAL shared & starvation fix | DONE |
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| I03 | `integration/I03-motor-hal.md` | Motor HAL shared across boards | DONE |
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| I04 | `integration/I04-audio-i2s.md` | I2S audio implementation for S3 | DONE |
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