feat: import LiquidCore15 docs from main branch

Replace local stub with !import from git.daelon.cloud/daelon/LiquidCore15
main branch docs/ (firmware, control, bringup, planning, refs chapters).
Remove superseded local telemetry-interface.md.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

docs/LiquidCore15/telemetry-interface.md

@@ -1,92 +0,0 @@
-# Telemetry Interface
-
-The LiquidCore15 firmware streams a continuous binary telemetry frame over **UART** and **UDP** at **100 Hz**, giving a host controller or operator GUI a real-time view of all monitored control variables.
-
----
-
-## Frame Format
-
-Every frame is exactly **63 bytes**:
-
-| Byte(s) | Field | Value |
-|---------|-------|-------|
-| `[0]` | Sync low | `0x55` |
-| `[1]` | Sync high | `0xAA` |
-| `[2]` | Length | `0x3A` (58 decimal = payload size) |
-| `[3..60]` | Payload | `TelemetryPayload_t` — 58 bytes, packed |
-| `[61]` | CRC low | CRC16-CCITT low byte |
-| `[62]` | CRC high | CRC16-CCITT high byte |
-
-Sync bytes form the little-endian word `0xA55A` — check both bytes before decoding.
-
-**CRC:** CRC16-CCITT (polynomial `0x1021`, init `0xFFFF`) computed over bytes `[2..60]` (59 bytes: length byte + full payload). No output inversion.
-
----
-
-## Payload Fields
-
-`TelemetryPayload_t` is `__attribute__((packed))`, 58 bytes. Field order is stable — the host decoder assumes this exact layout.
-
-| Offset | Type | Field | Description |
-|--------|------|-------|-------------|
-| 0 | `float` | `Vdc` | DC bus voltage (V) |
-| 4 | `float` | `Ia` | Phase A current (A) |
-| 8 | `float` | `Ib` | Phase B current (A) |
-| 12 | `float` | `Ic` | Phase C current (A) |
-| 16 | `float` | `Va` | Phase A grid voltage (V) |
-| 20 | `float` | `Vb` | Phase B grid voltage (V) |
-| 24 | `float` | `Vc` | Phase C grid voltage (V) |
-| 28 | `float` | `Id` | d-axis current feedback (A) |
-| 32 | `float` | `Iq` | q-axis current feedback (A) |
-| 36 | `float` | `Id_ref` | d-axis current reference (A) |
-| 40 | `float` | `Iq_ref` | q-axis current reference (A) |
-| 44 | `float` | `theta` | PLL grid angle (rad, 0 .. 2π) |
-| 48 | `float` | `omega` | PLL angular frequency (rad/s) |
-| 52 | `uint8_t` | `pll_locked` | `1` = locked, `0` = searching |
-| 53 | `uint8_t` | `mode` | FSM state (see below) |
-| 54 | `uint32_t` | `fault_flags` | Active fault bitmask (see below) |
-
-All floats are IEEE 754 single-precision, little-endian (Cortex-M native byte order).
-
-### `mode` — FSM State
-
-| Value | State |
-|-------|-------|
-| `0x00` | `FSM_INIT` |
-| `0x01` | `READY` |
-| `0x02` | `RUNNING` |
-| `0x03` | `FAULT` |
-
-### `fault_flags` — Fault Bitmask
-
-| Bit | Fault |
-|-----|-------|
-| 0 | Over-voltage (OV) |
-| 1 | Under-voltage (UV) |
-| 2 | Over-current (OC) |
-| 3 | Frequency high |
-| 4 | Frequency low |
-
----
-
-## Transmission
-
-**UART:** USART3 (`hcom_uart[COM1]`), 115200 baud, GPDMA1 Channel 0 (DMA mode).
-
-- Cadence: every 160th control tick → **100 Hz**.
-- If UART DMA is busy when a frame is ready, the frame is **dropped silently**. At 100 Hz × 63 bytes = 6 300 bytes/s versus 11 520 bytes/s line capacity, collision probability is low.
-- Double-buffering: two 63-byte buffers swap between fill and DMA-in-flight roles.
-
-**UDP:** The same 63-byte frame is forwarded to `eth_send_telem()` (implemented in `eth.c`) on every tick, independent of UART DMA state.
-
----
-
-## Integration Checklist
-
-- [ ] Open a 115200-baud serial connection to USART3 (or listen on the UDP socket).
-- [ ] Scan the byte stream for the two-byte sync sequence `0x55 0xAA`.
-- [ ] Read the next 61 bytes (length + payload + CRC).
-- [ ] Verify CRC16-CCITT over bytes `[2..60]`; discard frame on mismatch.
-- [ ] Deserialize `TelemetryPayload_t` in the field order above (little-endian floats).
-- [ ] Check `pll_locked` before using `theta` / `omega` for phase-sensitive calculations.
-- [ ] Check `fault_flags != 0` and handle `mode == 0x03` (FAULT) before commanding.

docs/index.md

@@ -6,11 +6,11 @@ Welcome to the documentation hub of Daelon Engineering UG.
 
 <div class="grid cards" markdown>
 
--   :material-chip: **[LiquidCore15](LiquidCore15/telemetry-interface.md)**
+-   :material-chip: **[LiquidCore15](liquidcore15/)**
 
-    Liquid-cooled compute core hardware.
+    15 kW SiC grid-tied inverter/charger firmware.
 
-    [:octicons-arrow-right-24: Documentation](LiquidCore15/telemetry-interface.md)
+    [:octicons-arrow-right-24: Documentation](liquidcore15/)
 
 -   :material-monitor-dashboard: **[LCGUI](lcgui/)**
 

mkdocs.yml

@@ -51,8 +51,7 @@ plugins:
 
 nav:
   - Home: index.md
-  - LiquidCore15:
+  - LiquidCore15: '!import https://git.daelon.cloud/daelon/LiquidCore15?branch=main'
-    - Telemetry Interface: LiquidCore15/telemetry-interface.md
   - LCGUI: '!import https://git.daelon.cloud/daelon/LCGUI?branch=master'
 
 markdown_extensions: