BFE Engineering
c756622c96
The repo's documentation framed it as a support repo for one product (WardenOS). Since going public the real audience is anyone with a Luckfox Pico 86 Panel: a maintained 6.18 kernel, an off-device development loop, and a device simulator that exist nowhere else for this board. Reframe the README and top-level docs board-first, with WardenOS documented as the downstream consumer it is (ADR-0008). Also an editorial pass over the whole doc set: - every H1/H2 is now a short title, not a sentence (ADRs, qemu/, patches/, drivers/, architecture, NPU feasibility, config-lint, payload); workflow flowchart titles fixed at the source in tools/flowgen.py and regenerated with fresh bench numbers - README Quick Start commands verified against the scripts; requirements corrected (curl, bare python, gcc >= 14) and the MC/DC gate added as a step (run green locally on gcc 14.2) - dropped the 'needs python (not python3)' vendor dig: build-kernel.sh inherited the same requirement (filed #10 to remove it) - glossed MC/DC and HPMCU on first use; marked the tests/uboot-ab reference as flare-edge; deduplicated the three-simulator list into the root README table
21 lines
577 B
Markdown
21 lines
577 B
Markdown
# Relay Drive
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> **Outcome tested:** A relay is exported transparently and driven without disturbing a held contact.
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**Coverage**: relays.c — 40/40 conditions, 100% MC/DC (CI-enforced)
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```mermaid
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flowchart TD
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A[warden_relay_set idx,on] --> B{idx < COUNT?}
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B -- no --> Z[no-op]
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B -- yes --> C{exported?}
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C -- no --> D[write export] --> E{exported now?}
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E -- no --> Z2[give up]
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E -- yes --> F
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C -- yes --> F[read direction]
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F --> G{dir == out?}
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G -- no --> H[preserve level: read value,\nwrite high/low]
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G -- yes --> I
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H --> I[write value = on?1:0]
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```
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