[codex] add ArduinoCore LPC8xx board metadata

[zackees]

Summary

Add the concrete board metadata now available in zackees/ArduinoCore-LPC8xx for:

• NXP LPC845-BRK
• NXP LPCXpresso804
• NXP LPCXpresso845-MAX

This also teaches fbuild to preserve build.ldscript and build.openocd_target, uses board metadata as the source for package-specific CPU defines, and enables real LPC804/LPC845 CI fixtures instead of the previous no-op workflow stubs.

Root Cause

The ArduinoCore-LPC8xx package now exposes board-level details that fbuild previously lacked. fbuild only had generic lpc804/lpc845 entries and hard-coded one LPC845 package CPU ID, so the LPCXpresso845-MAX CPU_LPC845M301JBD64 variant could not compile through the NXP LPC8xx Arduino stub.

Validation

• soldr cargo fmt
• soldr cargo test -p fbuild-config test_lpc8xx_arduino_core_board_configs -- --nocapture
• soldr cargo test -p fbuild-build board_lpc_family_accepts_concrete_arduino_boards -- --nocapture
• soldr cargo test -p fbuild-build nxplpc -- --nocapture
• soldr cargo clippy -p fbuild-config --all-targets -- -D warnings
• soldr cargo clippy -p fbuild-build --all-targets -- -D warnings
• soldr cargo build -p fbuild-cli -p fbuild-daemon
• target\x86_64-pc-windows-msvc\debug\fbuild.exe build tests\platform\lpc804 --quick -v --no-timestamp
• target\x86_64-pc-windows-msvc\debug\fbuild.exe build tests\platform\lpc845 --quick -v --no-timestamp
• target\x86_64-pc-windows-msvc\debug\fbuild.exe build tests\platform\lpcxpresso845max --quick -v --no-timestamp

I also checked the LPCXpresso845-MAX compiler response files and confirmed they contain CPU_LPC845M301JBD64, ARDUINO_LPCXPRESSO845MAX, and ARDUINO_ARCH_LPC8XX without CPU_LPC845M301JBD48.

[coderabbitai]

Warning

Review limit reached

@zackees, we couldn't start this review because you've reached your PR review rate limit.

More reviews will be available in 31 minutes and 11 seconds. Learn how PR review limits work.

Your organization has run out of usage credits. Purchase more in the billing tab.

⌛ How to resolve this issue?

After more reviews become available, a review can be triggered using the @coderabbitai review command as a PR comment. Alternatively, push new commits to this PR.

We recommend that you space out your commits to avoid hitting the rate limit.

🚦 How do rate limits work?

CodeRabbit enforces hourly rate limits for each developer per organization.

Our paid plans include higher PR review limits than trial, open-source, and free plans. In all cases, reviews become available again over time. During sustained high-volume PR review activity, CodeRabbit may temporarily slow when the next review becomes available.

Please see our Fair Usage Limits Policy for further information.

ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 5e81899d-cb9d-472a-b246-36e9f9ab5b97

📥 Commits

Reviewing files that changed from the base of the PR and between edb861b and 5d1120a.

📒 Files selected for processing (24)

• .github/workflows/build-lpc804.yml
• .github/workflows/build-lpc845.yml
• .github/workflows/build-lpcxpresso845max.yml
• crates/fbuild-build/src/nxplpc/assets/arduino_stub/wiring_time.c
• crates/fbuild-build/src/nxplpc/assets/device_headers/fsl_device_registers.h
• crates/fbuild-build/src/nxplpc/configs/nxplpc.json
• crates/fbuild-build/src/nxplpc/mcu_config.rs
• crates/fbuild-build/src/nxplpc/orchestrator.rs
• crates/fbuild-build/src/zccache.rs
• crates/fbuild-cli/src/daemon_client.rs
• crates/fbuild-config/assets/boards/json/lpc845brk.json
• crates/fbuild-config/assets/boards/json/lpcxpresso804.json
• crates/fbuild-config/assets/boards/json/lpcxpresso845max.json
• crates/fbuild-config/assets/boards/manifest.json
• crates/fbuild-config/src/bin/enrich_boards.rs
• crates/fbuild-config/src/board/db.rs
• crates/fbuild-config/src/board/loaders.rs
• crates/fbuild-config/src/board/mod.rs
• crates/fbuild-config/src/board/tests_lpc8xx.rs
• crates/fbuild-config/src/board/types.rs
• tests/platform/lpc804/platformio.ini
• tests/platform/lpc845/platformio.ini
• tests/platform/lpcxpresso845max/lpcxpresso845max.ino
• tests/platform/lpcxpresso845max/platformio.ini

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feat/lpc8xx-board-info

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}