platform-nxplpc-arduino

Arduino core: zackees/ArduinoCore-LPC8xx — this platform's framework-arduino-lpc8xx package is that repo.

PlatformIO development platform for NXP LPC8xx (LPC804, LPC845) Cortex-M0+ boards with the Arduino framework.

This is a focused fork of platformio/platform-nxplpc that adds the Arduino framework binding so the ArduinoCore-LPC8xx package can drive a PlatformIO build. The upstream platform only ships mbed and zephyr framework bindings; this fork drops those and adds arduino.

Usage

[env:lpc845brk]
platform = https://github.com/zackees/platform-nxplpc-arduino.git
framework = arduino
board = lpc845brk

PlatformIO installs:

• The platform-nxplpc-arduino platform (this repo).
• The ARM GCC toolchain (toolchain-gccarmnoneeabi).
• The framework-arduino-lpc8xx package (the ArduinoCore-LPC8xx repo).

Board manifests (boards/lpc845brk.json, boards/lpcxpresso804.json, boards/lpcxpresso845max.json) live in the ArduinoCore-LPC8xx repo and are auto-discovered from the project root.

What the Arduino binding does

builder/frameworks/arduino.py is a ~150-line SCons script that:

1. Locates the installed framework-arduino-lpc8xx package and asserts cores/<core>/ + variants/<variant>/ directories from boards/<id>.json.
2. Sets compile / link flags matching the package's upstream platform.txt so PlatformIO and arduino-cli produce comparable output.
3. Adds Arduino defines (ARDUINO=10819, ARDUINO_ARCH_LPC8XX, ARDUINO_<BOARD>, F_CPU) plus the board's build.extra_flags.
4. Picks the linker script from board_build.ldscript (or the board JSON default).
5. Builds variant + core as static libs and prepends them to LIBS.

Why a fork rather than upstream PR?

The upstream nxplpc platform supports a different set of LPC families (LPC1768, LPC11U68, LPC54114, etc.) for mbed/zephyr. Adding Arduino with LPC8xx-specific values directly upstream would be a bigger surface than the upstream maintainers may want without a coordinated proposal. This fork is a quick path to a working PlatformIO + fbuild story; an upstream PR can follow once the LPC8xx Arduino path is exercised in CI.

License

Apache-2.0 (matches upstream).