MSP430 IDE

A native macOS IDE for the Texas Instruments MSP430 microcontroller family. Built in SwiftUI / AppKit, no Electron.

Status: early. Editor + build + flash work for C and assembly projects. Debugger and serial monitor are next.

Requirements

• macOS 13+
• Swift toolchain (Command Line Tools is enough — full Xcode not required)
• msp430-elf-gcc (TI's tarball or Homebrew)
• mspdebug (brew install mspdebug)

The IDE auto-detects toolchains in ~/.local/msp430-gcc/bin, ~/ti/msp430-gcc/bin, /opt/homebrew/bin, and /usr/local/bin.

Build & run

make run       # builds MSP430IDE.app and opens it
make app       # just build the .app
make clean

Project format

Each project has an msp430.toml at its root. Two modes:

• native — the IDE drives msp430-elf-gcc / mspdebug directly using [defaults] + [configs.*].
• external — the IDE shells out to user-provided commands (make, make flash, etc.). Use this for existing Makefile-based projects.

Workspace state (open files, active config) lives in .msp430ide/workspace.json and is gitignored by the template.

Layout

Sources/MSP430IDE/
  MSP430IDEApp.swift       @main, scene + commands
  Models/                  ProjectModel, AppState, Toolchain, WorkspaceState
  Views/                   SwiftUI views (MainView, FileTree, CodeEditor, Console, Toolbar)
  Services/                Builder, ExternalBuilder, Flasher, ProcessRunner
  Syntax/                  C highlighter (assembly highlighter coming)
  TOML/                    Hand-rolled TOML parser (no external deps)
  Util/                    GlobMatcher

CLI smoke tests

MSP430IDE_VALIDATE=path/to/project ./.build/release/MSP430IDE
MSP430IDE_BUILD=path/to/project MSP430IDE_CONFIG=Release ./.build/release/MSP430IDE