Yes—you can build an Eclipse-based workflow for ARM microcontrollers instead of relying on a vendor’s bundled IDE. The key is that Eclipse is only one part of the setup: you also need C/C++ tooling, a compiler and build system, target-specific project support, and a debugger configuration that matches your MCU and board. The tutorial behind “Going to Mars” describes how those pieces fit together, but its 2015 software versions and installation steps are historical, not current setup instructions.
What “Going to Mars” means
Erich Styger’s September 4, 2015 tutorial shows how to assemble an Eclipse environment for creating, building, and debugging ARM Cortex-M projects. Rather than install one vendor’s all-in-one IDE, the approach combines an editor and C/C++ tooling with embedded plug-ins, a compiler, build utilities, and separate debug support.
The author’s goal was an environment that could be adapted across vendors. That flexibility does not make projects automatically portable: startup code, device definitions, SDKs, linker settings, and debugging must still suit the particular MCU and board.
How the 2015 setup was assembled
The tutorial’s specific stack is useful as a map of the required roles, not as a recipe to repeat today. It used Eclipse Mars 4.5 with CDT 8.7, GNU ARM Eclipse plug-ins, GCC ARM Embedded 4.9-2015-q2, build tools, and separately configured debug support.
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| Role | What the tutorial used | What to take from it |
|---|---|---|
| IDE and C/C++ tooling | Eclipse IDE for C/C++ Developers and CDT 8.7, including its C/C++ GDB Hardware Debugging feature | Use an Eclipse distribution with C/C++ support and a debugging integration appropriate to your target. |
| Embedded plug-ins | GNU ARM Eclipse plug-ins, configured to point to the compiler and build utilities | Embedded build support connects Eclipse projects to the cross-compiler and related command-line tools. |
| Compiler and build utilities | GCC ARM Embedded 4.9-2015-q2 and GNU ARM Eclipse build tools | The compiler, make/build tools, and project settings need to work together; the versions named in the post are obsolete historical details. |
| Debug integration | SEGGER J-Link and/or P&E Multilink, with corresponding software and Eclipse configuration | Debug hardware and its server or plug-in are separate compatibility choices, not automatic consequences of installing Eclipse. |
| Optional Kinetis support | Freescale Kinetis New Project Wizard, Processor Expert, and Kinetis SDK | These additions were vendor- and MCU-family-specific, not requirements for ARM development generally. |
The post also mentions optional aids such as EmbSysRegView for peripheral registers, FreeRTOS awareness, static analysis, Doxygen, and version control. Those may help a particular workflow but are not prerequisites for a basic build-and-debug environment.
What to install now
For a new embedded Eclipse installation, current Eclipse guidance points to the packaged Eclipse IDE for Embedded C/C++ Developers. The Eclipse CDT project also recommends using a C/C++ or Embedded C/C++ IDE package rather than treating CDT as a standalone compiler or complete embedded toolchain. CDT describes itself as development tooling that relies on command-line tools for tasks such as building and debugging.
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If you already have an Eclipse installation, Embedded CDT documents adding its plug-ins through the Eclipse Marketplace or a stable update site. Its documentation recommends the packaged Embedded C/C++ IDE for fresh installations and identifies the stable v6 update site for existing IDEs. Check the project’s current instructions before installing because plug-in versions and endpoints can change.
The current Embedded C/C++ package listing includes managed cross-build plug-ins for Arm and RISC-V, plus debug plug-ins for J-Link, OpenOCD, pyOCD, and QEMU. Those package contents do not guarantee support for every board or MCU. Confirm that the device, startup files, SDK, and required debug server are supported by the relevant vendor and probe documentation.
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Does Eclipse replace a vendor IDE?
Sometimes. An Eclipse-based setup can be a practical alternative when you can supply or configure the device support, project files, compiler, and debugger yourself. A vendor IDE may be more convenient when it provides ready-to-use projects, device-specific wizards, SDK integration, and examples for your exact target.
Compare the actual capabilities you need rather than assuming either route is universally better:
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- Target coverage: Does it support your exact MCU and board, including startup files, SDK, and examples?
- Build control: Can you inspect and change compiler, linker, and build settings as needed?
- Debugger fit: Does the probe and debug server support the target’s debug interface, and is the required Eclipse integration available?
- Maintenance: Who will keep the IDE, plug-ins, compiler, SDK, and probe software compatible?
- Repeatability: Can you archive the required tools and reproduce the installation for your operating system and licensing constraints?
Styger valued the control and potential cross-vendor reuse of a self-assembled setup, while acknowledging the initial assembly work. He estimated that his particular 2015 setup “only takes about 30 minutes”; that is his estimate for that setup, not a current installation benchmark or a general time guarantee.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Choosing and configuring debug hardware
A hardware probe is optional for development that does not require on-target debugging, but it is normally part of a workflow that needs to halt, inspect, and step through code on a physical MCU. The tutorial names the SEGGER J-Link debug probe and P&E Multilink as examples from its period. J-Link is a product family, not a universal requirement; the cited material does not establish that a particular model works with every board.
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Before choosing a probe, identify your MCU and board, the debug interface exposed by the board, the probe models supported for that target, and the compatible server or Eclipse integration. Then follow current vendor and probe documentation to install its software and configure Eclipse. The 2015 post’s paths and update sites should not be assumed to remain valid.
Use the old tutorial as a checklist, not a current installer guide
The durable lesson is architectural: a modular Eclipse setup works when its components agree on the target and on how projects are built and debugged. Start with the current Embedded C/C++ package or the documented route for extending an existing Eclipse installation, then use current device-vendor instructions for MCU-specific project support. Treat Mars, CDT 8.7, the old GCC release, archived plug-ins, and period-specific Windows installation details in Styger’s article strictly as historical context.
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