Simulating Your Embedded Project on Your Computer (Part 2)

Simulating Your Embedded Project on Your Computer (Part 2)

Nathan Jones

Still RelevantIntermediate

Having a simulation of your embedded project is like having a superpower that improves the quality and pace of your development ten times over! To be useful, though, it can't take longer to develop the simulation than it takes to develop the application code and for many simulation techniques "the juice isn't worth the squeeze"! In the last article, I showed you how to use the terminal (i.e. printf/getchar) to easily make a completely functional simulation. In this article, we'll take simulation to the next level, either in terms of realism (by using virtual hardware) or in terms of user experience (by using a GUI to simulate our hardware, instead of using the terminal).

Summary

Nathan Jones expands on building useful simulations for embedded projects by moving beyond terminal I/O to virtual hardware and GUI-driven simulators. The article explains realistic virtual peripheral models, trade-offs in fidelity vs. development cost, and practical ways to integrate GUI front-ends or emulator backends into a firmware workflow.

Key Takeaways

Choose suitable emulator/back-end tools (e.g., QEMU, Renode) based on target CPU, peripheral fidelity, and multi-node needs
Build virtual peripheral models to increase realism while minimizing simulation development time
Implement a lightweight GUI front-end to improve developer UX and accelerate debugging compared to terminal-only simulations
Evaluate fidelity vs. cost trade-offs and decide when to use full virtual hardware, HIL, or terminal-level simulation
Integrate simulation into the firmware development cycle for faster iterative testing and earlier bug detection

Who Should Read This

Intermediate embedded firmware engineers and technical leads who develop on ARM or RISC-V platforms and want to speed development, improve test coverage, and reduce dependency on physical hardware.

Still RelevantIntermediate