CI/CD

CI/CD refers to development practices where software changes are continuously built, tested, and deployed in automated processes. The goal is to integrate source code changes early, verify them automatically, and produce reproducible builds. Typical CI/CD pipelines include steps such as build processes, static code analysis, unit tests, integration tests, and the generation of release artifacts.

In the embedded sector, CI/CD presents special requirements because software doesn't just run on servers or PCs, but is often created for specific hardware platforms. In addition to compiling the firmware, this therefore also includes Cross-Compilation, toolchain management, and reproducible build environments into the pipeline. Containers or defined build environments are often used so that all developers use identical compilers, libraries, and build tools.

Another important component of CI/CD in embedded projects is the Automated testing. This includes static analyses, unit tests with mock drivers or simulations, and integration tests. In advanced setups, tests are also performed directly on real hardware, such as in Hardware-in-the-Loop (HIL)-Environments. Devices can be automatically flashed, reset, and controlled via serial interfaces or debug interfaces.

While Continuous Integration is now widespread in embedded projects, Continuous Delivery is often more complex to implement. Embedded systems are not centrally operated but are delivered as devices or fleets. Deployment processes must therefore consider firmware updates, device management, version control, and monitoring.

CI/CD thus connects classic DevOps methods with hardware-related development in embedded projects. Automated build and test processes help detect errors early, generate reproducible firmware states, and manage the software lifecycle in a controlled manner throughout development, validation, and deployment.