With the rise of industrial cyberattacks (e.g., Triton, CrashOverride), newer firmware versions implement:
# Check current firmware
smartctl -i /dev/sgX | grep "Firmware Version"
3. Development Workflow
- Requirements & Specs: Define real-time constraints, memory and power budgets, and update mechanisms.
- Toolchain: Select compiler (GCC/Clang or vendor toolchain), debugger (JTAG/SWD), and build system (CMake/Make).
- Version Control: Use Git with CI to build images, run static analysis, and trigger unit tests.
- Emulation & Hardware-in-the-Loop: Unit test in host emulators, then validate on target boards using automated test rigs.
- Firmware Over-The-Air (FOTA): Secure update pipelines with integrity checks and A/B partitions or rollback support.
- Release & OTA Monitoring: Staged rollouts, crash reporting, and telemetry to detect regressions.