Learn MISRA-C-AVIONICS with Real Code Examples

Guidelines operate at code and project level

Rules cover expressions, control flow, functions, types, and macros

Compliance is verified through static analysis, code review, and testing

Supports hierarchical projects with module-level rule enforcement

Optional deviations formally documented for justified exceptions

Code is compiled for target embedded hardware

Static analysis checks rule compliance before integration

Runtime behavior is predictable and well-defined

Violations are documented and justified

Integration with RTOS or bare-metal environments

Module-based software structure

Layered abstraction for hardware access

Strict interface definitions between modules

Use of static data structures over dynamic allocations

Formal testing and verification at each layer

Flight control software

Avionics sensor and actuator modules

Navigation and guidance systems

Safety-critical communication protocols

Redundant embedded control systems

Avoid undefined and unspecified behaviors

Restrict unsafe constructs and dynamic memory

Enforce type safety and explicit conversions

Enable static analysis and verifiable code

Maintain portability, readability, and maintainability

Use modular code for complex avionics subsystems

Apply rules consistently across all modules

Automate static analysis in CI/CD pipelines

Document deviations centrally for team-wide tracking

Optimize code without violating MISRA rules

Update legacy C code to comply with MISRA rules

Document and justify deviations for existing unsafe constructs

Refactor dynamic memory and pointer usage

Integrate static analysis tools in development workflow

Test thoroughly to ensure functional equivalence and compliance