embedded-systems

To prevent memory fragmentation in embedded systems, use static memory allocation and fixed-size memory pools. This approach ensures deterministic behavior by avoiding dynamic allocation overhead and heap fragmentation during real-time execution.

The best way to handle interrupts in an RTOS is to keep Interrupt Service Routines (ISRs) extremely short and defer heavy processing to tasks. Use queues or semaphores to pass data from ISRs to tasks, preventing priority inversion and latency spikes.

Design a hardware abstraction layer (HAL) by cleanly separating microcontroller-specific code from application logic. This structured BSP layering allows you to port firmware across microcontrollers while maintaining testability through mocked HAL interfaces.

Real-time scheduling manages task synchronization in safety-critical systems by using structured patterns with mutexes, semaphores, and queues. It enforces timeout safety and priority inversion mitigation to ensure deterministic execution and prevent deadlocks.

Yes, you can use host testing for microcontroller firmware by mocking the hardware abstraction layer. This allows you to execute and verify application logic and RTOS task behavior on a development machine before deploying to physical hardware.