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01 / EMBEDDED

RTOS & real-time

Where software meets the physical world

Concurrent firmware architectures with defined response requirements: tasks, interrupts, communication and resource management on microcontrollers.

Platforms and tools follow your context. Some examples:

C / C++ / STM32 / ESP32 / FreeRTOS / Zephyr / Yocto / FPGA

Embedded

RTOS & real-time

Tasks, resources and timing behaviour

  • Tasks & scheduling

    FreeRTOS · Zephyr · ThreadXPriorities and real workloads

  • Synchronisation

    Queues · mutexes · semaphoresData exchange between tasks

  • Memory & resources

    Stacks · heaps · buffersResource usage and limits

  • Timing & latency

    Jitter · deadlines · interruptsSystem measurements

  • Drivers & integration

    Peripherals · networking · servicesApplication integration

  • Tracing & verification

    Stress tests · logs · error casesBehaviour under load

The technologies shown are examples.

Engineering support within your team, with shared tools and working methods.

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TECHNICAL SCOPE

Real-time firmware and RTOS integration

An RTOS needs explicit responsibility boundaries, beyond simply creating tasks. Events, periodic workloads, priorities and critical sections are analysed so communication, interfaces and acquisition do not block one another. Decisions are verified against the actual workload and target platform.

Activities and verification

  • Define tasks, queues, notifications, mutexes and ownership of shared data.
  • Analyse stack, heap, watchdogs, priority inversion and error paths.
  • Test latency, jitter and load during heavy traffic, timeouts and peripheral faults.

Initial decisions and integration

I gather deadlines, event rates, functional priorities and concurrent workloads. Kernel choices follow the hardware, existing code and team processes. I also examine how interrupts, drivers and libraries share data and resources: timing depends on the complete chain.

A verification example

A useful scenario combines periodic acquisition, communication traffic and a slow peripheral. Delays, stack usage, blocking and watchdog behaviour are observed under defined conditions. Bench measurements support verification but do not alone prove behaviour in every possible state.

Deliverables and acceptance criteria

Task architecture, kernel configuration, source code and measurement reports. Deadlines and test workloads are agreed explicitly: using an RTOS alone does not demonstrate real-time compliance.

Where to start

Bring the hardware platform, toolchain, event rates and maximum acceptable response times for critical functions.

Does an RTOS automatically make a system real-time?

Deadlines require appropriate architecture, priorities and execution paths, together with checks against expected workloads. The kernel is one component of the system.

Dedicated services and further reading

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Insights

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THE NEXT STEP

A system ready
for its next step?

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