Make or Buy:

From Packaged Real-Time Software to Custom Real-Time Architectures

Real-time behavior is essential in robotics whenever timing directly affects safety, stability or performance. Motion control, sensor fusion, communication and actuation often depend on deterministic execution, not just average performance.

At an architectural level, teams must decide whether to rely on packaged real-time software solutions or to build and tune a custom real-time software stack tailored to their application and hardware platform.

This decision influences determinism, integration effort and long-term maintainability.

The Core Dilemma: Real-Time Stack Decisions

Hardware

Software

Effort (Time & Cost)

MAKE

Custom Real-Time Software Stack

Hardware selection and configuration fully owned by the team
Tight coupling between MPU, RT-MCU and peripherals required

Custom RTOS configuration, scheduling, middleware and interface integration
Full responsibility for determinism and timing behaviour

High development and tuning effort
Significant testing required to validate timing behaviour
Higher long-term maintenance cost

BUY

Packaged Real-Time Software / Framework

Hardware support and platform assumptions already defined
Validated combinations of MPU, RT-MCU and peripherals.

Pre-configured real-time stacks (e.g. RTOS, middleware, ROS2 profiles)
Defined execution and communication models

Faster integration with predictable behaviour
Reduced tuning effort
Lower risk and shorter time-to-market

Questions Teams Should Ask Before Choosing

What level of determinism is truly required for the application?

Which functions must be hard real-time, and which can tolerate latency?

Do we have in-house expertise to design and validate real-time systems?

How tightly coupled are compute, communication and control loops?

How much flexibility is needed over the system lifecycle?

If real-time requirements or architectural boundaries are unclear, a design review with EBV Embedded Solutions helps define the right balance between packaged solutions and custom real-time design.