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MICROSAR Classic

A complete, scalable base software stack for real‑time ECU development. Flexible to adapt to your system and ready for both simple and complex architectures.
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MICROSAR Classic gives you a complete, real‑time‑capable base software stack that adapts to your system and use case. Its modular architecture scales from simple single‑core ECUs to complex multi‑core platforms with flexible runtime options and extensions.

MICROSAR Classic is the production-ready AUTOSAR Classic platform used by OEMs and Tier‑1 suppliers worldwide, that goes beyond the standard.

Key Benefits at a Glance

A complete, ready‑to‑use software foundation that adapts to your system and standards. Built on proven AUTOSAR expertise, it combines flexibility, security, and safety to support efficient development across platforms and project requirements.

  • Turnkey software, ready to run 
    Receive pre‑integrated software with project‑specific extensions and services, delivered as a complete solution. 
  • Aligned with OEM requirements 
    Available as generic or customer‑specific configurations to fit your system context. 
  • Trusted AUTOSAR expertise 
    As an AUTOSAR Premium Partner, we develop reliable, standards‑compliant solutions that support efficient and consistent implementation in your projects. 
  • Efficient configuration and data handling 
    Powerful configuration tools support AUTOSAR‑XML, DBC, LDF, FIBEX, CDD, and ODX formats. 
  • Scalable cybersecurity by design 
    High‑performance cryptographic modules provide strong, scalable security. 
  • Safety without compromise 
    Built‑in functional safety and fail‑operational support, ready for safety‑critical systems (ISO 26262 up to ASIL D).  
  • Broad platform coverage 
    Off‑the‑shelf stacks support a wide range of hardware platforms and compilers. 

Key Features of MICROSAR Classic

A proven foundation for scalable ECU development

Modular architecture

Supports a wide range of applications with a consistent and adaptable software structure.

Scalable System Design

Extends from simple electronic control units to complex multi‑core controllers.

Flexible Runtime Integration

Runs directly on hardware or integrates with the Vector operating system as well as other operating systems, depending on your system design.

Single‑Core and Multi‑Core Support

Enables both high‑performance multi‑core setups and efficient real‑time applications on resource‑constrained systems.

Complete Base Software Stack

Seamless integration of the microcontroller abstraction layer (MCAL), supported by a fully integrated set of hardware and peripheral drivers.

Project-Specific Extensions

Includes OEM‑specific modules and additional functionality beyond standard scope.

Certified And Ready for Demanding Systems

MICROSAR Classic is designed to meet demanding quality and maturity requirements for advanced ECU applications, including ADAS systems at higher levels. Certifications for Automotive SPICE, functional safety up to ISO 26262 ASIL D, and cybersecurity according to ISO/SAE 21434 — supported by Vector’s TÜV‑certified Cybersecurity Management System aligned with UNECE R155 — provide a reliable basis for safe, secure, and available ECUs.

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Your Perfect Start With Our Products
Are you looking for the right foundation for your next project? Try Vector’s software platform products, which come with ready-to-use packages that let you quickly and efficiently evaluate workflows, features and development approaches.
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Build Skills, Strengthen Your Project

Build your capabilities with embedded services, targeted qualification programs, and practical training. Combine expert support with hands‑on learning to move your project forward with confidence.

Application Examples

Charge and V2X

MICROSAR Classic enables standards-compliant charging and V2X communication, ensuring reliable interaction between vehicle and infrastructure. Support for protocols such as ISO 15118 allows seamless integration and future-proof electric mobility solutions.

Communication

With flexible communication stacks, MICROSAR Classic ensures efficient data exchange across CAN, LIN, FlexRay, and Ethernet networks. Its modular architecture adapts easily to project-specific requirements and evolving vehicle architectures. 

Diagnostics

MICROSAR Classic provides comprehensive diagnostic capabilities, from on-board diagnostics to high-speed communication. This enables efficient fault detection, analysis, and resolution throughout development and vehicle operation.

Measurement and Calibration

Integrated measurement and calibration features give you deep insights into system behavior and support efficient parameter tuning. This accelerates development, optimization, and validation of ECU functions. 

Persistency

Non-volatile data management ensures that critical system and state information is reliably stored and retained across system cycles. This supports stable and consistent ECU operation over time.

Runtime System

MICROSAR Classic Multi-Core enables a wide range of application use cases by providing BSW services across all partitions through satellite mechanisms, ensuring efficient performance with minimal RTE overhead. Combined with MICROSAR Hypervisor, it leverages hardware virtualization to run multiple isolated Classic instances on modern microcontrollers, scaling flexibly across single or multiple cores.

Functional Safety

MICROSAR Classic supports the development of safety-critical applications in compliance with ISO 26262 up to ASIL D. Certified components and fail-operational concepts ensure maximum reliability and system availability. 

Cybersecurity

Built-in security mechanisms protect ECUs against unauthorized access and manipulation. Scalable crypto modules and secure communication support the implementation of modern cybersecurity concepts.

Software Update

MICROSAR Classic enables efficient software updates, including over-the-air (OTA) capabilities. Tight integration with diagnostic and communication modules ensures secure and controlled update processes.

State Management

Lifecycle and mode management functions ensure consistent control of ECU states and operating modes. This supports predictable system behavior across all phases of operation.

Timing

Logical Execution Time (LET) ensures deterministic end-to-end behavior by guaranteeing precise timing, data flow, and value consistency between software components. Supported by a Vector timing toolchain including PREEvision, TA Tool Suite, and VX1000, developers can make timing-aware decisions throughout the entire development process.

Variant and Configuration Management

Comprehensive configuration capabilities allow efficient handling of ECU variants and project-specific adaptations. This simplifies scalability across different vehicle platforms and product lines.

In-Depth Knowledge of MICROSAR Classic

Access a wide range of engineering videos and tutorials on our basic software. Available anytime, whenever you need them.

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Supported Hardware and Compilers
MICROSAR Classic is largely hardware-independent, providing high flexibility across platforms and project setups. By sharing your required combination of derivatives, compilers and basic software modules at an early stage, you ensure a perfect fit for your specific requirements. This enables Vector to deliver a tailored solution and support a smooth and efficient project start.
Overview of Supported Hardware and Compilers

Comprehensive Tooling Ecosystem

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