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RTA-CAR

AUTOSAR Classic basic software solution

A laptop shows RTA-CAR’s ISOLAR configuration editor on its screen.

RTA-CAR (RTA-Classic AUTOSAR) is a cutting-edge, low-footprint software solution designed for series production in automotive applications. Used by hundreds of companies worldwide, RTA-CAR powers billions of automotive ECUs in millions of vehicles.

Your ambition is our mission

Your project, your vision

We support you with customized solutions for your AUTOSAR use cases, which are open to any partner system. Choose only the components that are needed for your individual project.

Cost efficient freedom

Pay only for what you use, enjoy competitive prices and benefit from lowered cost per ECU produced

True flexibility

With us, the driver’s seat is yours. Our flexible, vendor-independent vehicle platform software RTA-CAR can be tailored to your exact needs, so that you have full control of your AUTOSAR project.

Key facts

> 4,000,000,000 ECUs
Proven at scale: Over 4 billion ECUs worldwide run with ETAS RTA-CAR code, with millions more added weekly.

Strong service, always on your side

Get timely, superior support in your time zone and your language from our global network of regional hubs: Our local experts are always nearby and ready to help, also at your site.

Mathew Vipin
Regional Solution Field Manager, ETAS North America

Mathew Vipin

At ETAS, our team takes pride in making you successful. With deep industry experience, we go beyond just providing products—we build partnerships that help you succeed.

From RFQ to production, we’re by your side, remotely or on-site, delivering tailored solutions like starter kits, training and expert guidance to make transitioning to our AUTOSAR Classic solution RTA-CAR faster and smoother. Your success is our success.

Marc Burgaezi
Regional Solution Field Manager, ETAS Germany

Marc Burgaezi

My personal motivation is to make our customers as satisfied as possible—not just with our products, but with every interaction they have with ETAS. Whether it’s through projects, our hotline, or direct exchanges, I want them to feel fully supported and confident in our solutions.

From my perspective, ETAS plays a key role in making the software in tomorrow’s vehicles even more efficient and reliable than it is today. That’s what drives me every day—to contribute to innovations that shape the future of mobility.

Stefano Piumetto
Regional Solution Field Manager Europe, ETAS Italy

Stefano Piumetto

Our regional AUTOSAR and middleware team ensures that our customers receive fast, expert support and solutions. We excel in pre-sales consulting, troubleshooting, knowledge transfer, and on-site assistance, combining deep technical expertise with a strong local presence. By fostering a culture of excellence and collaboration, we align our efforts with your needs—delivering efficient, high-quality service in your time zone and language, exactly when you need it.

Sisi Tao
Toolchain Software Engineer, ETAS China

Sisi Tao

As a Toolchain Software Engineer for RTA-CAR at the Shanghai hub, my primary focus is on enhancing the customer experience by developing customized scripts tailored to meet the specific requirements of Chinese customers. These scripts facilitate the automated generation of ARXML files, significantly improving development efficiency and customer satisfaction. Additionally, I provide dedicated support to address and resolve technical issues related to the use of the RTA-CAR toolchain, ensuring seamless integration and optimal performance.

Dr. Jeongho Son
Hub Manager Korea, ETAS Korea

Dr. Jeongho Son

As a Local Hub Manager in Korea, I help companies overcome challenges and achieve their goals. With deep insight into Korean business culture, I bridge local needs with global solutions, ensuring strong collaboration.

I take pride in delivering fast, high-quality engineering services by combining top-tier expertise with dedication. With 20+ years in embedded systems, operating systems, and computer networks, I bring hands-on experience to every project. My focus is on truly understanding our clients’ needs and providing tailored solutions that drive success.

Kazunari Isoda
Regional Solution Field Manager, ETAS Japan

Kazunari Isoda

I joined ETAS Japan in 2013 as a regional manager and am responsible for our middleware solutions, supporting our customers to implement our AUTOSAR solution, RTA-CAR.

At ETAS Japan, customer focus and flexibility set us apart. By carefully listening, we deliver tailored solutions that meet each customer's unique needs. Our ability to adapt and offer personalized, high-quality support is what sets us apart. No matter the challenge, we are always nearby and ready to support you.

RTA-CAR: your complete AUTOSAR classic solution

Laptop with RTA-CAR Screenshot

RTA-CAR provides a comprehensive solution that enables you to configure and generate AUTOSAR compliant ECU platform software. It is suitable for use across various automotive application domains, including body and comfort, vehicle dynamics, combustion and electric powertrain, gateways, and more. RTA-CAR excels in any ECU that has low latency and hard real-time requirements, while meeting automotive safety and security standards like ISO26262 ASIL-D, ISO21434, and UN-R155.

RTA-CAR at a glance

Compact & efficient

Optimized for resource-constrained, low-latency real-time environments.

Safety & security

Complies with industry standards like ISO26262 and ISO/SAE21434, along with MISRA-C & CERT-C guidelines.

Versatile Compatibility

Suitable for all ECU types, from smart sensors to vehicle computers, and adaptable for single and multi-OEM projects.

Our solution for your business success

Just as Microsoft Office provides a comprehensive suite of productivity tools, RTA-CAR offers a cohesive set of products designed to work together efficiently. Add-ons and extensions further enhance functionality to meet specific project needs.

RTA-CAR product overview

Product details

ISOLAR-A is a tool for designing AUTOSAR Classic architectures, systems, and application software.

  • Guided design for systems and application software for Classic AUTOSAR.
  • Works seamlessly with ISOLAR-B to cover the full AUTOSAR methodology, from system design to ECU configuration for both application and basic software.
  • Based on Eclipse and uses the Artop open-source AUTOSAR model framework for easy extensibility.
  • Supports AUTOSAR exchange formats, including system, ECU, and diagnostic extract.
  • Enables migration of legacy exchange formats such as DBC, Fibex, LDF, ODX, and Excel.
  • Scales to huge projects with thousands of configuration elements.

ISOLAR-B is a tool for configuring AUTOSAR basic software and orchestrating the RTA code generator suite.

  • Automates basic software configuration from system descriptions.
  • Works seamlessly with ISOLAR-A to cover the full AUTOSAR methodology, from system design to ECU configuration for both application and basic software.
  • Provides tool-guided support for complex use cases.
  • Enables easy configuration updates with incremental diff and merge functions.
  • Integrates seamlessly with ISOLAR-A for faster workflows.
  • Offers graphical views, like COM stack configurations, for easier project work.

RTA-BSW is a suite of modular code generators that produce AUTOSAR classic runtime software from your ARXML configuration.

  • One-box essential development kit: everything you need to build an AUTOSAR classic CAN-based ECU. Just add the OS, RTE & MCAL!
  • Extensible to fit your use cases: add-ons for Ethernet (RTA-ETH), FlexRay (RTA-FRAY), J1939 (RTA-J1939), Lin (RTA-LIN) protocol stacks, and security (RTA-SEC, RTA-ETH-SEC).
  • Optimized lock-free inter-partition communication solution (XCoreCDD).
  • Seamless integration with ETAS hardware security solutions (CycurHSM and CycurSOC) as well as third party security solutions.
  • Proven in use: trusted by the biggest OEMs and Tier1s across the globe as the foundation for their ECU applications.
  • Compatible with third party microcontroller abstraction layer (MCAL) solutions.

RTA-BSW: Core Stack

ETAS Product + Add-Ons AUTOSAR Cluster AUTOSAR Modules Included ETAS Extensions Included
(RTA-BSW Add-On: Rba_*)
ETAS Product + Add-Ons
RTA-BSW
AUTOSAR Cluster
Communication
AUTOSAR Modules Included
CanIf+, CanNm+, CanSM+, CanTp+, CanTrcv+*, Com+, ComXf, E2EXf, IpduM+, LdCom, Nm, PduR, Xcp
ETAS Extensions Included
(RTA-BSW Add-On: Rba_*)
Rba_ComStackCdd, Rba_XCoreCdd, rba_Xfrm
ETAS Product + Add-Ons
AUTOSAR Cluster
Diagnostics
AUTOSAR Modules Included
Dcm, Dem, Dlt
ETAS Extensions Included
(RTA-BSW Add-On: Rba_*)
Rba_DemObdBasic (CARB)
ETAS Product + Add-Ons
AUTOSAR Cluster
Global Time
AUTOSAR Modules Included
CanTSyn, StbM
ETAS Extensions Included
(RTA-BSW Add-On: Rba_*)
ETAS Product + Add-Ons
AUTOSAR Cluster
Libraries
AUTOSAR Modules Included
Bfx, Crc, Efx, E2E, Ifl Ifx, Mfl, Mfx
ETAS Extensions Included
(RTA-BSW Add-On: Rba_*)
ETAS Product + Add-Ons
AUTOSAR Cluster
Memory
AUTOSAR Modules Included
Ea, Fee, MemIf, Nvm
ETAS Extensions Included
(RTA-BSW Add-On: Rba_*)
Rba_EaFs2, Rba_FeeFs1x
ETAS Product + Add-Ons
AUTOSAR Cluster
Mode management
AUTOSAR Modules Included
BswM, EcuM
ETAS Extensions Included
(RTA-BSW Add-On: Rba_*)
ETAS Product + Add-Ons
AUTOSAR Cluster
Safety
AUTOSAR Modules Included
WdgIf, WdgM
ETAS Extensions Included
(RTA-BSW Add-On: Rba_*)
ETAS Product + Add-Ons
AUTOSAR Cluster
System Services
AUTOSAR Modules Included
ComM, Det, Fim
ETAS Extensions Included
(RTA-BSW Add-On: Rba_*)
Full support of AUTOSAR Post-Build Selectable (PBS) parameters - Limited support AUTOSAR Post-Build Selectable (PBS) parameters

RTA-BSW: Optimal Add-On Stacks

ETAS Product + Add-Ons AUTOSAR Cluster AUTOSAR Modules Included ETAS Extensions Included
(RTA-BSW Add-On: Rba_*)
ETAS Product + Add-Ons
+ RTA-ETH
AUTOSAR Cluster
Communication
AUTOSAR Modules Included
DoIP-, EthIf, EthSM, EthTrcv*, Sd-, SoAd-, SomeIpTp, SomeIpXf, TcpIp- (submodules: rba_EthArp,
rba_EthAutoIp, rba_EthDHCP, rba_EthDHCPv6, rba_EthICMP, rba_EthIPv4, rba_EthIPv6, rba_EthIcmpV6, rba_EthNdp, rba_EthTcp, rba_EthUd), UdpNm-
ETAS Extensions Included
(RTA-BSW Add-On: Rba_*)
ETAS Product + Add-Ons
AUTOSAR Cluster
Global Time
AUTOSAR Modules Included
EthTSyn
ETAS Extensions Included
(RTA-BSW Add-On: Rba_*)
ETAS Product + Add-Ons
++ RTA-ETHSEC
AUTOSAR Cluster
Communication
AUTOSAR Modules Included
TcpIp (submodules: rba_EthAh, rba_EthIke2, rba_EthIPsec, rba_EthTls)
ETAS Extensions Included
(RTA-BSW Add-On: Rba_*)
ETAS Product + Add-Ons
+ RTA-J1939
AUTOSAR Cluster
Communication
AUTOSAR Modules Included
J1939Nm+, J1939Rm, J1939Tp
ETAS Extensions Included
(RTA-BSW Add-On: Rba_*)
ETAS Product + Add-Ons
AUTOSAR Cluster
Diagnostics
AUTOSAR Modules Included
J1939Dcm
ETAS Extensions Included
(RTA-BSW Add-On: Rba_*)
ETAS Product + Add-Ons
+ RTA-LIN
AUTOSAR Cluster
Communication
AUTOSAR Modules Included
LinIf+ (includes LinTp), LinSM-, (LinNM is part of Nm), LinTrcv*
ETAS Extensions Included
(RTA-BSW Add-On: Rba_*)
ETAS Product + Add-Ons
+ RTA-FRAY
AUTOSAR Cluster
Communication
AUTOSAR Modules Included
FrIf+, FrNm, FrSM+, FrTp, FrTrcv*
ETAS Extensions Included
(RTA-BSW Add-On: Rba_*)
ETAS Product + Add-Ons
AUTOSAR Cluster
Global Time
AUTOSAR Modules Included
FrTSyn
ETAS Extensions Included
(RTA-BSW Add-On: Rba_*)
ETAS Product + Add-Ons
+ RTA-SEC
AUTOSAR Cluster
Communication
AUTOSAR Modules Included
SecOC
ETAS Extensions Included
(RTA-BSW Add-On: Rba_*)
ETAS Product + Add-Ons
AUTOSAR Cluster
Crypto
AUTOSAR Modules Included
Csm, CryIf, Crypto, KeyM
ETAS Extensions Included
(RTA-BSW Add-On: Rba_*)
rba_CryptoCCL (for RTA-SWCL)
rba_CryptoHSM (for CycurHSM)
rba_CryptoAuSCS (for CycurSoC)
ETAS Product + Add-Ons
AUTOSAR Cluster
Security
AUTOSAR Modules Included
IdsM
ETAS Extensions Included
(RTA-BSW Add-On: Rba_*)
ETAS Product + Add-Ons
+ RTA-SWCL
AUTOSAR Cluster
N / A
AUTOSAR Modules Included
N / A
ETAS Extensions Included
(RTA-BSW Add-On: Rba_*)
Full support of AUTOSAR Post-Build Selectable (PBS) parameters - Limited support AUTOSAR Post-Build Selectable (PBS) parameters

RTA-OS is the world’s smallest and fastest AUTOSAR OS:

  • Delivers best-in-class real-time performance and memory efficiency.
  • Supports a huge range of single and multicore microcontrollers.
  • Includes a virtual ECU development kit (VRTA) for rapid development without target hardware.
  • Excels in RAM-limited environments thanks to its patented single-stack implementation (reducing stack space by 50 to 80%).
  • Optional optimized IOC support educes multi-core inter-partition communication by up to 40% compared to the AUTOSAR standard.

Supported µC & SoCs

Renesas
  • RCar A4x / ARM
  • RCar x3 R7 / ARM
  • RCar x3 R7 / GHS
  • RCar x4 R52 / GHS
  • RH850 / CS
  • RH850 / GHS
  • RH850 / WR
  • RH850x2 / GHS
  • RH850x2 / WR
  • V850E2 / GHS

Infineon
  • IFXHSM / HighTec
  • TLE98xx-M3 / ARM
  • TraveoII M4,M7/ GHS
  • TraveoII M0 / GHS
  • TraveoII / WR
  • TriCore / HighTec
  • TriCore / GHS
  • TriCore / Tasking
  • TriCore / WR
  • TriCore-TC4xx / Tasking
  • TriCore-TC4xx / GHS
  • TriCore-TC4xx / HighTec




NXP
  • i.MX4 M4 / GHS
  • i.MX Mx / GHS
  • i.MXRT / GHS
  • PPCe200 / GHS
  • PPCe200 / HighTec
  • PPCe200 / WR
  • S32K1xx / GHS
  • S32K2,3 Mx / WR
  • S32K2,3 Mx / GHS
  • S32K2,3 Mx / GCC*
  • S32G-Mx / GHS
  • S32N-Mx / WR
  • S32N-R52 / WR
  • S32R-A53 / WR
  • S32Z-M33 / GHS
  • S32Z-R52 / GHS
  • S32Z-R52 / WR

ST
  • PPCe200 / GHS
  • PPCe200 / HighTec
  • PPCe200 / WR
  • Stellar M4 / GHS
  • Stellar R52 / GHS

SemiDrive
  • G9-R5 / IAR
  • V9-R5 / IAR
  • E3xxx / IAR
Texas Instruments
  • AM27R-Mx / GHS
  • AM27R-R5 / GHS
  • AM27R-R5 / WR
  • AM27R-R5 / TI
  • OMAP35x / ARM
  • DRA82x R5 / TI
  • TDA4VM R5 / TI
  • DRA82x R5 / GHS
  • TDA4 R5 / GHS
  • TDA4 Mx / GHS
  • TMS570 / TI

XILINX
  • Ultrascale A5x / ARM
  • Ultrascale R5 / ARM
  • Ultrascale R5 / GCC
  • Ultrascale R5 / GHS
  • Ultrascale R5 / WR
  • Zynq / ARM

CALTERAH
  • ARCEM / MW
  • ARCEM22 / MW

UHNDER
  • SA80M / GHS
  • SA80R / GHS


Further µC & SoCs
  • Flagchip FC7300-M7 / GHS
  • Fujitsu FR81 / Softune
  • Horizon J6E,J6P / GHS
  • Horizon J6B / GHS
  • Nvidia Orin FSI R52 / ARM
  • OLEA U5SP R52 / ARM
  • Qualcomm R52 / ARM
  • Socionext SC172-M32 / ARM
  • TeleChips TCC70-R5 / GHS
  • ThinkTech TTA8 M7 / HighTec
  • VisinexTek VS919-R5 / IAR
  • Zhixin Z20K14x / GHS

In development
  • Bosch SX60x-M7 / GHS
  • Chipower THA620x / GHS
  • Geosemi GM6 NXP S32N-R52 / GHS
  • Texas Instruments F29 / TI


* NXP GCC compile
Ports are listed as follows: Chip Family & CPU Core if relevant / Compiler
WR = WindRiver GHS = GreenHills TI = Texas Instruments
New RTA-OS ports are always in development. Please contact product management to discuss your needs.

RTA-RTE generates ECU communication infrastructure and real-time scheduling for all application software components and their interfaces between application software and basic software modules.

  • Highly optimizing code generator creates low footprint implements that can be up to 50% smaller than competing solutions.
  • Fast generation times to accelerate agile workflows.
  • AUTOSAR RIPS (RTE Implementation plug-in service) support as standard for custom extensions or legacy solution integration use-cases.
  • Accelerated inter-partition communication when used with RTA-OS.

RTA-CAR FSQP provides documentary support to help you argue functional safety when integrating RTA-CAR into your ECU.

  • No special “safety version” of RTA-CAR is required – it is built for ISO26262: ASIL-D as standard.
  • Safety manuals define best practice integration guidelines and assumptions of use (AoUs) to ease safety argumentation.
  • ISO26262 certificates and certificate reports.
  • Example tool classification (TCL) reports and guidance.

Webinar series: Practical guidance and expert insights

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Do you have questions or want to learn more about our AUTOSAR portfolio? We are here to help! Reach out using the form below, and let’s discuss how we can address your specific needs and explore solutions tailored just for you.

How to easily integrate the RTA-CAR AUTOSAR Classic stack: From OEM request to ECU software

We're supporting you through the various integration steps. RTA-CAR can be easily integrated in your project for the creation of your functional ECU software.

The image illustrates the ETAS RTA-CAR workflow.
RTA-CAR – from OEM request to ECU software
illustration of a car with code
ETAS Vehicle software platform suite

Your backbone for seamless and reliable integration

Our embedded software and tools enable you to build safe, secure and state-of-the-art vehicle software platforms upon which applications can be developed and deployed efficiently.

From AUTOSAR Classic to Adaptive, we deliver solutions for everything from microcontrollers to specialized solutions for ADAS and EDGE nodes. With local expertise in our regional engineering service hubs, we support you to accelerate your project success.

Complementary solutions

Additional solutions to help you build your ECU

Flash bootloader solution for ECU reprogramming on the assembly line and in-field use, integrating fully with RTA-CAR and AUTOSAR standard MCAL.

  • Integrates with RTA-CAR and security solutions like CycurHSM
  • Supports UDS re-programming via CAN as standard (via Ethernet or LIN on request)
  • General-purpose and OEM-Specific variants available

Full suite of GM Global-B Standard Utility Modules (SUMs)

  • Supports VIP22, VIP23, and VIP24 vehicle platforms
  • Integrates with RTA-CAR
Three core architectures for automotive software components: Master Core with RTA-OS, BSW, RTE, and trusted applications; Slave Core with hypervisor and trusted applications; and Slave Core with hypervisor, trusted applications, and Non-AUTOSAR code.

RTA-LWHVR (Lightweight Hypervisor) is an ECU partitioning solution for micro-controllers without hardware virtualization support into individual partitions

  • Low memory footprint and fast access times
  • Specifically optimized for use in automotive ECUs
  • Simultaneous and independent ECU development by different suppliers
    • Reduced integration effort of the individual software components
    • Protection of intellectual property between development partners
    • Protection against software errors due to function interaction
    • Support for homologation, where one part of the software must remain unchanged

RTA-HVR is an ECU partitioning solution for micro-controllers with hardware virtualization.

  • Partitioning kernel to allocate CPU cores and hardware features to virtual machines
  • Support for interrupt virtualization
  • Virtual device extension (VDE) mechanism supports peripheral sharing and creation of fully virtual devices (e.g. virtual busses)
  • Option to share a CPU core between multiple VMs

RTA-CCM is a Charge communication management solution for V2G applications.

  • Developed in collaboration with Alefbits
  • Supports ISO15118-2/-20 charge protocol (AC & DC charging, bi-directional power transfer (BPT), external identification (EIM) and Plug’n’Charge billing)
  • Supports ISO15118-3 low-level PLC communication (Qualcomm QAC700x, and Lumissil IS32CG5317 in development)
  • Integrates seamlessly with RTA-CAR

ETAS works closely with third-party solution providers to ensure that our solutions work smoothly with complimentary solutions. Examples includes (but are not limited to):

  • Infineon: ETAS is a reseller of the Infineon MC-ISAR solution
  • NXP: ETAS solutions support NXP’s CoreRide platform and integrate smoothly with the RTD and HSE drivers
  • RealTek: RealTek’s Ethernet switches driver software integrates seamlessly with ISOLAR-B
  • Gliwa: easy integration of the class-leading T1 tool suite brings state-of-the-art timing analysis to RTA-CAR
  • Lauterbach: RTA-OS and RTA-HVR provide support to enable multi-core and hypervisor-aware debugging with Lauterbach’s Trace32 solutions

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