Learn AUTOSAR-ARXML-C with Real Code Examples

AUTOSAR ARXML defines software components, interfaces, and ECU configurations in XML files.

C code is generated or written to implement the behavior defined in ARXML.

Supports standardized communication via CAN, LIN, FlexRay, Ethernet, and SOME/IP.

Enables modular, reusable, and maintainable software for automotive ECUs.

Used by OEMs and suppliers for ECU integration and system-level configuration.

Software Component (SWC) modeling

Interface and port definitions

RTE (Runtime Environment) configuration

C code implementation for SWCs

ECU mapping and configuration

SWC (Software Component) - functional unit

Port - interface endpoint for data/events

Runnable - executable behavior inside SWC

RTE (Runtime Environment) - middleware connecting SWCs

BSW (Basic Software) - hardware abstraction and services

ARXML folder (SWC, system description, ECU configs)

C source and header files

RTE generated files

BSW modules and drivers

Build scripts and makefiles

Define SWCs and their interfaces in ARXML

Configure ECU mapping and BSW modules

Generate RTE and C code

Implement SWC behavior in C

Build and deploy to ECU hardware

Beginner: simple SWC with one runnable

Intermediate: multi-SWC application on one ECU

Advanced: cross-ECU communication setup

Expert: Adaptive AUTOSAR dynamic services

Architect: complete automotive platform integration

Classic vs Adaptive AUTOSAR: Classic static, Adaptive dynamic services

AUTOSAR vs non-standard ECU software: AUTOSAR modularity and interoperability

ARXML vs manual C coding: ARXML adds standardization and tool support

AUTOSAR vs OSEK: AUTOSAR is successor with layered architecture

AUTOSAR vs proprietary ECU software: better reuse and supplier integration

2003 - AUTOSAR consortium founded

2004 - First Classic platform release

2006 - Early ARXML specification

2010 - RTE improvements and tool support

2013 - Adaptive platform conceptualized

2015 - Adaptive platform 17-03 release

2018 - SOME/IP and Ethernet support

2021 - Latest Classic/Adaptive revisions

2025 - Ongoing updates for ISO 26262 and electric/autonomous vehicle support

ARXML - XML description of SWCs and system

SWC - Software Component

RTE - Runtime Environment

Runnable - function executed by RTE

BSW - Basic Software for ECU abstraction