AUTOSAR or Automotive Open System Architecture is a systematized automotive software architecture, which keeps order in interfaces between application software and basic vehicular functions and it aids in creating common ECU software architecture for all the AUTOSAR members. AUTOSAR is expected to dispense intrinsic advantages to the members to control gradually more complex E/E in-vehicle environments like simple incorporation and exchange of functions in complex ECU networks and control over the entire product lifecycle. The AUTOSAR standard defines variations of the software architecture called AUTOSAR platforms: Classic AUTOSAR Platform and Adaptive AUTOSAR Platform.
AUTOSAR is a growing and evolving standard that defines a layered architecture for the software. The classic AUTOSAR platform runs on a microcontroller and is divided into 3 main layers
The AUTOSAR Basic Software (BSW) is further divided into three layers:
1.Services Layer,
2.ECU Abstraction Layer,
3.Microcontroller Abstraction Layer (MCAL)
1.Services Layer
The service layer is the topmost layer of AUTOSAR Basic Software Architecture.
The service layer propounds
2.ECU Abstraction Layer
ECU Abstraction Layer l and its drivers are independent of the microcontroller and dependent on the ECU and interfaces the drivers of the Microcontroller Abstraction Layer (MCAL).
ECU Abstraction propounds
Access to all the peripherals and devices of ECU, which supports functionalities like communication, memory, I/O, etc.
3.Microcontroller Abstraction Layer (MCAL)
The Microcontroller Abstraction Layer (MCAL) also known as a hardware abstraction layer is the lowest layer of the Basic Software.
MCAL contains internal drivers which are software modules that are direct access to the µC and integrated with the microcontroller through registers, and offers drivers like system drivers, diagnostics drivers, memory drivers, communication drivers (CAN, LIN, Ethernet, etc.), I/O drivers and more.
RTE Layer
RTE Layer is a middleware layer of the AUTOSAR software architecture between the BSW and the application layer and provides communication services to the application software for example AUTOSAR Software Components and/or AUTOSAR Sensor/Actuator components.
Application layer
The application layer is the topmost layer of the AUTOSAR software architecture and supports custom functionalities implementation. This layer consists of the specific software components and many applications, which are a group of interconnected AUTOSAR Software Components and perform specific tasks as per instructions.
The AUTOSAR application layer consists of three components which are: application software components, ports of software components, and port interfaces. Depending on the requirements of the application an AUTOSAR Software Component might be a small, reusable piece of functionality such as lane-keeping assistance, Wiper control, Automatic door unlock, etc.
Services by Faststream Technologies
Faststream Technologies partnering with AUTOSAR, helps the automotive OEMs and tier 1 suppliers in many AUTOSAR related solutions like development, integration, and validation of AUTOSAR basic software modules.We integrate the AUTOSAR stack software from tool suppliers, and upgrade platform software to new AUTOSAR versions as per specifications and more.
Implementation of our Classic AUTOSAR basic Software:
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Our Product Line
AdaptiveCore
Adaptive platform for safe and secure applications
Hypervisor
Micro-kernel-based hypervisor to run multiple (different) operating systems on one single CPU Adaptive platform for safe and secure applications
Linux
Container based Linux distribution
Faststream’s solution
Integrated development environment for the AUTOSAR products
Faststream’s Software infrastructure for high performance controller
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