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MOST Network and System

Building a MOST Infotainment System in a Networking Environement

18. Juli 2013, 15:00 Uhr | Yury Asheshov

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Fortsetzung des Artikels von Teil 3

In the focus: the Automotive Test Solution

The solution proposed by K2L is the Automotive Test System (ATS), which enables simulation and testing of automotive devices or systems. This is a comprehensive PC development tool, which is built on the .NET framework and works under a Windows operating system. It consists of the following parts:

the hardware interface,
the viewer software,
the Windows service application,
the framework and
the code generator.

The hardware, named MOCCA compact, is connected to the PC over USB and provides access to field buses such as MOST, CAN and LIN. The viewer application is a trace tool to display incoming and outgoing messages, to disassemble their data and to show information about the buses. The ATS Windows service application is a communication center that implements the virtual MOST on the PC and connects it to the hardware (if any). The framework is a set of .NET libraries that can be used in customer applications built on ATS. The code generator, called MAG.NET, creates the .NET assemblies from files that describe the network protocol. The generator supports CAN DBC, LIN Description File (LDF) and a MOST XML function catalog. MAG.NET generates .NET classes that represent the messages for the CAN, MOST and LIN protocols. The generated code for the LIN protocol includes the driver configuration as well. The code generated from a MOST XML file also contains the .NET classes that implement the default behaviour for both sides of the communication: the controller/shadow (client) and the slave/FBlock (server).
Modern techniques which include, for example, parameterized tests, are widely spread in the .NET environment, and can reduce the development efforts for the automated tests.
K2L ATS is well-suited for testing and simulation of the traditional infotainment system as a set of devices that are built into the vehicle and communicate over MOST, CAN and LIN. Some of these devices can have a pair-to-pair connection to the end user devices, for example, over Bluetooth.