Browse Publications Technical Papers 2020-01-1335

Automated Generation of AUTOSAR ECU Configurations using Xtend: Watchdog Timer Example 2020-01-1335

Automotive Open System Architecture (AUTOSAR) is a system-level standard that is formed by the worldwide partnership of the automotive manufacturers and suppliers who are working together to develop a standardized Electrical and Electronic(E/E) framework and architecture for automobiles. The AUTOSAR methodology has two main activities: system configuration and Electronic Control Unit (ECU) configuration. The system configuration is the mapping of the software components to the ECUs based on the system requirements. The ECU configuration process is an important part of the ECU software integration and generation. ECU specific information is extracted from the system configuration description and all the necessary information for the implementation such as tasks, scheduling, assignments of the runnables to tasks and configuration of the Basic Software (BSW) modules, are performed. This activity allows the ECU to modify the configuration parameters based on the vendor-specific requirements. The ECU configuration process involves configuring every single module of the AUTOSAR architecture. Due to the high complexity and redundancy of this process, it has to be supported by different tool-related editors that can automatically generate source files like *.c and *.h for the configuration. In this paper, we propose a method to automate the ECU configuration process for AUTOSAR. We use configuration templates written in xtend programming language along with a BSW generator tool developed at APAG Elektronik. This tool can extract the configuration parameters and automatically generate the required ECU module configuration. The Watchdog timer module will be used as an example to generate and integrate the ECU configuration. This enables the seamless generation of the software configurations from the system level requirements to the software implementation and therefore ensures consistency, correctness, cost efficiency and reduces the work done by the developer to generate the configuration.


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