Standard SWS Requirement based Integration testing for classic AUTOSAR modules.

In the development of automotive ECUs, to keep performance in desired level, what remains constant is to verify, evaluate and validate ECU. Nowadays, Cars have multiple ECUs even in range of 50. Software is validated using target ECU, CAN communication and some I/O simulation techniques. Also, in some applications, virtual environment is created for testing. In this paper, method of Integration testing of AUTOSAR modules is presented which uses AUTOSAR SWS as its input. This makes standard test cases as SWS remains same for a AUTOSAR standard release. It enables a platform to efficiently test all layers of a AUTOSAR BSW modules after integration. For demonstration, we will use TriCore micro controller TC377TX from Infineon. Same controller is usually used in the development of automotive ECUs for various applications. Using winIDEA debugger from iSYSTEM, setup becomes easier to operate for any new person as it supports both debug and flash mode operation. Simplistic approach will be presented in this paper to use the setup while testing. Requirement based testing covers all the implemented features in the software, their connections with higher and lower layer in AUTOSAR architecture. Some test cases require CAN communication for transferring signals to different ECUs and receive information from them. For those test cases, CANoe Vector hardware is used. Testing using debugging methods is covered in the WinIDEA debugger by checking local and Global variables and putting the breakpoints. For writing the test cases and maintaining the defect logs, documentation is prepared and tracked. Requirement traceability is maintained with the test cases to find test case for particular requirement easily. This system improvises the efficiency and simplifies the testing of AUTOSAR based development. Also, makes it standard.