<p>This is a Master Thesis at the Computer Science Program at Växjö University. It has been made at BSR in Växjö where the development of a diagnostic tool has been in the running since the beginning of 2008. Previously there was a base developed within the company which I was to use for developing the two layers that I was responsible for – ProtocolLayer and PresentationLayer. In the end it should lead to a XML-based diagnostic tool. The technologies used have been .NET with its language C# and XML. The future purpose for this tool is for it to be used within the company to receive important information about the cars when developing other BSR products.</p><p>This thesis has focused on developing the tool to be working with the car manufacturer VOLVO and its protocols. The idea is that the diagnostic tool in the future could be extended to be working with all possible car manufacturers’ protocols and to enlighten the extensibility the project has been done using the product-line approach.</p>

This is a Master Thesis at the Computer Science Program at Växjö University. It has been made at BSR in Växjö where the development of a diagnostic tool has been in the running since the beginning of 2008. Previously there was a base developed within the company which I was to use for developing the two layers that I was responsible for – ProtocolLayer and PresentationLayer. In the end it should lead to a XML-based diagnostic tool. The technologies used have been .NET with its language C# and XML. The future purpose for this tool is for it to be used within the company to receive important information about the cars when developing other BSR products. This thesis has focused on developing the tool to be working with the car manufacturer VOLVO and its protocols. The idea is that the diagnostic tool in the future could be extended to be working with all possible car manufacturers’ protocols and to enlighten the extensibility the project has been done using the product-line approach.

This diploma work is targeting fault diagnostics of electronic systems and engines used in automobiles. Results and methods used to diagnose faults are analyzed within the work, using standard diagnostic methods and devices, results of which were captured measuring with multi-channel oscilloscope. Furthermore, suggestions of using methods optimized for cost and time difficulty factors are made.

<p>Den här rapporten beskriver ett examensarbete för högskoleingenjörsexamen i datorteknik vid Växjö universitet. Vid företaget BSR i Växjö pågår utvecklingen av ett diagnosverktyg benämt BSR Diagnostic Tool. Syftet med projektet är att kunna använda en hårdvaruklass som kommunikationsdel istället för diagnosverktyg från de olika biltillverkarna. Inom objektorienterad programmering är en klass ett avsnitt programkod som samlar en mängd relaterade attributer och funktioner för ett objekt. I rapporten beskrivs implementeringen av hårdvaruklassen samt tillhörande teori för kommunikationsbussen som används, nämligen CAN. BSR har redovisat vilka funktioner som bör finnas med i klassen genom att göra ett diagram med dessa. Målet i första hand var att få en fungerande kommunikation med styrenheter i en Saab. Testning har skett genom ett enkelt testprogram som ger möjlighet att skicka en fråga och få tillbaka ett svar från en styrenhet i fordonet genom hårdvaruklassen. Utvecklingen av systemet har skett med hjälp av programspråket C# och utvecklingsmiljön .NET. Företagets representanter var nöjda med resultatet då det utgör en bra grund för vidareutvecklingen av BSR Diagnostic Tool.</p> / <p>This abstract describes the bachelor degree thesis in computer technology at Växjö University. At the company BSR in Växjö, Sweden there is a new project under development called BSR Diagnostic Tool. The main idea is to use a hardware class for communication instead of the diagnostic tools that are provided by the car manufactures. In object-oriented programming, a class is a programming language construct that is used as a blueprint to create objects. The task was to implement this hardware class which will handle the communication between a computer and the control units in the vehicles. The report also includes a big theoretical part about the communication bus that is used, CAN. The objective was to create the class and make it communicate successfully with a Saab. The testing of the class was done with a simple program. The program can send a question to the vehicle and retrieve an answer with help of the hardware class. BSR provided a diagram with functions that should be present. The development of the system was done using C# and .NET Environment. The company was satisfied with the results since they provided a good basis to further development of BSR Diagnostic Tool.</p>

Den här rapporten beskriver ett examensarbete för högskoleingenjörsexamen i datorteknik vid Växjö universitet. Vid företaget BSR i Växjö pågår utvecklingen av ett diagnosverktyg benämt BSR Diagnostic Tool. Syftet med projektet är att kunna använda en hårdvaruklass som kommunikationsdel istället för diagnosverktyg från de olika biltillverkarna. Inom objektorienterad programmering är en klass ett avsnitt programkod som samlar en mängd relaterade attributer och funktioner för ett objekt. I rapporten beskrivs implementeringen av hårdvaruklassen samt tillhörande teori för kommunikationsbussen som används, nämligen CAN. BSR har redovisat vilka funktioner som bör finnas med i klassen genom att göra ett diagram med dessa. Målet i första hand var att få en fungerande kommunikation med styrenheter i en Saab. Testning har skett genom ett enkelt testprogram som ger möjlighet att skicka en fråga och få tillbaka ett svar från en styrenhet i fordonet genom hårdvaruklassen. Utvecklingen av systemet har skett med hjälp av programspråket C# och utvecklingsmiljön .NET. Företagets representanter var nöjda med resultatet då det utgör en bra grund för vidareutvecklingen av BSR Diagnostic Tool. / This abstract describes the bachelor degree thesis in computer technology at Växjö University. At the company BSR in Växjö, Sweden there is a new project under development called BSR Diagnostic Tool. The main idea is to use a hardware class for communication instead of the diagnostic tools that are provided by the car manufactures. In object-oriented programming, a class is a programming language construct that is used as a blueprint to create objects. The task was to implement this hardware class which will handle the communication between a computer and the control units in the vehicles. The report also includes a big theoretical part about the communication bus that is used, CAN. The objective was to create the class and make it communicate successfully with a Saab. The testing of the class was done with a simple program. The program can send a question to the vehicle and retrieve an answer with help of the hardware class. BSR provided a diagram with functions that should be present. The development of the system was done using C# and .NET Environment. The company was satisfied with the results since they provided a good basis to further development of BSR Diagnostic Tool.