Infineon - GTM architecture -generic timer module

Catalog

1 what(GTM)?

1.1 GTM Concept

1.2 GTM framework

1.2.1 ARU

1.2.2 GTM Sub module

1.3 GTM The implementation of the

1.3.1 GTM framework Block chart

2 why(GTM)？

3 how(GTM)？

      The chip used in the early project is Infineon's TC387, I've been learning autosar framework , There is no time to organize hardware related content , In the near future, Infineon will GTM Structure for learning and sorting . The content of this article will be based on TC264 Analyze .

1 what(GTM)?

        This chapter introduces GTM, The key point is to describe the related concepts 、 Point of view , And solutions .

1.1 GTM Concept

        GTM It's a modular framework , Sub modules with different functions . The combination of these sub modules can be configured , Form a timer module with complex functions , It is because of this scalability + Configurability , This framework was called universal timer .

1.2 GTM framework

1.2.1 ARU

        GTM The scalability and configurability of is realized through an architectural concept , That is, dedicated hardware sub module bits surround the central routing unit （ARU） Around .ARU These sub modules can be connected in a flexible way . The connection is software programmable , And can be configured at runtime .

         However ,GTM It is designed to unload the built-in... From the high and medium breaking load CPU Or peripheral kernel .GTM Most internal tasks can be performed externally CPU Set up independently and run in parallel with the software , There may be special circumstances , built-in CPU Have to do something , but GTM The goal of the design is to minimize these situations .

1.2.2 GTM Sub module

        1.2.2.1 Dedicated functional submodules

                 for example , Timer input module , The input signal can be captured , At the same time, describe the concept of time . By combining multiple sub modules , Can establish ARU Complex functions .

        1.2.2.1 Sub modules of the common architecture

                 for example , Yes PWM Generating unit of .

        1.2.2.1 Submodules of domain specific functions

        1.2.2.1 Sub modules supporting security functions

         therefore , Every GTM It is composed of four sub modules . From integration to implementation GTM Definition of the number of components of sub modules in .

1.3 GTM The implementation of the

         As mentioned in the previous section ,GTM Implement general timer platform , Serve different application domains and different classes in these application domains . According to the various requirements of the application domain , Multiple device configurations with different number of sub modules can be used ( namely ATOM、BRC、MCS、PSM、SPE、TIM、TOM). In this section , summary GTM The implementation of the .

1.3.1 GTM framework Block chart

2 why(GTM)？

        This chapter will focus on ： Why study GTM？GTM What problems can be solved ？GTM What's the value ？ Why use GTM？ Use GTM What are the benefits ？ Don't use GTM What are the disadvantages of ？

3 how(GTM)？

        This chapter will cover , How to use GTM.