MATLAB REAL-TIME WORKSHOP EMBEDDED CODER - S Bedienungsanleitung PDF herunterladen (Seite 31)

6 Simulation and Modelling

6.1 Usability

How easy and how practical it is to use the code generation tools is investigated in

this chapter. Simulink is the common main environment in both TargetLink and

RTW EC. The model can be built and tested in Simulink first and then converted

to the code generation tool since both TargetLink and Real-Time Worskhop

Embedded Coder use Simulink. The model can also be built directly in

TargetLink. Both TargetLink and RTW EC have tools that help the user along the

way while building and generating the code.

6.1.1 TargetLink

The user can directly use TargetLink blocks to build the model. It is also possible

to easily convert an already existing Simulink model to a TargetLink model.

TargetLink has a conversion tool which can be used to convert any model from

Simulink model to TargetLink model and vice versa. After conversion the user

will be able to enter scaling, data type and offset for every block in the model.

The user can easily specify which subsystem in the model the code will be

generated for. TargetLink generates code for only the subsystems that contain

TargetLink blocks. TargetLink subsystem can be part of a Simulink model. In that

way the user can use Simulink blocks connecting to the TargetLink block system

which makes it easy to test and handle in general.

TargetLink offers Data Dictionary, DD, where all central data can be saved. The

user can manage all variables and the corresponding properties from the Data

Dictionary Manager. A library for data can be created in the Data Dictionary and

a central data library is then available and can be accessed independently by any

project TargetLink model. This makes managing data practical and helps keep

data consistent, especially in large and complicated models. TargetLink gives the

user full freedom to save the desired properties as subjects in the Data Dictionary.

The user can, for example, choose to create a data object for scaling which the

user can refer to anywhere in a model. In that way the user will save time by just

referring to the created scaling object in several blocks in the model. If a change

in the data object occurs then the change will apply to all blocks that are

connected to that data object and the user will only need to make the desired

change once. There are different kinds of Data Dictionary objects and Table 4

shows the important kinds of these objects.

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MATLAB REAL-TIME WORKSHOP EMBEDDED CODER - S Bedienungsanleitung Seite 31