TPT User's Guide - PikeTec

TPT User's Guide Page 41
9 Platform configuration
9.1 Introduction
TPT test cases are modelled independent of the execution platform. This means TPT test cases
can be executed in different execution environments. Each platform needs different
configurations in order to execute simulations.
In order to execute the tests the test platform has to be configured. The test platform is the
execution or simulation environment (e.g. Model in the loop (MATLAB/Simulink), standalone,
executable file or HiL). The specifics of the environment need to be specified in the platform
configuration.
E.g. the MATLAB platform requires information which Simulink-model file is used while HiLconfigurations
need information how signals at the HiL are mapped. For that reason for each
platform there exists a platform configuration.
Sometimes it makes sense to have different configurations for one physical platform. By doing
this a system under test can be tested in different environments like Model in the loop (MiL) or
Software in the loop (SiL).
9.2 Selecting the platform
Open a platform configuration window using execution | platform | add and select
the platform from the given list.
9.3 MATLAB/Simulink environment
One possible test execution configuration is implemented in MATLAB/Simulink. The test
execution engine (TPT Virtual Machine (VM) is implemented as an S-function in Simulink
(see Simulink S-function documentation). The S-function passes the values calculated by the
system under test (SUT) to the TPT execution engine. For each time step all outputs of the SUT
are inputs to the TPT VM. Thus all values that are needed for the test execution need to be
declared as inputs in TPT and all TPT-outputs are inputs into the SUT. The interface of the TPT-Sfunction
is defined by the channel declaration of the TPT testlet.