TPT User's Guide - PikeTec

TPT User's Guide Page 51
tpt_vmapi_runCycle
This function runs a single time-step of the TPT virtual machine with given inputs and outputs.
This function need to be called in a loop together with the system under test function call.
tpt_vmapi_closeExecution
This function terminates the TPT runtime environment execution. It closes all open files and
releases allocated memory.
9.4.2 Executable platform configuration
Assume for example the lights control example is implemented as C-function that returns the
“headlight” as function of “light_switch” and “light_intensity”. In order to create
a test-frame for this a test-frame needs to be programmed and compiled that calls periodically
the TPT virtual machine and the function “getHeadlightValue”.
Templates for the executable platform generation are available and can be found in the lights
control example.
Figure 35: Executable platform configuration
For the Executable platform configuration please specify the working directory
(tpt.exeplatform.workdir) from where the command/function is executed. The
command itself consists of the executable function test-frame and parameters for the input-
TPT-file (tpt.scenario.tvmfile) and the output file (tpt.scenario.tptbinfile). In
the example the executable function is lights_control_testframe.exe in the working directory.
The parameter tpt.scenario.tvmfile, tpt.scenario.tptbinfile and
tpt.exeplatform.workdir are pre-defined variables used in TPT (see section 15.10:
Environment variables). Also the sampling time, the maximum timeout-time and the history
must be specified.
9.4.3 Test Source Code with the Exe-Platform
Before we begin to prepare, compile and test a given system’s source code using TPT and the
Exe-Platform, we have to ensure, that some prerequisites are met.