Civil Engineering Reference
In-Depth Information
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Fig. 6.12
Schematic presentation of a test system for embedded-software tests
processor on the target platform when executing software or hardware combined
tests. Interface channels once made available are applied as abstract ones. Therefore,
they can be used for tests of various software modules on the same target platform.
6.4.4.6
General Test-System Architectures for Embedded Software Tests
Figure
6.12
depicts the recommended architecture of a test system for communica-
tion stack software tests on the target hardware in conjunction with a test object
(IUT) together with its enclosed behavioural modules/features (VH = VerHalten =
behavior (German)).
On the right hand side is the test-system kernel with its associated tasks such as
linking of the TC description, driver pool control of interface hardware and mea-
surement devices, providing communication channels, test evaluation, logging, etc.
With regard to test control, test signals to and from the test object are to be prepared
correspondingly. Thereby, the test object gets the appropriate signals and thus the
test-object reactions can be uniquely reproduced. This job is performed by the en-
capsulation adapter. Control information is derived from the TCs and transferred
through the encapsulation adapter to the interfaces of the measurement devices and
the target platform where they are applied to the test environment as IUT test sig-
nals. The encapsulation is performed on the test object and also on the RS. Insofar,
