Test device with test parameter adaptation
View Patent ↗A test device for testing a device under test, wherein the test device is adapted for providing a connection to a central controller, the test device comprising a first interface for receiving a test procedure activation signal from the central controller, and a processor for performing a test procedure on the basis of a test procedure data upon receipt of the test procedure activation signal, wherein the processor is capable of adjusting the test procedure upon receipt of a feedback signal from the device under test.
1. A test device for testing a device under test, wherein the test device is adapted for transmitting a test signal to the device under test and receiving a response signal from the device under test, comprising:
a first interface for receiving a test procedure activation signal from a central controller;
a processor, coupled to receive the test procedure activation signal via the first interface, for i) performing a test procedure upon receipt of the test procedure activation signal, ii) receiving a feedback signal from the device under test, iii) determining from the feedback signal properties of a physical connection between the test device and the device under test, and iv) adjusting the test procedure to modify the test signal and compensate for the properties of the physical connection between the test device and the device under test.
2. The test device of claim 1 , comprising a storage unit for storing a test procedure data, wherein the processor is adapted for generating the test signal based on the test procedure data.
3. The test device of claim 1 , wherein the processor is adapted for adjusting, in response to the feedback signal, at least one of the following test parameters: a wave form, a voltage, and a current of the test signal.
4. The test device of claim 3 , wherein the processor is adapted to evaluate the feedback signal in order to determine a behavior of the signal path between the test device and the device under test, to compare this behavior with a desired behavior and to adjust the test parameters of the test signal based on the comparison result.
5. The test device of claim 3 , wherein the processor is adapted to evaluate the feedback signal in order to determine test signal distortions resulting from at least one of the group consisting of signal damping, signal reflection, and signal delay, and to adjust the test parameters so that the distortions are at least partly compensated.
6. The test device of claim 1 , adapted for testing a device under test which comprises a plurality of pins connected each to different pins of the test device by performing the test procedure individually for different connections.
7. The test device of claim 1 , adapted for performing the test procedure in such a manner that parameters of signals of the test procedure are adjusted based on the feedback signal.
8. The test device of claim 1 , comprising a second interface adapted to couple the test device to the device under test to perform the test procedure with the device under test.
9. The test device of claim 1 , comprising a third-interface adapted to couple the test device to the device under test to provide the test device with response signals generated by the device under test in response to performing the test procedure.
10. The test device of claim 9 , wherein the processor is adapted to process the response signals to generate test result signals.
11. The test device of claim 10 , comprising a fourth interface adapted to couple the test device to the central controller to provide the central controller with the test result signals.
12. The test device of claim 1 , wherein the test device comprises a plurality of test units, wherein each of the test units is adapted to independently test an assigned portion of the device under test.
13. The test device of claim 12 , wherein the plurality of test units are connected for testing at least a part of the assigned portions of the device under test simultaneously.
14. The test device of claim 1 , comprising a plurality of processors and/or a plurality of storage units cascaded in a hierarchical manner.
15. The test device of claim 1 , adapted to test at least one electronic circuit, particularly at least one integrated circuit, as a device under test.
16. The test device of claim 1 , wherein the test procedure is adapted to fulfill at least one of the functions of the group consisting of a calibration function, a compensation function, a time control function, a synchronization function, a comparison function, and a test signal pattern generation function.