Automated test equipment and method using a trigger generation
AssigneeAdvantest Corporation
InventorsMatthias Sauer, Olaf Pöppe
Life of this patent
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Abstract
An automated test equipment comprises a main test flow control configured to operate a test flow in multiple device communication units and/or to provide the trigger configuration information to a local compute unit. The automated test equipment further comprises a device communication unit comprising a trigger generation unit configured to generate a trigger signal. The trigger generation unit further configured to extract payload data from a protocol-based data stream received from the device under test, and to generate the trigger signal in response to the extracted payload data or in response to one or more protocol events. A method and a computer program for testing one or more devices under test in an automated test equipment are also disclosed.
Claims20
A test system comprising:
- a main test flow controller;
- and
- a device communication unit configured to be directly coupled to a device under test (DUT), the device communication unit including a trigger generation unit configured to generate a trigger signal in response to protocol-based data received from the DUT and to communicate the trigger signal to the main test flow controller.
A test system comprising:
- a plurality of device communication units;
- a tester interface coupling the plurality of device communication units to a main test flow controller;
- one or more DUT interfaces operable to directly couple the plurality of device communication units to a plurality of devices under test (DUTs);
- and
- wherein the plurality of device communication units including;
- a respective protocol wrapper of respective one of the plurality of device communication units operable to extract payload data from data received from one or more respective DUTs;
- and
- a respective trigger generation unit operable to generate a trigger signal in response to the payload data extracted from the data received from respective ones of the one or more respective DUTs and to send the trigger signal to one or more of the main test flow controller and the plurality of DUTs.
A test system comprising:
- a tester interface;
- one or more device under test interfaces;
- and
- a plurality of device communication units coupled between the tester interface and the one or more device under test interfaces, each device communication unit directly receiving protocol-based device under test result data on respective ones of the one or more device under test interfaces, generating one or more cycle accurate test flow control trigger signals in response to the protocol-based device under test result data, and further for outputting the one or more cycle accurate test flow control trigger signals on the tester interface.
Dependencies are inferred from the claim text.