Patent ID: 9651614
Date: 2017-05-16
CPC Classifications: G01R

Claim:
1. A method for device validation, the method comprising: providing a device under test, wherein the device under test includes at least a first transmission circuit, a second transmission circuit, a first reception circuit, a second reception circuit, and a cross bar switch electrically connected to each of the first transmission circuit, the second transmission circuit, the first reception circuit, and the second reception circuit; programming the cross bar switch such that: the first transmission circuit is communicably coupled to the first reception circuit, and the second transmission circuit is communicably coupled to the second reception circuit; performing a hard fault test by passing a known pattern to the first reception circuit and the second reception circuit, wherein a first hard fault is identified in at least one of the first reception circuit or the first transmission circuit; programming the cross bar switch such that: the first transmission circuit is communicably coupled to the second reception circuit, and the second transmission circuit is communicably coupled to the first reception circuit; and re-performing the hard fault test by passing the known pattern to the first reception circuit and the second reception circuit, wherein a second hard fault is identified which isolates at least one of the first reception circuit or the first transmission circuit as the cause of the first hard fault.