ScanWorks^® Scan Path Verification                                                          

Scan Path verification tests are very important to effective boundary-scan testing. Before any test is applied, you should always verify that the scan path is working correctly. Scan Path verification tests are created automatically by the Scan Path Discovery tool or by a single button click in the Scan Path verify dialog. The test developer is given several options to configure a test for a specific application.

To avoid placing devices in a test mode with unknown values on the devices’ outputs, Scan Path Verification tests begin by scanning data registers only. Once the basic data path is confirmed, instruction registers are tested and scans are performed to verify the length of the boundary scan register. The developer has several options to set alternative values for the device ID codes or user codes.

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