Technical data

50 Notes on USB Electrical Compliance Testing
3 Device Hi-Speed Tests
Running the Tests
1 Click Run Tests.
Test Instructions
The USB automated test application will prompt you to perform these
steps:
1 On the HS Electrical Test Tool software, click [Enumerate Bus] once.
You should capture the CHIRP handshake as in the below figure.
2 Click OK to close the Test Instructions dialog.
EL_28 Measure Device CHIRP-K Latency
EL_29 Measure Device CHIRP-K Duration
EL_31 Hi-Speed Terminations Enable and D+ Disconnect Time
Viewing Test Results
1 When the Testing Complete dialog appears, click OK.
The Results tab shows the test results.