Technical data

162 Notes on USB Electrical Compliance Testing
5 Host Hi-Speed Electrical 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_33 CHIRP Timing Response
EL_34 CHIRP K Width
EL_34 CHIRP J Width
EL_35 SOF Timing Response
The USB automated test application will prompt you to: Unplug the known
good device and reattach it.