Technical data

222 Notes on USB Electrical Compliance Testing
7 Low and Full Speed Tests
Configuring the Tests
Connecting the Equipment
The USB automated test application will prompt you to perform these
connection steps:
1 Connect power supply to device/hub under test, and connect the
device/hub upstream port to the SQiDD board using a known good USB
cable.
2 Check I have completed these instructions.
Running the Tests
1 Click Run Tests.
Test Instructions
VBUS
The USB automated test application will prompt you to: measure the
voltage between Vbus and Gnd on the SQiDD board and record the value.
D+
The USB automated test application will prompt you to: measure the
voltage between D+ and Gnd on the SQiDD board and record the value.