Constraint Modes
Implementing USB constraints in OrCAD X Presto.
1. Open Constraint Manager by clicking on Tools > Constraint Manager in the toolbar menu.
2. Then within the Constraint Manager toolbar menu click on Analyze > Analysis Mode.
3. Check all options in the Electrical Modes and Electrical Options sections (see below).
4. Also enable all checks in the Physical and Spacing Categories as well.
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OrCAD X High-Speed Digital Design Guide
