Schematic to PCB Constraints
Set constraints in the schematic then transfer to the PCB side from Capture to Presto.
Image: Showing the flow of constraints from schematic to PCB, highlighting the Constraint Manager in the schematic phase.
Purpose: To establish and transfer design constraints from the schematic phase to the PCB layout phase, ensuring a robust
design foundation.
Tip: In modern hardware and PCB design, constraints should always start from the schematic, then transfer to the PCB. Any
changes in the PCB constraints and features should be synchronized with the schematic as well, but the schematic must
always drive the constraint management. Let's explore the Constraint Manager in OrCAD X Capture to Presto PCB Editor.
Steps:
1. Open the Constraint Manager in OrCAD X Capture (schematic tool) by going to the menu and selecting PCB - Constraint
Manager. The Enable Constraint Manager prompt may appear.
2. Check the "Do not show this message again" box, then the Migrate Constraints window will appear.
3. If you already have a PCB layout with constraints, you should select the Migrate constraints from the PCB layout option.
4 www.cadence.com
OrCAD X Constraint Management Guide
