![]() ![]() ![]() This allows rules to be applied to multiple objects and modified or applied to different objects, which would otherwise be painful to do if having to change rule attributes at the individual object level. Rules are separate from the objects - a rule is not added as an attribute of an object, but is rather added to the overall rule set and then scoped to apply to that object.The rules system built into the PCB editor has several fundamental features. ![]() Since the PCB editor is rules-driven, taking the time to set up the rules at the onset of the design process will enable you to effectively get on with the job of designing with the knowledge that the rules system is working hard to ensure success. ![]() With a well-defined set of design rules, you can successfully complete board designs with varying and often stringent design requirements. The system goes through the rules from highest to lowest priority and picks the first one whose scope(s) match the object(s) being checked. In this instance, a contention exists, which is resolved by a priority setting. It may arise that a design object is covered by more than one rule with the same scope. Multiple rules of the same type can be set up. Each rule represents a requirement of your design and many of the rules, e.g., clearance and width constraints, can be monitored as you work with the Design Rule Checker dialog. Certain rules are monitored when using additional features of the software, such as routing-based rules when using the Situs Autorouter to route a design.ĭesign rules target specific objects and are applied in a hierarchical fashion. The Home | Design Rules button in the PCB editor opens the PCB Rules and Constraints Editor dialog, which includes controls you can use to manage the defined design rules for the current PCB document.ĭesign rules collectively form an instruction set for the PCB editor to follow.
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