Signals with Multiple Drivers

Parent category: Violations Associated with Nets

Default report mode:


This violation occurs when a pin (with I/O Type Input or IO), or a sheet entry (with I/O Type Input or Bidirectional), is connected to multiple driving pins or ports on the schematic sheet.


If compiler errors and warnings are enabled for display on the schematic (enabled on the Schematic - Compiler page of the Preferences dialog) an offending object will display a colored squiggle beneath it. A notification is also displayed in the Messages panel in the following format:

Signal <SignalName> has multiple drivers,


SignalName is the name of the affected signal.

Recommendation for Resolution

With the violation selected in the Messages panel, use the Details region of the panel to cross probe to the affected signal pins/sheet entries. Trace the wiring from the pin/sheet entry to ensure it is connected as required, and modify if it is not.


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