WorkspaceManager_Err-UnusedSubPartInComponentUnused Sub-Part in Component_AD

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Parent category: Violations Associated with Components

Default report mode:

Summary

This violation occurs when a part of a multi-part component instance has not been used within the design. For example, three out of four parts for an instance of a 74HC32 component may have been placed and wired but the fourth has not.

Notification

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. Hovering over the object will display a pop-up hint that summarizes the violation.A notification is also displayed in the Messages panel in the following format:

Component <Identifier> has unused sub-part (<PartNumber>)

where

  • Identifier is the parent component, represented using the format Designator Library Reference (e.g., U11 74HC32)
  • PartNumber is an integer used to indicate which specific part is not being used (e.g., 1 represents part A, 2 represents part B, and so on).

Recommendation for Resolution

Place the unused part and connect its inputs to ground. To ensure the same root designator, copy an existing part for that component's instance and, after pasting, increment its part number accordingly.

Tip

  • Object hints will only appear provided the Enable Connectivity Insight option is enabled on the System - Design Insight page of the Preferences dialog. Use the controls associated with the Object Hints entry in the Connectivity Insight Options region of the page to determine the launch style for such hints (Mouse Hover and/or Alt+Double Click). 
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