Altium NEXUS Documentation

Mismatched Bus or Wire Object on Wire or Bus

Modified by Susan Riege on Feb 28, 2019
All Contents

Parent category: Violations Associated with Buses

Default report mode: 

Summary

This violation occurs when a wire object is incorrectly connected to a bus, or a bus object is incorrectly connected to a wire. For example, port A might be connected to a bus, but the correct bus label syntax (e.g., A[0..1]) has not been entered for the port's name. In effect, the port is a single signal (or wire) object that is now erroneously connected to a bus.

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:

<ObjectIdentifier> at <Location> placed on a <ObjectType>

where:

  • ObjectIdentifier represents the mismatched object, which can be either a bus or wire object (e.g., pin, port, power port, net label, off-sheet connector, sheet entry). The identifier will appear in one of the following two formats:
    • For a bus – Bus <Object> <Name> (e.g. Bus Net Label GND_BUS[..]).
    • For a wire – Wire <Object> <Name> (e.g. Wire Port TXD).
  • Location is the X,Y coordinates for the object's electrical hotspot.
  • ObjectType is the object on which the offending object has been placed – either a wire or a bus.

Recommendation for Resolution

With the violation selected in the Messages panel, use the Details region of the panel to quickly cross probe to the offending object. To resolve the issue, consider the following:

  • Is the connection correct? – should a bus connecting to the object really be a wire and vice versa?
  • Is the object defined correctly? – for a bus object, ensure that the object's name is specified using the correct bus syntax in the form <Name>[<LowIndex>..<HighIndex>] or <Name>[<HighIndex>..<LowIndex>]. For example, a byte-wide data output port might be specified as DAT_OUT[7..0]. For a wire object, ensure that the object's name defines a single signal and is not defined using bus syntax.

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). 
Found an issue with this document? Highlight the area, then use Ctrl+Enter to report it.

Contact Us

Contact our corporate or local offices directly.

You are reporting an issue with the following selected text
and/or image within the active document:
ALTIUM DESIGNER FREE TRIAL
Altium Designer Free Trial
Let’s get started. First off, are you or your organization already using Altium Designer?

If would like to speak with a representative, please contact your local Altium office.
Copyright © 2019 Altium Limited

In that case, why do you need an evaluation license?

If would like to speak with a representative, please contact your local Altium office.
Copyright © 2019 Altium Limited

Got it. You actually don’t need an evaluation license for that.

Click the button below to download the latest Altium Designer installer.

Download Altium Designer Installer

If would like to speak with a representative, please contact your local Altium office.
Copyright © 2019 Altium Limited

Please fill out the form below to get a quote for a new seat of Altium Designer.

By clicking “Get Your Free Trial”, you are agreeing to our Privacy Policy.
You may receive communications from Altium and can change your notification preferences at any time.

If you are on Altium Subscription, you don’t need an evaluation license.

If you are not an active Altium Subscription member, please fill out the form below to get your free trial.

By clicking “Get Your Free Trial”, you are agreeing to our Privacy Policy.
You may receive communications from Altium and can change your notification preferences at any time.

Why are you looking to evaluate Altium Designer?

If would like to speak with a representative, please contact your local Altium office.
Copyright © 2019 Altium Limited

You came to the right place! Please fill out the form below to get your free trial started.

By clicking “Get Your Free Trial”, you are agreeing to our Privacy Policy.
You may receive communications from Altium and can change your notification preferences at any time.

Great News!

Valid students can get their very own 6-month Altium Designer Student License for FREE! Just fill out the form below to request your Student License today.

By clicking “Get Your Free Trial”, you are agreeing to our Privacy Policy.
You may receive communications from Altium and can change your notification preferences at any time.

Got it. You can download a free Altium Designer Viewer license which is valid for a 6 months.

Please fill out the form below to request one.

By clicking “Get Your Free Trial”, you are agreeing to our Privacy Policy.
You may receive communications from Altium and can change your notification preferences at any time.

That’s great! Making things is awesome. We have the perfect program for you.

Upverter is a free community-driven platform designed specifically to meet the needs of makers like you.

Click here to give it a try!

If would like to speak with a representative, please contact your local Altium office.
Copyright © 2019 Altium Limited

Got it. You can download a free Altium Designer Viewer license which is valid for a 6 months.

Please fill out the form below to request one.

By clicking “Get Your Free Trial”, you are agreeing to our Privacy Policy.
You may receive communications from Altium and can change your notification preferences at any time.