Article ID: 000085154 Content Type: Error Messages Last Reviewed: 03/28/2023

Internal Error: io_obuf_iterm->is_inverted() == comp_obuf_iterm->is_inverted()

Environment

    Quartus® II Subscription Edition
BUILT IN - ARTICLE INTRO SECOND COMPONENT
Description

The above internal error may appear when you design a custom memory interface with the ALTDQ_DQS MegaCore®. The internal error is caused by inconsistent output enabling assignments on the DQS and DQSn signals.

 

 

Resolution

Make sure you have the same assignments on both DQS and DQSn signals.

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This article applies to 21 products

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