Article ID: 000083567 Content Type: Troubleshooting Last Reviewed: 11/03/2016

Why do the FIR II Megacore’s parameters revert to default values after upgrading to a newer version of the Quartus software?

Environment

BUILT IN - ARTICLE INTRO SECOND COMPONENT
Description

Due to a problem in the Quartus® Prime software version 15.1 and earlier, the user-assigned parameter values of the FIR II Megacore will not be retained during an upgrade.  They will instead be changed back to default values after upgrading to a newer Quartus Prime version.

Resolution

To work around this problem, open the top-level MegaWizard file in a text editor before opening/upgrading in the newer version of Quartus. Search for the following line and change it to the Quartus version (e.g. version="15.1") that you are currently using.

For example, if you are using Quartus Prime 15.1, you would change this line:

// Retrieval info: <instance entity-name="altera_fir_compiler_ii" version="15.0" >

to:

// Retrieval info: <instance entity-name="altera_fir_compiler_ii" version="15.1" >

This problem is fixed beginning with the Quartus Prime software version 16.0.

Related Products

This article applies to 1 products

Intel® Programmable Devices

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