Knowledge Base Article

Internal Error: Sub-system: PCA, File: /quartus/fitter/pca/qi/pca_quartus_fpp_interface.cpp, Line: 91 ports.size() == 1

Description

Due to a problem in the Intel® Quartus® Prime Pro Edition Software version 20.4 or later, you might see this error during the compilation when a reset signal gets auto-promoted to a global net as an automatic optimization. 

Resolution

To work around this problem, use a GLOBAL_SIGNAL OFF assignment on the destination(s) reset or a global assignment on the source reset to prevent the global routing of the connections.

set_instance_assignment -name GLOBAL_SIGNAL OFF -from <source> -to <destination>

This problem is  fixed starting with the  Intel® Quartus® Prime Pro Edition Software version 22.3. 

Updated 3 months ago
Version 3.0
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