Article ID: 000075759 Content Type: Error Messages Last Reviewed: 09/11/2012

Internal Error: Sub-System: FSAC, File: /quartus/fitter/fsac/fsac_composite_io_mgr.cpp, Line: 8364

Environment

BUILT IN - ARTICLE INTRO SECOND COMPONENT
Description

This error may be seen in the Quartus® II software versions 11.0 and earlier when you probe a register that is packed into the output I/O cell using SignalProbe in Stratix® III or Stratix IV devices. Such registers cannot be probed, but the Quartus II software incorrectly lists the registers in the Node Finder with the SignalProbe filter.

To work around this problem in the Quartus II software, trace the fanin of the register and probe its driver instead of the register itself. Alternatively, prevent the register from being packed into the output I/O cell.

This problem is scheduled to be fixed in a future release of the Quartus II software.

Related Products

This article applies to 4 products

Stratix® IV GX FPGA
Stratix® III FPGAs
Stratix® IV GT FPGA
Stratix® IV E FPGA