Why are my source_sop and source_eop being optimized out of my multichannel FIR Compiler II implementation?

Description

Due to a bug in the Quartus® II FIR Compiler II Megafunction, multichannel implementations may result in the source_sop and source_eop being optimized away, which may cause problems in your design or in gate-level simulation.

Resolution

To workaround this issue, modify your auk_dspip_avalon_streaming_controller_hpfir.v/vhd file contained in your project folder/<fir_variation_folder>.  In this file, at the bottom of the architecture block, just before the end struct; line, add the follow assignment:

source_packet_error <= sink_packet_error;

This issue will be fixed in a future release of Quartus II software.