Type: Answers

Type: Errata

Area: Intellectual Property



Critical Warning for Designs with Reconfiguration Megafunction

Description

This errata affects the Triple-Speed Ethernet MegaCore function.

When you compile a design that contains a Reconfiguration megafunction, the Quartus II software displays a warning message similar to the following:

Critical Warning: (High) Rule A103: Design should not contain delay chains. Found 4 delay chains.Critical Warning: Node "altera_tse_xcvr_reconfig:the_altera_tse_xcvr_reconfig|alt_xcvr_reconfig:altera_tse_xcvr_reconfig_inst|alt_xcvr_reconfig_offset_cancellation:offset.sc_offset|alt_xcvr_reconfig_offset_cancellation_av:offset_cancellation_av|alt_cal_av:alt_cal_inst|alt_cal_edge_detect:pd180_det|pd_xor"Critical Warning: Node "altera_tse_xcvr_reconfig:the_altera_tse_xcvr_reconfig|alt_xcvr_reconfig:altera_tse_xcvr_reconfig_inst|alt_xcvr_reconfig_offset_cancellation:offset.sc_offset|alt_xcvr_reconfig_offset_cancellation_av:offset_cancellation_av|alt_cal_av:alt_cal_inst|alt_cal_edge_detect:pd270_det|pd_xor"Critical Warning: Node "altera_tse_xcvr_reconfig:the_altera_tse_xcvr_reconfig|alt_xcvr_reconfig:altera_tse_xcvr_reconfig_inst|alt_xcvr_reconfig_offset_cancellation:offset.sc_offset|alt_xcvr_reconfig_offset_cancellation_av:offset_cancellation_av|alt_cal_av:alt_cal_inst|alt_cal_edge_detect:pd90_det|pd_xor"Critical Warning: Node "altera_tse_xcvr_reconfig:the_altera_tse_xcvr_reconfig|alt_xcvr_reconfig:altera_tse_xcvr_reconfig_inst|alt_xcvr_reconfig_offset_cancellation:offset.sc_offset|alt_xcvr_reconfig_offset_cancellation_av:offset_cancellation_av|alt_cal_av:alt_cal_inst|alt_cal_edge_detect:pd0_det|pd_xor".

The warning path resides in the Reconfiguration megafunction. You may safely ignore the warning messages.

This issue affects all design that contains a Reconfiguration megafunction.

Workaround/Fix

This issue has no workaround.This issue will be fixed in a future version of the Triple-Speed Ethernet MegaCore function.