What is most likely happening in this case is that the router starts by routing the clock nets, including the segments ending to non-clock pins, and does not revisit these routes later on, even to fix timing violation. Because the LUT5 is placed directly in front of FD/D, the net ...
Explore: 在多个优化过程中运行不同的算法,包括对非常高的扇出net的复制,最后一个阶段称为关键路径优化,其中物理优化的子集在【所有端点时钟的顶级关键路径】上运行,而不考虑冗余。 ExploreWithHoldFix: 在多个优化过程中运行不同的算法,包括hold violation fixing和复制高扇出nets。 技巧:Hold-Fixing只修复保持时间高于...
The hold violation from PCOUT to PCIN in Virtex UltraScale+ ES1 might be due to a speed file issue. The speed files have been already updated for Virtex UltraScale+ ES2 and Production devices to fix unexpected hold errors on the DSP cascade path. ...
Bug Fix: for multi-quad GTY based designs with line rate of more than 16.375 Gbps, the reference clock locations are added in XDC Other: UltraScale GT Wizard version upgrade. Changes in v11.2:New Feature: UltraScale GT Wizard Instance can be brought out of Aurora IP for UltraScale devices...
•ExploreWithAggressiveHoldFix: Rundifferentalgorithmsinmultiplepassesofoptimization,includingaggressivehold violationfixingandreplicationforveryhighfanous. TIP:Hold-Fixingonlyfixesholdtimeaboveacertainthreshold.Thisisbecausetherouteripected tofixanyholdslackviolationsthatarelessthanthethreshold. •AggressiveExplore:...
If the window cannot be hit, the router will take whichever route produces the smallest negative slack, either setup or hold. This differs from ISE which would never (unless there was a bug) introduce a setup violation to fix a hold violation. ...
The clock skew results in a Setup violation due to the long routing detour that was done on this path to fix the Hold violations that were seen with Vivado 2018.2.x and earlier. Typical situation where problem can arises: In this example, the primary clock created on the hierarchical pin ...
did you fix hold violation? Are you still seeing the tool hang during routing? --Syed LikeLikedUnlikeReply jkk@ms3e.dk (Member) 7 years ago **BEST SOLUTION** Hi Syed, I couldn't find a proper solution so I rolled back my latest updates and re-implemented which actually solved the pro...
did you fix hold violation? Are you still seeing the tool hang during routing?--Syed ---...
) Fix RTL Design Add Synthesis Attributes Use different Synthesis Options Save your constraints Run implementation Figure 2-49: Creating Constraints with the Synthesized Design X12981 Before proceeding to implementation, you must verify that your design does not include any major timing violation. ...