Forum Discussion
Altera_Forum
Honored Contributor
16 years ago1) The From Node is the same as the clock. Is this an input path?
2) The To Node, I believe, is for OpenCore Plus. Can you go to the Compilation Report, Analysis & Synthesis and look at the IP section. It tells how each core was licensed(Licensed, Opencore or Opencore Plus). I've seen cases where the OpenCore Plus inserts logic with gated clocks that has hold violations. At the end of the day it was something we ignored and everything worked fine, but worth complaining to the generator of the core(if that's it.) By the, way do a "report_timing -removal -to pzdyqx:nabboc|pzdyqx_impl:pzdyqx_impl_inst|FNUJ6967 -npaths 20 -detail full_path -file "removal.txt" THen add the removal.txt to this, and I can take a look at it. Bottom line this is code you can't modify and do much for, so it's probably something you can ignore. I know that's not a "good feeling", but if it's just the opencore plus stuff, then it goes away once you get the license. (And under Assignments -> Settings -> Fitter, do you have Optimize Hold Timing set to All Paths, and Multi-Corner Optimization checked?)