New ContributorHello!
I ran in such problem:
Can’t find in documentation what Fanout in Interconnect row means.
In Cell row Fanout means fanout of output nets. But Fanout in IC row mysterious for me.
I ran into it, when investigated project with Hard Memory Controller IP-core.
Screenshot in attachment.
Super ContributorIf you click correctly, you should be able to click on the bottom left signal to see the fanout connection.
Try not to select any signal in the time quest when you locate it to chip planner.
New ContributorWhen I "Report Path in Chip Planner" and then double click on exact node in "Locate History" block, and click on "Generate Fanout Connections", I recieve Fan-out which located in "CELL" row below or above orange framed row, and NOT in "IC" row.
(Yes, I have counted for 200 arrows =)
Super ContributorNew ContributorThis fanout isn't displayed in Chip Planner.
New ContributorWhat do you mean under "bottom left" signal?
Super ContributorNew ContributorMaybe we have some misunderstanding.
I don't want to see where goes the connection, I wanna understand what mean numbers in row (which framed orange on picture). This number is NOT the fanout of certain cell because of it presented in the next or previous rows.
For a huge variety of nets in project IC fanout is 1. Because of what fanout for this ICs is more than one?
Thank you!
Super ContributorNew Contributorhttp://www.alterawiki.com/wiki/File:Cvrefdesign.zip
There is project from AlteraWiki.
After compilation open "Compilation Report" and report timing in TimeQuest from "TimeQuest Timing Analyzer" -> "Slow 1100mV 85C" -> "Setup Summary" -> "clk_clk".
First path contains node with IC Fanout = 10, like on screenshot from first post of this thread.
Super ContributorThanks,, I can see it.. IC means that InterConnect routing. Cell you can find it in https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/ug/ug-qpp-timing-analyzer.pdf page 3.
New ContributorSorry, but I can't see on this page clarification about interconnect fanout.
Can you clearly clarify what means that numbers (IC Fanout)?
Super Contributorhttps://courses.engr.illinois.edu/ece411/sp2019/mp/qts_qii53018.pdf page 7-55 got specify on it. It just means by the interconnect(element) fanout.
