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Page 1 of 1 (4 items)
  • RE: LEC report additional FF
    Hi, This is a very interesting article, thank you very much! I do have a question regarding the undriven signal definition. I noticed that some unused ports on hierarchy module are also defined as undriven signal because they are defined as output ports. Is there anyway to filter them out? Thank you. Regards, Jun Dong
    Posted to Logic Design (Forum) by theodoredj on Fri, Aug 17 2012
  • RE: RE: LEC report additional FF
    Hi, It works, thank you. Regards, Jun Dong
    Posted to Logic Design (Forum) by theodoredj on Thu, Aug 16 2012
  • RE: LEC report additional FF
    Hi Chrystian, Thanks for your reply in your previous email, it solved the problem I reported. However, the same issue comes out again in my current project. First of all, please let me refresh the issue: Basically there’re redundant FFs in the design, DC was able to optimize them out but LEC can’t. These redundant FFs cause ...
    Posted to Logic Design (Forum) by theodoredj on Wed, Aug 15 2012
  • LEC report additional FF
    We have a huge design with many redundant FFs. It's impossible to clean up the RTL as they are coming from many different IP vendors. Synopsys DC optimized out all those redundant FFs as their outputs go to nowhere. However, LEC doesn't see this and failed on RTL VS Netlist check. We tried to turn on and off many flatten mode options, ...
    Posted to Logic Design (Forum) by theodoredj on Thu, Mar 1 2012
Page 1 of 1 (4 items)