Stats

  • Locked Locked
  • Replies 3
  • Subscribers 63
  • Views 14275
  • Members are here 0
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

RTL Compiler: is there a timing path between 2 FF?

magic

Hi,

I'm interested to know if there is an arc between 2 FF without using report timing (time consuming)

I have the from and to points and just need to know if there is a path between them.

thanks. 

 

 

  • johannes
    Hi magic,

    I think, something like this should work:

    foreach start [fanin -start YOUR-END-POINT] {[if {YOUR-START-POINT eq $start} {puts "Path exists"}]}

    YOUR-START-POINT has to be in RC-style, i.e. /designs/top/insta... (or you put a "[find /designs -pin YOUR-START-POINT]" instead)

    Hope this helps.

    Regards,
    Johannes
  • jflieder
    I believe you will need to use fanin –struct as the standard –fanin command is timing path based (I think).

     

    -Jeff-
  • magic

     thanks guys ! I'll try it soon.

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.