• Skip to main content
  • Skip to search
  • Skip to footer
Cadence Home
  • This search text may be transcribed, used, stored, or accessed by our third-party service providers per our Cookie Policy and Privacy Policy.

  1. Community Forums
  2. Functional Verification
  3. non deterministic ff in verilog :

Stats

  • Locked Locked
  • Replies 2
  • Subscribers 64
  • Views 13140
  • 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

non deterministic ff in verilog :

archive
archive over 17 years ago

Hello, one of my FF's is implemented as follows : always @(posedge clk) data 1 / data 0 / prev_data 1 -> 0 i get different results on 2 run (after 1 cycle) one time 'data' remains 0, and on another run it rise from 0 to 1. i assume it caused since in the time of the clk rise, prev_data is falling, and therefore, 'data' doesn't succeed in sampling on time. is it possible that verilog is not deterministic in this case ? thanks,


Originally posted in cdnusers.org by zcabeli11
  • Cancel
Parents
  • archive
    archive over 17 years ago

    hello ajeetha,

    would it be ok of ii send you the wave results on email ?

    thanks,


    Originally posted in cdnusers.org by zcabeli11
    • Cancel
    • Vote Up 0 Vote Down
    • Cancel
Reply
  • archive
    archive over 17 years ago

    hello ajeetha,

    would it be ok of ii send you the wave results on email ?

    thanks,


    Originally posted in cdnusers.org by zcabeli11
    • Cancel
    • Vote Up 0 Vote Down
    • Cancel
Children
No Data

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.

© 2025 Cadence Design Systems, Inc. All Rights Reserved.

  • Terms of Use
  • Privacy
  • Cookie Policy
  • US Trademarks
  • Do Not Sell or Share My Personal Information