Stats

  • Locked Locked
  • Replies 1
  • Subscribers 92
  • Views 13229
  • 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

Logic ECO

yamakazu

For logic ECO during physical implementation phase, can EDI handle a new netlist which is synthesized by another vendor's tool (ie DesignCompiler) as an input ? In this case, a placed/routed netlist was also synthesized by the same tool.

Parents

  • Not directly ...
    Synthesis tools combinational instance names are not deterministic , only the register names tend to be remain the same.
    Even though the reported gate statistics only highlight two additional ECO cells, you may have thousands of repurposed combinational instance names.
    The only way to get this re-synthesized netlist to work as a ECO on top of your current layout is to use Conformal ECO to remap your new netlist back to your original instance names.

    Plan B: if the ECO is simple enough, manually edit the original netlist.
    Plan C: take your new netlist and start the layout from scratch,
    The second loop through layout is much faster, the third loop layout is just tedious.
    ... Shawn

Reply

  • Not directly ...
    Synthesis tools combinational instance names are not deterministic , only the register names tend to be remain the same.
    Even though the reported gate statistics only highlight two additional ECO cells, you may have thousands of repurposed combinational instance names.
    The only way to get this re-synthesized netlist to work as a ECO on top of your current layout is to use Conformal ECO to remap your new netlist back to your original instance names.

    Plan B: if the ECO is simple enough, manually edit the original netlist.
    Plan C: take your new netlist and start the layout from scratch,
    The second loop through layout is much faster, the third loop layout is just tedious.
    ... Shawn

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.