Stats

Locked Locked
Replies 1
Subscribers 91
Views 13878
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

Connectivity Violation

Hi,

My design has 5 inputs/outputs and some timing critical nets. When I check connectivity violation after place and route the design by using 45nm technology file (lef file), I got the following error:

Database Units: 2000
Design Boundary: (0.0000, 0.0000) (1874.8750, 1850.0700)
Error Limit = 1000; Warning Limit = 50
Check all nets
Net a: no routing.
Net b: no routing.
Net s: no routing.
Net c: no routing.
Net t: no routing.

Begin Summary
5 Problem(s) (ENCVFC-98): Net has no global routing and no special routing.
5 total info(s) created.

However, when I used another technology file, it works fine without any errors. Is this error because of the metal size and thicknesses?

Thank you,

Soha

Parents

Kari over 8 years ago

hard to tell without seeing the design. did you visually check to see if the routing was there in the first case?
Cancel
Vote Up 0 Vote Down

Cancel

Reply

Kari over 8 years ago

hard to tell without seeing the design. did you visually check to see if the routing was there in the first case?
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.