Stats

Locked Locked
Replies 4
Subscribers 91
Views 3185
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

Need space between all cells during placement in Encounter - how?

Good afternoon everybody,

I'm trying to find a way to add space between all of my cells when they are placed using Encounter. The process I'm working out of only has one metal layer, so I need to leave plenty of room for routing with M1 and poly bridges only. I have found Cell, Instance, and Module Padding in the documentation, but they do not seem to work reliably. Perhaps I am configuring it incorrectly? It seems that no matter how I tweak the settings, I still get 5-10% of the cells abutted together, with plenty of spare space in the floorplan for them to spread out. Any ideas?

Thanks!

Kari over 12 years ago

can you post your specifyCellPad command?
Cancel
Vote Up 0 Vote Down

Cancel
lcaley over 12 years ago

I'm still in the early stages of the project. I'm still trying to get the "how do I?'s" out of the way, so this spacing is by no means scientific. The documentation said a wildcard (*) was valid, and since I need spacing on every cell, that seemed to be the way to go. Here's what I entered:
specifyCellPad * 10

Edit: <code></code> tags don't work on this board, apparently.
Cancel
Vote Up 0 Vote Down

Cancel
Kari over 12 years ago

so you'll have seen that this command adds space on the right side of the cells. but if a cell is flipped on the y-axis, then the padding is on the left, and that's how you can add up with two cells abutted.
try:
specifyCellPad * -left 10 -right 10
Cancel
Vote Up 0 Vote Down

Cancel
lcaley over 12 years ago

That seems to have done it. Thank you so much!
Cancel
Vote Up 0 Vote Down

Cancel

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.