Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Prevent the deletion of certain delay cells in genus?

Status
Not open for further replies.

Anklon

Member level 1
Joined
Dec 1, 2013
Messages
32
Helped
0
Reputation
0
Reaction score
0
Trophy points
6
Activity points
310
Prevent deletion of certain delay cells in genus ?

I need a module where multiple D-flipflops are connected sequentially and their signal propagation requires a certain delay. I have designed the delay cell and instantiate its modules in the connection where those delay's are need. But when I use this in Genus, due to optimization process, it delete the delay cells(It keeps my Dflipflop cells properly).How could I tell genus not to delete this modules ?


Capture.PNG

I think turning of optimization may prevent this. Can I do that?

Thanks for your time.

- - - Updated - - -

If I use "set_attribute preserve true DLYX" , it only preserve the cells but delete the connections. I want them to be preserved along with the connections.
 

Re: Prevent deletion of certain delay cells in genus ?

You don't add delay cells in genus because it is not hold aware. Makes no sense to add delay cells during logic synthesis, only in physical synthesis. You created a problem that doesn't exist.
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top