How to generate LEF and lib files from Vituoso

Hello Greatrebel,

You could use the 'Abstract Generator' tool from which you could generate an abstract and then export the LEF from Virtuoso.

Generating a .lib file is very hard we have some tools but I'm not right guy to help.

We have ELC and DCM (Spectre MDL) and you could ask teh simulation guy.

If you are on Open Access Virtuos 6.1.2 and newer you could read directly the data into Encounterby giving the library for the reference cells and Encounter could generate an abstract on the fly but withvery limited set of information (no antenna and no detailed obstructions).

Could you please tell me what is in your analog macro block that you would liek to consider in term of timing ?

Maybe there is an other way than creating a .lib.

Thanks,

Alex

 Hi Alex,

 Thank you very much for your reply. Actually I wrote a post in Digital implementation forum.Please see /forums/p/15744/62235.aspx#62235

Kari replied to that post, saying I need lef and lib for the MS macro in order to integrate this macro into our chip P&R design in Encounter. Today I talked to my colleage who is in charge of the MS design and said we do not need to connect the MS macro to the digital part of the chip. It means this MS macro is independent component in the chip. For that reason, I am wondering whether only lef is enough to integrate the MS macro into our chip.

 Thanks again

 Hi,

You assumption is correct if you don't need to do timing extraction on the nets connected to the MS macro then just the LEF is needed.

Thanks,

Alex