Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronic 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.

Register Log in

Virtuoso - Export GDSII

Status
Not open for further replies.

elektor

Member level 3
Joined
Mar 19, 2002
Messages
57
Helped
1
Reputation
2
Reaction score
0
Trophy points
1,286
Activity points
412
uu/dbu meaning in cadence

Hi,

I use GDSII file from Silicon Ensemble. Now I know that this GDSII it is "layout does not include standard cells".
When I've put this file in Cadence CIW ( Import - Stream ) I've obtained warning : " (setup file ) - scale was not float " and nothing else.

I've tested a lot of possibilites ( UU/DBU ) - No effect..

Regards
Elektor

PS. When I've put DEF file from SE everything was ok, but when I've tried Export Stream , problem has come back ....

PS. Main obiective : Put "full" GDSII to Calibre DRC, because GDSII from SE doesn't work.
 

napong

Junior Member level 3
Joined
Jan 6, 2002
Messages
28
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
124
gds scale uu/dbu

Before importing, you should have standard cells layout in CIW that have name correspond to you LEF in SE.
When you Import->Stream, add option retain library definition.
This option will search the cell name in CIW that match with the cell name from SE and use that cell in CIW as a standard cell.
Hope it could solve your problem.
napong.
 

ttspice

Member level 3
Joined
Dec 24, 2001
Messages
64
Helped
1
Reputation
2
Reaction score
1
Trophy points
1,288
Location
Republic of Taiwan
Activity points
555
gdsii stream layer purpose spnet

I think SE only exports metal, via and cell outline....


# example of SE script
# gds2 out
#
OUTPUT GDSII MAPFILE "gds2.map" LIBNAME "top" STRUCTURENAME "top" FILE "top.gds" REPORTFILE "gds2out.jnl" UNITS Thousands ;


Just make sure your mapfile and units are correct, then import the gds
with standard cell libary as well.


# example of GDS map
#
# Silicon Ensemble 5.X Stream layer mapping table
#-----------------------------------------------------------------------------
#gds layer SE layer Layer object type
#==================================

15 CONT VIA;
16 METAL1 NET;
16 METAL1 VIA;
16 METAL1 SPNET;
17 VIA12 VIA;
18 METAL2 NET;
18 METAL2 VIA;
18 METAL2 SPNET;
27 VIA23 VIA;
28 METAL3 NET;
28 METAL3 VIA;
28 METAL3 SPNET;
62 NAME CELL ;
29 VIA34 VIA;
31 METAL4 NET;
31 METAL4 VIA;
31 METAL4 SPNET;'
32 VIA45 VIA;
33 METAL5 NET;
33 METAL5 VIA;
33 METAL5 SPNET;'
39 VIA56 VIA;
38 METAL6 NET;
38 METAL6 VIA;
38 METAL6 SPNET;'
21 VIA67 VIA;
22 METAL7 NET;
22 METAL7 VIA;
22 METAL7 SPNET;'
 

siboy

Member level 3
Joined
Apr 23, 2006
Messages
63
Helped
2
Reputation
4
Reaction score
2
Trophy points
1,288
Activity points
1,717
virtuoso gdsii

What's the meaning of "via""net""spnet" after each metal layer?
Thanks!
 

sayuri

Newbie level 6
Joined
Oct 16, 2008
Messages
11
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,333
Re: gds scale uu/dbu

napong said:
Before importing, you should have standard cells layout in CIW that have name correspond to you LEF in SE.
When you Import->Stream, add option retain library definition.
This option will search the cell name in CIW that match with the cell name from SE and use that cell in CIW as a standard cell.
Hope it could solve your problem.
napong.
thank you for the suggestions, I done the second point and it's works, but I still have some missing layer, like all metal layer except METAL4.

when I generate the stream file, I generate the lef file to, but I don't know how to make sure your first suggestion.
 

Status
Not open for further replies.
Toggle Sidebar

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top