Electric technologies are more complex than
standard fabrication technologies. They also
contain higher-level pieces such as transistors
and contacts. This cannot be inferred easily.
Therefore, Electric ignores all of the design
rule and other information found in LEF files.
-Steven Rubin
At 01:57 AM 4/28/2014, you wrote:
Wouldn't it make sense to parse the layer+DRC+ERC rules from the LEF/DEF file?
The Open-Source placer/router CAPO comes with a
pretty complete LEFDEF parser under BSD license
(and is using these rules for it's place+route
decisions:
http://vlsicad.eecs.umich.edu/BK/PDtools/Capo/);
and the OpenAccess/SI2.org project published a
LEFDEF parser under GPL-compatible Apache2
license: http://www.si2.org/openeda.si2.org/projects/lefdefnew/.
-Jack
Am Freitag, 4. April 2014 16:37:50 UTC+2 schrieb Steven Rubin:
The LEF import error you got told you that there
was an unknown layer in the LEF file. Assuming
you gave it TSMC LEF, then it refers to layers
unknown to Electric (at least until you define a TSMC technology).
As far as the XML file goes, you are confused by
the extension. The XML file you got from TSMC is
completely different from the "technology XML"
files used by Electric. The Technology Wizard
asks you questions about the design rules.
Answer them and it will give you technology XML file.
-Steven Rubin
At 01:11 AM 4/4/2014, you wrote:
Good Morning,
I have the TSMC design kit for the 180nm
technology composed by library (*.lef), gds
file (*.map) and technology file (*.tf) all for cadence tool.
I want load the foundry information for my
design but I don‬™t succeed to do it. I
could know as load this information in electric.
If I try to import the *.lef file in electric
it return me the following message:
“Importing '/D:/UniversitÃ
/Dottorato%20di%20Ricerca/Tecnologie/TSMC/vtvt_tsmc180_release_2/vtvt_tsmc180_lef/vtvt_tsmc180_lef/vtvt_tsmc180.lef'
Error: didn't find in initialize a layer to
match 'CC' Line 172: No layer 'cc' defined for
RECT Error importing /D:/UniversitÃ
/Dottorato%20di%20Ricerca/Tecnologie/TSMC/vtvt_tsmc180_release_2/vtvt_tsmc180_lef/vtvt_tsmc180_lef/vtvt_tsmc180.lef
as LEF format. Job 'Import External Library' failedâ€
If I try use the technology wizard, create the
xml file and import it; electric return me the following message:
“Importing preferences...Invalid preferences
format (liline 16):
org.xml.sax.SAXParseException; lineNumber: 16;
columnNumber: 94; L'elemento radice
"technology" del documento deve corrispondere
alla radice DOCTYPE "null"....preferences
imported from /D:/Electric/Tecnologie/TSMC_CMOS018_DEEP_Ver2.xmlâ€
>
If you need of other information please ask me.
Please Help ME!!!
Regards, Gineuve
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