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  3. Encounter does not stream out all cells into a GDS

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Encounter does not stream out all cells into a GDS

archive
archive over 17 years ago

Hello all, I used First Encounter v4.1 for place and route, and using following command, a GDS format of the design was made: streamOut ~/WiMax576_0.7.gds -mapFile ~/gds2_cmos90.map -libName WiMax576 -structureName decoder576 -stripes 1 -units 1000 -mode ALL now, in Cadence Virtuoso, all standard cells are appearing like red boxes, and Calibre-DRC stops reading the GDS by following error: ERROR: Cell FILLERCELL32 is referenced but not defined. *** Calibre finished with Exit Code: 4 *** Can someone help me please to resolve the error? Thanks, Ali


Originally posted in cdnusers.org by Naderi
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  • archive
    archive over 17 years ago

    -outputMacros uses the LEF abstract geometries for the standard cells which usually includes only pins and blockages to reduce the size of the data set as compared to gds which contains full detail of the standard cells. The risk you run when running geometric verification with LEF abstracts instead of gds is that the LEF abstract doesn't capture some detailed nuance that the gds contains and a violation can sneak through. The purpose of creating abstracts is to simplify the implementation tool's job so it doesn't have to consider every little geometry.

    In Virtuoso, I believe the reverse of "shift-f" is "ctrl-f".

    Hope this helps,
    Bob


    Originally posted in cdnusers.org by BobD
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  • archive
    archive over 17 years ago

    -outputMacros uses the LEF abstract geometries for the standard cells which usually includes only pins and blockages to reduce the size of the data set as compared to gds which contains full detail of the standard cells. The risk you run when running geometric verification with LEF abstracts instead of gds is that the LEF abstract doesn't capture some detailed nuance that the gds contains and a violation can sneak through. The purpose of creating abstracts is to simplify the implementation tool's job so it doesn't have to consider every little geometry.

    In Virtuoso, I believe the reverse of "shift-f" is "ctrl-f".

    Hope this helps,
    Bob


    Originally posted in cdnusers.org by BobD
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