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auCdl based netlisting

asetji

Hi,

I am under the process of migrating my design from an older PDK version to a newer version. In the older version, whenever I used to export my schematic to netlist via the export tool, at the end of the netlist of my block i used to get empty definitions of basic blocks like nfet/pfet  coming from the pdk library. However, in the newer pdk version, these empty definitions are not there anymore.

So, whenever I run LVS using this netlist, the LVS tools complains that the source netlist references but does not define the subckt. The LVS passes the moment I add these empty definitions.

I have checked that the export netlist form is same in new and old pdk.

The old pdk is using IC6.1.6, the newer pdk is using IC 6.1.7. For LVS, Calbre is being used.

BR

alok

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  • asetji
    Hello Andrew,

    I will ask the permission from my supervisor to raise it to the support. Meanwhile, I noticed one warning in the CIW saying something on the line

    WARNING (AUCDL-46): Unable to read netlist from file 'cdl.netlist' specified by the "CDL_NETLIST_FILE" property of cellview 'PDK/nmos/auCdl' because the file does not exist. Ignoring this property for the current run. To read the netlist from this file, ensure that the specified file exists or specify a valid file location.

    The component it complains about is the same which is missing from the netlist


    BR
    alok
Reply
  • asetji
    Hello Andrew,

    I will ask the permission from my supervisor to raise it to the support. Meanwhile, I noticed one warning in the CIW saying something on the line

    WARNING (AUCDL-46): Unable to read netlist from file 'cdl.netlist' specified by the "CDL_NETLIST_FILE" property of cellview 'PDK/nmos/auCdl' because the file does not exist. Ignoring this property for the current run. To read the netlist from this file, ensure that the specified file exists or specify a valid file location.

    The component it complains about is the same which is missing from the netlist


    BR
    alok
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