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 verilogin problem: modules are imported twice 

Last post Wed, Aug 28 2013 12:43 AM by Howel. 2 replies.
Started by Howel 27 Aug 2013 03:17 AM. Topic has 2 replies and 345 views
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  • Tue, Aug 27 2013 3:17 AM

    • Howel
    • Not Ranked
    • Joined on Mon, Dec 24 2012
    • Posts 4
    • Points 80
    verilogin problem: modules are imported twice Reply

     Hi All,

    I'm importing some verilog files into  dfII library to generate a schematic to run a transistor level simulation.The library for standard cells are created first. When I use verilogin, it can proceed without errors but there is a weird problem, it will place each module twice, one with proper connections and one without any connections.

    For example, following is a simple verilog file, containing only one inverter.

    module test (A, B, VDD, VSS);

    input A;

    output B;

    input VDD;

    input VSS;

    INHDV1 inv1 (.VSS ( VSS ), .VDD ( VDD ), .I ( A ), .ZN ( B ) );

    endmodule

    INHDV1 is a standard cell and it has ports VDD/VSS/I/ZN. But the imported schematic has two inverters, where one connects to VDD/VSS/A/B correctly, and the other has no connections at all.

    I tried some options in verilogIn form and read the document. No clues. We are using IC5141usr6.

    Could anybody give some suggestions?

    Thanks,

     Howel

     

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    • Post Points: 20
  • Tue, Aug 27 2013 9:41 PM

    Re: verilogin problem: modules are imported twice Reply

    Howel,

    I don't see this problem using IC5141 USR6. It works fine for me...

    Do you have a particular version of the digital simulators in your path? From UNIX, what do you get if you type "ncvlog -version" (I was running without ncvlog in my path).

    Regards,

    Andrew.

    • Post Points: 20
  • Wed, Aug 28 2013 12:43 AM

    • Howel
    • Not Ranked
    • Joined on Mon, Dec 24 2012
    • Posts 4
    • Points 80
    Re: verilogin problem: modules are imported twice Reply

     Hi Andrew,

    Very curious, the problem is gone after I switched to IC5141user5. Actually I'm using only ihdl from ic5141usr5 since this time I tried to use command line. After preparing the ihdl_files needed, I specify the path to call ihdl residing in 5141usr5, now everything is ok. Don't know why.

    The version for ihdl in 5141usr5 is 5.1.0 06/20/2007, and for 5141usr6 it's 5.1.0 10/28/2008.

    And ncvlog's version is 8.20-s024. ( But in ncvlog.log, it said 5.50-E115. )

    Perhaps there are some compatible issues in my environment. 

    Thanks a lot,

    Howel

    • Post Points: 5
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Started by Howel at 27 Aug 2013 03:17 AM. Topic has 2 replies.