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  1. #1
    Junior Member level 2
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    Innovus Command Questions

    As a beginner to VSLI design, I am using and learning Innovus these days and have two questions. Hope someone could help me.

    1) set_db.
    The user manual has some sample flows with codes. It usually contains 'set_db' commands to set values for some attributes (the manual calls it database object.) These object usually is the attributes belong to some settings.
    My question is that are the following commands perform the same functions:
    Code:
    # Command 1
    set_db cts_target_skew 50ps
    # Command 2
    set_ccopt_mode -cts_target_skew 50ps
    2) Invalid Commands:
    There might be some commands mentioned in the manual but will report 'Invalid Commands' error, which is so wired that I feel I might make some mistakes.
    Code:
    create_clock_tree_spec -out_file ccopt.spec
    source ccopt.spec
    And the error is
    Code:
    **ERROR: (IMPSYT-6693): Error message: top.tcl: invalid command name "create_clock_tree_spec".
    Similar error would be reported when I was trying to use
    Code:
    clock_design
    Will really appreciate any help.

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  2. #2
    Advanced Member level 5
    Points: 9,019, Level: 22

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    Re: Innovus Command Questions

    Quote Originally Posted by EEPuppyPuppy View Post
    As a beginner to VSLI design, I am using and learning Innovus these days and have two questions. Hope someone could help me.

    1) set_db.
    The user manual has some sample flows with codes. It usually contains 'set_db' commands to set values for some attributes (the manual calls it database object.) These object usually is the attributes belong to some settings.
    My question is that are the following commands perform the same functions:
    Code:
    # Command 1
    set_db cts_target_skew 50ps
    # Command 2
    set_ccopt_mode -cts_target_skew 50ps
    2) Invalid Commands:
    There might be some commands mentioned in the manual but will report 'Invalid Commands' error, which is so wired that I feel I might make some mistakes.
    Code:
    create_clock_tree_spec -out_file ccopt.spec
    source ccopt.spec
    And the error is
    Code:
    **ERROR: (IMPSYT-6693): Error message: top.tcl: invalid command name "create_clock_tree_spec".
    Similar error would be reported when I was trying to use
    Code:
    clock_design
    Will really appreciate any help.
    Cadence has a really terrible time keeping the documentation synced with the new versions. Just stop using these commands and look for the new equivalent ones.
    Really, I am not Sam.



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