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  3. RTL compiler Verilog_out netlist

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RTL compiler Verilog_out netlist

superman321
superman321 over 16 years ago

Im trying to get a verilog (structural) netlist of a synthesized, mapped design and I would like to have it in "positional" format rather than the deafult named format.

I have tried using the attribute "set_attribute write_vlog_port_association_style positional" which give me an error: 

[TUI-19] The object for this attribute is missing or invalid. [TUI-19] [set_attribute]
        : You must specify a 'instance' object type as the final (fourth) argument when setting the 'write_vlog_port_association_style'  attribute.

Any suggestion on how to use this attribute or any other attribute that may give me a structural "positional" format rather than the default "named" format?

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  • grasshopper
    grasshopper over 16 years ago

     

    Hi superman321,

    seems like you missing the object you are applying your attribute to.

    Remember

    set_attribute <attribute> <value>  <object>

    so you probably intended

    set_attribute write_vlog_port_association_style positional  /

    if it was a root level attribute

     good luck,

    gh-
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  • superman321
    superman321 over 16 years ago
    gh thanks for the reply!...the error message is exactly abt the object part and i have no idea what i should set it to.. could you elaborate more on the "root level attribute" thanks one again
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  • grasshopper
    grasshopper over 16 years ago

     Hi Superman321,

     from RC command-line

    rc:/> get_attr -h write_vlog_port_association_style *

    Usage: get_attribute <string> [<object>+]

        <string>:
            attribute name
        [<object>+]:
            object of interest (must be unique)

        attribute category: write

        attribute name: write_vlog_port_association_style
              category: write (controls write output)
           object type: instance
           access type: read-write
             data type: string
         default value: default
                  help: Determines the style for writing out port connections of an instance. The style can be default(i.e. same as in the
                        user design input), positional or named.

    Note that the attribute you mention is applicable to instances hence you should be applying it to an instance. You should have something like

    set_attr  write_vlog_port_association_style positional  [find /  -instance <instance name>]

     gh-

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