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flat netlist

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Hi all,

i tried to generate a flat netlist with RTL Compiler! i used the following command before elaborate command

set_attribute    ungroup   true   /hdl_libraries/default/architectures/top

and although after "synthesize  -to_generic" i see the message:

"Removing temporary intermediate hierarchies under top"

but the final netlist is hierarchical!

thank you!
masoud


Originally posted in cdnusers.org by bahrami

  • Hi Masoud,

    I never used that attribute but is there any reason why you cannot use the 'ungroup' command after elab. That is what I have done in the past for RC and DC flows. I cannot think of any reasons why that would not work.

    good luck,
    gh-


    Originally posted in cdnusers.org by grasshopper

  • Hi,

    thank you for the comment.

    after elaborate,i set the ungroup attr. for all the instances in the design. but the final netlist is not flat. 

    with other tools (dc, ambit) was quiet easy to do this. maybe i should check the other attribute in the script, to see if there is conflict with ungroup.

    br,
    masoud


    Originally posted in cdnusers.org by bahrami

  • Hi Masoud,

    did u try 'ungroup -flatten' This is the identical use model to DC and works just as well in RC. I just tried it and it seemed to work as advertised. Are you seeing something different ?

    gh-


    Originally posted in cdnusers.org by grasshopper

  • Hi,

    great! with this command it works properly.

    thanks again,
    masoud


    Originally posted in cdnusers.org by bahrami

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