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import hspice to virtuoso

Nav270 over 11 years ago

Hi, Im importing a hspice netlist to virtuoso environment using

file>import>spice> HSPICE.

Im getting the schematics imported properly but they do not have symbol.

The symbols are not generated.

Please let me know if Im missing something.

Parents

Quek over 11 years ago

Hi Nav270

spiceIn will only generate the symbols if the cells are used in another cell within the same netlist. E.g.

.subckt abc ...
...
.ends

spiceIn will not create a symbol for cell abc if it has not been instantiated in another subckt.

.subckt abc ...
...
.ends

.subckt topCell ...
XI1 ... abc
...
.ends

spiceIn will create a symbol for cell abc because it has been used in topCell.

You can either create a dummy top level subckt which contains the instantiation of all the subcells or use a skillscript to generate symbols for the imported cells. The following 2 COS articles will be able to help you:

11288840 : SKILL: Automatically Create or Generate Symbols for a Schematic Library
11693840 : Perlscript to prepare a cdl netlist for import as Virtuoso 5141/614 schematic

Best regards
Quek
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Quek over 11 years ago

Hi Nav270

spiceIn will only generate the symbols if the cells are used in another cell within the same netlist. E.g.

.subckt abc ...
...
.ends

spiceIn will not create a symbol for cell abc if it has not been instantiated in another subckt.

.subckt abc ...
...
.ends

.subckt topCell ...
XI1 ... abc
...
.ends

spiceIn will create a symbol for cell abc because it has been used in topCell.

You can either create a dummy top level subckt which contains the instantiation of all the subcells or use a skillscript to generate symbols for the imported cells. The following 2 COS articles will be able to help you:

11288840 : SKILL: Automatically Create or Generate Symbols for a Schematic Library
11693840 : Perlscript to prepare a cdl netlist for import as Virtuoso 5141/614 schematic

Best regards
Quek
Cancel
Vote Up 0 Vote Down

Cancel

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