Re: gEDA-user: verilog -> gschem

[John Doty <jpd@xxxxxxxxx>]

On Jul 7, 2011, at 4:31 PM, <frank@xxxxxxxxxxxxxxxx> <frank@xxxxxxxxxxxxxxxx> wrote:

>   I've looked at the mailing list archives and seen people ask but
>   haven't seen if anyone has code to take a verilog netlist and create a
>   gschem file from it. I don't care about what the schematic looks like,
>   can be ugly. I just need to get it into gschem format to run through
>   gnetlist to a different netlist format.
> 
>   Why? Well, I'm getting files from different tools (gschem along with
>   tools from other sites) and the common format I can generate is verilog
>   which works out well because I'm using icarus verilog for simulation.
>   The next step in the process requires running the design through
>   gnetlist but since gnetlist only reads gschem files as input I need to
>   get the verilog files to gschem to feed gnetlist.

Well, the back end is easy. See http://www.gedasymbols.org/user/john_doty/tools/pins2gsch.html.

This script generates a .sch file that contains connectivity data, but no useful graphics. The input is a trivial TSV representation of a netlist.

Given a parser for the input netlist format(s), the same approach could be used to merge netlists from other sources. Of course, the parser is the difficult part.

John Doty              Noqsi Aerospace, Ltd.
http://www.noqsi.com/
jpd@xxxxxxxxx




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