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Astro after layout and route

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ee171

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icfb generate spef

hi,

Do you know if Astro can output verilog after placement and route into a verilog file that can be check with testbench? Can Astro output something that can be read in from CAdence icfb (gds2)? Thank you so muc.h
 

how to generate sdf

Yes we can generate a verilog netlist. this netlist along with SPEF can be given to PT to dump out a SDF file. This netlsit and SDF are used to do gate level simulations and verification in front end
 

cant you generate sdf file directly from astro ??
 

Don't use sdf from astro , it isn't accurate. SDF is a timing delay table, SPEF is spice similar. If you use SDF , some timing is not realy.
 

Dear Sir,

You can generate sdf file from Astro.
In general case, i will use rc-extractor(calibre-XRC, Star-rcxt...) to generate a spef or dspf file into primetime to generate a sdf file to do post-sim.
This flow will have a accuracy result.

Best Regards,
Chyau
dr.farnsworth said:
cant you generate sdf file directly from astro ??

Added after 3 minutes:

Dear sir,

as for testbench, astro will only re-order scan chain.
as for icfb, astro can stream out a gds2 file into icfb.

Best Regards,
Chyau

ee171 said:
hi,

Do you know if Astro can output verilog after placement and route into a verilog file that can be check with testbench? Can Astro output something that can be read in from CAdence icfb (gds2)? Thank you so muc.h
 

U can use
auStreamOut command to generate gds2 file for icfb
and
auVerilogOut command to generate netlist for simulation..
 

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