Which Def file do we need? And if we don't have it...
# timing-closurem
Matt Venn
10/29/2021, 4:32 PMWhich Def file do we need? And if we don't have it is there a way to regenerate it?
j
jeffdi
10/29/2021, 9:32 PM
If you used OpenLane to harden your digital block or user project wrapper, then you should have a corresponding DEF file in the def directory under your project root. see the example in the caravel_user_project repo.
m
Matt Venn
10/30/2021, 7:36 AMI use openlane but inside the openlane dir
Matt Venn
10/30/2021, 7:36 AMhere's my def files
Matt Venn
10/30/2021, 7:36 AMimage.png
Matt Venn
10/30/2021, 7:37 AMit's not clear to me which one to use
Matt Venn
11/01/2021, 2:09 PMping
j
jeffdi
11/01/2021, 11:14 PM
@User in the def directory in your project root
jeffdi
11/01/2021, 11:14 PM
user_project_wrapper.def
m
Maximo Balestrini
11/04/2021, 1:20 PMdigging a little bit around the .tcl flow files it seems that the .def file that goes in the /def directory (when you run
make user_project_wrapperresults/routing👍 1
Maximo Balestrini
11/04/2021, 1:24 PMin case you run the flow directly in openlane
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Matt Venn
11/04/2021, 2:31 PM@User, I'm asking about if we have hardened a design with openlane, now we have the files in the image above. I copy the gds and lef to caravel_user_project and build the wrapper
Matt Venn
11/04/2021, 2:31 PMbut we have 16 projects that all have gds, def & lef
Matt Venn
11/04/2021, 2:31 PMand I don't know what def to use
Matt Venn
11/04/2021, 2:32 PMwhich of the above in the picture ^^
Matt Venn
11/09/2021, 2:00 AM@User @User
j
jeffdi
11/09/2021, 3:32 AM
@User the correct def would be in the results/routing directory. in this case
./results/routing/vga_clock.def👍 1
jeffdi
11/09/2021, 3:34 AM
typically it would be
def/user_project_wrapper.def