<@U018LA3KZCJ> I'm struggling to get `spef -path` ...
# openroada
Anton Blanchard
02/19/2022, 11:00 AM@User I'm struggling to get
spef -path Copy code
read_spef -path microwatt_0.soc0.processor.register_file_0.register_file_0 Copy code
[ERROR STA-0433] path instance 'microwatt_0.soc0.processor.register_file_0.register_file_0' not found. Copy code
sta::get_name [lindex [sta::get_cells microwatt_0.soc0.processor.register_file_0.register_file_0*] 0]
microwatt_0.soc0.processor.register_file_0.register_file_0/FILLER_0_1006Anton Blanchard
02/19/2022, 11:01 AMA tarball of everything https://ozlabs.org/~anton/junk/microwatt-sta.tar.gz
d
Dinesh A
02/19/2022, 3:10 PMread_spef format was
read_spef -path <instance path> <spef file>
example:
read_spef -path mprj $::env(USER_ROOT)/spef/user_project_wrapper.spef
m
Matt Liberty
02/19/2022, 3:27 PMare you reading in the verilog or just the DEF?
Matt Liberty
02/19/2022, 3:36 PMthe escaped name in verilog
\microwatt_0.soc0.processor.register_file_0.register_file_0
probably requires some escaping when passed to read_spef otherwise it will interpret the . as hier delim
a
Anton Blanchard
02/19/2022, 7:34 PMI did think it could be that and tried various combinations like
{microwatt_0\.soc0.processor\.register_file_0\.register_file_0}m
Matt Liberty
02/20/2022, 3:23 AMI can see from your read_lef that you are running this in openroad. You need to run it in standalone 'sta'. OR doens't support verilog hierarchy but sta does
Matt Liberty
02/20/2022, 3:24 AMsta sta.tcl gives no read_spef errors for me
a
Anton Blanchard
02/20/2022, 3:51 AMThanks @User I missed that detail, and I was using the openroad executable. Looks to be working now! Thank you
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