Hello, I'm trying to set the max delay for some p...
# openlane
a
Hello, I'm trying to set the max delay for some path in my design. I'm using commands in the following structure: set_max_delay -from sub_module_inst_name/module_input[0] -to sub_module_inst_name/sub_sub_module_inst_name/module_input[1] 2 However, these delays are not applied to the design. I get errors that say object '----' not found no valid objects specified for -from (same for -to) It seems that I'm not setting the constraints correctly, is the constraint I wrote above written in the correct format for OpenLane? If you have any examples for similar sdc constraints it would be helpful. Thanks
m
I have no experience setting delays but does
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set_max_delay -from sub_module_inst_name.module_input[0] -to sub_module_inst_name.sub_sub_module_inst_name.module_input[1] 2
work?
a
Thank you. Unfortunately that didn't work either.
🙁 1
v
have you referrred to OpenSTA document?
a
Hello, I checked it and saw that there might be some mistakes in my syntax. Using the document I have the following constraint:
set_max_delay -from [get_pins -hierarchical {submodule/wire_name}] -to [get_pins -hierarchical {submodule/subsubmodule/wire_name}] delay_amount_in_ns
But this is giving me the same issue.