javierh.santiago
Junior Member level 2
I want to execute GLS with a timing model using PrimeTime. After generating the netlist, I successfully ran GLS with ModelSim using the .sdf file given by Synopsys DC (cmd: write_sdf sdf_dc.sdf). However, the problem arises when using the .sdf file generated by Prime Time with a timing model as I see below warnings in ModelSim:
# ** Warning: (vsim-SDF-3924) /home/v45175/mydata/ErrorEstimation/GLS/sdf_pf.sdf: Out of 729 SDF statements, 729 had null values.
The commands I am using with Prime Time are:
Basically, the above warning appears in modelsim when using "sdf_pt.sdf" instead of "sdf.dc.sf". Wondering if I am missing something when using Prime Time?
-Francisco
# ** Warning: (vsim-SDF-3924) /home/v45175/mydata/ErrorEstimation/GLS/sdf_pf.sdf: Out of 729 SDF statements, 729 had null values.
The commands I am using with Prime Time are:
set link_path "/path/myLibrary.db"
read_verilog netlist.v
link_design acc
set_max_delay 10 -from [all_inputs] -to [all_outputs]
report_timing -path full -delay max -max_paths 1 -nworst 1 -significant_digits 4 > report_pt_acc_99.txt ## NOTE that I am not seeing any issue with this report!!
write_sdf sdf_pt.sdf
read_verilog netlist.v
link_design acc
set_max_delay 10 -from [all_inputs] -to [all_outputs]
report_timing -path full -delay max -max_paths 1 -nworst 1 -significant_digits 4 > report_pt_acc_99.txt ## NOTE that I am not seeing any issue with this report!!
write_sdf sdf_pt.sdf
Basically, the above warning appears in modelsim when using "sdf_pt.sdf" instead of "sdf.dc.sf". Wondering if I am missing something when using Prime Time?
-Francisco