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JSLY's avatar
JSLY
Icon for New Contributor rankNew Contributor
4 years ago

How to turn off or reduce optimization in questa sim

I downloaded and installed questasim started edition 2021.2 for quartus prime lite 21.1 and the tool opens up and compiles and starts a simulation, but nothing shows up in the "OBJECS" window, almos...
GLT1's avatar
GLT1
Icon for Occasional Contributor rankOccasional Contributor
4 years ago

Adding -voptargs=+acc to the questa command line will turn off all optimizations and allow all signals to be visible.

Maulik0405's avatar
Maulik0405
Icon for New Contributor rankNew Contributor
1 year ago

This works when also removed the following flag from the vsim - command.

-novopt

Overall the command should be looking like this.

vsim -voptargs=+acc -c -t 1ps -L cyclonev_ver -L altera_ver -L altera_mf_ver -L 220model_ver -L sgate_ver -L altera_lnsim_ver work.firstBlockTest_vlg_vec_tst