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Altera_Forum's avatar
Altera_Forum
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9 years ago

Simulation fails if Modelsim time resolution is not 1ps

I'm using Quartus Lite 16.1 and the free Modelsim Alters SE. I have a VHDL behavioral simulation that seems to work fine at the default 1ps resolution but if painfully slow. My clock period is 20 ns,...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
9 years ago

I upgraded to the paid version of Modelsim and Quartus. It still does not work at "-t 10ps", but it is hundreds of times faster. The polite warning:

"Expect performance to be adversely affected."

should really be changed to

"Expect to die of old age before it finishes unless you upgrade to the paid version".

It still would be nice to figure out the time resolution issue.