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Altera_Forum's avatar
Altera_Forum
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13 years ago

Help with modelling with MODELSIM

Hello there again, I tried to simulate my first code in MODELSIM. Can someone help me simulate it properly, at the moment I am just a beginner and would like to know if there is any window which can ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

your signal qs needs to be initialised to zeros first at declaration. Quartus wouldn't care about that but modelsim assumes unknown state until you put zero thus the assignment qs(i) <= not qs(i) will always stay U in Modelsim but will toggle in quartus.