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Altera_Forum
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11 years ago

spikes in modelsim

Hi all, When simulating a basic counter (74161) I get spikes in modelsim – but I am unable to zoom in on those spikes in the wave window – see attachment. When analyzing the signals I se...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

A timing simulation? You should see spikes when looking at combinatorial nodes. As long as you've met timing, they all settle before the next clock edge.