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Altera_Forum
Honored Contributor
Honored ContributorSome issues about functional simulation
Hi,all when i do the functional simulation for my projection,i find that some of the initial values of my signals are not cleared to "0".how can i do to clear them? thanks.
Altera_ForumHonored Contributor
Honored ContributorI don't know, if you are talking about Quartus or ModelSim functional simulation? At least with ModelSim, uninitialized signals show a value of 'U'. That means, e.g. a frequency dividing counter can't work, unless you initialize it.
In VHDL, setting an initial value with the signal definition is the most simple method, e.g.signal counter : unsigned := (others => '0');
