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Altera_Forum
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11 years ago

How to generate random numbers in Verilog TB?

As we all know there is a system function $random in Verilog, which can be used to generate the random numbers. I used it in my simulation and call $random() 5 times, then I found each time I simulat...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

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Yes, the initial seed, and the fact that each thread (initial/always block) has an independent seed. $random has only one implicit global seed. See section 18.14 random stability of the 1800-2012 LRM

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Thanks very much, dave.