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Generating real random number in AMS

RFStuff

Dear All,

Is there any way we can generate real random number with a given mean and sigma  in AMS (without any any analog block) ?

Kind Regards,

  • You could use the $dist_normal function (which is standard Verilog) and produces an integer random number with the given mean and standard deviation, and then scale the result. For example:

    //

module forum7;

real rnd1;
integer seed;
parameter real dmean=1.0;
parameter real dstddev=0.1;
parameter integer dscale=1000;

initial begin
    seed=1;
    #2000 $finish;
  end

always #50 begin
    rnd1=($dist_normal(seed,dmean*dscale,dstddev*dscale)+0.0)/dscale;
    $strobe("dist_normal:",rnd1);
  end

endmodule
  • in reply to Andrew Beckett

    Dear Andrerw,

    Thanks  a lot.

    Kind Regards,

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