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Simulators >> AMS Simulators >> Simulator cannot determine necessary timestep
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Message started by Pavel on Oct 25^th, 2006, 3:51am

Title: Simulator cannot determine necessary timestep
Post by Pavel on Oct 25^th, 2006, 3:51am

Hello

Is there any option that could make the Spectre simulator "more intelligent" in timestep choice.
When I display excursion of V(out) on some seconds simulation time

parameter real FREQ = 13.56M;
parameter real AMPL = 1;

analog V(out) <+ AMPL*sin(`M_TWO_PI*FREQ*$abstime);

I see horisontal line.

Is defining the value of Maxstep in Simulator settings only choice for credible simulations.

Thanks in advance.

Pavel.

Title: Re: Simulator cannot determine necessary timestep
Post by Daniel_Platte on Oct 25^th, 2006, 5:07am

$bound_step might solve your problem "smarter" than limiting maxstep. See Verilog-AMS LRM 2.2 section 10.8 for example.

Daniel

Title: Re: Simulator cannot determine necessary timestep
Post by Pavel on Oct 27^th, 2006, 1:31am

Ok, Thanks.