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Ultrasim: individual accuracy setting on subcircuit level ?

baenischfau

Hi all,

 

I'm currently simulating a big mixed signal block, consisting of two big blocks. The instance block I0 is

pure digital logic, instance I1 is mainly analog but also includes some digital parts. I'm using Ultrasim

for verification but due to the analog parts I'm forced to use a quite strict accuracy setting to get the

results about right. However this setting is killing the digital part ...

 

I know that some other simulators offer the possibility to define accuracy levels for each instance in

a design, e.g. set I0 to Digital Fast and I1 to Analog. Is something like this possible with Ultrasim ?

 

Best Regards

 

Andi

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  • Andrew Beckett

    You probably should have started a new thread, but any settings for a digital block will be ignored (this doesn't influence the partitioning between the two solvers). If you don't specify the sim_mode or speed, then it will use whatever has been set on Simulation->Options->FastSPICE (UltraSim) on the Main tab.

    Regards,

    Andrew.

Reply
  • Andrew Beckett

    You probably should have started a new thread, but any settings for a digital block will be ignored (this doesn't influence the partitioning between the two solvers). If you don't specify the sim_mode or speed, then it will use whatever has been set on Simulation->Options->FastSPICE (UltraSim) on the Main tab.

    Regards,

    Andrew.

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