Multisim and Ultiboard

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slow simulations with signal source

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This simulation runs fine but then suddenly stops! Can anyone shed any light on why this may be? 

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Solution
Accepted by topic author pgo48

Hi,

 

I did not find that the simulation stops. I found that it significantly slows down when output of XFG1 goes low. This event appears to cause some difficulties for the simulator. Loosening the convergence tolerances helps. Go to Simulate->Interactive simulation settings->Analysis options->Customize. I suggest the following settings:

 

ABSTOL=1e-8

VNTOL=1e-4

RELTOL=0.01

 

Thanks

 

 

Max
National Instruments
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I have been having the same problem, suddenly slowing down at a certain time. Any suggestions on how to fix this?
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