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Negative waveform time expression

 
 
erikxkl erikxkl is offline
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Join Date: Apr 2009
Posts: 1
 
      04-16-2009
I have a simulation that runs fine for awhile but then throws up with the following error:

RUNTIME: Fatal error: RUNTIME_0033 Negative waveform time expression.
KERNEL: Time: 244526 ns, Iteration: 0, Instance: /oxcslc_chip0/rd_inst/pll_2_inst/altpll_component/STRATIXIII_ALTPLL/M4, Process: line__10777.
KERNEL: stopped at delta: 0 at time 244526 ns.
VSIM: Error: Fatal error occurred during simulation.

I am using Aldec Riviera-PRO Simulator build 2008.02.2891. Does anyone know what this means and how to fix it? Thanks.
 
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JohnDuq JohnDuq is offline
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Join Date: Dec 2008
Posts: 88
 
      04-17-2009
This error looks like an iteration loop could not be solved. What are you trying to do? If you provide more detail we may be able to help.
 
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