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Altera_Forum
Honored Contributor I
847 Views

Simulation stops before simtime

Any ideas why a simulation would stop early? When I run the simulation, scopes show the full simtime. However, after about 2-15% of the simtime, simulation will stop. If I keep the simtime the same and simulate again, it will stop at the same number of cycles. If I reduce or increase the simtime, it will still stop at a different percentage. I have two models in my project. The other runs as expected. 

 

simtime = 36000 stops at T=2962 

simtime = 299600 stops at T=6062 

 

I'm using start time of 0 and stop time of simtime. Solver is set to Fixed-step discrete. 

 

Any input would be appreciated!
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3 Replies
Altera_Forum
Honored Contributor I
49 Views

I have no idea, but I have a few additional questions. 

When it stops can you run again? 

Which simulator are you using? 

How do you run a simulation?
Altera_Forum
Honored Contributor I
49 Views

When it stops can you run again? 

Yes. I get the chime sound same as when simulation completes normally. 

 

Which simulator are you using? 

Running inside Simulink. Only simulating the DSP system. 

 

How do you run a simulation? 

Ctrl-T to build and run 

 

Thanks!
Altera_Forum
Honored Contributor I
49 Views

Found the issue! There was a simulink stop block hidden deep down in a subsystem that was being triggered by a data check. This was triggering due to some bad data in my matlab workspace. I inherited that portion of the model from another engineer. Pretty obvious now that I found it!

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