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Viewing Classes in Simvision

DylanC

Hello all,

I've just started creating a more robust test bench structure using classes.  I've never tried to use classes in verification before and so I'm having some trouble understanding how to view them in Simvision.

I've created a simple testbench with various classes for running the tests.  I can see the classes in Simvision waveform window but there is no data for them.  I do have data for the DUT signals and the testbench seems to be working correctly.  

Is there something I need to do to make sure the data for classes is recorded?  I'm using the $shm_probe to create the database but I don't see a switch for collecting class data.  

Thank you for any assistance.  I'm pretty new to Simvision so I'm probably missing a lot. 

Dylan

Parents

  • As Tudor says, you need to probe the dynamic objects; this cannot be done from the $shm_probe system task, you need to use the Tcl commands. In general we don't recommend using the system tasks as they aren't very flexible and lead to bad habits like always dumping waves even for regression runs.

  • in reply to StephenH

    I suspected the $smh_probe was probably not going to work.  I'm working on an existing design and they used $shm_probe so I didn't want to change it unless knew it was the problem.  Thank you for the info.  I'll have to change to using the probe command instead of system tasks.  

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  • in reply to StephenH

    I suspected the $smh_probe was probably not going to work.  I'm working on an existing design and they used $shm_probe so I didn't want to change it unless knew it was the problem.  Thank you for the info.  I'll have to change to using the probe command instead of system tasks.  

Children
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