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casting problem

mwhite

I modified the SPI OVM testbench that can be downloaded from Mentor's web site.  The testbench is customized to test our design.  I have been using Mentor's Questa tool to run simulation while we evaluate the tool.  The testbench has worked with Questa.  We are also evaluating Cadence's Incisive.  I started to compile and run simulation with Incisive.  It apprears to compile OK but $cast does not seem to work right.

    seq_item_port.get_next_item(req);
    $cast(cloned_item, req.clone());
    ap.write(cloned_item);

This works fine with Questa but not with Incisive.  The data members in req are defined but not cloned_item after $cast.

Is there any reason that this does not work with Incisive?  Questa was sourceing OVM-2.1.2 source code.

Thank you!

 

Parents

  • Just a few! ;-)

    When the OVMWorld.org website was still vendor-independen, you would have found the Cadence-contributed OVM reference methodology kit on the user contributions page. Mentor now run the OVMWorld site and have blocked Cadence from accessing it, so I don't know if Cadence's contributions are still accessible there.

    You can certainly find the UVM equivalent on UVMWorld.org (this site is owned by Accellera so should remain vendor-independent).

    There is also a wealth of OVM / UVM material shipped with Incisive, as part of our SoC Verification Kit. The Kit is basically a full SoC design using lots of Cadence's own design IP, almost entirely open-source. We provide not just the example testbench code but also full self-paced workshop / training material for pretty much all verification flows (block-level OVM/UVM, block-to-system reuse, hw/sw co-verification, formal properties, lo-power etc etc). The best thing to do is crank up the help tool "cdnshelp" from your Linux/Solaris prompt.
    In the hierarchy of help pages, look for "Incisive Verification Kits". Hopefully the image will attach here to give you a pointer to it.

     We use these workshops to deliver training, so they're really comprehensive. Plus the Kit contains a lot of "free" VIPs to give you good examples to get you moving (of course our commercial VIPs are a league above this in terms of features, support etc, but that's another story ;-) )

     

Reply

  • Just a few! ;-)

    When the OVMWorld.org website was still vendor-independen, you would have found the Cadence-contributed OVM reference methodology kit on the user contributions page. Mentor now run the OVMWorld site and have blocked Cadence from accessing it, so I don't know if Cadence's contributions are still accessible there.

    You can certainly find the UVM equivalent on UVMWorld.org (this site is owned by Accellera so should remain vendor-independent).

    There is also a wealth of OVM / UVM material shipped with Incisive, as part of our SoC Verification Kit. The Kit is basically a full SoC design using lots of Cadence's own design IP, almost entirely open-source. We provide not just the example testbench code but also full self-paced workshop / training material for pretty much all verification flows (block-level OVM/UVM, block-to-system reuse, hw/sw co-verification, formal properties, lo-power etc etc). The best thing to do is crank up the help tool "cdnshelp" from your Linux/Solaris prompt.
    In the hierarchy of help pages, look for "Incisive Verification Kits". Hopefully the image will attach here to give you a pointer to it.

     We use these workshops to deliver training, so they're really comprehensive. Plus the Kit contains a lot of "free" VIPs to give you good examples to get you moving (of course our commercial VIPs are a league above this in terms of features, support etc, but that's another story ;-) )

     

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