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VUnit / vunit

VUnit is a unit testing framework for VHDL/SystemVerilog
http://vunit.github.io/
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Modelsim PE 10.6d vs Questa #876

Open apopa opened 1 year ago

apopa commented 1 year ago

Hi,

I am having a test working in Modelsim but fails in Questa. My supposition is that the transaction is fetched from the queue by bus_master. Did somebody encounter this kind of issue? Do you know how to debug it? The VHDL version is 2002.

Thanks, Adrian

LarsAsplund commented 1 year ago

We had a number of issues being discussed on Gitter (https://gitter.im/VUnit/vunit) lately related to problems with Questa. Since no maintainer has access to Questa it can be a bit hard to debug from our side. I'm working on this access issue though. Could you start by sharing your Questa version and a minimal code example that fails and a log på the error messages you get, if any. That way I may be able to give you some ideas on what to debug. Even if I can reproduce maybe others can.

apopa commented 1 year ago

Hi, I will ask if I can share any code. Anyways I do not think I can provide you the full BFM. To refine the question, should I go to VHDL 2008 instead of 2002? The logs will not help. The error is generated by unexpected_msg_type.

Thanks, Adrian

LarsAsplund commented 1 year ago

VHDL 2002 is a bit strange. The com package used by bus_master is only supported for VHDL 2008 and later. How do you compile the code? If you use VUnit for that you should have a call to the add_com method in your run script. That method will check that you have the correct standard and fail if that is not the case.

LarsAsplund commented 1 year ago

@apopa Any news on this? I got access to a Questa license and ran our test suite for the bus master. It works and I suggest that you do the same to see if we can zoom in on the problem without any of your proprietary code. Go to \<vunit install directory>/vunit/vhdl/verification_components and then do python run.py vunit_lib.tb_bus_master_pkg*. Does it work?

apopa commented 1 year ago

Hi, thanks for update. I had run the regression and is passing. For whatever reason the network_t seems to be 'Z' on Questa. I suppose that's the reason. Thanks, Adrian