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Reset issue with Specman 6.1

Fransis

Hi to everybody,

I got the following issue when running ncsim_specman (specman 6.1 linked with the ncsim simulator IUS06.11.USR3) in GUI mode.

I run a first test; then I reset the simulator, reload the specman environment, give the test command and then run once again. At this point the simulator enters a sort of unconsistent state: specman is unable to drive anything to the bound signals and everything stucks to U (undefined) in the waveform viewer (simvision). I need to shut down the simulator and start it again from command line to be able to execute another test.

This issue happens when the first test I execute ends without DUT errors; if at least 1 DUT error is raised, then it is possible to correctly reset the simulator, reload the specman environment and start another test.

I tried all the various reset synchronicity options between Specman and the simulator, but this did not solve the problem. Such issue is not present in Specman 5.1 and ncsim IUS57.QSR2.

Has anybody got any idea how to solve this issue?

Have all a nice day

Regards 

Parents

  • Hi Fransis

    Are you using VHDL for RTL?

    If so, I strongly believe that what you are experiencing is a bug in that IUS version, thatis fixed in 6.11-s8 in the 6.11 branch or  6.2-s3 and higher.

    Please try one of those versions, and see if that solves it.

     Regards

Reply

  • Hi Fransis

    Are you using VHDL for RTL?

    If so, I strongly believe that what you are experiencing is a bug in that IUS version, thatis fixed in 6.11-s8 in the 6.11 branch or  6.2-s3 and higher.

    Please try one of those versions, and see if that solves it.

     Regards

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