VMM using Questa.6.6.

Hi Dave,

How r u?

I have solved that problem, by removing all the vmm log but i have one another query.

So are u there now?

Thanks and Regards,

Dreku

Hi Dreku,

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I have solved that problem, by removing all the vmm log but i have one another query.

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Great! Were you able to get useful examples from the Verification Academy?

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So are u there now?

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Yes.

Cheers,

Dave

Hi Dave,

I was not present so didn't reply you.

At this condition all the problems are solved.

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]Thank you so much for co-operate me and guide me.[/B]

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Cheers,

Regards

Dreku

Hi Dreku,

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At this condition all the problems are solved.

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Great!

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Thank you so much for co-operate me and guide me.

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You're most welcome.

Regards,

Dave

Hi Dave,

The same problem arises again.

I am trying to simulate testcases but it gives me following error of vmm_str_match:

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# ** Fatal: (vsim-160) /home/../../vmm-1.1.1a//sv/std_lib/vmm.sv(897): Null foreign function pointer encountered when calling 'vmm_str_match'# Time: 0 ns Iteration: 1 Process: /top/tb/#INITIAL#504 File: /home/../../vmm-1.1.1a//sv/std_lib/vmm.sv# Fatal error at /home/../../vmm-1.1.1a//sv/std_lib/vmm.sv line 897

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The HDL call sequence is:

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HDL call sequence:# stopped at /home/../../vmm-1.1.1a//sv/std_lib/vmm.sv 897 # called from /home/../../vmm-1.1.1a//sv/std_lib/vmm_log.sv 1904 # called from /home/../../vmm-1.1.1a//sv/std_lib/vmm_log.sv 1159 # called from /home/../../vmm-1.1.1a//sv/std_lib/vmm_log.sv 988 # called from /home/../../vmm-1.1.1a//sv/std_lib/vmm_test.sv 163 # called from testcase.sv 521

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I use following commands for compilation and simulation:

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compilation command:

vlog -sv +incdir+$VMM_HOME/sv +incdir+$VMM_HOME/sv/std_lib/vmm_str_dpi.c +incdir+$VMM_HOME/sv/std_lib/vmm_xvc_dpi.c main_testcase.sv

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simulation command:

vsim -c -solvefaildebug main -do "run -all;quit"

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If i use -Lf switch during simulation than design is not loaded.

Note: $VMM_HOME is set by:

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setenv VMM_HOME ~/../vmm-1.1.1a/

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Herewith I am attaching example files and standard library files.

Thanking You,

Dreku

Hi Dave,

The problem is solved by changing compilation and simulation commands.

I include +incdir+$vmm_home/shared/lib/linux in compilation command and give a path of /home/../../vmm-1.1.1a//shared/lib/linux/vmm_str_dpi in simulation command.

Now it is working properly.

:-P

Dreku

Hi Dreku,

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The problem is solved by changing compilation and simulation commands.

I include +incdir+$vmm_home/shared/lib/linux in compilation command and give a path of /home/../../vmm-1.1.1a//shared/lib/linux/vmm_str_dpi in simulation command.

Now it is working properly.

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Excellent!

I was about to post an apology that I did not get a chance to look at the problem yet :)

Cheers,

Dave

Hi dave,

I have one tricky question here. I scratched my head but don't get answer of it.

Its a question of OOPS.

I have a three classes A, B and C and their members a,b and c respectively.

Now i want to use members of this classes in another class D. Where first i declare instances of the above classes. Now I want to create objects in following fashion:

A= new(B.b);

B= new(C.c);

C= new(A.a);

It gives an error because in 1st statement B is not created yet and same for the second.......

So how can i pass the argument of another class' member.

:confused:

dreku

It's not good OOP practice to use constructor arguments this way. It's much better to keep class constructors as simple as possible and only use arguments as required by their base classes. So construct your 3 classes first, then use methods to set the members you want after all classes are constructed.

Dave Rich

Thank you Dave,

I am already using this way you suggest but in vmm_env's build method, we create instance of transactors.

Now here we create instances of driver, monitor and scoreboard. Now i want to use notifications of one class in to another. Before i used to pass notification of particular class in to another class as an argument (now i know, this is not a good strategy). But my question is that is there any way to use constructor arguments in this way?

Its just eager to know......

dreku...