Quartus 14 Avalon BFMs - Qsys generate error

Hi,

I'm designing a fairly complex system mostly based on Avalon MM architecure.

I want to simulate my slave components with the Avalon BFMs. Succesfully worked through the examples in the document "Introduction to Avalon Verification IP Suite".

Additionally, I watched this demonstration video: http://www.altera.com/education/demonstrations/qsys/simulation/simulation-online-demo.html (http://www.altera.com/education/demonstrations/qsys/simulation/simulation-online-demo.html)

There is still alot I have to understand, but I felt ready to simulate my first own QSys component with Avalon BFMs. The component already runs synthesized on a Cyclone V and I also have done Modelsim simulations with it where I wrote the Avalon MM master side in my own VHDL testbench. Since I felt that this is not a good verification, I now want to use the BFMs.

So I started QSys and selected the component that I want to verify from the Library. The component is written in VHDL and contains 1 file with the entity and architecture definition and 1 library file where I have put some system wide constants. As I said, that component (along withe the library) works fine in a system that I already have synthesized.

I exported all signals of that component like I learned in the above mentioned tutorials.

I go to the "Generate/Generate Testbench System . . ." menu entry of Qsys and select "Standard, BFMs for standard Qsys interfaces" and the simulation model should be created in VHDL (since my component is in VHDL and I think Modelsim Altere (free edition) does not support mixed-language simulation).

Okay, when I hit generate, it finally comes up with this error:

Error: ads1158_interface_0: ads1158_interface does not support generation for VHDL Simulation. Generation is available for: Quartus Synthesis.

Error: Generation stopped, 2 or more modules remaining

Info: ads1158_bfm_test_tb: Done "ads1158_bfm_test_tb" with 12 modules, 35 files

Error: ip-generate failed with exit code 1: 2 Errors, 0 Warnings

Error: There were errors creating the testbench system.

Can somebody please explain what this error message means and how I can get over that?

Thanks,

Maik