simulation of FFT megacore in modelsim

Question

Hi all,

I am trying to simulate the FFT megacore using modelsim. I compile the project and open modelsim separately. I add my design files to a created work directory, including the .vo file. It is not working and i'm a bit stuck on where to go from here, even after reading the tutorials and documentation. Can anyone give a step by step guide on how to simulate the FFT core after compilation in quartus?

Thank you,

Gabriella.

altera_forum · Answer

--- Quote Start ---

Hi all,

I am trying to simulate the FFT megacore using modelsim. I compile the project and open modelsim separately. I add my design files to a created work directory, including the .vo file. It is not working and i'm a bit stuck on where to go from here, even after reading the tutorials and documentation. Can anyone give a step by step guide on how to simulate the FFT core after compilation in quartus?

Thank you,

Gabriella.

--- Quote End ---

Hi,

you would like to run simulation after P&R ? Did you get a functional mishaviour or do have a problem with the flow ( e.g. Modelsim compile error ) ?

Kind regards

GPK

altera_forum · Answer

I wish to first do a standalone simulation of the FFT megacore within modelsim. I first compile fft.v, fft.vo, fft_syn and the automatically generated testbench into the work folder. The simulations runs but it seems that the input_real.txt and input_imag.txt files aren't bein read into the simulation because sink_real and sink_imag remain empty. Do I need to include any additional libraries to get it to work?

altera_forum · Answer

I suggest to try with the post syntesis simulation.   The HDL models of the megafunctions are often not behavioural and need full P&amp;R in orer to be simulated.   Hope this helps.

altera_forum · Answer

I'm still struglling to determine what is wrong. After instantiating the FFT megacore (with clock enable), I perform A&E. In modelsim, I compile the relevant files successfully, but still the core does not respond. I thought the only requirement for functional simulation was the generation of the .vo and synthesis files when the core is generated.

I don't know how to do full P&R without violating the license.

altera_forum · Answer

Apologies, I've finally got it working. It was a nativelink problem. Thank you all for helping.

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simulation of FFT megacore in modelsim

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