simulation of FFT megacore in modelsim

[Altera_Forum]

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]

--- 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]

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]

I suggest to try with the post syntesis simulation. 

 The HDL models of the megafunctions are often not behavioural and need full P&R in orer to be simulated.   Hope this helps.

[Altera_Forum]

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]

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

[Altera_Forum]

just to clarify, all you need is the 3rd party EDA simulation model .vo/.vho which you have to enable in the MegaWizard 

 glad its working now

[Altera_Forum]

i have a problem in simulating fft megacore in quartus  

 i performed following steps  1. added all file generated by megacore wizard (ip toolbench) of FFT in quartus and compiled it successfully.(including .vho $_tb.vhd)  2. created a vector wave form file and added all signal using node finder.  3. Exported .vwf to .vht   4. Assignment>>EDA tool setting>>Simulation  5. in nativelink setting   >> Compile test bench (clicked test bench)  >> new   >>in top level module in test bench (<name>_vhd_vec_tst)  >> added .vwf(from step 2) file in testbench file 6. TOOLs>>EDA simulation tool  i am not getting any signal only straight lines in all input and output i think i have problem in native link setting  plz guide me where i am wrong .

[Altera_Forum]

>> added .vwf(from step 2) file in testbench file 

 shouldn't you add the .vht you created from the .vwf?