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Altera_Forum
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14 years ago

The problem about FFT simulation

I want to use MATLAB to simulate the FFT function designed by Altera. I run the Matlab testbench generated by Quartus, but there is always the error Undefined function or method 'Sfftmodel'...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

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I want to use MATLAB to simulate the FFT function designed by Altera. I run the Matlab testbench generated by Quartus, but there is always the error

Undefined function or method 'Sfftmodel' for input arguments of type 'double'.

Error in ==> fft256_model at 41

[roc,ioc,eoc] = Sfftmodel(rin,iin,N,THROUGHPUT,ARCH,DATA_PREC,TWIDDLE_PREC,INVERSE);

Dose anyone could help me solve this problem?

Thanks

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I got the sfftmodel.mexw32 file from altera's website, and simply changed the extention to .dll. My computer is of 32 bits, but I keep getting the error message: tsfftmodel.dll can't be loaded correctly. Could somebody tell me how to fix the problem? Besides, I simply put this sfftmodel.dll file in the same folder along with all the other files such as fft_32k_tb.m and fft_small_tb.m.

Also, is there a way to change this sfftmodel.mexw32 (or sfftmodel.dll) into sfftmodel.m file?

Thanks in advance.