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- usage advanced blocks FFT blocks in project Standart blockset

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Altera_Forum

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04-20-2015
12:24 PM

735 Views

usage advanced blocks FFT blocks in project Standart blockset

1) I want to build a project using the HDL import, so I chose standart blockset.

2) I saw a working example of the combination of Standart and Advanced blockset - adapted_ad9856.mdl, and I want use blocks FFT and Cordic from advanced blockset. But errors has occuring: http://www.alteraforum.com/forum/attachment.php?attachmentid=10509&stc=1 http://www.alteraforum.com/forum/attachment.php?attachmentid=10508&stc=1 http://www.alteraforum.com/forum/attachment.php?attachmentid=10510&stc=1 http://www.alteraforum.com/forum/attachment.php?attachmentid=10511&stc=1 How I can implement input complex signal from Standart blockSet? Maybe there's HDL imports in the Advanced blockset? matlab file .mdl http://ge.tt/4fvtvqe2
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Altera_Forum

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04-21-2015
01:02 AM

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Hi all! I figured out the problem posed.

Model:https://www.alteraforum.com/forum/attachment.php?attachmentid=10516 Input func:https://www.alteraforum.com/forum/attachment.php?attachmentid=10514 Furrier coeff:https://www.alteraforum.com/forum/attachment.php?attachmentid=10515 OutputFunc:https://www.alteraforum.com/forum/attachment.php?attachmentid=10517 Now, I want to know: How can I reduce the number of Fourier coefficients. I want to make the Fourier transform of the period of 8192 points. But I do not want all of 8192 coefficients , I will have enough and no more than 20. Matlab file: http://ge.tt/1vjrite2
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Altera_Forum

Valued Contributor III

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04-21-2015
10:10 AM

12 Views

I solved all problems =) model works =)

I want to make the Fourier transform of the period of 8192 points. But I do not want all the 8192 coefficients, I will have enough and no more than 20. How i can get only first 20 and usage only 20 for retriving function, then improve performance and minimize the cost of memory for storing coefficients. Work model http://ge.tt/1vjrite2 - adaptedModelWithCordic.mdl
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Altera_Forum

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04-21-2015
10:11 AM

12 Views

I solved all problems =) model works =)

I want to make the Fourier transform of the period of 8192 points. But I do not want all the 8192 coefficients, I will have enough and no more than 20. How i can get only first 20 and usage only 20 for retriving function, then improve performance and minimize the cost of memory for storing coefficients.For more complete information about compiler optimizations, see our Optimization Notice.