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Altera_Forum's avatar
Altera_Forum
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16 years ago

FFT Source_valid

Hello everyone,

i have some trouble with the fft core (quartus 8.1)

i am using a 512 fft with streaming interface.

the fft core does not give any output. after transfering some

data packages, the sink_valid kept high, no sink/source_errors, the core should assert the "source_valid" high - but it isn't.

please can anybody help me? I have attached the timing.

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  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    --- Quote Start ---

    Hi, Luis_Altera,

    I am having the same problem with you. Could you please tell me more specifically on where to check the "generate a clk_ena pin"? I am using Quartus II 9.0 sp2.

    Thanks a million!

    --- Quote End ---

    Hello,

    I am using Quartus II 9.0 too.I have got my data,but the source_valid is always low.I don't know how to find the "Global Clock Enable".I saw the word "Step 1: Parametrize" -> "Implementation Options",but can you tell me where is the "Parametrize"? And if you can tell me what cause the source_error,it will be better . My english isn't good but I hope you can understand my mean . my box :hanyang-sheep@163.com. I hope to receive you message.Please send mail to my box:hanyang-sheep@163.com .