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Honored Contributor
Honored ContributorProblem in controlling FFT megacore function???
Hi, I'm currently working in a project, in which I use FFT block to correlate signal. I got stuck in simulating the fft block. My block do fft for 1024 points. I use a clock 1Mhz to clock. I simu...
Altera_ForumHonored Contributor
Honored Contributor --- Quote Start --- This could be a couple of things. Have you asserted source_ready? Have you included a global clock enable, which will also need to be asserted? What are you using for your input? --- Quote End --- Thanks, I got it done by using a small state machine to control sop and eop, the source_ready is set to '1'. and then WAIT for 2x1024 clock cycles. I didin't wait for such a long time. But still question, why distance between sop and eop is 1024? what 's different if I use distance between sop and eop other than FFT points? By the way, I didn't use **** enable. Is that ok? The use 8 bit input for PRN code. That's wasted!!!! ]
