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  1. USDoov
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    1. CO@FarhadA fair point, but I still see a minimum input frequency of 1 MHz for spartan 3a. 1 MHz/16 is still >>> 1 kHz. Even if he's using spartan 3-e it's still off by an order of magnitude of what he wants. More to the point when I use DFS only in coregen the only option I have is clkfx (clkdv isn't even available so the previous analysis doesn't even hold). The minimum output frequency according to coregen is 5 MHz for a spartan 3a-dsp. Is there a way to get to 1 kHz output from a DCM on a spartan 3 device?
      singulars
    2. COThanks for the reply @EML. I think I'm going to go with Morgan's approach (and of course with your detail). I can indeed precompute everything -- wrote a matlab script to get the coefficients/make the LUT. BTW num2fixpt is a nice function that I didn't know existed till I wrote my own version. I'm actually on a spartan 3a-dsp, which has several multipliers built in. That stated I think the latency of the multiplication is nicer than the division. I'd give you the answer vote, but Morgan was first :)
      singulars
    3. COIt appears as though my lack of understanding was actually in the way Rect is defined. I assumed that it was top left point/bottom right point, but it is in fact top left point, width, height. That said, I really doubt this is the most efficient manner to do what I'm trying to do. Any thoughts would be much appreciated. Thanks.
      singulars
 

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