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Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

cyclone3 pll

hi, please clarify the following

1. i used altpll megafunction to generate1733 Hz with 8.192 MHz as input. it accepted but while i simulating it is not giving o/p with that frequency.

2. for all simulations it is giving 700ns delay for output

3.how to cascade plls to get low o/p frequencies

4. in pll what are the functions of signals pfdena,locked

5. how the multiplication and division factors of pll mega functions are related to the M,N, COUNTER VALUE.

6.how to get other o/ps(except dedicated o/p) of pll to externally i/o pins.

with regards

3 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor

    hi,

    How do you have to generate, can I know the method by which you have details because I do a similar project and can be only in the steps or there are errors.
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor

    ok if it possible a like a details or plz pictures to more understand.thanks