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Altera_Forum
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15 years ago

problem on insatntiated pll (EP2C5F256I8)

Hi,

i have used EP2C5F256I8 in my project,which requires 16 mhz clk to be converted into 32 mhz clk and i have generated a pll using megawizard.I would like to know whether

- the output of the pll must be locked.

- and i have seven modules that is to be driven by pll clk, can it be connected by signal from instantiated pll block.

Kindly help me by providing some information. Thank You.

1 Reply

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

    --- Quote Start ---

    Hi,

    i have used EP2C5F256I8 in my project,which requires 16 mhz clk to be converted into 32 mhz clk and i have generated a pll using megawizard.I would like to know whether

    - the output of the pll must be locked.

    - and i have seven modules that is to be driven by pll clk, can it be connected by signal from instantiated pll block.

    Kindly help me by providing some information. Thank You.

    --- Quote End ---

    Hi,

    if you would like to check whether the pll is locked or not, you can define a lock signal

    with the megawizard. When you assign the signal to an FPGA pin your can check it

    easy with a scope. You can connect all your modules to the pll output.

    Kind regards

    GPK