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Altera_Forum's avatar
Altera_Forum
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17 years ago

External clock in SOPC builder

Hi

I have an external clock (1Hz) which i would like to use as an input to my system. I would use this clk for the 7segment displays on the Altera DE2 to show the time. I would like to know how to add this signal in SOPC builder (do i just add a clock and set it to 0.000001MHz in SOPC?). Afterwards, i would like to use it for the 7segment displays.

Can anyone help please? Or maybe find a way to do an internal clock using the 50MHz clock to drive the 7segs?

I am using an DE2 dev board.

Thanks in advance

1 Reply

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

    Are you planning on using NIOS?

    If yes, you could simply add an "Interval Timer" to your system and set the period to 1 second. The 50 MHz clock will then be divided down to give you an interrupt once a second.