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What is the minimum pulse width required to register on a Propeller's counter m — Parallax Forums

What is the minimum pulse width required to register on a Propeller's counter m

ElectricAyeElectricAye Posts: 4,561
edited 2009-01-06 21:18 in Propeller 1
Hi all,

anybody out there happen to know what is the minimum pulse width required to register on a Propeller's counter module?

many thanks,
Mark

Comments

  • Beau SchwabeBeau Schwabe Posts: 6,568
    edited 2009-01-06 20:39
    ElectricAye,

    At 80MHz the granularity is 12.5ns, however if you are going to be sure and not miss the pulse then the nyquist width should be 25ns.

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    Beau Schwabe

    IC Layout Engineer
    Parallax, Inc.
  • ElectricAyeElectricAye Posts: 4,561
    edited 2009-01-06 21:18
    Beau,

    Okay, that's good news for me.

    Thanks for the super fast answer!


    smile.gif
    Mark
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