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Propeller timing issue — Parallax Forums

Propeller timing issue

FriedVFriedV Posts: 77
edited 2011-09-14 12:41 in Propeller 1
Hi,
as I am not able to get a 6,25 Mhz Xtal, I tried to work with a 25 Mhz oscillator (Valvo X05860, 25Mhz),
but without succes.
I have attached 3 screens, 1. Oscilloscope trace of clock signal, 2. Spin code, 3. LSA Diagram.
What am I missing?
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Comments

  • Phil Pilgrim (PhiPi)Phil Pilgrim (PhiPi) Posts: 23,514
    edited 2011-09-14 12:41
    To use any of the PLL modes, your crystal or XIN frequency has to be between 4 MHz and 8 MHz, according to the datasheet, although 10 MHz works fine, too. 25 MHz is way out of range, though, and the PLL will not be able to lock.

    -Phil
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