Crystal Signal? Where is it???


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  1. #1
    Join Date
    Mar 2005
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    Denmark
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    Hi Dave,

    I'm not the one that is trying to messure on pin 13

    Well I agree on that you could stop the oscillator with your scope prope,
    that's why I asked Netjammer if he was messuring directly on the osc pins.

    I don't know the LAB X1 board, but when I read about it, it says that it has a crystal oscillator that can be set to different frequencies.

    So as you say Dave you can not messure directly on the pins when using a crystal and 2 caps hooked up to the PIC because the capacity from the skop prope wil stop the oscillation, but it is possible to messure the output on a "extern" oscillator like the one I think is on the LAB X1 board.

    Puuh, I hope you understand me english, writing is absolut not what I like most!

    Regards
    Sharky
    *Let's do it*

  2. #2
    Join Date
    Feb 2004
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    Germany
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    Netjammer,

    it could also be a problem wit the breadboards capacitance.

    This has been discussed several times on the forum.

    search for "breadboard"
    regards

    Ralph

    _______________________________________________
    There are only 10 types of people:
    Those who understand binary, and those who don't ...
    _______________________________________________



  3. #3
    Join Date
    Oct 2004
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    Hi Everyone, just wanted to say thanks again. I didn't get the crystal work but did use the RC capabilties and the microcontroller worked fine, though at a much slower clock speed. Today I purchased several crystal oscillators ranging from 5, 10, 12, 16MHz. I will give them a try. I'll post my results.

    Thanks again all,
    Netjammer-

  4. #4
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    Oct 2004
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    Just wanted to follow up again. I used the Crystal-Oscillators 4 & 10 MHz. They both worked fine. Someday I'll try to figure out why just the single crystal & caps circuit didnt' work. For now, I'm going to use the Crystal/Osc. combo's. They are CTS brand if anyone's interested.

    Cheers!
    Netjammer-

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