Stuttering Servo


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  1. #1
    Join Date
    Nov 2003
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    Wellton, U.S.A.
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    Ok
    Show us the current test code and tell us about the hardware ( power supply, servo models, how it is all connected, etc )
    Dave
    Always wear safety glasses while programming.

  2. #2


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    As mentioned above, the servo runs smooth and quiet when driven by the non-interrupt routine. So, I think the servo and circuit are OK.

    However, I now realize that timer1 interrupts are occuring every 10 ms, while the servo pulses are only 1 to 2 ms long. Just guessing, but it seems that timer interrupts that periodically occur during the pulse on-time can signifigantly disrupt the pulse period and cause jittering. Therefore, I think my interrupt-timed approach will not work.

    Experiment over.

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