Subject:
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RE: dual servo update
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Wed, 22 Jan 1997 12:45:22 GMT
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Original-From:
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Mike Ross <mross@outland.IHATESPAMjsc.nasa.gov>
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Viewed:
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1838 times
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On Tue, 21 Jan 1997, Chuck McManis wrote:
> Servos also must get a pulse at *LEAST* every 20mS. So perhaps there are
> times where you miss one now or then. Since they can take pulses more
> often than that perhaps Fred or someone can reduce the cycle time to compensate
> for times when the processor is too busy to get back to them in time?
I send my servos commands every 32.768 mS, and they work fine. I don't
know what the limit is, but I don't think that 20 mS (50 Hz) is critical.
* Michael L. Ross/C33 | Lockheed Martin Eng & Sci Svcs Co. ****
* Robotics Department | 2400 Nasa Rd. 1, Houston, TX 77058*****
* (281)333-7094; (281)333-6071 fax* #include <disclaimer.h>*
* Finger me for my public key. mross@outland.jsc.nasa.gov ****
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Message is in Reply To:
 | | RE: dual servo update
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| Two things to note in the servo investigation: (...) This supplies a reserve of current to the servos, and that allows them to seek to their desired position faster. (...) Two servos, when moving, can pull two AMPS of current. Thats 2000mA. Two (...) (28 years ago, 21-Jan-97, to lugnet.robotics.handyboard)
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