Subject:
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Re: Motor Speeds
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Mon, 24 Feb 1997 02:03:54 GMT
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Original-From:
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Bambang Sutanto <bsutanto@POBoxes/saynotospam/.com>
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Viewed:
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1800 times
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> I had considered doing -100 to 100 PWM in hardware. I even went so far as
> to draw up the schematics for it... Then I read the HC11 manual, and
> realized that instead of my "little" circuit, I could just use another
> HC11.. The internal timer/counters could do the job easily, with very
> little overhead. My thoughts then turned to making this "second" HC11 • into
> a navigation sub-processor, perhaps linked to the first with the SPI
port.
Consider implement PWM (for Motor Control) with second HC11,
why not implement DC motor Controller with Frequency Lock Loop to
control motor position and regulate motor speed?
Suggested Specification:
M68HC11
PWM Output using TOC 2, 3, 4, 5
Control up to 4 Motor DC
Quadrature Encoder
Maximum Speed ~4000 rpm
Comunicate using SPI or SCI
regards,
Bambang Sutanto
http://www.netforward.com/POBoxes/?bsutanto
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