Subject:
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Re: Building a peripheral bus from motor output
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 27 Aug 2001 16:45:32 GMT
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Original-From:
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Bruce Boyes <bboyes@systronix.IHATESPAMcom>
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Viewed:
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707 times
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At 00:34 8/26/2001 +0200, you wrote:
>
>
> Hi all,
>
> I recently read an excellent paper by Fred Martin (of MIT fame) on building
> toys in a modular fashion. His microcontroller was similar to the RCX but
> had
> one key addition - a two wire serial bus so that active peripherals could
> be
> attached and controlled.
Do you have a link to this paper?
We are taking a similar approach and using SPI on our JCX controller. We
have designed in support for over 20 addressable I/O modules. For example,
4 motors are a module, 8 Lego compatible inputs takes up 2 modules.
Other modules such as RF modem, interface to TTl-level UART I/O from the
JCX controller.
Also we plan to support Dallas 1Wire devices so you can have dozens more
switches or sensors such as temperature, 4-input ADC, DAC, switches, etc
which do not require high speed access.
If anyone will be in Boston Sep 4-7 at the Embedded Systems Conference, we
will be in booth 1621 with some Legos and JCX demos. I'd be eager to meet
some Lego fanatics.
Bruce Boyes
------- WWW.SYSTRONIX.COM ----------
Real embedded Java and much more
High speed 8051 systems
+1-801-534-1017 Salt Lake City, USA
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Message has 1 Reply:
 | | Re: Building a peripheral bus from motor output
|
| (...) It's at: (URL)We are taking a similar approach and using SPI on our JCX controller. We (...) I checked out the systronix.com website but didn't see anything about a JCX controller. Is it a Java version of the RCX? Did I miss the link? (...) (...) (23 years ago, 27-Aug-01, to lugnet.robotics)
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Message is in Reply To:
| | Building a peripheral bus from motor output
|
| Hi all, I recently read an excellent paper by Fred Martin (of MIT fame) on building toys in a modular fashion. His microcontroller was similar to the RCX but had one key addition - a two wire serial bus so that active peripherals could be attached (...) (23 years ago, 25-Aug-01, to lugnet.robotics)
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