Subject:
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Re: mindstorms NXT
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 9 Jan 2006 00:47:38 GMT
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Viewed:
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7682 times
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In lugnet.robotics, John Barnes wrote:
> In lugnet.robotics, Kevin L. Clague wrote:
> >
> > I was wondering if one could make a two port host device with its own power
> > source (battries). It could be relatively simple, where one host port polls the
> > device port of the NXT to find out if there is anything to do, and then the
> > second host port would drive that to devices that the NXT can use.
> >
> > Just daydreaming here too.
>
>
> So you are saying you have a sort of mini-host acting as a bridge between
> connected devices like a NXT and something else.
>
> That sounds like an interesting idea .....
Yes, this was what I was brainstorming of...
>
> I think one of the reasons why hosts are tricky and devices are easier is that
> USB is pretty much a standard from the device's view of it whereas from the host
> end, there are numerous different devices which could show up and each requires
> its own driver. So the little host bridge idea is probably very doable from a
> hardware standpoint, but the amount of software it would need would be quite
> large, typically consisting of a whole array of drivers for all the different
> kinds of things that might get plugged in.
Yes, this is very true. If you always used A for the NXT then you'd still need
device drivers for whatever is plugged into B.
>
> So for example, with the NXT plugged into bridge port A, anything from a USB
> storage device to a data acquisition device even another NXT could be plugged
> into port B. Somewhere, some really clever softare has to reside to be able to
> negotiate between what's on port A and port B. I was wondering if this might be
> the kind of thing that Windows CE might be able to be programmed to do. I assume
> it has a whole raft of USB drivers, the same way XP/2000 has. Is there such a
> thing as a Windows CE type platform that has USB? An external USB splitter and
> some code sitting on top of the O/S USB drivers might make the kind of compact
> device you are describing?
Yes, as long as the WindowsCE has host capabilities.
My WindowsCE phone only has USB device :^(
>
> What do you think?
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Message is in Reply To:
 | | Re: mindstorms NXT
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| (...) So you are saying you have a sort of mini-host acting as a bridge between connected devices like a NXT and something else. That sounds like an interesting idea ..... I think one of the reasons why hosts are tricky and devices are easier is (...) (19 years ago, 8-Jan-06, to lugnet.robotics)
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