Subject:
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Re: Win2K and IR Tower - WinME too?
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 9 May 2001 10:18:47 GMT
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Viewed:
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738 times
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In lugnet.robotics, Stef Mientki writes:
> According to the schematics of John Barnes (Serial IR tower), the only way to
light the green LED is to sent data or more precise, to hold the TXD line in
high state.
> I've just tested my IR tower (with a general comm driver, which is able to
control every individual control line) and that's correct, no control lines are
able to light the green LED and thus powering the IR-leds.
>
> (For this test I removed my modification, because in fact I've modified my • tower, to keep the tower alive under control of the RTS line)
>
> By the way, the orginal commport settings are of none importance at all, • because the will always be overriden by the active serial commport driver.
>
>
> Ralph Hempel wrote:
>
> > Greg wrote:
> >
> > > I've experienced this problem both using nqc and the java serial
> > > comm classes.
> > > Both are using the microsoft serial port driver, I assume. FWIW,
> > > the machine is
> > > a Dell Dimension Laptop running Win2k. I am not certain under
> > > what circumstances
> > > the LED comes on or remains on - I only noticed the LED staying
> > > on after I'd
> > > determined that I was having serious comm problems.
> >
> > On my laptop, the green light on the tower comes on as soon as I plug
> > it in. When I run CRT 3.3 (great terminal emulator) the light goes OFF
> > unless I'm actually transmitting!
> >
> > In setting up CRT, it doesn't matter what kind of flow control
> > I'm using, the green light on the tower never comes on unless
> > I'm transmitting.
> >
> > I'm starting to lean towards the idle line state that Win2K (or the
> > laptop BIOS) leaves some of the control lines in....
> >
> > --------------------------------------------------------------------
> > Check out pbFORTH for LEGO Mindstorms at:
> > <http://www.hempeldesigngroup.com/lego/pbForth>
> >
> > Buy "Extreme Mindstorms: an Advanced Guide to Lego Mindstorms"
> > <http://www.amazon.com/exec/obidos/ASIN/1893115844/hempeldesigngrou>
> > --------------------------------------------------------------------
> > Reply to: rhempel at bmts dot com
> > --------------------------------------------------------------------
>
> Stef Mientki
Isn't TXD on continuously a "BREAK" signal?
Lester
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Message is in Reply To:
 | | Re: Win2K and IR Tower - WinME too?
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| According to the schematics of John Barnes (Serial IR tower), the only way to light the green LED is to sent data or more precise, to hold the TXD line in high state. I've just tested my IR tower (with a general comm driver, which is able to control (...) (23 years ago, 8-May-01, to lugnet.robotics)
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