Subject:
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Re: Curious problem with download
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Newsgroups:
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lugnet.robotics.rcx.nqc
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Date:
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Fri, 28 Jan 2000 00:52:47 GMT
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Viewed:
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2140 times
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In lugnet.robotics.rcx.nqc, Matthew Wilkins writes:
> In lugnet.robotics.rcx.nqc, Pete Johnson writes:
> >
> > I just got Mindstorm set, and since I do not have a PC, NQC seemed like
> > a great place to start. I tried Mac NQC and did not get very far downloading
> > the RCX firmware. Every attempt resulted in the IR tower not seeing the RCX.
> > I have a G3 blue and white and am using a uConnect USB to serial interface
> > and I suspected that was the problem. So I tried again with my Sun Ultra 5
> > running Solaris 7. I had the same problem. Then one time when I was • downloading
> > with verbose on, I forgot to turn on the RCX. So I turned it on after starting
> > the NQC firmware download, and the firmware transfered.
> >
> > This seems strange. Is this normal? Has anyone seen this before?
> >
> > Thanks,
> >
> > -Pete
>
> I don't see any strange behaviour here; the hinky USB-to-serial interface is
> going to be your culprit. I had no problems using NQC on my PowerCenterPro
> (PowerComputing Macintosh clone) with a direct serial interface, but when I
> tried to use a USB-to-Serial adapter (I have a USB card) it just flat wouldn't
> work. I traced the problem to a fault in the USB adapter's handoff of the
> serial signal. My opinion is that if you were to use a 'native' serial port
> (there are PCI cards that will give your Blue'n'White 'real' serial ports) you
> would probably be just fine.
>
> I hope that this is of some use for you. If I can remember who makes the PCI
> serial cards, I'll post here later.
>
> -Cheese
I would have ascribed it to the USB to serial converter, but I also see this
on the Sun with a real serial port. This is what makes me think it's a problem
with my RCX or IR tower.
Thanks,
-Pete
P.S. What you are thinking of is the stealth serial port for the modem slot.
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Message has 1 Reply:
 | | Re: Curious problem with download
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| (...) Er, no I was thinking of the PCI cards that give up to 4 serial ports; KeySpan used to make them. They were a short PCI card with two or four serial ports, which used a custom extension to route SerialToolBox calls to the 'phantom' serial (...) (25 years ago, 28-Jan-00, to lugnet.robotics.rcx.nqc)
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Message is in Reply To:
| | Re: Curious problem with download
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| (...) downloading (...) I don't see any strange behaviour here; the hinky USB-to-serial interface is going to be your culprit. I had no problems using NQC on my PowerCenterPro (PowerComputing Macintosh clone) with a direct serial interface, but when (...) (25 years ago, 28-Jan-00, to lugnet.robotics.rcx.nqc)
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