Subject:
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Re: NQC software for Mac? (Robolab back ordered)
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 17 Dec 1998 00:39:38 GMT
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Original-From:
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Ben Laurie <(ben@algroup.co.)avoidspam(uk)>
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Viewed:
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1487 times
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Chris Osborn wrote:
>
> On Dec. 16 98, 15:10 PST, "Eric Hodges" <eric.hodges@platinum.com>
> wrote:
>
> > It's been a long time since I worked with serial hardware, but
> > isn't there an alternative pair of pins to RTS/CTS? DTR/DTS or
> > something like that? If the Mac sets the other pins you might be
> > able to short them to the RTS/CTS pins. I know I've done this on
> > special cables built to connect the 2 types of equipment.
>
> DTR/CD aren't alternatives, they serve an entirely different purpose.
>
> The PC software toggles the CTS signal, which the tower shorts to
> RTS, so that it can tell if the tower is connected.
Err, right. And if there's DTR/DCD printed on the wires it just won't
play. Naughty people messing about with the assigned meanings of the
pins. Whatever next?
Cheers,
Ben.
--
Ben Laurie |Phone: +44 (181) 735 0686| Apache Group member
Freelance Consultant |Fax: +44 (181) 735 0689|http://www.apache.org/
and Technical Director|Email: ben@algroup.co.uk |
A.L. Digital Ltd, |Apache-SSL author http://www.apache-ssl.org/
London, England. |"Apache: TDG" http://www.ora.com/catalog/apache/
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Message has 1 Reply:
 | | Re: NQC software for Mac? (Robolab back ordered)
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| In article <367852CA.1EFBB7C2@a...up.co.uk>, Ben Laurie <ben@algroup.co.uk> writes (...) This is all getting very misleading - _not_ DCD or DTS or CD. The pairs are : RTS/CTS - normal hardware data handshaking. Careful here - I have come across 9D (...) (26 years ago, 17-Dec-98, to lugnet.robotics)
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Message is in Reply To:
| | Re: NQC software for Mac? (Robolab back ordered)
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| (...) DTR/CD aren't alternatives, they serve an entirely different purpose. The PC software toggles the CTS signal, which the tower shorts to RTS, so that it can tell if the tower is connected. Since the Mac serial port doesn't have those pins, (...) (26 years ago, 17-Dec-98, to lugnet.robotics)
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