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[DAT] (requires LDraw-compatible viewer)
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Subject:
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Help! Can't talk to IR Tower with Mac w/nqcc!
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 20 Jan 1999 02:17:33 GMT
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Viewed:
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878 times
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I bought Mindstorms and downloaded nqcc to talk to the RCX, but I can't seem to
get connected.
I created a cable (actually its a bunch of cables strung together) and
confirmed the wiring.
I (ultimately) have the following:
Mac IR
(Male
connector)
1 7
2 8
3 2
4 5
5 3
6 NC
7 NC
8 5
I am trying to download the RCX firmware into the brick but every time I run
it:
i.e.
rcxfirm FIRM0309.LGO
I get this message:
Problem talking to IR device
I get the green led to turn on in the IR Tower , and it stays lit for about
3-4 seconds after the message is displayed.
I checked out the IR tower with a PC and Mindstorms and proved that it
worked OK.
Frankly I can't think of anything else to do.
Any advice would be greatly appreciated.
Also, if anybody knows another way of talking to the IR tower to test
it I would like to know.
Finally, does anybody know all the conditions that could exist that would cause
this message to be sent?
many thanks in advance,
rob cairns
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Message has 1 Reply:
 | | Re: Help! Can't talk to IR Tower with Mac w/nqcc!
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| (...) That wiring looks fine, provided that "IR" is a DB-9 female that connects directly to the IR device. If you use the IR cable supplied by lego, then you'll need to swap pins 2 and 3. Mac pins 1 and 2 (RS-232 pins 7 and 8) are not required at (...) (25 years ago, 21-Jan-99, to lugnet.robotics)
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