Subject:
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Re: Finally, I found the answer!!
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 16 Feb 2009 14:53:48 GMT
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Original-From:
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NXTelectroneer <TECHNIA21@YAHOO.avoidspamCO.KR>
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Viewed:
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9010 times
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NXTelectroneer wrote:
>
> I am a hobbyist programmer and trying to make NXT remote control program
> for PC.
>
> anyway, I am succeed open bluetooth SPP, send a command, and got response
> from the NXT.
>
> But the problem is.... sending tons of repeatly command and one response.
>
> NXT never respond sending one or two command, but after sending 20~40,
> sometimes about 60 command
>
> (all the same), I can get only one NXT's reply packet.
>
> The reply packet itself is correct and suited the command.
>
> To solve this, I read carefully the "LEGO mindstorms NXT communication
> protocol" document but
>
> I can't find the solution.
>
> It seems that buffering is occured somewhere on data route.(I think the
> NXT got buffering)
>
> I an tired to find the solution in several days....
>
> What is wrong? What is my mistake? please let me know...
I am missing the packet length in the command packet.
before send a command packet, the length of the packet must be sent first.
Size of the packet length is word(2 byte), but value of the packet length is
not included itself.
--
View this message in context: http://www.nabble.com/I-am-stuck-while-programming-for-comunication-to-lego-NXT-tp22025069p22038701.html
Sent from the LEGO Robotics mailing list archive at Nabble.com.
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