Subject:
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Re: USB vs Serial Tower Response Time
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Fri, 22 Aug 2003 14:15:15 GMT
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Viewed:
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3458 times
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In lugnet.robotics.rcx, Dick Swan wrote:
> [5] PC software can add significantly more delay than above. I traced
> messaging on one popular program and it added a 250 msec wait between
> USB messages. I tried to improve by changing the settings described in
> [7] below but then if failed for long messages (like retrieve datalog
> or memory map).
Dick
If, by chance, BricxCC (or NQC) happened to be the popular program to which you
refer I'd love to hear more details about your software tests and the code you
use for communicating with the RCX via the USB tower. I'm not particularly
happy with the performance of the USB tower under BricxCC.
John Hansen
http://members.aol.com/johnbinder/bricxcc.htm
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Message is in Reply To:
 | | USB vs Serial Tower Response Time
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| Several recent posts have mentioned significantly slower performance of the USB Tower when compared to the serial Tower. After several measurements, I've concluded that the USB Tower is "natively" only slightly slower (~20 milliseconds per message) (...) (21 years ago, 21-Aug-03, to lugnet.robotics.rcx)
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