NXT programmable brick : 917


Robotics / NXT / 917	916 \| 918

Subject:	Re: Ooops! NXT Software Comparison correction / I2C Messaging Speed
Newsgroups:	lugnet.robotics.nxt
Date:	Wed, 5 Sep 2007 05:46:26 GMT
Viewed:	21502 times

Hi Dick, "Dick Swan" <dickswan@sbcglobal.net> writes: > > Eight msec for the poll duration is expected -- a transfer of 4 bytes > of data taking 18 clock cycles each at 10K Hz clock (7.2 msec) plus a > few extra clock cycles at start and end of message. actually I2C runs at something close to 12kHz in the LEGO firmware (I forgot the exact value). JÃ¼rgen -- JÃ¼rgen Stuber <juergen@jstuber.net> http://www.jstuber.net/

Message is in Reply To:

		RE: Ooops! NXT Software Comparison correction / I2C Messaging Speed
(...) I wasn't aware of this firmware limitation. I could not duplicate it when using the ROBOTC firmware. I've done three different test runs of 500K messages each with perfect results each time. Each test run used a different sensor. The delay (...) (17 years ago, 5-Sep-07, to lugnet.robotics.nxt)

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