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Subject: 
Re: Speed of IR comms?
Newsgroups: 
lugnet.robotics
Date: 
Fri, 4 Oct 2002 23:00:43 GMT
Viewed: 
669 times
  
Steve Baker <sjbaker1@airmail.net> wrote:
I vaguely recall someone reporting that they'd cranked the baud
rate on both tower and RCX up to 9600 baud (I believe the default
is 1200 baud) - but that's still more than 100 times slower than
your cellphone/laptop.

FYI.  The RCX normally runs at 2400 baud, but it is effectively 1200 baud
because the protocol sends every byte twice.  Markus and I were able to get
downloads to run at a true 4800 baud by downloading a short program to hack
some registers and turn off the duplicate bytes in the protocol.  We tried
9600 baud but it was very unreliable.  4800 baud was sometimes finicky, but
then so was the original 2400/2, so we stuck with 4800.  Max is 4800... I
suppose that's what I'm trying to say. :)

-Kekoa



Message is in Reply To:
  Re: Speed of IR comms?
 
(...) Bad news I'm afraid: Your laptop and phone are using IrDA which is a vastly different technology than the RCX uses. The RCX protocol is more like a TV remote. (In fact, if you have a 'learning' remote, you can use it to drive your RCX!) I (...) (22 years ago, 2-Oct-02, to lugnet.robotics)

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