Subject:
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Re: 1.0 firmware and remote -- for Jeff W
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Newsgroups:
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lugnet.org.ca.rtltoronto
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Date:
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Sun, 18 Nov 2001 18:39:27 GMT
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Viewed:
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451 times
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> So I then wonder how they (LEGO) disabled the remote on the wall climber.
> Some one suggested a different firmware but I do not believe that that is
> possible since the code only took seconds to upload for each program....
Well one way you can disable emote control, and block all other
communications for that matter, is by making the RCX constantly send out
messages. A simple line of code like this – while(true){sendmessage(0);} is
ought to do the trick. Apparently the IR Tx/Rx is not full duplex, hence
rendering it impossible to receive any commands/messages while sending one.
So in the case with the wall climber they could have inserted the
SendMessage loop into a separate task allowing the rest of the program to
function on its own. And quite obviously that would not require any new
firmware, nor will it increase the upload time above the usual half-a-second.
Cheers!
Ivan
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Message has 1 Reply:
Message is in Reply To:
 | | Re: 1.0 firmware and remote -- for Jeff W
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| Thanks Chris... So I then wonder how they (LEGO) disabled the remote on the wall climber. Some one suggested a different firmware but I do not believe that that is possible since the code only took seconds to upload for each program.... Jeff VW (...) (23 years ago, 18-Nov-01, to lugnet.org.ca.rtltoronto)
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