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 Robotics / RCX / *8045 (-20)
  Re: lnpd+liblnp + brickos-0.2.6.10
 
(...) Paolo has done some work in this area for Windows OSes and I am worked on integrating it to brickos with USB support under Windows. I will post my work at some point. Ed (21 years ago, 26-Oct-03, to lugnet.robotics.rcx.legos)
 
  brickos sound-related crash
 
I've been having some trouble with the 0.2.6.10 brickos kernel compiled with gcc 3.3.2. Whenever I try to use the dsound_play or sound_system functions, the kernel crashes immediately. In some cases, the RCX really goes haywire and motors start (...) (21 years ago, 31-Oct-03, to lugnet.robotics.rcx.legos)
 
  Re: How to call SCOUT ROM subroutine from NQC
 
(...) Sorry for late response. I am now very busy but I will upload some small snippets for calling directly Scout ROM subroutines (recently I am not be able to concentrate on this issue) as soon as I can. Thanks, Liem PH (21 years ago, 28-Oct-03, to lugnet.robotics.rcx.nqc)
 
  BricxCC release 3.3.7.6
 
I've gone ahead and released a new version of BricxCC. Get it while it's hot! :-) There are a few rough edges in this release, primarily in the pbForth console. Also, the leJOS .hlp file was so large I did not include it in the main installer. The (...) (21 years ago, 27-Oct-03, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.legos, lugnet.robotics.rcx.nqc, lugnet.robotics.spybotics, FTX)
 
  Re: BrickOS motor port horrors
 
(...) [snippage] (...) I will be releasing a new version of BricxCC shortly (by the end of the week, with any luck) which will include a fix for this bug. It is already fixed but I'm trying to get a couple other items done before I publish a new (...) (21 years ago, 27-Oct-03, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx.nqc)
 
  Re: BrickOS motor port horrors
 
(...) [snip] (...) Mark, Thanks for shooting this so quickly. Kevin (21 years ago, 27-Oct-03, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx.nqc)
 
  Re: BrickOS motor port horrors
 
(...) As we discussed in email, it appears to be the firmware downloader causing the problem. I just tried downloading BrickOS 0.2.6.10 with both NQC 2.5 a1 and BricxCC 3.3.6.2 and experienced growling motors. I then downloaded BrickOS using firmdl3 (...) (21 years ago, 27-Oct-03, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx.nqc)
 
  Re: BrickOS motor port horrors
 
(...) Me too. Without any program loaded, it seems to do funny things with the motors. But once I get a program downloaded, it works fine. The only thing that I find freaky is the different values for light sensors. There's hex percentages and dec (...) (21 years ago, 27-Oct-03, to lugnet.robotics.rcx.legos, FTX)
 
  Re: BrickOS motor port horrors
 
(...) Rob, I've had the same problem with BrickOS. The installation I used came with BrickOS already built. I reloaded the RCX with LEGO firmware and all three motor ports worked fine. I concluded it was a BrickOS problem that I would wrestle with (...) (21 years ago, 26-Oct-03, to lugnet.robotics.rcx.legos)
 
  Re: IR Sensitivity - Was: 1.5/2.0 infrared problem
 
(...) Mine have been apart more often than I'd like, too! :-) (...) My guess would be mostly for increased communication speed. With the higher baud rate, the duration of the 2-byte Spybot/Manas packets is halved. This allows for fewer collisions (...) (21 years ago, 26-Oct-03, to lugnet.robotics.rcx)
 
  Re: BrickOS motor port horrors
 
(...) That is the part that really bites me. Are you able to reproduce the error? If yes, try to put out the batteries for a longer time. Anyway, it seems worthwile to have a look at the brickOS initialization code for the motors. If you can (...) (21 years ago, 26-Oct-03, to lugnet.robotics.rcx.legos)
 
  LDCC.java
 
I've developed an LDCC protocol stack for lejOS. Well, 1/4 of it. It's currently receive-only and only on the RCX platform. It needs another pair of eyes to make sure I haven't done anything stupid or inefficient, as this is only my second Java (...) (21 years ago, 26-Oct-03, to lugnet.robotics.rcx.java)
 
  Re: BrickOS motor port horrors
 
Well, I don't know much about it being possessed, but you should try to divide the problem probabilities in half. Try loading the original lego firmware. (Yes I know, this brings horror to some of you fellow programmers out there, but its just (...) (21 years ago, 26-Oct-03, to lugnet.robotics.rcx.legos)
 
  BrickOS motor port horrors
 
I was writing some simple programs to test out BrickOS last night, and had some really strange behavior. I hooked up a motor to port B and a rotation sensor to port 2. My programs were just testing out various motor speeds and positioning accuracy. (...) (21 years ago, 25-Oct-03, to lugnet.robotics.rcx.legos)
 
  Re: IR Sensitivity - Was: 1.5/2.0 infrared problem
 
(...) Hello Mark, Thanks for your answer, this will keep me from dismantling once again my RCXs ! So it seems that LEGO modified RCX2.0 to get better compatibility with Spybots/Manas. Now a question remains, why did they increased carrier frequency (...) (21 years ago, 23-Oct-03, to lugnet.robotics.rcx)
 
  Re: IR Sensitivity - Was: 1.5/2.0 infrared problem
 
(...) OK thanks for your reply! But the bad thing is that two RCX2.0 could not communicate properly....Am I wrong?? Chris. (21 years ago, 23-Oct-03, to lugnet.robotics.rcx)
 
  Re: IR Sensitivity - Was: 1.5/2.0 infrared problem
 
chip 1138 / chip 1176 Strange... 38 + 38 = 76 What does that mean? Rob "Mark Riley" <markril@hotmail.com> wrote in message news:Hn6xKJ.1o68@lugnet.com... (...) its (...) reflected (...) axle (...) same (...) post on (...) on (...) messages. (...) (...) (21 years ago, 23-Oct-03, to lugnet.robotics.rcx)
 
  IR Sensitivity - Was: 1.5/2.0 infrared problem
 
(...) I think there might be an explanation for this and I've been meaning to post on this topic, but never seem to have gotten around to it! :-) I've opened up my RCX 1.0 and the IR receiver has the markings "TSOP 1138" on it. After looking this (...) (21 years ago, 23-Oct-03, to lugnet.robotics.rcx)
 
  Re: 1.5/2.0 infrared problem
 
(...) we ' ve told about this thing with Philo few days ago cause he had the same problem. So I' ve made several tests with 4 RCX: 2 RCXv1.0 and 2 RCXv2.0 . It seems RCX emitter is the same in 1.0 and 2.0 versions. But 2.0 receiver is less sensitive (...) (21 years ago, 23-Oct-03, to lugnet.robotics.rcx)
 
  lnpd+liblnp + brickos-0.2.6.10
 
It seems to be not possible to use lnpd+liblnp with brickos-0.2.6.10. Is there a patch available to get the liblnp package to work? (21 years ago, 22-Oct-03, to lugnet.robotics.rcx.legos)


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