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Hello Don, Did you had a look to my analysis of this problem ((URL) But unfortunately I don't think that my modification is "competition-legal"... I agree that sampling can occur at the wrong time, but this should not occur more often at low (...) (22 years ago, 27-Nov-03, to lugnet.robotics.rcx.robolab)
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| | Re: Robolab, byte codes and assembler
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(...) I've used some of the LabView features, though it seems like they work best when used on constants, rather than variables or containers. My impression, though, is that the non-Robolab-specific LabView features aren't what I'm looking for (...) (22 years ago, 27-Nov-03, to lugnet.robotics.rcx.robolab)
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| | Re: failure in communicaton between RCX & IR Tower
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(...) fine (...) (all (...) Ya, its a real pain in the arse... Rob (22 years ago, 27-Nov-03, to lugnet.robotics.rcx.robolab)
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| | Re: Robolab, byte codes and assembler
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(...) Robolab can access LASM code (Lego Assembler) which may allow you to write instructions that fit your needs. The LASM documentation is part of the Mindstorms 2.0 SDK available from (URL) not an assembler programmer so I have no idea if this (...) (22 years ago, 27-Nov-03, to lugnet.robotics.rcx.robolab)
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| | Re: Robolab, byte codes and assembler
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(...) Two problems: 1. From what I've read about the problem, the speed I ran it at was right in the "sweet spot". 2. BrickOS would not qualify for the competition. I wonder if (hope?) the recent unavailability of rotation sensors at Pitsco is (...) (22 years ago, 26-Nov-03, to lugnet.robotics.rcx.robolab, FTX)
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| | Re: failure in communicaton between RCX & IR Tower
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Hey, Rob, that's what I was doing last night as well.. but I was installing the w2kpro as my virtual machine (VMWare). However, I ran into some system problem and I have to do this again today. If it works with the w2kpro on your toshiba satellite (...) (22 years ago, 26-Nov-03, to lugnet.robotics.rcx.robolab)
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| | Re: Robolab, byte codes and assembler
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(...) Don't run it too quickly or too slowly. (URL) Um, that's all I know, besides using BrickOS which has code to make it more accurate. You mentioned that already. Actually, now that I think about it, BrickOS might be able to run assembly language (...) (22 years ago, 26-Nov-03, to lugnet.robotics.rcx.robolab, FTX)
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| | Robolab, byte codes and assembler
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Having investigated rotations sensors thoroughly, I conclude they have some serious design flaws. Most notably, some samples taken during voltage transitions can be impossible to differentiate from samples at entirely different rotational positions. (...) (22 years ago, 26-Nov-03, to lugnet.robotics.rcx.robolab)
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| | Re: failure in communicaton between RCX & IR Tower
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"Elizabeth Mabrey" <emabrey@storming-robots.com> wrote in message news:HoMq73.B9J@lugnet.com... (...) I (...) ceased (...) I (...) OK, I have the problem fixed. You may not like the remedy, but it worked lastnight flawlessly. Oh, and the PCMCIA USB (...) (22 years ago, 26-Nov-03, to lugnet.robotics.rcx.robolab)
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| | Re: failure in communicaton between RCX & IR Tower
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well, the IR tower is fired when I tested out with different powered hubs. I used 2.0 powered hub, the same symptom occured... the OS crashed in the identical fashion. When I used 1.0 powered hub, the tower mysterably ceased to response, then the OS (...) (22 years ago, 20-Nov-03, to lugnet.robotics.rcx.robolab)
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| | Re: failure in communicaton between RCX & IR Tower
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hi, all, I'm going to dig into my big cable/accessories bin to for my powered usb hub tonight. I don't have a pc-usb card though. Bob, please post if your test with the pc card work... -- thank you very much... E ===...=== (...) of (...) tower (...) (...) (22 years ago, 19-Nov-03, to lugnet.robotics.rcx.robolab)
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| | Re: failure in communicaton between RCX & IR Tower
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(...) I am having almost the same issues. I want to share my story because some of the key elements in your story match mine exactly: Computer: Toshiba Satellite/WinXP/3-USB 2.0 RCX 1.0 USB tower Software: RIS 2.0, SDK 2.5, Bricxcc (all have same (...) (22 years ago, 19-Nov-03, to lugnet.robotics.rcx.robolab)
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| | Re: failure in communicaton between RCX & IR Tower
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(...) This sounds identical to the situation described by Rob Hendrix in (URL) Anderson from LEGO suggested via email that the USB port may not be giving the tower sufficient current. Perhaps you could try a powered hub? John Hansen (22 years ago, 19-Nov-03, to lugnet.robotics.rcx.robolab)
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| | Re: failure in communicaton between RCX & IR Tower
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Hi, Nathan, I truly suspect that the issue is the Toshiba hardware of this particular laptop model. I have 3 Dell desktops, 3 laptops. They all have built in usb ports, either 2.0 or 1.0. They all work fine, with the identical setup up, even with (...) (22 years ago, 19-Nov-03, to lugnet.robotics.rcx.robolab)
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| | Re: failure in communicaton between RCX & IR Tower
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I may be stepping out on a limb, but have you tried reformatting the laptop that doesn't work? What about using NQC or the original Lego software to test and make sure its not RoboLab in combination with your laptop that is causing errors. Ok, (...) (23 years ago, 17-Oct-03, to lugnet.robotics.rcx.robolab)
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| | Re: failure in communicaton between RCX & IR Tower
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I tested with the same installation, IR tower & rcx module with another laptop (by Dell) built with infrared port, wireless network card, but with no bluetooth built in. They work fine... The problem is more and more leaning over to hardware (...) (23 years ago, 17-Oct-03, to lugnet.robotics.rcx.robolab)
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| | Re: usb tower failed in XP!
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Since this subject does not match the possible problem, I started a new thread to reflect the more accurate symptom "failure in communicaton between RCX & IR Tower" (23 years ago, 16-Oct-03, to lugnet.robotics.rcx.robolab)
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| | failure in communicaton between RCX & IR Tower
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PC: toshiba - P25 series model with four usb 2.0 ports, an bluetooth/wi-fi capability, w/ infrared port built in as well. IR Tower : usb RCX : 1.0 Symptom: - communication between the ir tower & laptop is fine... verified with the device manager - (...) (23 years ago, 16-Oct-03, to lugnet.robotics.rcx.robolab)
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| | Re: usb tower failed in XP!
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After I have done trouble-shooting for hours on my toshiba-laptop, the point of failure seems to be between the ir tower & the rcx...: - the ir tower did insteed install properly... I have verified with the device manager as well. - the (...) (23 years ago, 16-Oct-03, to lugnet.robotics.rcx.robolab)
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| | usb tower failed in XP!
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OS: winXP Robolab : 2.5.2 machine: Toshiba Satellite-p25... coming with 4 usb ports and a IR port. Symptom: - usb tower driver installed fine. - I even verified with device manager that the lego usb tower did indeed install properly. Robolab (...) (23 years ago, 15-Oct-03, to lugnet.robotics.rcx.robolab)
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