 | | Re: rotation sensor mystery solved?
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(...) It is very very interesting. I have worked the last weeks evenings to discover the fault in my concept, my modell and my Software. and I have discovered, that the fault can't be on my side. I discovered that my implementation of a fake (...) (25 years ago, 26-Jan-00, to lugnet.robotics.rcx.legos)
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| | Re: rotation sensor mystery solved?
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(...) Hi Ben, i think that's very interesting work you're doing, especially because i'd like to build sophisticated balancing bots, and already got 2 rotation sensors from lego world shop for this reason. I'm currently not actively working on that, (...) (25 years ago, 26-Jan-00, to lugnet.robotics.rcx.legos)
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| | Re: rotation sensor mystery solved?
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I put in some debug code to catch rotations which skip a state (transitions like 3->1 or 0->2) which the legOS table `diff2change' currently translates to 0 steps (because we can't be sure whether that was 2 steps forward or 2 steps back). These (...) (25 years ago, 26-Jan-00, to lugnet.robotics.rcx.legos)
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| | Re: sending keepalive... ???
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Hi Rossz (...) Yes, I downloaded the legOS.srec on top of the existing Lego firmware and some programs. When you download the legOS firmware will anything currently in RAM be deleted? I'll try taking the batteries out for a while and starting again. (...) (25 years ago, 26-Jan-00, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Bug in WinlegOS installer
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In my rush to get the package released I made "one more insignificant change". This resulted in a bad path setting being placed in the autoexec.bat file. At the end of the install skip rebooting and open autoexec.bat in the editor. The installer (...) (25 years ago, 26-Jan-00, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx)
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| | Re: more user questions
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Thanks, your directions worked perfectly. (...) Originally, the line appended to autoexec.bat was (something like): set path=set path=c:\LEGOS\H8\BIN...ath%%path% which I altered to: set path=c:\LEGOS\H8\BIN...BIN;%path% (25 years ago, 26-Jan-00, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Re: rotation sensor mystery solved?
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(...) old (...) The version I posted works with all cable lengths and battery strengths I have access to. I just extended the range of each state a bit toward the low battery end of the scale. --Ben (25 years ago, 26-Jan-00, to lugnet.robotics.rcx.legos)
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| | Re: more user questions
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A general note, there is a README.WRI file. This includes information beyond what Markus originally wrote in README. Perhaps I should have deleted his README (I include it in README.WRI, anyway). Open your copy of MAKEFILE. You'll find this line: (...) (25 years ago, 25-Jan-00, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Re: sending keepalive... ???
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(...) If the readme file says the demo LX files are included, that is a mistake (or should I include them?). I'll have to correct it. As for your download problem, did you download the firmware first (firmdl3 legOS.srec)? LX files are relocatible (...) (25 years ago, 25-Jan-00, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | more user questions
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I too have had my problems with this system. Perhaps they come from my inexperience with LEGOS or UNIX, which doubtless is apparent in my description below: Downloading and installing went well. Then, after correcting a minor SET PATH syntax error (...) (25 years ago, 25-Jan-00, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | sending keepalive... ???
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Hi You go to all the hassle of making LegOS available for us Windows users and still we have questions. I'm really struggling and can not find anything in the docs or Lugnet to help (that I understand) and so I would really apreciate some help. I (...) (25 years ago, 25-Jan-00, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Re: legOS for Windows
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Install ActivePerl ((URL) switch to the boot directory, and type MAKE. That's it. What you can't build with this package are the various command line tools (makelx.exe, firmdl3.exe, dll.exe), nor the cross compiler. Rossz (...) (25 years ago, 25-Jan-00, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Re: rotation sensor mystery solved?
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(...) Will this version also work with fresh batteries and short cable, or do we have to change tables depending on the battery state ? (25 years ago, 25-Jan-00, to lugnet.robotics.rcx.legos)
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| | Re: Trying to understand dynamic loading
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(...) AFAIK, Markus is currently writing a new O'Reilly book about Mindstorms systems, which will cover legOS quite detailed. I also guess there will arise some up-to-date online documentation from this project. - Martin (25 years ago, 25-Jan-00, to lugnet.robotics.rcx.legos)
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| | Re: rotation sensor mystery solved?
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(...) When I wrote my original post I was afraid that major surgery was going to be required to fix this. The values with an extension wire are actually shifted into formerly invalid slots which are contiguous with the existing state groups. So the (...) (25 years ago, 25-Jan-00, to lugnet.robotics.rcx.legos)
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| | rotation sensor mystery solved?
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I was getting very erratic readings from a rotation sensor (if I put a pendulum on it and moved it back and forth the 0 position would wander all over the place). I started looking at the raw values from the sensor and comparing them with what the (...) (25 years ago, 25-Jan-00, to lugnet.robotics.rcx.legos)
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| | Re: Trying to understand dynamic loading
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Thank you all for the help. Now I can see things much better! Now that the Windows version finally works, I will be able to experiment a little... A thought: IMHO, one of the things that should be very high on the "to do" list is documenting legOS. (...) (25 years ago, 25-Jan-00, to lugnet.robotics.rcx.legos)
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| | Re: legOS for Windows
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(...) Yes, I tested it and it worked on my Win98! Great work!! Thanks! (...) Do you mean that the kernel can be rebuild on Windows? Which parts/utilities cannot be rebuilt? best regards, Vlad (25 years ago, 25-Jan-00, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | legOS for Windows
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For those of you overwhelmed by the work involved to get a viable legOS developement system on the Windows OS, legOS for Windows is now available. If you only wish to write dynamic downloadable programs for the RCX, this package is all you need. If (...) (25 years ago, 24-Jan-00, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Re: legOS for Windows Finished!
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(URL) I haven't tested it myself, but WinlegOS 0.2.3 is now online. Many thanks are clearly due to Rossz for making this happen. If someone wants to volunteer to write up a quick description of it's use, let me know, and I'll post that along with (...) (25 years ago, 24-Jan-00, to lugnet.robotics.rcx.legos)
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