 | | First time kernel hacker...
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Hi all, Im fiddling with the kernel for the first time and I have a problem I was wondering if anyone could help with. I really needed a function to be executed at exact pulse intervals and msleep wasnt doing it for me so I thought Id put a call (...) (23 years ago, 30-Jun-01, to lugnet.robotics.rcx.legos)
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| | Re: WinLegOS
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(...) Hi, you can download all the files you need at: (URL) need to download a patch for the Vc++ 6 to get it successfully compiled, because Vc++ 6 has a compiler bug. Olaf Christ (23 years ago, 29-Jun-01, to lugnet.robotics.rcx.legos)
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| | WinLegOS
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Hi all, Where can I get WinlegOS? I'm trying to download it from (URL) but the link to the file is broken. Un saludo from Spain, R. Lou (ricardlou@yahoo.com) (23 years ago, 23-Jun-01, to lugnet.robotics.rcx.legos)
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| | LEGO Robots used in lab course
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Hi! Here in Uppsala, we have used LEGO RCX bricks running LegOS for a course in real-time systems. More information about the lab, and some MPEG movies of the final robots, can be found at: (URL) (23 years ago, 26-Jun-01, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | reliable lnp ...
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Hi, i always thought that LNP isnt reliable. Although this seems to be true in general, because lnp.c does not send any acknowlege-packets back, when downloading code (program.c) acknowledge-packets ARE sent back to to the PC (DLL), right ? So my (...) (23 years ago, 24-Jun-01, to lugnet.robotics.rcx.legos)
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| | Re: RFC compliant TCP/IP and /or a new Version of LNP
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(...) There was a while back, but I haven't heard anything for a while. (...) You might try one of the embedded versions of Linux. ROSCO (23 years ago, 23-Jun-01, to lugnet.robotics.rcx.legos)
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| | RFC compliant TCP/IP and /or a new Version of LNP
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Hi, is there someone who is currently working on a real (RFC-compliant) TCP/IP implementation for legOS to make the lnp obsolete ? Does anybody know where to find an extremely small TCP/IP implementation that could be ported to legOS ? PS: When will (...) (23 years ago, 22-Jun-01, to lugnet.robotics.rcx.legos)
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| | Re: lnp rcx hostaddress
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(...) Hi, could you please post the code ? Thanks Cu, Olaf "Dammit Jim, I'm a programmer not a brain surgeon!" (23 years ago, 22-Jun-01, to lugnet.robotics.rcx.legos)
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| | Re: problem with floating point numbers (legOS 0.2.5)
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(...) Yes, the gcc version (2.96) which comes with RH 7.1 doesn't compile the things older versions used to do it. For example try to recompile kernel 2.2.5 and you'll see a strange error con checksum.S. As far as I know 2.96 is not a stable (...) (23 years ago, 19-Jun-01, to lugnet.robotics.rcx.legos)
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| | Liblnp bug found and squashed ?
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This is no good: I'm beginning to talk to myself ;] This is a follow-up on my previous post, and (hopefully) an answer to problem number 3. 'Bit technical I'm afraid. I'M STILL STUCK ON THE OTHER PROBLEMS (as of tonight anyway it's 23:48 and I'm at (...) (23 years ago, 14-Jun-01, to lugnet.robotics.rcx.legos)
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| | Re: Some assorted questions
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(...) I don't know pre-0.2.3 versions, but now you can find it in `include/dsound.h'. (...) In principle it's possible, but changing the linking scheme involves too much work, IMHO. (...) Use the macro `ds_scale' (in `include/dsensor.h') to get RAW (...) (23 years ago, 11-Jun-01, to lugnet.robotics.rcx.legos)
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| | Lnp collision under Linux
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Hi ! I'm having trouble trying to make a Linux box (Mandrake 7.2 kernel 2.2.17-21mdksmp) communicate with my RCX. My ultimate goal is to try and make the PC control the RCX via infrared (so as not to suffer from the RCX memory limitations). To do (...) (23 years ago, 11-Jun-01, to lugnet.robotics.rcx.legos)
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| | Some assorted questions
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Hi, all - I was reading through the sources, and I noticed that starting with 0.2.3, there was no dsound_play. Does anybody know why the 8 kHz sound playing subsystem was taken out? That was, IMHO, a way cool feature. Was it just too buggy? Also, I (...) (23 years ago, 10-Jun-01, to lugnet.robotics.rcx.legos)
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| | Re: showing my ignorance of makefiles :)
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(...) Hi- You need to compile the the source files into object files with "make blah.o", replacing blah with the "blah" in blah.cpp. Then, just add the .o file names to DOBJECTS in the Makefile. HTH, --Quentin (23 years ago, 3-Jun-01, to lugnet.robotics.rcx.legos)
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| | Re: firmdl3 error - bad ir link
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(...) I just booted into windows, and the tower was working fine, so i downloaded the LEGO firmware. Now that I'm back in Linux, the tower seems to be fine. Go figure. Maybe there was another linux app that had the serial port open, and it was (...) (23 years ago, 2-Jun-01, to lugnet.robotics.rcx.legos)
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| | Re: firmdl3 error - bad ir link
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(...) In order to warm up the tower, firmdl3 repeatedly sends out some bytes until the tower echos those same bytes back. If this fails to succeed within four seconds, you get the bad link error. I have no idea what is wrong with your tower if (...) (23 years ago, 2-Jun-01, to lugnet.robotics.rcx.legos)
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| | firmdl3 error - bad ir link
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Hi- Recently, I've been getting the "bad ir link" error from firmdl3. I can't figure out what's wrong - I've tried new batteries, different lighting conditions, near/far mode, slow/fast. I hope I haven't fried my tower - could someone please tell me (...) (23 years ago, 2-Jun-01, to lugnet.robotics.rcx.legos)
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| | Re: problem with floating point numbers (legOS 0.2.5)
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(...) Okay, good to hear the problem has been resolved. Hopefully the person who ran into this problem before you also found something that worked in the end. -Kekoa (23 years ago, 31-May-01, to lugnet.robotics.rcx.legos)
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| | Re: problem with floating point numbers (legOS 0.2.5)
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(...) In my legOS setup (legOS0.2.5, SuSE linux 7.0), all programs work as expected. Have you changed something lately in the float-library? Or are there different versions of the gcc crsosscompiler chain? Mike (23 years ago, 29-May-01, to lugnet.robotics.rcx.legos)
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| | gcc [was Re: problem with floating point numbers (legOS 0.2.5)]
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Has anyone tried to use gcc 3.0 (one of the pres) with legOS? Just curious... Luis (...) (23 years ago, 29-May-01, to lugnet.robotics.rcx.legos)
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| | Re: problem with floating point numbers (legOS 0.2.5)
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(...) Actually, the problem seems to come with gcc 2.96 (recent installation of Red Hat 7.1). My program runs without any problem on an other PC with gcc 2.95. I have forced the system to use egcs, re-built everything, and now it works fine. (23 years ago, 29-May-01, to lugnet.robotics.rcx.legos)
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| | Re: lnp rcx hostaddress [and a summer legOS release?]
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I'm very open, to feedback to tell me why I'm nuts and/or to help in making sure I don't break anything important to current legOS users. I certainly won't change anything serious without announcing and discussing it here. Luis (...) (23 years ago, 29-May-01, to lugnet.robotics.rcx.legos)
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| | Re: lnp rcx hostaddress [and a summer legOS release?]
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Hi I'm preparing for the same project Vittorio's working on, a high level library in C++ to send explicit commands to rcx from a pc and back. I hope if you gonna change the low level library you will mantain a certain compatibility so that I won't (...) (23 years ago, 28-May-01, to lugnet.robotics.rcx.legos)
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| | Re: lnp rcx hostaddress [and a summer legOS release?]
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Vittorio- I've frequently wondered the same, but since I've never had reason to use LNP I've never fixed it. If you'd like to submit a patch I'll gladly apply it to the source tree. In other news- I'm back, more or less. While this week will be (...) (23 years ago, 27-May-01, to lugnet.robotics.rcx.legos)
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| | lnp rcx hostaddress
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I have an important question: WHY the rcx lnp address (and mask) is hardcoded in the library? I inspected the source code for both the pc part and the rcx part. The pc library is well formed and the init function allows you to set up the address and (...) (23 years ago, 27-May-01, to lugnet.robotics.rcx.legos)
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| | Re: problem with floating point numbers (legOS 0.2.5)
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(...) You are the second person to report something like this, so there must be something wrong somewhere. I will take a closer look at this when I get a chance. I am busy until Tuesday though. I know I will forget, so keep e-mailing me until I fix (...) (23 years ago, 26-May-01, to lugnet.robotics.rcx.legos)
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| | Custom Firmware, IR Problems, and Dead RCXs (long)
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The following information is my own opinion and not endorsed or verified in any way by LEGO. That being said, I think that now is the time to relate some experiences I've had over the past couple of months with my RCX and IR tower - and it boils (...) (23 years ago, 26-May-01, to lugnet.robotics.rcx, lugnet.robotics.rcx.pbforth, lugnet.robotics.rcx.legos)
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| | problem with floating point numbers (legOS 0.2.5)
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Hi Here are two programs I've compiled and downloaded into my RCX. The first one works fine whereas the second doesn't (no music). Since the only difference between them is the type of the variable "number", I'm worrying about the ability of the (...) (23 years ago, 25-May-01, to lugnet.robotics.rcx.legos)
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| | Re: modulo in legOS 2.4 ?
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-----Original Message----- From: Ciaran Jessup <ciaranjessup@myrealbox.com> To: lugnet.robotics.rcx....lugnet.com <lugnet.robotics.rcx...ugnet.com> Date: 24. mai 2001 22:39 Subject: Re: modulo in legOS 2.4 ? (...) an (...) you (...) ah, i mean the (...) (23 years ago, 24-May-01, to lugnet.robotics.rcx.legos)
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| | Re: modulo in legOS 2.4 ?
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do you mean 3mod3 = 0 or mod(-3)=mod(3)= 3 ? If you mean the first then you want the %age operator, otherwise you want an 'abs' function not sure if legOS supports this as doesn't support floats(entirely), but you can always write a quick (...) (23 years ago, 24-May-01, to lugnet.robotics.rcx.legos)
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| | RE: modulo in legOS 2.4 ?
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Ummm, that would be the % operator in C, right? (...) (23 years ago, 24-May-01, to lugnet.robotics.rcx.legos)
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| | modulo in legOS 2.4 ?
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hi all, just wonderin if there is such a thing as a modulo opperator in legOS 2.4 ? i checked the stdlib.h (which seems to be the place where the math functions are), but no luck. regards kenneth johansen kennethj@stud.cs.uit.no (23 years ago, 24-May-01, to lugnet.robotics.rcx.legos)
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| | C++ and linux HELP!!!
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HI! I have the same problems as Vittorio's - we actually are working together :) - : the makefile.common in the legOS 0.2.5 version recall a g++ cross compiler instead of the cross version of gcc directly but among the tools provided there's only (...) (23 years ago, 24-May-01, to lugnet.robotics.rcx.legos)
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| | Re: Lego Camera and legOS
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(...) IIRC, the identifier chip is different, so it returns a different ID, otheriwse it is a regular QuickCam. Change the driver so it recognizes the different chip, and it should work (at least this is what it seemed to be on the robotics mailing (...) (23 years ago, 22-May-01, to lugnet.robotics.rcx.legos)
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| | Re: Lego Camera and legOS
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Hi, There are two versions of the Logitech QuickCam Express which use two different sensors and as far as I know, only one of them is supported by the alpha driver for Linux. I think that the Lego Cam (and your camera, maybe)uses the other sensor... (...) (23 years ago, 22-May-01, to lugnet.robotics.rcx.legos)
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| | Re: Lego Camera and legOS
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Last I checked, the chip which the lego camera uses is unsupported under linux. I wrote up a short discussion of what I knew at the time here: (URL) is even less than I seem to remember knowing but hopefully the link there can be helpful. Luis (...) (...) (23 years ago, 22-May-01, to lugnet.robotics.rcx.legos)
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| | Re: Lego Camera and legOS
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In lugnet.robotics.rcx.legos, Kenneth Johansen writes: . (...) AFAIK it is not possible yet. ISTR that the legocam is closely related to the Logitech QuickCam express and the project to develop drivers for the latter (look at (URL) ) will eventually (...) (23 years ago, 22-May-01, to lugnet.robotics.rcx.legos)
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| | Re: Lego Camera and legOS
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(...) argg....forgot to start a new thread, hopefully you guys will read it anyways :) kenneth johansen kennethj@stud.cs.uit.no (23 years ago, 22-May-01, to lugnet.robotics.rcx.legos)
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| | Lego Camera and legOS
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hi all, my supervisor, recently supplied me with a camera that is part of the "vision command" package. unfortunately (and naturally) it only comes with software for windoze. so i was wondering if theres anyone out there that has managed to use this (...) (23 years ago, 22-May-01, to lugnet.robotics.rcx.legos)
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| | R: c++
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Thank you Pat! I should be able to make it go. I'll tell you the results in a couple of weeks, cause I have to finish another project on lnp first. I still don't understand much the unix community: if version 2.5 is to be patched anyway, why not (...) (23 years ago, 22-May-01, to lugnet.robotics.rcx.legos)
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