 | | Re: HOWTO going down
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I'll put them up on Maktos.com's server! Just e-mail them to me. I'll send you the link when they're uploaded. Matt Luis Villa wrote in message ... (...) (24 years ago, 18-May-00, to lugnet.robotics.rcx.legos, lugnet.robotics)
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| | Can't get Windows compiler!
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The main LegOS site has some MAJOR dead links! Does anyone have a mirror I could use? I need the Windows version of the cross compiler, etc. A LOT of links were dead...probly because it was a university server, and they all go down for the summer. (...) (24 years ago, 18-May-00, to lugnet.robotics.rcx.legos)
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| | Re: local variables
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(...) This is completely true and is basically a feature of the C language. Globals aren't technically "initialized" at all. They are just loaded as part of the image. You could consider that they are initialized at compile time. On a workstation OS (...) (24 years ago, 17-May-00, to lugnet.robotics.rcx.legos)
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| | Re: lnp communication question
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Remember the medium... cheap IR basically stinks for transmission. You get transients from the lights in your room, the outdoors, yadda, yadda. Luis (wishing for RF like the Europeans get ;) (...) ---...--- "Going to California with an aching in my (...) (24 years ago, 17-May-00, to lugnet.robotics.rcx.legos)
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| | Re: lnp communication question
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(...) This suprises me. I have never heard of such high packet losses. How does dll do this? With some kind of ack and retry mechanism? dll seems reliable. Of course dll is going in the other direction. (24 years ago, 17-May-00, to lugnet.robotics.rcx.legos)
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| | Re: lnp communication question
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You just pass an array and give the length, to send it. In theory you can send packets with a size up to 255 bytes (look in this group, the info is in here somewhere), but sending 1 byte has a packet loss of aprox. 1% and 4 bytes aprox. 10%, over (...) (24 years ago, 17-May-00, to lugnet.robotics.rcx.legos)
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| | Re: local variables
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(...) I think you're confusing the issue a little bit. LegOS only initializes GLOBAL variables when the program is loaded. So, for example, a global variable declared like: int foo = 4; Will only be initialized to 4 when the program is loaded. If (...) (24 years ago, 17-May-00, to lugnet.robotics.rcx.legos)
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| | local variables
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Hi! I read that legOS only declared varibles the first time the program is run. Does this mean I cannot use local variables. I have loops in different functions using 'i' as looping variable, which is locally declared. Should I avoid this? Tobias (24 years ago, 16-May-00, to lugnet.robotics.rcx.legos)
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| | Re: lnp communication question
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(...) So the length-argument tells lnp_integrity_write how many bytes to send? Doesn't that mean that it would be possible to send an array consisting of many integers, for example? How would this be done? (...) We plan to build a six-legged lego (...) (24 years ago, 16-May-00, to lugnet.robotics.rcx.legos)
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| | winlegos compiler problem
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I am trying out the lnp functionality with addressing and such, and of course I had to recompile the legos kernel. That, in itself, seemed to go without a hitch, but when I later tried to compile one of the demo programs, this is what I got. djecho (...) (24 years ago, 16-May-00, to lugnet.robotics.rcx.legos)
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| | Re: lnp communication question
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Hello Tobias, (...) Why do you think there's only 1 byte that can be sent? If your data buffer is longer, bytes are sent one-by-one serially in a packet... (...) look into lnp.c and you will see that both lnp_integrity_xxx and lnp_addressing_xxx are (...) (24 years ago, 15-May-00, to lugnet.robotics.rcx.legos)
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| | due to popular demand
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The HOWTO and other legOS archives will be available (until I get it to sourceforge) at (URL) for the people who wrote and volunteered to serve it- the archives now total something like ~100 meg (several different copies of compilers are in there) (...) (24 years ago, 15-May-00, to lugnet.robotics.rcx.legos)
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| | lnp communication question
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Hi! When using lnp_integrity_write(&data, length), what is the length argument used for? The data can only be one byte long if I understand it correctly. Can I use the length argument to send an additional byte of information? Is there anyway I can (...) (24 years ago, 14-May-00, to lugnet.robotics.rcx.legos)
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| | Re: It's time to release some patches for LegOS 0.2.4
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"Harald Mährer" <hmaehrer@debis.com> wrote in message news:391bcf0d.129529...net.com... (...) (URL) - on my NT i have more than one (logical) drive to keep system, (...) I have cygnwin in my NT partion and legOS in another one. No problem at all. I (...) (24 years ago, 13-May-00, to lugnet.robotics.rcx.legos)
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| | Re: HOWTO going down
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One other thing- this will of course mean that the various other files accessible at arthurdent.dorm.duke.edu will be unavailable. I will try to move as many of these as possible to legOS.sourceforge.net before I lose my ethernet connection, but I'm (...) (24 years ago, 13-May-00, to lugnet.robotics.rcx.legos, lugnet.robotics)
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| | HOWTO going down
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I'm taking down the HOWTO for the next couple of weeks while I move out of my dorm and back home for the summer. When it comes back up (two weeks, three at the most) it'll be up to date (0.2.4!) and on legOS.sourceforge.net (probably /HOWTO/). Just (...) (24 years ago, 13-May-00, to lugnet.robotics.rcx.legos, lugnet.robotics)
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| | rcx remote for video (LANC or IR)
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did anyone try to use the rcx as a controller for camcorders either using LA NC (Control-S) or Ir ? (24 years ago, 13-May-00, to lugnet.robotics.rcx.legos)
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| | Re: It's time to release some patches for LegOS 0.2.4
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(...) Hi all. So far, i've got the 0.2.3.1 Version running on my laptop (W95) but not on my desktop (WIN NT). Questions remaining - where do i find the 0.2.4 version? I followed the ftp link on the cvs server to find 0.2.3 but where's 0.2.4? - on my (...) (24 years ago, 12-May-00, to lugnet.robotics.rcx.legos)
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| | Re: Has anyone used lnpd succesfully?
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(...) Of course, but also currently not very available. But i still would like to fix this problem, or at least find the reason. Sporadically, i'm working or better say thinking about an enhanced version of lnpd, but i think this doesn't make much (...) (24 years ago, 4-May-00, to lugnet.robotics.rcx.legos)
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| | Re: make error in Linux build for LegOS 0.2.4
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(...) This was one of the first things that I tried but it complained about other tools it couldn't find. It's been a while but I think it had pass1 in the name. Nothing in my bin directory seemed to match. Frankly I stopped working on it since I (...) (24 years ago, 4-May-00, to lugnet.robotics.rcx.legos)
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| | Re: make error in Linux build for LegOS 0.2.4
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Steve morris <smorris@nexen.com> wrote in message news:390EC1B5.416273...xen.com... (...) c++.cpp. The (...) I must have an (...) the cross tools. (...) Try changing the references from <h8...>g++ to <h8...>gpp. Rossz (24 years ago, 4-May-00, to lugnet.robotics.rcx.legos)
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| | Re: make error in Linux build for LegOS 0.2.4
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(...) /root/legos_new/legOS. (...) "s/legOS.*/legOS/i") which ends up (...) it out doesn't (...) sed support (...) something like: (...) I've modified in: export LEGOS_ROOT=$(shell pwd | sed -e "s/\\(.*\\)LegOS.*/\1legOS/i")/ that should works. (...) (24 years ago, 2-May-00, to lugnet.robotics.rcx.legos)
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| | Re: Windows communication to the RCX
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Hello all, after playing a bit with Manuel's application, I ended with a console Win32 application to send/receive LNP messages. It's more simple and ready to be used in combination with other applications. However, it doesn't use overalapped I/O (...) (24 years ago, 2-May-00, to lugnet.robotics.rcx.legos)
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| | Re: make error in Linux build for LegOS 0.2.4
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(...) I tried that already. I since tried to interpret the output of "make -d" and think I found it. The problem is in the definition of LEGOS_ROOT. I am in /root/legos_new/legOS. In Makefile.common it is calculated with (pwd | sed -e (...) (24 years ago, 2-May-00, to lugnet.robotics.rcx.legos)
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| | Re: make error in Linux build for LegOS 0.2.4
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"Steve morris" <smorris@nexen.com> ha scritto nel messaggio news:390E39A3.D49806...xen.com... (...) Have you tried using: $ make clean $ make realclean $ make depend I suspect that you miss .depend files (but I'm not sure). Bye, Paolo. --- Anyone (...) (24 years ago, 2-May-00, to lugnet.robotics.rcx.legos)
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| | make error in Linux build for LegOS 0.2.4
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I haven't spent much time analyzing this yet but here is the log. This seems familar somehow but I can't remember why. I checked my 0.2.3 area and it builds fine. I've been diff'ing makefiles but nothing leaps out so far. Note that I do make twice. (...) (24 years ago, 2-May-00, to lugnet.robotics.rcx.legos)
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| | It's time to release some patches for LegOS 0.2.4
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I've just released on legos.sourceforge.net my patches for LegOS. I was waiting for some life signal from Marcus. In absence of those signals, I assume that all is right... ;-) Forgive me if I broke down something for Linux people, but if I didn't (...) (24 years ago, 1-May-00, to lugnet.robotics.rcx.legos)
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| | Re: Makefile question
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(...) I have added random number generators to either of the c library, or to the float library (v0.2.3, on Linux). What I did was cd to the lib/c (say) directory, and deposit my source files there. I then edited the Makefile in this directory, and (...) (24 years ago, 28-Apr-00, to lugnet.robotics.rcx.legos)
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| | Re: Has anyone used lnpd succesfully?
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Yes. I have used it successfully, though not always... In my case it seems to be a problem with the uart 16550A. It does not switch to low lattency mode correctly making the tower blind to the RCX. I circumvented the problem setting the UART type as (...) (24 years ago, 28-Apr-00, to lugnet.robotics.rcx.legos)
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| | Has anyone used lnpd succesfully?
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(...) Are there known conditions where lnpd works and doesn't work? Are there versions of LegOS which support it better? Mostly I wish I had at least one report of success that would suggest that there is hope at the end of my tunnel. I cannot do my (...) (24 years ago, 27-Apr-00, to lugnet.robotics.rcx.legos)
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| | Re: lnptest gives collision errors. Sigh...
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(...) I guess there is no hope. I found a long thread here with someone else who had a collision problem . I applied the patch to transmitter.c mentioned in that thread with the same result. I downloaded lnpd.static from arthurdent. Same result. I (...) (24 years ago, 27-Apr-00, to lugnet.robotics.rcx.legos)
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| | lnptest gives collision errors
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I'm trying to use lnpd. First I'm trying to get the test app working o - installed the patch and reloaded the firmware. o - downloaded the rcx version of lnptest with dll (I can't get dllx to work) o - do tke appropriate setserial command o - start (...) (24 years ago, 25-Apr-00, to lugnet.robotics.rcx.legos)
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| | Desire Rack & Pinion design
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Can anyone direct me to some decent pictures of a rack & pinion steering system? Thanks. Rossz (24 years ago, 24-Apr-00, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Re: task switching strategy?
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On Fri, 21 Apr 2000, Steve Morris wrote: <snip lots of discussion, some of which I understand now and the rest of which will probably make more sense after I take OS next semester.> (...) I think the big thing is that virtually no one write CPU (...) (24 years ago, 22-Apr-00, to lugnet.robotics.rcx.legos)
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| | task switching strategy?
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I've been wandering through the kernal comparing it to similar kernals I have known or written, trying to understand the design choices. It appears that task are only switched at the 1ms timer interrupt and at yield() function call. yield() is only (...) (24 years ago, 21-Apr-00, to lugnet.robotics.rcx.legos)
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| | Makefile question
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I finally have a project that's large enough and well-enough organized that I have two .c files. (One holds fixed-point math routines.) Now, the README file states "If you need more source files, add them in the Makefile." My question is, what and (...) (24 years ago, 21-Apr-00, to lugnet.robotics.rcx.legos)
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| | weird legos 0.23 problems
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I post this message without much investigation but I am confident I wouldn't find this issue easily. I have compiled code that was running fine on the rcx of approaching 4k size. unfortunately my short term memory failed / I didn't commit my work to (...) (24 years ago, 20-Apr-00, to lugnet.robotics.rcx.legos)
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| | Re: Windows communication to the RCX
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Hello Manuel, Thanks for this post, this is exactly what we need! Would you, please, send us your Windows and RCX codes that handle the communication? We tried to use lnpd on Linux, but the test example program seems to not work properly and I (...) (24 years ago, 19-Apr-00, to lugnet.robotics.rcx.legos)
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| | (canceled)
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| | brake broke?
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I'm having trouble with braking (as opposed to free-wheeling) motors. When I use motor_a_dir(brake), the motor brakes OK, but cannot be restarted. Subsequent motor_a_dir(fwd/rev) calls have no affect, the motor stays braked. I can tell this by (...) (24 years ago, 18-Apr-00, to lugnet.robotics.rcx.legos)
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