 | | Re: about lnp_integrety_write
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(...) Hi, the function does exactly what the name says...it sends a LNP integrity layer packet of given length. Anyway the function seems to be unused. lnp_addressing_write() is e.g. used to send the acknowledges in program.c, which makes perfect (...) (23 years ago, 3-Aug-01, to lugnet.robotics.rcx.legos)
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| | about lnp_integrety_write
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anyone know what this function does? i could get no reference to it under the legOS howto written by luis villa. ive tried sending messages both with it and without it and it seems to work anyways. regards kenneth johansen kennethj@stud.cs.uit.no (23 years ago, 3-Aug-01, to lugnet.robotics.rcx.legos)
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| | Re: Is this an error in legOS 0.2.5?
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(...) Hmmm, yes, you are right. In fact it woudn't make sense. My actual robot uses a little neural net and if battery goes low, the actual data will be sent to the PC to be saved. For this, it would be nice if the RCX makes some noise, I grab it, (...) (23 years ago, 31-Jul-01, to lugnet.robotics.rcx.legos)
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| | Re: Is this an error in legOS 0.2.5?
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(...) ultra-low (...) Would that really make sense? Since changing batteries destroys all memory, the program will not survive despite advance warning about the impending doom of battery low. In effect, changing the batteries is equivalent to the (...) (23 years ago, 30-Jul-01, to lugnet.robotics.rcx.legos)
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| | Re: Is this an error in legOS 0.2.5?
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So in the original firmware, the system is shut down if ultra-low battery is detected. If we don't want tot do that, we could change the ">" in the 2nd compare to a "<" to get some hysteresis. Or would it be usefull to stop legOS and do a shut-down (...) (23 years ago, 29-Jul-01, to lugnet.robotics.rcx.legos)
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| | Re: Is this an error in legOS 0.2.5?
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(...) in (...) Statement should be right. It's same behavier found in original firmware: (URL) (battery power (cc5a) > 1a2c (6700 mV)) call ROM 1e4a (r6=301b) // clear battery low indicator else if (battery power (cc5a) > 189c (6300 mV)) call ROM (...) (23 years ago, 28-Jul-01, to lugnet.robotics.rcx.legos)
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| | lnp logical layer and collison detection
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Hi, 1: does anybody know if the collision detection in the (LNP) logical layer relies on the LNP-packtstructure of is this kind of collison detection done without knowing the packetstructure of LNP ? 2: does anybody have simple routines to send and (...) (23 years ago, 26-Jul-01, to lugnet.robotics.rcx.legos)
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| | Makefile Design - Observation, and Query to Paolo Masetti
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The latest CVS version of legOS adds explicit detection of CygWin 1.1 (and by extension 1.3) This did, however work anyway, with Cygwin 1.1 being detected alongside the older cygwins, due to a quirk in make's findstring - specifically, that: (...) (23 years ago, 25-Jul-01, to lugnet.robotics.rcx.legos)
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| | re: remote control
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(...) I dont know if this is what you are looking for, but it appears to do the same thing over the web. I havent taken much of a look at it. (URL) (23 years ago, 23-Jul-01, to lugnet.robotics.rcx.legos)
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| | remote control
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hi all, ive been out of the loop for a while now (summer vacation). so if this has been discused lately forgive my ignorance. im working on a program that lets me control the RCX from a PC using the IR tower. im using legOS 2.4 on redhat 6.1. i am (...) (23 years ago, 23-Jul-01, to lugnet.robotics.rcx.legos)
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| | Re: Fix for remote patch
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(...) I'll post a diff eventually, but in the meantime, just apply the remote patch from sourceforge, open util/dll-src/rcxtty.c, find the following block, and make the changes to the two lines marked //!!! // Serial settings FillMemory(&dcb, (...) (23 years ago, 21-Jul-01, to lugnet.robotics.rcx.legos)
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| | Re: Fix for remote patch
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(...) Hi, Its good to know that there is a bug and that there is someone who knows how to fix it. Could you maybe send me some sample code for the rcx and the win32 side ? I dont want anything special just a few lines of code for each side (rcx and (...) (23 years ago, 21-Jul-01, to lugnet.robotics.rcx.legos)
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| | Re: LegOS, WIN98 & Cygwin 1.3.2
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Nice to be appreciated :-) Running the command 'strip -s *.exe' for each directory containing .exe files reclaims considerable disc space, by removing dubugging information which is embedded in the .exes. P.S. I did briefly experiment with a mingw (...) (23 years ago, 21-Jul-01, to lugnet.robotics.rcx.legos)
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| | Fix for remote patch
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The remote patch on the sourceforge website is slightly broken on Win32. (The necessary code changes have been made in a Linux only section, but the Win32 bit is untouched. The problen is util/rcxtty.c, which does not set the correct (odd) parity (...) (23 years ago, 21-Jul-01, to lugnet.robotics.rcx.legos)
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| | LegOS, WIN98 & Cygwin 1.3.2
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Hello, Well after a week of head beating, cursing, downloads and chicken waving AND a great deal of help from Max Bowsher (this last bit was actually the most useful :-) I finally have legOS up and running with the above setup. Had I followed Max's (...) (23 years ago, 21-Jul-01, to lugnet.robotics.rcx.legos)
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| | sample code for the remote patch (pc side)
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Hi, is anybody using the remote patch ? I d be glad if anybody could post or send me some sample code for the pc-side where remote messages are send to the RCX. Thanx, Olaf Christ (23 years ago, 20-Jul-01, to lugnet.robotics.rcx.legos)
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| | Re: Hardware Hacking of RCX
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Roy Wood wrote: (snip) (...) (snip) Hmm... Heres one idea that'll look REALLY good on your resume :) Asymmetric Multiprocessing: RCX -> Basic Stamp 2p40 Use the RCX to communicate with a Parallax Basic Stamp. You can use a 5v regulator and control (...) (23 years ago, 19-Jul-01, to lugnet.robotics.rcx.legos)
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| | Re: Hardware Hacking of RCX
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(...) Hi, if want to use more sensors, then you might wanna look at (URL) a look at "3 Sharps using 1 input", heat up your soldering iron and have fun. Olaf Christ ---...--- If knowlege is power, how come the more I learn, the more I realize how (...) (23 years ago, 19-Jul-01, to lugnet.robotics.rcx.legos)
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| | Hardware Hacking of RCX
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Considering that LegOS talks directly to the hardware, this seems like a good place to ask the following questions. I am yet again frustrated at having only three inputs and three outputs on my RCX, and am wondering at the possibility of hacking the (...) (23 years ago, 18-Jul-01, to lugnet.robotics.rcx.legos)
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| | Setup of winlnp
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Hello, I'm having problems setting up winlnp and getting it to work. I have downloaded, compiled and utilized legos 0.2.5 successfullyand have downloaded and compiled the winlnp visual c++ package. But i haven't found any thorough documentationon (...) (23 years ago, 18-Jul-01, to lugnet.robotics.rcx.legos)
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| | Re: CVS
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(...) Recently sourceforge decided to get rid of the mixed case identifiers. You should use this CVSROOT: cvs -d:pserver:anonymous...root/legos login But it is still "co legOS" to checkout the sources Jochen (23 years ago, 17-Jul-01, to lugnet.robotics.rcx.legos)
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| | Re: Problems installing in Win98
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Thanks for the info. I'm downloading the sources for binutils and gcc even as I write this. I'll let you know how it turns out. regards (23 years ago, 16-Jul-01, to lugnet.robotics.rcx.legos)
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| | Re: Problems installing in Win98
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(...) You will need both source and binary tarballs of gcc and binutils, from the CygWin setup utility. You may also need autoconf, automake, flex, yacc, bison etc. -- or not, I don't know. They were installed when I did my build. You should also (...) (23 years ago, 16-Jul-01, to lugnet.robotics.rcx.legos)
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| | Suggested Makefile Changes
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'make realclean' causes a rebuild of .depend in legOS/util/dll-src. This is inconsistent with other places .depend files are used. dependency building in the lib branch of the tree is not triggered, and would use the old-style makedepend program, (...) (23 years ago, 16-Jul-01, to lugnet.robotics.rcx.legos)
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| | Re: Problems installing in Win98
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(...) Thanks for the reply. I looked at your post, sorry I'm not able to comment on what files are needed, I'm just now getting into all this. How difficult was it doing the build on your machine? Could you post or send me the steps you followed or (...) (23 years ago, 16-Jul-01, to lugnet.robotics.rcx.legos)
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| | Re: Problems installing in Win98
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Yes, it is possible. I have legOS running under Cygwin 1.3.2 (latest net release). I did, however, compile the cross compiler from source. See my post 'Toolchain for Cygwin 1.3.2 (latest)', dated 14/07/01 18:34, 2 posts before yours. Given that (...) (23 years ago, 16-Jul-01, to lugnet.robotics.rcx.legos)
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| | Re: Multiple source files
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Hi, Assuming you have a.C and b.C, and you want to build b.lx, then the following Makefile fragment will work, if you patch your Makefile.user as given below. **** Begin Makefile Fragment **** all: b.lx # Specify all targets to build b.ds1 b.ds2: (...) (23 years ago, 16-Jul-01, to lugnet.robotics.rcx.legos)
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| | Problems installing in Win98
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Hello, I am trying to install legOS on a WIN98 machine with cygwin 1.3.2. I am have problems with the cross compiler. I just noticed the statement on (URL) that the cross compiler was compiled against the older version of cygwin and that it won't (...) (23 years ago, 16-Jul-01, to lugnet.robotics.rcx.legos)
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| | CVS
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Hi all I'm trying to get the latest code from the cvs root as anonymous. It doesn't seem to let me login using the anonymous. I'm following the instructions on the sourceforge page: cvs -d:pserver:anonymous...root/legOS login but it tells me (...) (23 years ago, 15-Jul-01, to lugnet.robotics.rcx.legos)
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| | 'Erase legOS' keystrokes - Please correct docs
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The 'hold Prgm, and press On-Off' sequence does not work for me. It is necessary to press On-Off *twice* whilst holding Prgm.If someone is unlucky enough not to decide to just press random buttons for a while, the might not figure this out. Great (...) (23 years ago, 14-Jul-01, to lugnet.robotics.rcx.legos)
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| | Toolchain for Cygwin 1.3.2 (latest)
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I have recently built binutils+gcc for the latest cygwin net release. I am investigating the possibility of posting them on the net, but I would like to decrease the file size as much as possible. I have already done 'strip -s' on the .exes, but I (...) (23 years ago, 14-Jul-01, to lugnet.robotics.rcx.legos)
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| | Multiple source files
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How can I reconfigure the makefiles to allow me to create a .lx file from multiple .cpp files? I am not familiar with the compiler and its tools. (23 years ago, 13-Jul-01, to lugnet.robotics.rcx.legos)
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| | RCX_COMPILER define
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I am a new legOS user. Here is summary of my setup: CygWin 1.3.2 and associated bits. h8300-hms targeted binutils and gcc built from the CygWin source tarballs. I have been reading past posts to this group, and come across references to (...) (23 years ago, 13-Jul-01, to lugnet.robotics.rcx.legos)
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| | Makefile bug in legOS 0.2.5 for win32
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legOS 0.2.5 does not correctly add -D_WIN32 to CFLAGS when run under cygwin. This causes the dll and firmdl3 produced to be non-functional. Adding the define and recompiling corrects this. Also, there are stale .depend files in the 0.2.5 distro. (...) (23 years ago, 10-Jul-01, to lugnet.robotics.rcx.legos)
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| | Is this an error in legOS 0.2.5?
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Hi, browsing through the legOS 0.2.5 source I found the following part in kernel/battery.c: ---...--- //! battery indicator handler, called from system timer interrupt #ifdef CONF_RCX_COMPILER void battery_refresh(void) { #else (...) (23 years ago, 2-Jul-01, to lugnet.robotics.rcx.legos)
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| | 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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| | cvs changes
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Hi, I checked into the CVS repository some changes today. They include: A) a fix to util/dll-src/Makefile to reference ../../kernel/lnp.c, so a symbolic link or copy is not required. B) small changes to various makefiles to get c++ support working (...) (23 years ago, 21-May-01, to lugnet.robotics.rcx.legos)
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| | Re: c++
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Hi, Sorry that I've been AWOL! Attached is a set of patches you can apply to the 2.5 distribution to clean up most of the make process. You will still have to correctly specify the TOOLPREFIX in Makefile.common, or via the make command line. You can (...) (23 years ago, 21-May-01, to lugnet.robotics.rcx.legos)
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| | c++
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Is c++ supported in legOs2.5 ? We've been unable to compile even the demos! (I already posted about that) Please give us a voice! thanks Ciao, Vittorio (23 years ago, 20-May-01, to lugnet.robotics.rcx.legos)
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| | Trouble loading programs
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Hi all, I'm new to legos and am having some problems loading programs. I have searched the news pages for my particular error and there are some that are close but not exactly. I hope someone can help because I am currently "dead in the water". Here (...) (23 years ago, 19-May-01, to lugnet.robotics.rcx.legos)
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| | Re: Floating ponts ??
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(...) Exceptions to the 0th law: You are manipulating and comparing floating-point values you know are integers with a magnitude less than a million or two. You are manipulating and comparing values you know are integer multiples of some power of (...) (23 years ago, 17-May-01, to lugnet.robotics.rcx.legos)
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| | Re: Floating ponts ??
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Hi there! (...) 0th law of computer science: NEVER use == on floats; it simply doesn't work as expected. In most cases a value cannot be exactly represented as a float variable; so MOST comparisons for equality WILL fail. (this is NOT an issue of (...) (23 years ago, 17-May-01, to lugnet.robotics.rcx.legos)
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| | Re: lnpd
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Ah. Those links. I have asked Markus to move those a couple of times but he no longer responds to my emails. I'm afraid that until he does those links will remain in place (and remain quite dead.) Sorry... Luis (...) ---...--- "Nobody ever said that (...) (23 years ago, 16-May-01, to lugnet.robotics.rcx.legos)
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| | Re: lnpd
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(...) This is old news, but I didn't find any answer to it while there are still two such links on (URL) the Doc section, the link to the HOWTO points to (URL) in the File section, the link to the Windows 9x/NT compiler points to (URL) (23 years ago, 16-May-01, to lugnet.robotics.rcx.legos)
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| | Re: permissions
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(...) Thanks! But rather than do things for a single user I opted for: chmod 666 ttyS0 If I'm not mistaken, this will give every user access to Serial port 0 (comm 1). Since my system only uses comm 1 for the lego tower this seems like a safe thing (...) (23 years ago, 15-May-01, to lugnet.robotics.rcx.legos)
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| | Re: permissions
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the following error as a user. [James@Sauron demo]$ ../util/dll helloworld.lx open: Permission denied opening tty: Permission denied To what directory or files does my user need permission? I tried using a find on tty to no avail. A little help? if (...) (23 years ago, 15-May-01, to lugnet.robotics.rcx.legos)
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| | permissions
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Hello, The first thing I have ever installed on a *nix platform was legOS on my recently (last week) converted Redhat Linux PC. I didn't really know how this sort of thing is supposed to work, so I did the whole install as root. Of course after I (...) (23 years ago, 15-May-01, to lugnet.robotics.rcx.legos)
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| | Re: API changes
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I agree with most of Luis statement. I've worked for three years in the embedded software development (for cars), and I think it's quite dangerous to have RCX functions with the same name that Unix ones, because they don't do the same thing. Using (...) (23 years ago, 14-May-01, to lugnet.robotics.rcx.legos)
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| | Re: API changes
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I'm actually on my way to my baccalaureate ceremony right now, but I do want to say that I feel very strongly that API changes for the sake of API changes should not be checked in. The current API, while not always intuitive, is well documented and (...) (23 years ago, 12-May-01, to lugnet.robotics.rcx.legos)
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| | Re: API changes
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(...) I don't imagine that these changes will increase memory usage much, since they are largely just re-working existing features. I will look into the memory usage before releasing, though. In fact, I think that after I redid the networking a bit (...) (23 years ago, 12-May-01, to lugnet.robotics.rcx.legos)
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| | Re: API changes
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My only concern with these proposed changes is possible increased memory usage. Encapsulation, error reporting, thread synchronisation etc are nice; but with just 32k of RAM I would question whether these are appropriate for some applications. For (...) (23 years ago, 11-May-01, to lugnet.robotics.rcx.legos)
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| | Re: API changes
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(...) These seems to me good ideas. Adding errno would also be useful. bye Bernardo New e-mail: dibbe@freestation.it (23 years ago, 10-May-01, to lugnet.robotics.rcx.legos)
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| | Re: new features
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(...) I think it'll be very useful. (...) I worked on a reliable transport protocol written on top of LNP for my thesis a few months ago. It was my intention to make it available on the Internet, but I wasn't very happy with the implementation, (...) (23 years ago, 10-May-01, to lugnet.robotics.rcx.legos)
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| | API changes
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In using legOS, I've found that many of the design decisions seem somewhat backwards, and I think that this is due to a desire to keep the interface as similar as possible to NQC. I was wondering what people would think about changing the core API (...) (23 years ago, 10-May-01, to lugnet.robotics.rcx.legos)
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| | new features
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I just checked in a change to CVS which adds a new feature. Let me know if you have any problems with this: /* When no program is running, pressing the "view" button cycles through * a display of the amount of the amount of free memory (in decimal (...) (23 years ago, 10-May-01, to lugnet.robotics.rcx.legos)
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| | problems with legOS 0.2.5 and C++ compiling
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due to makefile used in 0.2.5 version, when i try to make a c++ program it searches for h8300-hitachi-g++ but this executable cross compiler is not present in the file conataining gcc cross compiler and the other tools - i downloaded it from this (...) (23 years ago, 4-May-01, to lugnet.robotics.rcx.legos)
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| | Re: Floating ponts ??
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(...) Double check the actual program you are test to make sure that you don't have: p = 0.4 /* Only one = */ This is the number one "c" typo and is easy to overlook Lester been there, done that (23 years ago, 4-May-01, to lugnet.robotics.rcx.legos)
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| | Re: Floating ponts ??
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(...) I can't check this out now, but keep e-mailing me until I do. -Kekoa kekoa@graphics.stanford.edu (23 years ago, 4-May-01, to lugnet.robotics.rcx.legos)
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| | Floating ponts ??
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Hello everybody I am writing a program that uses floats, but I have some problems. If I write /******/ float p; p = 0.3; if(p == 0.4) do something; /******/ The if statement evaluates to true. Is there anything special I have to do to use floats in (...) (23 years ago, 3-May-01, to lugnet.robotics.rcx.legos)
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| | RE: LegOS bug - firmware unlock string not below CC00h in some circumstances
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(...) Argh! This is so typical of many embedded projects that I have seen go sour over the years. It's due to not using the linker to full advantage. In my firmware, I declare the string in its own .text section (you can do this in inline assembler (...) (23 years ago, 29-Apr-01, to lugnet.robotics.rcx.legos)
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| | LegOS bug - firmware unlock string not below CC00h in some circumstances
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Just thought I'd better report this... Firmdl3 is unable to download very large statically linked programs (with a .text segment greater than 4c00h bytes). Unlike previous size related bugs, this is *not* caused by firmdl, but rather by kmain.c. (...) (23 years ago, 28-Apr-01, to lugnet.robotics.rcx.legos)
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