 | | argh
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So, I have a quick question: has anyone built egcs 1.1.1 or 1.1.2 with gcc 2.9.5? I'm getting some very weird errors when I try to build the cross compiler- basically, it appears that the parser is trying to read certain comments as assembly (...) (25 years ago, 18-Nov-99, to lugnet.robotics.rcx.legos)
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| | rotation sensors
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Hello, one of my beautiful new rotation sensors was jammed right out of the box. I built a robot to try out dynamic equilibrum, i.e., balancing a weighted stick, only to notice that my construction didn't turn at all because of sensor friction. (...) (25 years ago, 17-Nov-99, to lugnet.robotics.rcx.legos)
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| | dkey_multi (was: Kernel dies after loading)
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(...) Now I know what makes the RCX freeze: On my RCX , the variable dkey_multi, which stores the status of the keys, always has the first bit (0x1) set. This causes the debounce loop at boot up to hang, because it thinks that the On-Off key is (...) (25 years ago, 17-Nov-99, to lugnet.robotics.rcx.legos)
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| | Re: I love my mailbox
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(...) I have to comment here that the O'Reilly "The Unofficial Guide to LEGO® MINDSTORMS™ Robots" (By Jonathan B. Knudsen, 1st Edition October 1999, 1-56592- 692-7, Order Number: 6927, 266 pages, $24.95) is one of the best "tech" books I've read in (...) (25 years ago, 16-Nov-99, to lugnet.robotics.rcx.legos)
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| | Re: I love my mailbox
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Gee. I need to write a book for O'Reilly... or at least an OS... -Luis (...) ###...### Profanity is the one language that all programmers understand. -Anonymous ###...### (25 years ago, 16-Nov-99, to lugnet.robotics.rcx.legos)
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| | I love my mailbox
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Look what I got in the mail today: two rotation sensors, courtesy of O'Reilly. Thanks, guys! Now to fix that driver for good... Markus. (25 years ago, 16-Nov-99, to lugnet.robotics.rcx.legos)
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| | Re: legOS on Win95
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(...) There was a report at one point that someone could get the cross-compiler running on Solaris, but that never materialized. My own half-hearted attempts built binutils (a beta version which might not have actually worked anyway) but never made (...) (25 years ago, 16-Nov-99, to lugnet.robotics.rcx.legos)
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| | legOS on Win95
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Hi We are a couple of 4th year Computer Science students who have been given the enviable task of programming a set of 6 RCX's to do something "impressive" (please forward any cool ideas for a project to michael.yates@studen...le.edu.au) anyhow in (...) (25 years ago, 16-Nov-99, to lugnet.robotics.rcx.legos)
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| | Yippie, heLLo world (was: Re: Kernel dies after loading)
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Hi Luis, i got thes egcs-1.1.2 sources today and rebuilt the cross-compiler and legOS and -- it works now. Thanks a lot for your help !! Could you perhaps give me a starting point to get some understanding of how legOS works internally ? (25 years ago, 16-Nov-99, to lugnet.robotics.rcx.legos)
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| | Re: Kernel dies after loading (was: Re: legOS-0.2.2)
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(...) A quick grep of the sources show that only a few things (other than lnp, which depends very heavily on interrupts) need the interrupts- task visualization and sound appear to be the two victims. If you don't need these and don't want to worry (...) (25 years ago, 15-Nov-99, to lugnet.robotics.rcx.legos)
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| | Re: Kernel dies after loading (was: Re: legOS-0.2.2)
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(...) In theory, everything should work with an unpatched cross compiler, too. legOS code checks a preprocessor define, CONF_RCX_COMPILER, I think, to determine whether patched or unpatched compilers are used. The problem is, I don't have an (...) (25 years ago, 15-Nov-99, to lugnet.robotics.rcx.legos)
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| | Re: Kernel dies after loading (was: Re: legOS-0.2.2)
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As I understand it, the patch provides support for interrupts, which, at least from my glance over the code, are necessary only for LNP stuff. (Markus, feel free to correct me on this.) So, it will compile with your "old" cross compiler and provide (...) (25 years ago, 15-Nov-99, to lugnet.robotics.rcx.legos)
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| | Re: Kernel dies after loading (was: Re: legOS-0.2.2)
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(...) does this mean legOS will or at least should compile and run without the patch ? if that's true -- what is the actual effect of the patch ? (25 years ago, 15-Nov-99, to lugnet.robotics.rcx.legos)
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| | Re: legOS on Mac
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Chris, check if gnu tools (gcc and binutils) is available for MAC, I guess they are: (URL) says: ---...--- Newsflash: gcc is included in Mac OS X Server after all. Apple just renamed it to cc. To make apps see gcc, open a terminal and type: ln -s (...) (25 years ago, 15-Nov-99, to lugnet.robotics.rcx.legos)
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| | Re: Kernel dies after loading (was: Re: legOS-0.2.2)
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Don't know much about the compiler differences (except that I thought most of the 1.1.2->2.9.5 differences would mainly cause compile-time failures, not run-time) but I have compiled every legOS thing I've done (including 0.2.1) with 1.1.2. I have (...) (25 years ago, 15-Nov-99, to lugnet.robotics.rcx.legos)
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| | Re: Kernel dies after loading (was: Re: legOS-0.2.2)
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(...) Hello Heiko & all other brave legOS'sers, i think i got some ideas related to my (and maybe someone else's) troubles. gcc 2.95.2 with Markus's patch applied looks like having general problems... I downloaded the legOS kernel contained in the (...) (25 years ago, 15-Nov-99, to lugnet.robotics.rcx.legos)
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| | Kernel dies after loading (was: Re: legOS-0.2.2)
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Hi, if I am not wrong, I have a problem similar to Martin's: When I load the legOS-0.2.2 kernel to the RCX, the kernel dies leaving "on -" on the LCD. It doesn't accept any key input, only removing the batteries helps. When I nevertheless try to (...) (25 years ago, 14-Nov-99, to lugnet.robotics.rcx.legos)
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| | legOS on Mac
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Hello, I've decided to post this question since I've not found the answer so far in previous posts. Has anyone expolored building a legOS system on the Macintosh? I've just entered the world of RC, and am intrigued by the possibilities of using (...) (25 years ago, 14-Nov-99, to lugnet.robotics.rcx.legos)
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| | legOS-0.2.2 and C++
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in the old legOS-0.1.7 there was this first-c++ demo program. I don't see it in latest version of legOS. however the sensor class is still there... what's the status on all this (parts of legOS being in C++)? does it work at all? (yes, I can try it (...) (25 years ago, 13-Nov-99, to lugnet.robotics.rcx.legos)
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| | Re: legOS-0.2.2
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Hi Markus, sorry for the delayed response, but finally i'm back: (...) i found a way that may be somewhat cleaner, by separating the lnp related header files needed by the utilities from the libc stuff: created a directory in legOS/include named (...) (25 years ago, 12-Nov-99, to lugnet.robotics.rcx.legos)
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| | legOS
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I'm looking for a complete package which includes all the tools I need to work with legOS on a Windows95 platform (or DOS). Something for a beginner if you like... Anyone know where to find this? CU Bert Lego robots and artificial intelligence (URL) (...) (25 years ago, 11-Nov-99, to lugnet.robotics.rcx.legos)
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| | Re: communication PC <-IR-> RCX
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Hi Pavel, check out the program loader. Basically, you have to register your own port handler for incoming packets on the PC. You should also acknowledge them in some way, so the RCX knows what's going on. Maybe IR networking should become secure. (...) (25 years ago, 11-Nov-99, to lugnet.robotics.rcx.legos)
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| | Re: communication PC <-IR-> RCX
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(...) You can use lnp_logical_write. But - the IR tower automatically turns off if nothing has been sent through it, so in order to see the data coming in, you have to keep sending something through the tower. [...] -- Regards, Modemch (25 years ago, 11-Nov-99, to lugnet.robotics.rcx.legos)
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| | communication PC <-IR-> RCX
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Does anybody have an example of a LegOS program that sends data back from the RCX to the PC? Is this possible also with SPIRIT.OCX poll/datalog protocol? Tnanks, Pavel. e-mail: petrovic@ifi.ntnu.no (25 years ago, 11-Nov-99, to lugnet.robotics.rcx.legos)
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| | Re: legOS-0.2.2
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Hi Martin, the FD_ZERO bug sounds interesting. Maybe there's a way to work around this issue in a more portable way? Like, remove /usr/include from the Makefile and hope for the best? The debugging output shows that the host is sending packets and (...) (25 years ago, 9-Nov-99, to lugnet.robotics.rcx.legos)
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| | Re: Hapless WinNT user
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(...) Here is a suggestion for those who are trying it on NT. (I can't right now- access problems :( In Makefile.common, line 20, add the flag -nostdinc (i.e., line 20 should read "COPT =-O2 -fno-builtin -fomit-frame-pointer -nostdinc"). (...) (25 years ago, 9-Nov-99, to lugnet.robotics.rcx.legos)
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| | Re: legOS-0.2.2
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(...) well, i got it and compiled everything using linux 2.2.13 and glibc 2.01. My native compiler is gcc 2.95.1, for cross compiling i built gcc 2.95.2, after applying the rcx-interrupt patch. compiling the dll and makelx utilities was a little (...) (25 years ago, 9-Nov-99, to lugnet.robotics.rcx.legos)
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| | Re: Hapless WinNT user
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Apparently, standard gcc include files are processed as well. This should never happen, as legOS defines everything on its own. Maybe there's an additional command-line switch for that? -Y or something? Good luck, Luis - I have access to a NT box in (...) (25 years ago, 9-Nov-99, to lugnet.robotics.rcx.legos)
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| | Re: Hapless WinNT user
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I'm afraid these are the same errors that were reported with 0.2.1. It would appear that it is looking at a very long and convoluted path which happens to include the standard gcc, not just the cross-compiler. But that is just a guess based on a (...) (25 years ago, 8-Nov-99, to lugnet.robotics.rcx.legos)
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| | Hapless WinNT user
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That's me, trying to use legOS 0.2.2 on WinNT with CygWin. I'm using the same tools that worked for me for legOS 0.1.7. Make complains when it tries to build dll, specifically when it tries to compile loader.c. I get a bunch of redefined symbols and (...) (25 years ago, 8-Nov-99, to lugnet.robotics.rcx.legos)
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| | legOS-0.2.2
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Hello, legOS-0.2.2 is out. Generating user programs doesn't require perl anymore, and several bugs have been fixed. Get it at (URL) "Nieder mit den Zitaten!" -Markus L. Noga <markus@noga.de> (25 years ago, 7-Nov-99, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx)
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| | Re: legOS patches
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Hi Frank, first, let me thank you for your effort! It's only through collaboration that we can keep this system evolving. (...) This looks very well thought out. Originally, I didn't want to reset motors, sensors or networking, because it makes for (...) (25 years ago, 7-Nov-99, to lugnet.robotics.rcx.legos)
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| | arbitrary motor code
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Whatever happened to the arbitrary motor code? Lou had given me the impression (ages ago) that there was a solution for 0.2.0, but I don't see it. Is someone still working on it? I can give it a shot if no one else is looking at it... -Luis (...) (25 years ago, 6-Nov-99, to lugnet.robotics.rcx.legos)
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| | Re: 0.2.1 API
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That was me. Sorry Luis - I've been outta touch lately. Kevin (...) (25 years ago, 5-Nov-99, to lugnet.robotics.rcx.legos)
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| | Re: makelx issues
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According to Luis Villa: (...) I'll post the new version this weekend, then ;-) (...) It will be for convenience only with the new release - all front- and backends are integrated, so it's only Make that needs to know about program locations. (...) (25 years ago, 5-Nov-99, to lugnet.robotics.rcx.legos)
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| | Networking
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I saw mention of adding UDP support to the legOS Network and was curious if anyone had started work on it. I'd like to start a project where multiple RCXs communicated with each other and could communicate learned information to each other. The (...) (25 years ago, 5-Nov-99, to lugnet.robotics.rcx.legos)
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| | Re: makelx issues
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(...) Hmm. Well, I'll put off testing on windows then- I don't have permission (I don't think) to put perl on those boxes. (...) It turns out that just putting the legOS/util in the path did the trick. I had asssumed that was just for convenience, (...) (25 years ago, 5-Nov-99, to lugnet.robotics.rcx.legos)
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| | Re: makelx issues
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Hi Luis, (...) I rewrote makelx-back - it's called makelx now, and it doesn't require perl anymore. I just didn't post it yet, as it didn't merit a 0.2.2 release just yet. At least in my eyes. For now, try and insert a line into makelx that prints (...) (25 years ago, 5-Nov-99, to lugnet.robotics.rcx.legos)
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| | Updating the Web based compilers?
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Would it be possible for any of the very kind people who maintain the LegOS Web Based Compilers be able to update their compilers to the latest 0.2.1 version of LegOS? Dying to try out the new programming features... Dave Chen (25 years ago, 5-Nov-99, to lugnet.robotics.rcx.legos)
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| | makelx issues
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I'm trying to use 0.2.1 and having problems- no executables are appearing in the demo/ directory. Stepping through the make, I can see that the .dc1, .dc2, etc. files are being made (whether or not correctly I have no idea.) Running make-lx (...) (25 years ago, 4-Nov-99, to lugnet.robotics.rcx.legos)
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