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 Robotics / RCX / legOS / *3819 (-40)
  help building gcc cross-compiler (long)
 
I'm following Matthias Erhmann's excellent BrickOS Linux Installation HOWTO, and I've hit a snag. When executing the "make" command in step 2.2 to make the gcc cross-compiler, I got the error below. I commented out the first three lines of the (...) (20 years ago, 11-Oct-04, to lugnet.robotics.rcx.legos)
 
  Re: Respondre el missatge: LNPd problems
 
(...) ... (...) ... I uncommented that and recompiled, but nothing different happened. (20 years ago, 10-Oct-04, to lugnet.robotics.rcx.legos)
 
  Respondre el missatge: LNPd problems
 
I also had a problem with lnpd and solved it. In my case was a problem with the configuration of the serial protocol, but the simptomes seemed like yours, thats I could receive from RCX but not send. I solved it modifiing the file rcxtty.c (or (...) (20 years ago, 8-Oct-04, to lugnet.robotics.rcx.legos)
 
  Re: LNPd problems
 
Can anybody help? If not I'll have to think of an alternative :s (20 years ago, 6-Oct-04, to lugnet.robotics.rcx.legos)
 
  Re: compiling problmes 2
 
(...) I had the same problem when going to newer binutils and gcc. Look at the patch brickos-gcc33.diff at (URL) first part of that patch changes the linker script slightly to avoid this error. (...) I think with the default linker-script the (...) (20 years ago, 7-Oct-04, to lugnet.robotics.rcx.legos)
 
  Re: compiling problmes 2
 
(...) Hello Jochen, hello everybody, thank you very much. Both of your hints helped a lot. As it were 271 linker-errors before your help, there are just 40 left now. Maybe someone can help me and tell me where the other references are defined and (...) (20 years ago, 7-Oct-04, to lugnet.robotics.rcx.legos)
 
  LNPd problems
 
I'm having problems with using LNP to transmit to the RCX. I wrote a test program both on the RCX and the PC. Whenever the PC program tries to transmit data, I get the following error: lnp_integrity_write(): Interrupted system call What does this (...) (20 years ago, 2-Oct-04, to lugnet.robotics.rcx.legos)
 
  Re: compiling problmes 2
 
Hi Rudolf, (...) No. Some _are_ defined in .h-files. And the register sets come via h8300.rcx to boot/brickOS.lds. Is it possible that your compiler chain treats leading underscores different. (...) That is _not_ your problem. Take care of the fact (...) (20 years ago, 28-Sep-04, to lugnet.robotics.rcx.legos)
 
  Re: compiling problmes 2
 
(...) Some of the functions are inline functions, that are *defined* in the header files, e.g.cputc_hex is defined in include/conio.h. With gcc you need to compile with optimization on, so that it will inline these functions correctly. Another (...) (20 years ago, 27-Sep-04, to lugnet.robotics.rcx.legos)
 
  Re: compiling problmes 2
 
Can't be that the unresolved references are from the code I want to add to BrickOS, because I also tried to compile just the BrickOS-files (without the code I want to add) and the same errors appeared. (...) I looked for some of those references and (...) (20 years ago, 27-Sep-04, to lugnet.robotics.rcx.legos)
 
  Test
 
I think my messages don't make it to the group... Test only... (20 years ago, 27-Sep-04, to lugnet.robotics.rcx.legos)
 
  Re: compiling problmes 2
 
(...) Could the unresolved referenced be from the code you are adding to brickOS? From the looks of it, some of the unresoveds are probably defined in a header file (all caps is a hint). Maybe they were implied in the GCC compiler, but I doubt it. (...) (20 years ago, 25-Sep-04, to lugnet.robotics.rcx.legos)
 
  source install brickos - stdio.h: No such file or directory
 
I try to install the source of brickos on debian (kernel 2.6.8) like this : ganymedes:~# apt-get -b source brickos When I do this I receive the following error. I checked if I met all the dependencies and there were no problems. make[1]: Entering (...) (20 years ago, 24-Sep-04, to lugnet.robotics.rcx.legos)
 
  howto apply usb patch to brickos
 
Hi, thanks to some responses from this forum I now know that I need to patch brickos in order to function with the usb ir tower. The problem is...I have no idea how to apply this patch. I already downloaded the patch from sourceforge.net: (...) (20 years ago, 23-Sep-04, to lugnet.robotics.rcx.legos)
 
  compiling problmes 2
 
Hi everybody, as I mentioned in my first question I am trying to use BrickOS. But I am not using the Bricx Command Center or something special for the LEGO RCX to compile it, I am using the HEW (Renases tool for the H8/300L microcontroller which is (...) (20 years ago, 23-Sep-04, to lugnet.robotics.rcx.legos)
 
  Re: compiling problems
 
(...) Rudolf, I'm not the one to answer your question, but I can tell you this: You need to provide the list of unresolved references before anyone can help you. Unresolved references are typically because not all files are identified in the (...) (20 years ago, 23-Sep-04, to lugnet.robotics.rcx.legos)
 
  compiling problems
 
Hello everybody, I downloaded the source files of BrickOS and tried to build them. During the compiling process there are no errors, but during the linking process over 270 errors are appearing. All errors are "undefined reference" errors, which (...) (20 years ago, 22-Sep-04, to lugnet.robotics.rcx.legos)
 
  firmdl3 usb error linux
 
Hi, I'm running brickOS(0.2.6.10.6-1) on my debian (kernel2.6.8) using the /lib/modules/2.6.8-3...sbtower.ko driver for the usbtower(robotics inventions 2.0 - RCX2.0). Adding this driver gave me the following kernel message: Sep 22 18:51:46 (...) (20 years ago, 22-Sep-04, to lugnet.robotics.rcx.legos)
 
  Re: Remote Message Buttons
 
(reviving an old thread...) (...) I have exactly the same problem. I receive every keys except the three message keys (see sample code below - the final target will be to use the remote to control several motors on several RCX). Any idea ? Thanks in (...) (20 years ago, 1-Sep-04, to lugnet.robotics.rcx.legos)
 
  Re: OS X Complier problems solved--now struggling with BrickOS
 
(...) I got brickos working on a windows box (no joy with either gentoo linux on a PC or winXP on Virtual PC for my Mac). I transfered the compiled demos to the windows box and tried to download them to the RCX. All it did was lock up the RCX (I had (...) (20 years ago, 23-Aug-04, to lugnet.robotics.rcx.legos)
 
  BrickOS improvements
 
Hello, I have created some patches to improve brickOS and set up a web page: (URL) the link above doesn't work try the long version: (URL) patches are against latest CVS version. I see no reason, why the first two patches should not be applied: The (...) (20 years ago, 17-Aug-04, to lugnet.robotics.rcx.legos)
 
  program_run
 
Does the program_run function still work in BrickOS? static void program_run(unsigned nr) I've been trying to get it to work, but it doesn't seem to do anything. If anyone has used this lately, I'd love to see what you did. Thanks Steve (20 years ago, 11-Aug-04, to lugnet.robotics.rcx.legos)
 
  Re: OS X Complier problems solved--now struggling with BrickOS
 
(...) How did you do this? Since I can't get firmdl3 to download it, I wanted to try this, but had no success (renamed it as brickOS.rcx--but that's probably not right). (...) OK, I've got a cross compiler that SEEMS to work with both C and C++. At (...) (20 years ago, 11-Aug-04, to lugnet.robotics.rcx.legos)
 
  LNP Woes (RCX-to-RCX)
 
So, I'm trying to get LNP working for RCX, and I haven't exactly been able to get it to work. More precisely, thanks to the smaple code here: (URL) gotten it to SEND messages just fine (or so I assume, since when I run the sending program, the (...) (20 years ago, 11-Aug-04, to lugnet.robotics.rcx.legos)
 
  Re: How to turn LEDs on/off ?
 
(...) I was not referring to the IR LED. I was referring to LEDs that can be connected to one of the motor ports. I believe Ross' initial response gave me the information I need. Thanks for everyone's help. -Brian (20 years ago, 10-Aug-04, to lugnet.robotics.rcx.legos)
 
  Re: How to turn LEDs on/off ?
 
(...) Well could you please be a little helpful and describe how you turn that LED on and off? I'm not familiar with communications from the RCX and there's no info on Dave's command reference, and I figured it was highly unlikely that's the LED (...) (20 years ago, 10-Aug-04, to lugnet.robotics.rcx.legos)
 
  Re: How to turn LEDs on/off ?
 
(...) Sure it does. They emit infrared light -- they're part of its IR communication system. (20 years ago, 10-Aug-04, to lugnet.robotics.rcx.legos)
 
  Re: How to turn LEDs on/off ?
 
(...) What LED are you talking about? The RCX has no LED build in. If you mean the LCD display, you can use the cputc_native_*() functions described here: (URL) you mean a LED connected to a motor output, just use the motor_* functions described (...) (20 years ago, 9-Aug-04, to lugnet.robotics.rcx.legos)
 
  How to turn LEDs on/off ?
 
What is the command to turn an LED on or off ? I've looked through the kernel files and I don't see anything that seems to do this. (20 years ago, 9-Aug-04, to lugnet.robotics.rcx.legos)
 
  Re: OS X Complier problems solved--now struggling with BrickOS
 
(...) Periodically I pick up this project again, get frustrated and give up. Then a few more months pass and I pick it up again... I seemed to have more success with the cross compiler this time around. BrickOS gave me a little trouble (strange (...) (20 years ago, 8-Aug-04, to lugnet.robotics.rcx.legos)
 
  Re: Multi-RCX Communication
 
(...) legOS allows this with a networking protocol. leJOS allows this if you're willing to work with Jini. Both of these require replacing the firmware with either C or Java. You can build your own networking protocol in any language, really. (...) (20 years ago, 5-Aug-04, to lugnet.robotics.rcx.legos, FTX)
 
  Multi-RCX Communication
 
I see a lot being done with communication between 2 RCX units. I was wondering if anybody had done anything with RCX communication with more than just 2 RCX. (20 years ago, 4-Aug-04, to lugnet.robotics.rcx.legos)
 
  Re: OS X Complier problems solved--now struggling with BrickOS
 
(...) I have reached the same stage as Rich had about a year ago: demos behave exactly as above. I couldn't find any further follow-up of this thread - I would appreciate any hints where should I look for ideas. I use cross-compiler and (...) (20 years ago, 3-Aug-04, to lugnet.robotics.rcx.legos)
 
  Re: Updated BrickOS Command Reference
 
(...) Dave, This is good to see. You may have done this intentionally, but 'sleep' and 'msleep' are both listed twice. Also, under cputs and cputw, it says '(only forst 5 characters)' and should be '...first 5..' I've never been able to get the (...) (20 years ago, 2-Aug-04, to lugnet.robotics.rcx.legos)
 
  Updated BrickOS Command Reference
 
Hello, Cleaned up the LegOS 0.2.4 Command Reference that I'd written like almost 4 years ago (has it been that long?!!) at the BrickOS site so that it is now current with BrickOS 0.2.6.10. Find it here: (URL) let me know if there are any errors, (...) (20 years ago, 31-Jul-04, to lugnet.robotics.rcx.legos)
 
  Full IR packet networking
 
When I was looking over version 0.2.0, I saw that one of the features was Full IR packet networking. My question is what exactly does Full IR packet networking do. Does this capability allow individual RCX to be networked, meaning they can (...) (20 years ago, 30-Jul-04, to lugnet.robotics.rcx.legos)
 
  Re: Kernel size
 
Hi Andreas, (...) It is about 22cm x 12cm for the two dimensional kernel. (couldn't resist) Actually, the size of the kernel is sort of unknown until you built it. It depends on your preferences and to some degree of the compiler version you build (...) (20 years ago, 29-Jul-04, to lugnet.robotics.rcx.legos)
 
  Kernel size
 
Hi, I've got a really small question. What's the size of the LegOS Kernel which you have to load on the RCX? Andreas (20 years ago, 29-Jul-04, to lugnet.robotics.rcx.legos)
 
  Re: Problem
 
Trent, Make sure the following files exist in the paths listed below (within the main BrickOS folder): boot\brickos.srec util\firmdl3.exe If those do not exist, then you need to run the configuration routine and MAKE to build the firmdl3 application (...) (20 years ago, 26-Jul-04, to lugnet.robotics.rcx.legos)
 
  Re: Problem
 
(...) You'd be up and running already without a hitch if you used my pre-built installers for cygwin & brickOS. Downloading the firmware using BricxCC is very simple as well. (URL) Hansen (20 years ago, 26-Jul-04, to lugnet.robotics.rcx.legos)


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