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 Robotics / RCX / *7770 (-20)
  Missing .lx files
 
I have no .lx files in ../brickos-0.2.6.10/demo ! What I have done: 1. Looked for .lx in "demo": [ville@ville demo]$ ls c++/ c++.cpp helloworld.c helloworld.o linetrack.c Makefile robots.c rover.c rover.o sound.c trailerbot.c [ville@ville demo]$ 2. (...) (21 years ago, 27-Jul-03, to lugnet.robotics.rcx.legos)
 
  Re: light sensor question
 
"Jona" <jona@24tooth.com> wrote in message news:HIM3z8.t92@lugnet.com... (...) react and it (...) LEDs. (...) the light (...) something (...) sensor itself? I suspect that the spectral composition of the lights are quite different. As to what the (...) (21 years ago, 26-Jul-03, to lugnet.robotics.rcx)
 
  Re: light sensor question
 
(...) Here is another question...does incandescent light differ from the light given off by LEDs in terms of how the light sensor sees it? I am experimenting with some LEDs trying to get the light sensor to react and it seems to only see the light (...) (21 years ago, 26-Jul-03, to lugnet.robotics.rcx)
 
  Re: light sensor question
 
(...) According to Kekoa Proudfoot's RCX Internals webpage ((URL) if (raw < 187) // bug? this allows percent=101, should be raw < 189 sensor->value = 64 else sensor->value = (3ff - raw) * 19 / 9c Numbers are in hexadecimal (base 16). Jürgen (21 years ago, 24-Jul-03, to lugnet.robotics.rcx)
 
  Re: light sensor question
 
(...) The Analog to Digital converter of the h8/300 (the brains of the lego mindstorms) is 10 bits, so it has a range of 0-1023. I'm not sure how it converts that to the 0-100, it may do it by just dividing by 10 and rounding. If you want to see (...) (21 years ago, 24-Jul-03, to lugnet.robotics.rcx)
 
  Re: light sensor question
 
(...) What I'm looking for is really the latter of the topics. It seems to me that it must have some sort of units, because I've never seen it hit zero even with alterations (as Ralph Hempel has described on his site). It seems like it should be (...) (21 years ago, 23-Jul-03, to lugnet.robotics.rcx)
 
  Re: light sensor question
 
(...) Is this what your looking for? (URL) terms of what units it mesures it in I don't think it really has any. it is just a relative reading from 0-100. (21 years ago, 23-Jul-03, to lugnet.robotics.rcx)
 
  light sensor question
 
I am writing a research paper about work I have done with Mindstorms this summer. One thing that I used a lot was the light sensor, but I am having a hard time finding what exactly the sensor measures. I was wondering if anyone could give me any (...) (21 years ago, 23-Jul-03, to lugnet.robotics.rcx)
 
  dll problem added
 
I forgot to mention that i am working under Linux Red-Hat 7.3. (21 years ago, 23-Jul-03, to lugnet.robotics.rcx.legos)
 
  dll problem
 
Hi i am currently working on legOS and i installed brickOS-2.6.10 successfully and downloaded the kernel to the RCX without problems. However when i tried to download the helloworld program with dll an error occured "error deleting program". I used (...) (21 years ago, 23-Jul-03, to lugnet.robotics.rcx.legos)
 
  Re: memcpy.c missing terminating " character
 
I had some problems sending the original messages before I went to vacation for 10 days... When I came home, I fixed the problem and did send: memcpy.c missing terminating " character BTW, I would like to write programs in C++. Greetings from (...) (21 years ago, 22-Jul-03, to lugnet.robotics.rcx.legos)
 
  memcpy.c missing terminating " character
 
Hello! First: Im pretty new into Linux/unix as a sysadmin! I have installed gcc as a cross gcc (h8300): Here is what happens when I "make" the BrickOS-0.2.6.10: ###...### [root@ville lego]# tar zxvf brickos-0.2.6.10.tar.gz brickos-0.2.6.10/ (...) (21 years ago, 22-Jul-03, to lugnet.robotics.rcx.legos)
 
  Re: Problems with USB Tower
 
look at the patch here: (...) (21 years ago, 21-Jul-03, to lugnet.robotics.rcx.legos)
 
  Re: Please Help?! Problems with installing LegOS on WinXP
 
You might try following my instructions: (URL) recommend using the pre-built hitachi tools which you can download via the link in the document referenced above. Let me know if you have any questions. John Hansen (URL) (21 years ago, 19-Jul-03, to lugnet.robotics.rcx.legos)
 
  Re: Please Help?! Problems with installing LegOS on WinXP
 
(...) Tyler, You can check to see what Cygwin packages have been installed on your system by using the cygcheck command at the cygwin command prompt. Try cygcheck -c If the output is too large for your dos window you can export it to a file by using (...) (21 years ago, 19-Jul-03, to lugnet.robotics.rcx.legos)
 
  Re: Please Help?! Problems with installing LegOS on WinXP
 
(...) If you haven't installed 'make', there is *no way* you successfully built the compiler. If you go back to the URL you quoted, you will see make is listed as one of the required Cygwin packages to install. Re-run Cygwin setup.exe, install make, (...) (21 years ago, 19-Jul-03, to lugnet.robotics.rcx.legos)
 
  Re: Please Help?! Problems with installing LegOS on WinXP
 
(...) Hi Ed, Thanks for replying. In (URL) Hitachi H8 cross-compiler was built in: c:\cygwin\build I'm assuming that's where it is. Also, what is the "make" command? Bash in cygwin cant seem to find it. Thanks Tyler. (21 years ago, 19-Jul-03, to lugnet.robotics.rcx.legos)
 
  Re: Please Help?! Problems with installing LegOS on WinXP
 
(...) [SNIP] (...) Tyler, Where is compiler executable located on your system? Ed (21 years ago, 19-Jul-03, to lugnet.robotics.rcx.legos)
 
  Please Help?! Problems with installing LegOS on WinXP
 
Hi, Can anyone please, please help me with the installation of LegOS on my WinXP laptop? I have followed the instructions in "brickOS 0.2.6.10 Instructions for installing in WinXP" at (URL) to the letter but I still can't seem to get LegOS to run. (...) (21 years ago, 19-Jul-03, to lugnet.robotics.rcx.legos)
 
  Problems with USB Tower
 
Hi there, I got a problem running my USB-Tower on Linux. I installed the LegoUSB-driver and it seems to work (i see it in /var/log/messages when i plug it in). But when i run firmdl3 i get the following message: /dev/usb/lego0: not a tty I tried it (...) (21 years ago, 19-Jul-03, to lugnet.robotics.rcx.legos)


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