 | | Re: where to buy individual parts?
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(...) Beware! A normal serial cable, with the attachment screws on each side of the D-shell, doesn't fit down the recess on the back of the tower (or at least, mine doesn't). regards, Ian SMith (23 years ago, 29-Nov-01, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Re: where to buy individual parts?
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(...) right. (...) Look here: (URL) lucky, three of them and they even got email (compare that to France where the only Dacta dealer hides behind a fax). (...) Generally yes, though with rotation sensor you might be out of luck. (...) There's (...) (23 years ago, 30-Nov-01, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Re: where to buy individual parts?
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One more thing, this is why I am going to move to USA from Japan because I can buy LEGO in cheapest price and fast way, then I can have a big place to test my RCX Controlled LEGO Train Projects, some of them need over 5m x 5m, I have no way to debug (...) (23 years ago, 30-Nov-01, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Re: where to buy individual parts?
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If you want to buy something out of USA in (URL) to find a friend in USA and ask she/he repack and send items to you, I did like this. Most of sellers in (URL) can send items to any countries, I did many times. For (URL) discussion with seller, (...) (23 years ago, 30-Nov-01, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Re: where to buy individual parts?
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In lugnet.robotics.rcx, Zhengrong Zang writes: There are some problems though... (...) Tends to only offer a very limited range of products (in the UK at least) - trying to get hold of some parts from there, like rotation sensors, seems to be (...) (23 years ago, 30-Nov-01, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Re: where to buy individual parts?
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Hi, Try (URL) / (URL) luck! Zhengrong (...) (23 years ago, 30-Nov-01, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Re: Can I use LegOS with CyberMaster?
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(...) That is not possible, the Cybermaster has the firmware in ROM and very little (a few hundred bytes) RAM. (...) It doesn't. (...) The only one is NQC. Jürgen (23 years ago, 29-Nov-01, to lugnet.robotics.rcx.legos)
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| | Can I use LegOS with CyberMaster?
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I have CyberMaster and want to program my unit in C++. I use Linux platform. How does the command for Mindstorm work on CyberMaster? Is it other program that I can use? rik (23 years ago, 29-Nov-01, to lugnet.robotics.rcx.legos)
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| | legOS on Mac OS X
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Has anyone successfully installed legOS on Mac OS X? The OS has a FreeBSD UNIX-based layer, called Darwin, so I've heard that it shouldn't be too hard. Only, I'm finding that it is... My UNIX experience isn't vast, so I feel like I've tried (...) (23 years ago, 28-Nov-01, to lugnet.robotics.rcx.legos)
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| | Compiling or linking problem
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I am having a problem compiling any program. I'll use helloworld.c that comes with legos as an example. This is the output of my terminal: $ make helloworld.lx /usr/bin/h830-hitachi-hms-ld -T ../boot/legOS.lds -relax -L/usr/lib/legOS/lib (...) (23 years ago, 29-Nov-01, to lugnet.robotics.rcx.legos)
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| | Re: floating point operation
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(...) I suspect that when you look at the assembler code produced by the compiler you will find in the first instance it was able to optimize the FP multiply out of the inner loop since it didn't depend on the loop induction variable. Ie, it simply (...) (23 years ago, 28-Nov-01, to lugnet.robotics.rcx.legos)
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| | Re: floating point operation
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(...) I should clarify that this is true for the first version only. For some reason, the compiler does not optimize the second version in the same way. Anyways, what I see in the disassembly for the first version is a loop to 100 inside a loop to (...) (23 years ago, 28-Nov-01, to lugnet.robotics.rcx.legos)
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| | Re: floating point operation
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(...) Compiler optimization? At least, a disassembly of similar code showed me that that seemed to be the case. The compiler can see that t is not used. Try returning t, or copying t to a global before you return from main. That will make things (...) (23 years ago, 28-Nov-01, to lugnet.robotics.rcx.legos)
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| | floating point operation
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I did some experiments with floating point operations and I was surprised when I tried this: int main(){ long t1; int i,j; float t; t1 = sys_time; for(j=0; j<1000; j++){ t=0.06; for(i=0; i<100; i++){ t=1.7*t; } } lcd_int((sys_time - t1)/1000); (...) (23 years ago, 28-Nov-01, to lugnet.robotics.rcx.legos)
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| | where to buy individual parts?
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Hi, My school currently has a robotics course that uses the RIS kits and LegOS. We're trying to expand the size of our class, and consequently need additional parts (and replacements for missing/broken parts) I've looked around on the lego homepage (...) (23 years ago, 28-Nov-01, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Re: Problems with the USB tower
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Hi!Hary,I am sorry I replied to your mail from outside the lugnet list.Please reply to the list and I will make sure that I don't mess up. Regards, Rajendra (...) (23 years ago, 27-Nov-01, to lugnet.robotics.rcx.legos)
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| | Re: Problems with the USB tower
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Where'd you the get the patch for LegOS that can use the USB tower? - Hary (...) (23 years ago, 24-Nov-01, to lugnet.robotics.rcx.legos)
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| | Sound driver and implementation
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I found the sound driver and implementation in old version (0.2.0 below) is different from current version, I am not famlair about music and sound generating concept, does anyone give me some explanation? Thanks a lot! Zhengrong (23 years ago, 20-Nov-01, to lugnet.robotics.rcx.legos)
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| | Re: Problems with the USB tower
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(...) Yes. (...) Currently there isn't, see my posting (URL) Jürgen Stuber <stuber@loria.fr> (URL) (23 years ago, 18-Nov-01, to lugnet.robotics.rcx.legos)
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| | Problems with the USB tower
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Hi!Everyone, I was trying to download the kernel to the RCX but the errors I get are something like this: -When I do ./firmdl3 ../legOS.srec I get the message: ./firmdl3:tower not responding. -When I do ./firmdl3 --tty=usb ../legOS.srec I get: (...) (23 years ago, 17-Nov-01, to lugnet.robotics.rcx.legos)
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