 | | 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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| |
| | Re: How do I use WinLNP?
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Tom, I'm struggling with WinLNP too. Tried to compile the LegoStudio prog in VC++6, but keeps hanging up. Don't think my old laptop is up to VC++6, or maybe I need the patch that is mentioned in other messages. In the meantime I have been using the (...) (23 years ago, 16-Nov-01, to lugnet.robotics.rcx.legos)
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| |
| | How do I use WinLNP?
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Hi, Is there any instructions on WinLNP out there besides the ones on the homepage. I am kind of confused by them. Also, can anyone direct me to RCX talker? I have heard it mentioned a few times and it sounds like it is all I need, however I cannot (...) (23 years ago, 15-Nov-01, to lugnet.robotics.rcx.legos)
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| |
| | compile multiple source files
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|
Hello i see this post: (URL) to compile multiple source files, but i don't understand the changes to take to do, i see two parts: Makefile Fragment and Makefile.user patch, but My "Makefile.user" look a little bit diferent. I'm running legOS-0.2.4 (...) (23 years ago, 15-Nov-01, to lugnet.robotics.rcx.legos)
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| |
| | Re: Still having problems with helloworld.c
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|
Thanks John! I will see if that works.I had almost given up and Mike was helping me set up the whole thing again alongwith the USB patch. Regards, Rajendra (...) (23 years ago, 15-Nov-01, to lugnet.robotics.rcx.legos)
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| |
| | Re: Still having problems with helloworld.c
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|
Hi, I had the same problem you did and traced it back to a faulty line in loader.c (which contains makelx's main()). In revision 1.3 and earlier of that file you can find the following toward the end of the file: if(argc-optind<3 || lx.text_size==0) (...) (23 years ago, 15-Nov-01, to lugnet.robotics.rcx.legos)
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| |
| | Battery eliminator?
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Hi, I was looking at a webpage about a battery eliminator for a 1.5 rcx. It had a transformer and a voltage regulator and some dowel lengths to fit into the battery compartment. Can someone give me the webpage(or something similar) for this, I can't (...) (23 years ago, 14-Nov-01, to lugnet.robotics.rcx.legos)
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| |
| | Still having problems with helloworld.c
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|
Hi! I tried changing the path for KERNEL in makefile from Demos directory and giving the path for legOS there.Now I get a different message when I do 'make'.It says 'No rule to make target'?!Now is there any way I could solve this.If I download the (...) (23 years ago, 8-Nov-01, to lugnet.robotics.rcx.legos)
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| |
| | Re: LegOS USB Support (for RCX 2.0)
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I would love a copy of your USB source! So far I haven't had any luck communicating with the USB tower using my own code, so any help you can give me would be greatly appreciated. Do you have it posted somewhere or would you prefer to email it to me (...) (23 years ago, 7-Nov-01, to lugnet.robotics.rcx.legos)
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| |
| | Re: How do I find my kernel size?
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|
(...) As you might have thought: No it is not. Full name: Motorola S-Record Format The S-record standard is as follows: S<type><length><addr...<checksum> S4<length><address><...<checksum> Where: type is the record type. Where: 0 starting record (...) (23 years ago, 7-Nov-01, to lugnet.robotics.rcx.legos)
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| |
| | Re: How do I find my kernel size?
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|
You can comment CONF_LNP, this can save many memory. Zhengrong (...) (23 years ago, 7-Nov-01, to lugnet.robotics.rcx.legos)
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| |
| | Re: How do I find my kernel size?
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|
You have to comment CONF_PROGRAM if you commented CONF_TM, but I am not sure if you still can download your program without CONF_PROGRAM. I don't think you can comment CONF_TM. Zhengrong ---...--- (...) (23 years ago, 7-Nov-01, to lugnet.robotics.rcx.legos)
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| |
| | How do I find my kernel size?
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|
Hi, Is the kernel size simply the size of the legos.srec file? I thought so initially, however my legos.srec file is 18800(or close to) and im pretty sure ive allocated more than than 19k using dynamic memory. Obviously this is more than 32k in (...) (23 years ago, 7-Nov-01, to lugnet.robotics.rcx.legos)
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| |
| | Re: About LNP_HOSTADDR & LNP_HOSTMASK
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|
The only concern that I would have with this kind of an implementation is that if you plan on changing your brick's LNP address, you have to remember what address it used to be while you're downloading a program. It's not a huge deal, but it's an (...) (23 years ago, 6-Nov-01, to lugnet.robotics.rcx.legos)
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| |
| | Re: About LNP_HOSTADDR & LNP_HOSTMASK
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|
Well, I will try to make a patch for this modification. Zhengrong (...) (23 years ago, 6-Nov-01, to lugnet.robotics.rcx.legos)
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| |
| | Re: About LNP_HOSTADDR & LNP_HOSTMASK
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|
looks fine to me. not a bad idea! -albert "Zhengrong Zang" <mikezang@iname.com> wrote in message news:GMBBt6.C4J@lugnet.com... (...) (23 years ago, 6-Nov-01, to lugnet.robotics.rcx.legos)
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| |
| | Re: corect me please
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|
I think you actually want dll -r10 the -r flag specifies which RCX to download the specified program to. you need the 10 because it is read in as a hex address. When you use (...) basically, whatever you set the HOSTADDR to, needs to match what you (...) (23 years ago, 6-Nov-01, to lugnet.robotics.rcx.legos)
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| | Re: Unable to compile helloworld.c
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|
Addendum: It seems bad to put legOS under /usr/lib. Please get a fresh legOS.tar.z from legOS.sourceforge.net and install it in your user home directory. (for me, that means in /home/obi. So legOS home is /home/obi/legOS at my linux system) You will (...) (23 years ago, 5-Nov-01, to lugnet.robotics.rcx.legos)
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| | Re: Unable to compile helloworld.c
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(...) <sigh> I'm not sure either. Actually no idea so far. It seams that makelx is called with wrong parameters. But why? Did you successfully made the demos in the demo dir? (...) That puzzles me, too. The compiler and the binutils come as a rpm (...) (23 years ago, 5-Nov-01, to lugnet.robotics.rcx.legos)
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| |
| | Re: Unable to compile helloworld.c
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|
Well!I looked in the makefile and couldn't see anything wrong with the path.As for having legOS under usr/lib, it was done at the time of installing the rpm and I hadn't specified any path.Now,I tried copying config.h and putting it in the 'include' (...) (23 years ago, 5-Nov-01, to lugnet.robotics.rcx.legos)
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| |
| | Re: Unable to compile helloworld.c
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|
(...) The error messages state that helloworld includes conio.h which tries in line 41 to include config.h. Helloworld includes unistd.h which includes time.h which tries in line 32 to include config.h. So, conio.h, unistd.h and time.h are found, (...) (23 years ago, 5-Nov-01, to lugnet.robotics.rcx.legos)
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| |
| | About LNP_HOSTADDR & LNP_HOSTMASK
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|
I found these MACROs are only used in lnp.c as below: kernel/lnp.c: lnp_buffer[3]=LNP_HOSTADDR | (srcport & LNP_PORTMASK); kernel/lnp.c: if(LNP_HOSTADDR == (dest & LNP_HOSTMASK)) {... You have to recompile legOS as this reason, if we can use two (...) (23 years ago, 5-Nov-01, to lugnet.robotics.rcx.legos)
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| |
| | Re: corect me please
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|
You need to use util/dll -r1 boot/brick1.lx or Try for help util/dll Zhengrong (...) (23 years ago, 5-Nov-01, to lugnet.robotics.rcx.legos)
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| | Re: Unable to compile helloworld.c
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|
Mike, I made the changes in the Makefile by removing rover.lx and others.I didn't have to change the path of KERNEL or other Makefile files as the Project directory is in legOS directory.This time when I tried make helloworld.lx, I get the following (...) (23 years ago, 5-Nov-01, to lugnet.robotics.rcx.legos)
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| | Re: Unable to compile helloworld.c
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|
Michael explained very detail, you can do as below if you don't want to do too complex: Make your Project directory inside ../legOS directory, copy Makefile from demo to Project directory, change PROGRAMS=helloworld.lx rover.lx linetrack.lx (...) (23 years ago, 5-Nov-01, to lugnet.robotics.rcx.legos)
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| | corect me please
|
|
Thanks Bill with your help the code Albert gave me compiles nicely! Now i (...) //This is what I tried in LegOS/boot/config.h: #define CONF_LNP_HOSTMASK 0xf0 #define CONF_LNP_HOSTADDR 0x10 //Then in a cygnus window I created a kernal make realclean (...) (23 years ago, 4-Nov-01, to lugnet.robotics.rcx.legos)
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| | Re: Unable to compile helloworld.c
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|
(...) Ok. Now lets look at your "projects" dir. You take helloworld.c from demo and put it into "projects". Then you also put the Makefile you find in the demo dir into "projects", so you have two files: helloworld.c and Makefile. You now must edit (...) (23 years ago, 4-Nov-01, to lugnet.robotics.rcx.legos)
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| |
| | Re: Unable to compile helloworld.c
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|
Ok let me explain the whole process that I did.I downloaded the .rpm files for legOS,binutils and egcs and installed them.After that according to the HowTo documentation I wanted to test the compiler by compiling a simple program.I looked into the (...) (23 years ago, 4-Nov-01, to lugnet.robotics.rcx.legos)
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| | Re: Unable to compile helloworld.c
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|
What do you mean Project directory? there is no this directory if I remember! Zhengrong (...) (23 years ago, 4-Nov-01, to lugnet.robotics.rcx.legos)
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| | Re: Unable to compile helloworld.c
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|
I compiled in the Project directory. -Rajendra (...) (23 years ago, 4-Nov-01, to lugnet.robotics.rcx.legos)
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| | Re: Unable to compile helloworld.c
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|
did you compile in demo directory? Zhengrong -------- (...) (23 years ago, 4-Nov-01, to lugnet.robotics.rcx.legos)
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| |
| | Unable to compile helloworld.c
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|
Hi! I was trying to compile the helloworld.c program by using "make helloworld.lx" but I get an error "make:*** No rule to make target 'helloworld.lx'.Stop." I had placed helloworld.c file alongwith Makefile.common in /usr/lib/legOS/Project (...) (23 years ago, 4-Nov-01, to lugnet.robotics.rcx.legos)
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| |
| | Re: legOS codeI need example code of rcx2rcx communication.
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|
(...) Chris, First, I think the code in the main function should be as follows: int main( int argc, char* argv[] ) { char buf[256]; int len; //notice the variable i is missing lnp_address_set_handler( 1, port_handler ); while(1) { len = (...) (23 years ago, 30-Oct-01, to lugnet.robotics.rcx.legos)
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| | Re: legOS codeI need example code of rcx2rcx communication.
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|
Albert, Thanks for responding to my post! I had trouble compileing the code maybe you could help or e-mail me the original.Thanks here is the error report: brick1.c: In function `read_from_ir': brick1.c:40: warning: passing arg 1 of `memcpy' di rget (...) (23 years ago, 29-Oct-01, to lugnet.robotics.rcx.legos)
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| |
| | Re: Couldn't download egcs files
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|
Quoting Rajendra Kumar Penugonda : (...) How can I get those files?Also I was able to download the binutils (...) "/usr/local/crossgcc...-hms/lib", depending the way you unpacked the archive. Remember that the tar command can not set the first '/' (...) (23 years ago, 28-Oct-01, to lugnet.robotics.rcx.legos)
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| |
| | Adjust Switch Time
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|
When you made a Motorized Switch Point, if you want to use RCX to control it, this switch time is important value, a suitable time is better to switch point. You can find my AdjustSwitch.c for legOS, that can help you to do this. (URL) (23 years ago, 28-Oct-01, to lugnet.robotics.rcx.legos, lugnet.trains)
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| | Couldn't download egcs files
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|
Hi! I tried to download the egcs files from the source site but was not able to do so.How can I get those files?Also I was able to download the binutils files.I did according to the Howto document but when I did "make install",I got the following (...) (23 years ago, 27-Oct-01, to lugnet.robotics.rcx.legos)
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| |
| | Re: LegOS USB Support (for RCX 2.0)
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|
Well, you can have the modified source files, if that's what you mean. But if you have the RS232 IR tower from 1.0 or 1.5, then you don't need the USB patch. - Hary (...) (23 years ago, 27-Oct-01, to lugnet.robotics.rcx.legos)
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| |
| | Re: Problems installing in Win98
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|
I am trying to setup legOS on a Windows ME machine following the directions posted by Max Bowsher. I am using Cygwin 1.3.3 which comes with gcc 2.95.3-5. Everything goes fine until I try to make the gcc cross compiler using the command 'make (...) (23 years ago, 26-Oct-01, to lugnet.robotics.rcx.legos)
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| |
| | Re: LegOS USB Support (for RCX 2.0)
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|
Can you make a patch file? Although I still don't have it. But I can add it my patch for remote and message when I got it. Zhengrong (...) (23 years ago, 26-Oct-01, to lugnet.robotics.rcx.legos)
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| |
| | LegOS USB Support (for RCX 2.0)
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|
I have added USB support to LegOS's firmdl, dll, and lnp under Windows. If anyone also has the USB IR tower (which LegOS's tools can't work with normally) instead of the RS232 tower, I can send out the modified source. - Hary (23 years ago, 26-Oct-01, to lugnet.robotics.rcx.legos)
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| |
| | Re: Crosscompiler??
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|
(...) For cygwin (Linux like environment fow Windows) go to (URL) newlib go to (URL) all the other GNU stuff go to (URL) (23 years ago, 25-Oct-01, to lugnet.robotics.rcx.legos)
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| |
| | Crosscompiler??
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|
Hi!Everyone, Can somebody help me get the crosscomplier and the related files -egcs,binutils and h8300-hitach-hms? Regards, Raj ___...___ Get your FREE download of MSN Explorer at (URL) (23 years ago, 24-Oct-01, to lugnet.robotics.rcx.legos)
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| |
| | Re: legOS codeI need example code of rcx2rcx communication.
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|
Hi Chris, I just started experimenting with brick-to-brick rcx communication. This is some code that I got working. It doesn't do a whole lot, but it demonstrates the basics of what you need to do. There are two bricks involved. Hostmask is 0xf0. (...) (23 years ago, 24-Oct-01, to lugnet.robotics.rcx.legos)
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| |
| | Remote Control Train with legOS
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|
I made a short legOS program to use remote control train in smooth speed, you can find it at my homepage. RCX Controlled LEGO Train Projects (URL) (23 years ago, 23-Oct-01, to lugnet.robotics.rcx.legos, lugnet.trains)
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| |
| | legOS codeI need example code of rcx2rcx communication.
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Hello, I want to use one RCX with 2 rotation sensors as a remote to control a second rcx. I own Extreme Mindstorms,have read the legOS howto,and checked the cvs at (URL) Any and all help would be appreciated. ldaiel2@prodigy.net (23 years ago, 20-Oct-01, to lugnet.robotics.rcx.legos)
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| |
| | lnpd for other OSes
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|
Hi all, Does anyone know of any lnpd ports to non-linux and non-windows operating systems? I'm trying to get lnpd to work for Solaris 7, and would rather use someone else's hacked up code than port lnpd myself =P Along similar lines, has anybody (...) (23 years ago, 16-Oct-01, to lugnet.robotics.rcx.legos)
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| |
| | New to legOS
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|
Hi!Friends, I am quite new to this field but I must say I am enjoying my time spent on this.I am having some problems having the legOS work.I am not finding the h8300-hitachi-hms to download.The one that I found and downloaded doesn't seem to work (...) (23 years ago, 13-Oct-01, to lugnet.robotics.rcx.legos)
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| |
| | Re: 1.0,1.5 or 2.0 ? what gives ?
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|
(...) Instead of using resistors, you can use RAW mode which measures how far in the sensor was pushed. Then use a bit of tape to prevent one of the sensors from being pushed in all the way. BTW, I am lucky enough to have a defective touch sensor (...) (23 years ago, 9-Oct-01, to lugnet.robotics.rcx.legos)
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| |
| | RE: power_off()
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|
(...) Mike, I ran into a similar problem when debugging pbForth years ago. Make sure that the stack pointer is saved somewhere in the on-chip memory of the RCX BEFORE putting the RCX to sleep. The sleep function puts the external RAM into a (...) (23 years ago, 8-Oct-01, to lugnet.robotics.rcx.legos)
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| |
| | power_off()
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|
Hi I have been trying to get the power_off() function to work, but every time I call it it either hangs the RCX just before turning off, or turns the RCX off and I can not turn it back on. In both cases I have to remove the batteries and wait for (...) (23 years ago, 8-Oct-01, to lugnet.robotics.rcx.legos)
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| |
| | remote control patch from Mike Zang
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|
I've tried to get Mike's patch to work. Used a fresh legOS installation, applied patch. Compiled fine. But if I try to dll helloworld.lx, dll dies with "cant delete program" error. The -v option reveals, that the rcx sends no ack to the dll delete (...) (23 years ago, 7-Oct-01, to lugnet.robotics.rcx.legos)
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| |
| | Re: what Operating systems are there for the RCX?
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|
Hi Kenenth, I suggest checking out (URL) for a *really* big list of development options for the RCX. Every RCX SDK I know of is listed there. -albert "kenneth johansen" <kennethj@stud.cs.uit.no> wrote in message news:3BBB3B27.4E75B9....uit.no... (...) (23 years ago, 7-Oct-01, to lugnet.robotics.rcx.legos)
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| |
| | Update to Business 2.0 Article (was: LegOS forced to use another name?)
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|
This update to the article discussed in this thread is taken from the November 2001 issue of Business 2.0. It isn't on (URL) so I thought I would run it through OCR and post it here for everyone to see. LUGNET gets a mention (but not a URL), and the (...) (23 years ago, 5-Oct-01, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx, lugnet.general, lugnet.mediawatch)
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| |
| | Re: what Operating systems are there for the RCX?
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|
Hi Kenneth, I can't add to your list, but have had some experience with Lejos which I recommend highly. You can find more about it at (URL) latest version, (1.03 beta) which you can download from that site, has more features and smaller footprint (...) (23 years ago, 4-Oct-01, to lugnet.robotics.rcx.legos)
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| |
| | what Operating systems are there for the RCX?
|
|
hi all, i realise this is not strictly legOS related, but you guys are the best source i have so i thought id give it a shot anyways. Im trying to list all the options i have for changing the original "OS" and firmware. so far i have: NQC (doesnt (...) (23 years ago, 3-Oct-01, to lugnet.robotics.rcx.legos)
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| |
| | Re: legOS-0.2.3-tar.gz problems/incomplete?
|
|
I posted too soon. Just located the other web site (URL) Scott" <mikesc@nospam.telus.net> wrote in message news:GKFwCM.EuH@lugnet.com... (...) due (...) gcc (...) (23 years ago, 29-Sep-01, to lugnet.robotics.rcx.legos)
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| |
| | legOS-0.2.3-tar.gz problems/incomplete?
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|
I am new to legOS but a seasoned win32/java developer. I have been having problems making anything in legOS/util or legOS/util/dll-src directories. There does not seem to be a make rule for firmdls and the source loader.c, rcxtty.c and rcxtty.h will (...) (23 years ago, 29-Sep-01, to lugnet.robotics.rcx.legos)
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| |
| | Re: 1.0,1.5 or 2.0 ? what gives ?
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|
Using a multiplexor from (URL) you can hook four touch sensors up to one port. The multiplexor (URL) you to determine if any of three sensors is pressed, when you hook up a forth it masks the other three and but if you assume that only one side at a (...) (23 years ago, 28-Sep-01, to lugnet.robotics.rcx.legos)
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| |
| | Re: 1.0,1.5 or 2.0 ? what gives ?
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|
(...) To put it bluntly, the only user visible is in the numbers on the outside. (...) Put more than one on an input and figure out which one was pressed by the direction you were heading. If they can be pressed simultaneously you need resistors to (...) (23 years ago, 28-Sep-01, to lugnet.robotics.rcx.legos)
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| |
| | 1.0,1.5 or 2.0 ? what gives ?
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|
hi, is this list still working ? last time i tried to post i got an error 0 ? whatever that means. anyways. if it works, then i have the following question! what does RCX 2.0 bring us that 1.0 and 1.5 doesnt already have ? i have looked at the (...) (23 years ago, 28-Sep-01, to lugnet.robotics.rcx.legos)
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| |
| | Do many people want EmuLegOS Windows LNP support
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|
I received an e-mail this morning regarding Windows LNP support under EmuLegOS. Currently this is non-existent. I wanted to see if there are many people out there using the Windows version of EmuLegOS, and if they would find LNP support usefull. If (...) (23 years ago, 24-Sep-01, to lugnet.robotics.rcx.legos)
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| |
| | Re: Does lejOS has the same functions as legOS?
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|
(...) No, for example LNP and speedometer are missing, motor control is standard with 8 power levels. In general it uses the standard ROM routines much more than legos. On the good side the rotation sensor problems it had until two months ago are (...) (23 years ago, 19-Sep-01, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx.java)
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| | Does lejOS has the same functions as legOS?
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I ma using legOS and NQC, I also viewed lejOS, but I am not sure if lejOS can provide all functions of legOS provides, then does lejOS run in the same speed as legOS? Zhengrong (23 years ago, 18-Sep-01, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx.java)
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| | tower not responding
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I have spent the last couple of days compiling and setting up legOS on my 486SX/33 laptop. I am using legOS 0.2.5 which I got from Sourceforge, and binutils 2.11 (i think) and gcc 2.95.3, which I got from the official GNU site. Compiling 2.95.3 took (...) (23 years ago, 17-Sep-01, to lugnet.robotics.rcx.legos)
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| | Re: New patch for remote and message
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I uploaded this patch at (URL) can use functions as below: unsigned int get_rkey(); // wait for any remote key wait_event(rkey_pressed, rkey); // wait for any remote key pressed wait_event(rkey_released, rkey); // wait for any remote key released (...) (23 years ago, 13-Sep-01, to lugnet.robotics.rcx.legos)
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| | Re: LegOS forced to use another name?
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Hello everybody, there has been a lot of discussion about the Business 2.0 article in their forums, on Slashdot and here at LUGNET. I followed all of them closely until Tuesday afternoon, but rather less so in the days since. I also received several (...) (23 years ago, 13-Sep-01, to lugnet.robotics.rcx.legos)
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| | trig-functions through CORDIC
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If there are amateurs interested in using trig-functions under legOS have a look at the following page: (URL) algorithms used are called CORDIC. You'll find all the information and explanation on our site. What is especially interesting is the fact (...) (23 years ago, 13-Sep-01, to lugnet.robotics.rcx.legos)
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| | Re: LegOS forced to use another name?
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(...) Dennis, I do agree that Lego has been very nice about this; in my first post, I stated that their stance on these matters was one of the things that rekindled my Lego addiction. I admired their action (or lack thereof) as far as Mindstorms was (...) (23 years ago, 12-Sep-01, to lugnet.robotics.rcx.legos, lugnet.general, lugnet.mediawatch)
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| | Re: RCX_COMPILER define
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(...) references to (...) the CygWin (...) the legOS (...) absence (...) What RCX_COMPILER does is to add an optimization inside GCC for ISR on RCX platform. GCC without RCX_COMPILER patch should compile without problems any project. You should only (...) (23 years ago, 11-Sep-01, to lugnet.robotics.rcx.legos)
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| | Re: LegOS forced to use another name?
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(...) OK, lets not make a mountain out of a molehill here. LEGO very clearly and often stated in that letter that they encourage the creation and use of our third party OS's and such. What they (rightly) wish to protect is the dillution of their (...) (23 years ago, 11-Sep-01, to lugnet.robotics.rcx.legos, lugnet.general, lugnet.mediawatch)
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| | Re: LEGO Company position on third-party programs for LEGO MINDSTORMS
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(...) [snipped Clarification from the LEGO(R) MINDSTORMStm team] Thanks for the clarification, Tomas. (...) I'd also suggest visiting legos.sourceforge.net, and sending the letter to the maintainers of that site (if you haven't already), as although (...) (23 years ago, 11-Sep-01, to lugnet.lego.direct, lugnet.robotics.rcx.legos)
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| | Re: LegOS forced to use another name?
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FYI, there is now a posting in lugnet.lego.announce that should help to clarify this issue: (URL) set to FUT lugnet.lego.direct because of some rules (that I still don't quite get) about where official messages can be posted and followed-up to, but (...) (23 years ago, 10-Sep-01, to lugnet.robotics.rcx.legos, lugnet.general, lugnet.mediawatch, lugnet.robotics)
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| | Re: LegOS forced to use another name?
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Ok, I agree with the *possibility* of the name being a problem, but I am more concerned about the hacks themselves being contested instead. However, LegOS is NOT for commercial purposes, so that should be a factor to consider here. I wouldn't be AS (...) (23 years ago, 10-Sep-01, to lugnet.robotics.rcx.legos, lugnet.general, lugnet.mediawatch)
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| | Re: LegOS forced to use another name?
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(...) In the US, at least, a trademark *must* be defended, or the company loses it. If legOS does, in fact, infringe on their trademark, they would have had to defend it pretty quickly or that usage would pass into the public domain. Or something (...) (23 years ago, 10-Sep-01, to lugnet.robotics.rcx.legos)
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| | Re: LegOS forced to use another name?
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(...) I concur. If I manufactured a new extra-cushiony disk storage system that used *really* tiny sponges for support, and I called it Micro-Soft, I'm sure I'd get a letter. This particular case has the added spin of stepping soundly into the "LEGO (...) (23 years ago, 10-Sep-01, to lugnet.robotics.rcx.legos, lugnet.general, lugnet.mediawatch)
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| | Re: LegOS forced to use another name?
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(...) So, if they had sued him 2.5 years ago, you would have supported them? Just wondering. It's because of thinking like this that most companies would have sued him long ago... Troy PS: I thought it was just common sense, atleast around here, (...) (23 years ago, 10-Sep-01, to lugnet.robotics.rcx.legos)
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| | Re: LegOS forced to use another name?
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The way I read the article it didn't seem that they were so much upset that he had come up with the new OS, but rather that he had named it legOS. No matter how you look at it, or what excuse he can come up for choosing that name, it is pushing the (...) (23 years ago, 10-Sep-01, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx, lugnet.general, lugnet.mediawatch)
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| | Re: LegOS forced to use another name?
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(...) I agree with you, Jürgen. It seems that we have to contend with taht viewpoint though. Hopefully if any of tyhe new product line doesn't do as well as expected, we will not see some genius in the company decide to go after people who add value (...) (23 years ago, 10-Sep-01, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx, lugnet.general, lugnet.mediawatch)
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| | Re: LegOS forced to use another name?
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(...) I think this is speculation by the author of the article. Apart from the issue about names and trademarks, for me this article shows an extremely irritating attitude towards customers, sue people as soon as they use something in a different (...) (23 years ago, 10-Sep-01, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx, lugnet.general, lugnet.mediawatch)
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| | Re: Instructions for LegOS USB support
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(...) As for lejos, we are waiting to get our hands on a USB tower. Jürgen (23 years ago, 10-Sep-01, to lugnet.robotics.rcx.legos, lugnet.robotics)
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| | Re: RCX 3.0 and legOS 1.2.4
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This is copyied from "Mindstorms Not Just a Kid's Toy" by Paul Wallich in IEEE Spectrum September 2001: "With version 2.0 of the RCX firmware due this fall, the original hardware may have gone as far as its designers can take it, and what directions (...) (23 years ago, 10-Sep-01, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Re: EmuLegOs lives again
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Hi Luis Is it possible to make legOS homepage better? I think that's too simple and dull, don't you think so? then can you modify something in your HOWTOs when you do this updating? for example, in (URL) this code seems isn't compiled in legOS (...) (23 years ago, 10-Sep-01, to lugnet.robotics.rcx.legos)
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| | Re: EmuLegOs lives again
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This /rocks/. Hopefully I'll update the Lego and legOS HOWTOs to point to this soon. Luis (...) (23 years ago, 10-Sep-01, to lugnet.robotics.rcx.legos)
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| | Re: LegOS forced to use another name?
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(...) see (...) I think it's similar enough to LEGO that they'd have had a reasonable case if they'd fought it earlier. But now it's debatable whether they'd have any case at all. ROSCO (IANAL) (23 years ago, 10-Sep-01, to lugnet.robotics.rcx.legos)
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| | Re: Instructions for LegOS USB support
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(...) I'd be interested in tackling Linux, but we can't get the new towers in Australia yet 8?( ROSCO (23 years ago, 10-Sep-01, to lugnet.robotics.rcx.legos, lugnet.robotics)
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| | Re: LegOS forced to use another name?
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(...) Yeah, I saw your post on slashdot after I'd posted the link here. As you say, if they don't defend their trademark within a reasonable time, they lose the right to do so. I guess the best course of action in this case is "no action"!! ROSCO (23 years ago, 10-Sep-01, to lugnet.robotics.rcx.legos)
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| | Re: LegOS forced to use another name?
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(...) You ain't just whistlin' Dixie here Ka-On... Off-topic time: Typical "Time Magazine type" twist on the story here...I hate reading Time because every story seems to be written with an antagonistic bent, trying to stir up trouble, instead of (...) (23 years ago, 10-Sep-01, to lugnet.robotics.rcx.legos)
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| | Re: LegOS forced to use another name?
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(...) from that tiny yellow box? So it got a generic CPU that can read voltage from 3 ports and can adjust 3 power outputs. Really cutting-edge stuff there... That article is just full of you-know-what. (23 years ago, 10-Sep-01, to lugnet.robotics.rcx.legos)
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| | Re: LegOS forced to use another name?
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(...) Hmmm, does this mean they're acknowledging that people call them "legos" ? ~Grand Admiral Muffin Head (23 years ago, 10-Sep-01, to lugnet.robotics.rcx.legos)
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| | Re: Instructions for LegOS USB support
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Sigh. Doesn't look like there is any chance that this would work for *nix, except maybe with severe Wine hackery. Has anyone else (with any of the other alternative OSs) tackled the problem of the new towers? I suppose I can try plying one of my (...) (23 years ago, 10-Sep-01, to lugnet.robotics.rcx.legos, lugnet.robotics)
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