 | | Re: Camera and legOS
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1. the Vision Command Camera and writing software for the camera 2. interfacing your software with a legOS powered robot. 1. The Lego Vision Command is actually a Logitech USB camera repackaged inside some lego pieces. There is a [mostly inactive] (...) (23 years ago, 14-May-02, to lugnet.robotics.rcx.legos)
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| | Hmm... install not going so smooth
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Hello, I decided to scrape my machine today and when I tried to reinstall legos I ran into a problem compling the cross compiler under cygwin. Here is a list of the packages I have installed: Cygwin Package Information Package Version ash 20020131-1 (...) (23 years ago, 14-May-02, to lugnet.robotics.rcx.legos)
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| | Freebsd 4.4 and legos
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Ok i just started using freebsd and i was wondering if anyone could tell me what tools i need to install to make legos compile and run correctly. Thankx, Jason Hensler (23 years ago, 14-May-02, to lugnet.robotics.rcx.legos)
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| | Re: More problems with floats
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(...) It turns out to be the egcs 1.1.2 I compiled; the RPMs from sourceforge work fine. I'll try to find why my compiler was buggy... Thanks for your reply. Eric (23 years ago, 13-May-02, to lugnet.robotics.rcx.legos)
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| | Camera and legOS
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I wonder if anyone knows about the compability between legOS and the camera set named Vision command that are available for the Legorobot? Has anyone made any progress in trying to get it to work wíthin legOS? We are to guys at the University in (...) (23 years ago, 13-May-02, to lugnet.robotics.rcx.legos)
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| | Re: More problems with floats
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(...) Eric, did you ever resolve this? If not, I could try to reproduce this... but I'd need two things: 1) the type of the return value of getVarVal 2) the type of the bool typedef Also, if you could run your cross compiler with the -v flag, that (...) (23 years ago, 13-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Converting a float to an integer
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It looks like xdist and ydist are integers. You divide an integer by an integer, the answer is an integer. For example, if xdist=5 and ydist=10, you have 5/10, the answer is 0 (with a remainder of 5). So, if you do the multiply first, you will be (...) (23 years ago, 13-May-02, to lugnet.robotics.rcx.legos)
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| | RE: Converting a float to an integer
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I have built a plotter and want to draw a diagonal line of varying angles. It requires one motor to run slower then the other at a ratio based on the distance it has to travel compared to the other one. So I do something like this xspeed = (int) (...) (23 years ago, 9-May-02, to lugnet.robotics.rcx.legos)
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| | Re: egcs compiler - float problems?
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(...) I have not tried to compile this, but one thing that looks suspicious is that you are using doubles. Doubles are not supported. The compiler I have (some old version of GCC) treats doubles and floats as the same type. The compiler you're using (...) (23 years ago, 10-May-02, to lugnet.robotics.rcx.legos)
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| | egcs compiler - float problems?
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Can someone using the egcs compiler suite test the following code? It seems it doesn't compile under egcs. int main(int argc, char *argv[]) { double foo = 1.0; return foo > 0.1 ? 0 : 1; } Compiles fine under gcc 3.0.3. Regards, Michael (23 years ago, 10-May-02, to lugnet.robotics.rcx.legos)
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| | More problems with floats
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When I try to compile a program containing the following function: bool tr_guard_foo_loc2_t0() { return getVarVal(&var_foo_cl) >= 0.1; } I get this error: /tmp/ccyEbqnS.s: Assembler messages: /tmp/ccyEbqnS.s:237: Error: cannot create floating-point (...) (23 years ago, 10-May-02, to lugnet.robotics.rcx.legos)
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| | Re: semaphores
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Would it be possible for you to send the entire source? I would like to see how it interacts with the rest of the program. Thanks for your help. "kenneth johansen" <kennethj@stud.cs.uit.no> wrote in message news:3CDAC372.34D72C....uit.no... (...) (...) (23 years ago, 10-May-02, to lugnet.robotics.rcx.legos)
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| | Re: ___cmpsi2
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(...) OK, I planned to test 0.2.6; this is the right moment to do it. (...) Do you know why? (I'm just curious) (...) Thank you very much. This was really important to me. Eric (23 years ago, 9-May-02, to lugnet.robotics.rcx.legos)
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| | Re: ___cmpsi2
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(...) Don't know. Just made a quick download from sourceforge. Didn't install, just looked through with mc. Seems that in the mint-lib, both cmp2-files are missing. And no printf in the c library path. Regards, Michael (23 years ago, 9-May-02, to lugnet.robotics.rcx.legos)
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| | Re: ___cmpsi2
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(...) How did *that* happen?!!?!? Just curious. Somebody should point a finger, just for yuks. -Kekoa (23 years ago, 9-May-02, to lugnet.robotics.rcx.legos)
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| | Re: semaphores
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a short example: #include <semaphore.h> // for semaphore opperations // global buffer, used to store incoming messages. // the buffer is checked by the application waiting for the message. struct inn_msg{ char *msg; sem_t lock; }; //create a (...) (23 years ago, 9-May-02, to lugnet.robotics.rcx.legos)
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| | semaphores
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Does anyone have any code that implements semaphores and shows where they might be useful? That is one place that the documentation seems a little weak. Thanks, Sam (23 years ago, 9-May-02, to lugnet.robotics.rcx.legos)
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| | Re: ___cmpsi2
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(...) Had to look myself to belive it. But you are right, cmpsi2 is in the 0.2.6 system, but not in the 0.2.5 system. (...) No, that are the wrong ones. You need the lib functions for the cross compiled code. libgcc.a is code that gcc needs on your (...) (23 years ago, 9-May-02, to lugnet.robotics.rcx.legos)
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| | Re: ___cmpsi2
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(...) I don't find cmpsi2 in the sources of LegOS 0.2.5 (in lib/mint)! I found a _cmpsi2.o in libgcc.a (from egcs 1.1.2), but I really don't know how gcc (and ld) uses that library. The makefiles come from the LegOS tarball. According to the output, (...) (23 years ago, 9-May-02, to lugnet.robotics.rcx.legos)
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| | Re: ___cmpsi2
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(...) cmpsi2 is part of the libmint.a library. Would you please post (or send me) your source code and your Makefile? Regards, Mike (23 years ago, 9-May-02, to lugnet.robotics.rcx.legos)
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