 | | Re: latest legOS strangeness
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I was torn between 'float' and 'brake' when implementing the remote control handler. I eventually opted for 'brake' since that is how the Lego RCX firmware does it. With regard to the strange motor behavior. I too noticed this while debugging the (...) (23 years ago, 16-May-02, to lugnet.robotics.rcx.legos)
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| | Re: latest legOS strangeness
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(...) Nope, shorting the motors has no effect on the batteries actually.. when you spin the motor, it acts like a generator... by shorting out the motor you are actually using the motors own reverse emf (electromotive force) to brake system. I (...) (23 years ago, 16-May-02, to lugnet.robotics.rcx.legos)
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| | Re: latest legOS strangeness
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(...) To ansswer my own question. The problem was caused by memory corruption. In this case the memory corruption was caused by downloading a very large program in slot 1, and a small program in slot 7. The loading of the program in slot 1 seems to (...) (23 years ago, 16-May-02, to lugnet.robotics.rcx.legos)
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| | latest legOS strangeness
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I checked out the head of the CVS tree last night and was trying out some of the new stuff. I noticed something quite odd and wanted to see if anyone has any ideas. When I run programs, and the motors aren't turned on they make a stange clicking (...) (23 years ago, 16-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Lingo
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No, sorry if I was confusing. EGCS is now obsolete. See (URL) and (URL) Original Message ----- From: "Samuel Winchenbach" <swinchen@eece.maine.edu> To: <lugnet.robotics.rcx...ugnet.com> Sent: Wednesday, May 15, 2002 3:24 PM Subject: Re: Lingo (...) (23 years ago, 15-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Lingo
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(...) EGCS was an offshoot of GCC, with the only difference being how the developers worked together (the bazaar vs. the cathedral model). Eventually, EGCS was declared the victor as most developers switched to it and it became the official GCC (...) (23 years ago, 15-May-02, to lugnet.robotics.rcx.legos)
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| | RE: somewhat off topic, but...
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Kenneth, (...) I wrote it so I'm biased... (...) I'll get to the ttasker in a minute, but pbForth is the only alternative firmware with native support for SERVOS if you use the simple circuit I developed here: (URL) The newest version 2.1.3 has an (...) (23 years ago, 15-May-02, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx.pbforth)
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| | Re: Lingo
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(...) once (...) site for it anywhere. gcc 3.0.4 was ubdated earlier this year... This whole relationship between gcc and EGCS is very confusing, especially when www.freshmeat.net doesnt even have egcs available! (23 years ago, 15-May-02, to lugnet.robotics.rcx.legos)
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| | somewhat off topic, but...
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anyone tried pbforth ? im doing a comparison between the different possibilities here and looking at pbforth i was somewhat intrigued, until i discovered that you cannot multitask(more than 1 thread of execution). anyone here tried pbforth and can (...) (23 years ago, 15-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Lingo
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(...) A mailing list without any posts isn't much use :-) (...) gcc is the compiler, and it uses the binutils tools. The build script just automates the several commands you would otherwise have to type. (...) Yep. You need a compiler that creates (...) (23 years ago, 15-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Lingo
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I forgot one.... arg #9) What do the patches do that come with the build script? there are two of them.... (...) scripts... (...) cross (...) together, (...) (23 years ago, 14-May-02, to lugnet.robotics.rcx.legos)
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| | Lingo
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Sorry to make so many posts here! I am a little confused by some of the lingo I see flying around... so I am going to make a number of questions... #1) In windows, why do we need to download binutils, gcc, and the scripts... what do they all do? #2) (...) (23 years ago, 14-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Hmm... install not going so smooth
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I build and install with: make ALL_TARGET_MODULES="" make INSTALL_TARGET_MODULES="" install But I used gcc-2.95.3 (pristine, not cygwin source) (with binutils-2.12, for reference) (...) (23 years ago, 14-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Hmm... install not going so smooth
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"Samuel Winchenbach" <swinchen@eece.maine.edu> wrote in message news:Gw3upA.J4s@lugnet.com... (...) h8300-hitachi-hms-gcc -O2 -fno-builtin -fomit-frame-pointer -Wall -I/home/Ad (...) ministrator/legos/include -I/home/Administrato...nclude/lnp -I. (...) (23 years ago, 14-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Hmm... install not going so smooth
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I think I may have gotten closer. I compiled legOS and that seemed to work fine... I followed the instructions verbatim.... then I tried doing the following: $ cd legos-0.2.6/demo $ rm -f *.o *.lx $ make helloworld.lx h8300-hitachi-hms-gcc -O2 (...) (23 years ago, 14-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Hmm... install not going so smooth
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"Ed Manlove" <emanlove@ieee.org> wrote in message news:Gw3s5x.Cnx@lugnet.com... (...) What about these errors? /build/gcc-2.95.2/li...temp.c:29: stdio.h: No such file or directory /build/gcc-2.95.2/li...temp.c:30: sys/types.h: No such file or (...) (23 years ago, 14-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Hmm... install not going so smooth
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Samuel, From Paolo install instructions (under "2. Build the Hitachi-H8 cross-compiler" last bullet) "Ignore the warnings in compile process. It should work." Essentially you should get some warnings. I suggest you go ahead an try compiling the (...) (23 years ago, 14-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Hmm... install not going so smooth
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Thanks for everyone's help. I just decided to install all the packages.... but now I have a different problem. I start to compile the cross compiler, and everything seems to be going fine.... except at the very very end. I get the following message: (...) (23 years ago, 14-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Hmm... install not going so smooth
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setup.exe Package Listing on cygwin.com will tell you that you need the libintl1 package. Probably dependencies for grep are incorrect, otherwise it would have been installed automatically. ----- Original Message ----- From: "Samuel Winchenbach" (...) (23 years ago, 14-May-02, to lugnet.robotics.rcx.legos)
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| | Re: Hmm... install not going so smooth
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Samuel, Yes I have seen this error. I am guessing your install a couple of weeks ago was actually using B20 version of cygwin? or that you have reinstalled cygwin? I was moving things around and got this error along with some error dialog boxes (...) (23 years ago, 14-May-02, to lugnet.robotics.rcx.legos)
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