 | | Code-examples, books and papers in C/C++ for legOS?
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I am a swedish student that togheter with my colleague are working with legOS on a project: (URL) would welcome some suggestions about literature in C/C++ with legOS. Anything could be of interest. (22 years ago, 22-May-02, to lugnet.robotics.rcx.legos)
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| | LegOS, lnpd, and networking
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It seems to me that a lot of the discussion lately has been on networking multiple IR (infrared) clients using legOS. Is the IR tower using an ID? This would identify messages from the IR vs an RCX. Also could the addressing be extended to allow IP (...) (22 years ago, 21-May-02, to lugnet.robotics.rcx.legos)
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| | Setting LNP host address
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I've experimented with a couple of choices which were relatively easy to implement. Let me know if we should keep any these: 1. You can choose to set the host address at build time with a command-line option to make. Example: make LNP_HOSTADDR=2 (...) (22 years ago, 20-May-02, to lugnet.robotics.rcx.legos)
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| | lets drop exec
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I'd like to make a suggestion and see what everyone thinks. I'd like us to drop our current thread interface (exec/kill) in favor of a pthead interface. Since theading entered legOS I've wondered why the exec style was adopted, the functionality of (...) (22 years ago, 20-May-02, to lugnet.robotics.rcx.legos)
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| | lnpd and mandrake 8.2
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Hi, I have install the last legOS and have install lnpd to. But i have a problem when i run an applcation lnptest for example : it don't work.... Here is the problem "lnp_init: Network is unreachable". I run lnpd with the command "lnpd --nolock (...) (22 years ago, 20-May-02, to lugnet.robotics, lugnet.robotics.rcx.legos)
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| | new patch to modify LNP ID with util/dll
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I've posted a patch at sourceforge which allows you to modify the RCX's LNP id using the util/dll program. This should make life easier for those of us using multiple RCXs and LNP. This patch applies to the current CVS head, post 0.2.6, though it (...) (22 years ago, 20-May-02, to lugnet.robotics.rcx.legos)
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| | Re: cygwin error
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(...) what do i change and what PATH? (22 years ago, 18-May-02, to lugnet.robotics.rcx.legos)
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| | RE: latest legOS strangeness
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(...) Interesting question. I'll try this at home with my remote and RCX loaded with standard firmware. Anyway, that could only say that the remote control knows that it has to send a OFF (brake) cmd to the RCX when fwd and rev are pressed together, (...) (22 years ago, 17-May-02, to lugnet.robotics.rcx.legos)
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| | Re: cygwin error
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(...) / (...) 1) gcc for the H8/300 can be called h8300-hms-gcc or h8300-hitachi-hms-gcc. You may need to edit legOS's Makefile.common 2) Is the h8300 gcc in the PATH? Max. (22 years ago, 17-May-02, to lugnet.robotics.rcx.legos)
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| | Re: latest legOS strangeness
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(...) I may be wrong - 'my' RCX is actually my brother's, and is 3 hours drive away - but doesn't the remote control with the official firmware do float when buttons released, but brake if forward and reverse are pressed together? Max (22 years ago, 17-May-02, to lugnet.robotics.rcx.legos)
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| | Re: somewhat off topic, but...
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I'm NOT biased because I DIDN'T write the thing... Forth is a wonderful language that has a proven track record. I don't use it in my job simply because management has never heard about it. I don't mean to imply that languages are chosen by (...) (22 years ago, 17-May-02, to lugnet.robotics.rcx.legos)
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| | Re: latest legOS strangeness
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(...) is (...) Not really.. braking using the current generated by the motor (acting as a generator) once the power is removed from it. H-Bridge has what is called a break bit. The break bit simply shorts the two terminals on the motor together, (...) (22 years ago, 17-May-02, to lugnet.robotics.rcx.legos)
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| | Re: latest legOS strangeness
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(...) Maybe make this selectable with a build option? The bad thing about brake is that it actually draws current (=reduces battery life) ROSCO (22 years ago, 17-May-02, to lugnet.robotics.rcx.legos)
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| | cygwin error
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i got this error while trying to setup legOS 0.2.6 i'm running windows XP scott@FAMILYCOMPUTER /legos-0.2.6 $ make depend for i in util lib boot demo ; do make - --unix NODEPS=yes -C $i depend || exit 2 ; done make[1]: Entering directory (...) (22 years ago, 16-May-02, to lugnet.robotics.rcx.legos)
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| | 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 (...) (22 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 (...) (22 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 (...) (22 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 (...) (22 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 (...) (22 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 (...) (22 years ago, 15-May-02, to lugnet.robotics.rcx.legos)
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