 | | Re: problem with floating point numbers (legOS 0.2.5)
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(...) In my legOS setup (legOS0.2.5, SuSE linux 7.0), all programs work as expected. Have you changed something lately in the float-library? Or are there different versions of the gcc crsosscompiler chain? Mike (23 years ago, 29-May-01, to lugnet.robotics.rcx.legos)
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| | Re: IR Tower Use
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(...) nod, but that made me think if we can use the IrComm package, and use a laptop's ir port to communicate with the rcx - didn't get a chance to try it yet - did anyone? Dan (23 years ago, 29-May-01, to lugnet.robotics.rcx, lugnet.robotics, lugnet.off-topic.geek)
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| | Re: IR Tower Use
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(...) Ooops, sorry. I didn't really mean proprietary -- I meant "not normal for remote controls". (23 years ago, 29-May-01, to lugnet.robotics.rcx, lugnet.robotics, lugnet.off-topic.geek)
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| | gcc [was Re: problem with floating point numbers (legOS 0.2.5)]
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Has anyone tried to use gcc 3.0 (one of the pres) with legOS? Just curious... Luis (...) (23 years ago, 29-May-01, to lugnet.robotics.rcx.legos)
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| | Re: problem with floating point numbers (legOS 0.2.5)
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(...) Actually, the problem seems to come with gcc 2.96 (recent installation of Red Hat 7.1). My program runs without any problem on an other PC with gcc 2.95. I have forced the system to use egcs, re-built everything, and now it works fine. (23 years ago, 29-May-01, to lugnet.robotics.rcx.legos)
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| | Library
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I have written a tiny messaging package for lejos. What I'm having trouble with is where to put it and it's class files so that I can use it in my lejos programs just like one of the lejos classes/packages. Currently I have to place a copy of my (...) (23 years ago, 29-May-01, to lugnet.robotics.rcx)
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| | Re: lnp rcx hostaddress [and a summer legOS release?]
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I'm very open, to feedback to tell me why I'm nuts and/or to help in making sure I don't break anything important to current legOS users. I certainly won't change anything serious without announcing and discussing it here. Luis (...) (23 years ago, 29-May-01, to lugnet.robotics.rcx.legos)
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| | Re: lnp rcx hostaddress [and a summer legOS release?]
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Hi I'm preparing for the same project Vittorio's working on, a high level library in C++ to send explicit commands to rcx from a pc and back. I hope if you gonna change the low level library you will mantain a certain compatibility so that I won't (...) (23 years ago, 28-May-01, to lugnet.robotics.rcx.legos)
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| | Re: lnp rcx hostaddress [and a summer legOS release?]
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Vittorio- I've frequently wondered the same, but since I've never had reason to use LNP I've never fixed it. If you'd like to submit a patch I'll gladly apply it to the source tree. In other news- I'm back, more or less. While this week will be (...) (23 years ago, 27-May-01, to lugnet.robotics.rcx.legos)
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| | lnp rcx hostaddress
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I have an important question: WHY the rcx lnp address (and mask) is hardcoded in the library? I inspected the source code for both the pc part and the rcx part. The pc library is well formed and the init function allows you to set up the address and (...) (23 years ago, 27-May-01, to lugnet.robotics.rcx.legos)
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| | Re: problem with floating point numbers (legOS 0.2.5)
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(...) You are the second person to report something like this, so there must be something wrong somewhere. I will take a closer look at this when I get a chance. I am busy until Tuesday though. I know I will forget, so keep e-mailing me until I fix (...) (23 years ago, 26-May-01, to lugnet.robotics.rcx.legos)
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| | Re: IR Tower Use
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(...) This isn't true at all. The tower converts an RS-232 serial transmission directly into IR and vice-versa. It is a pretty standard protocol. -Kekoa (23 years ago, 26-May-01, to lugnet.robotics.rcx, lugnet.robotics, lugnet.off-topic.geek)
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| | Re: IR Tower Use
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(...) You can't really do what you are trying to do. The tower is designed to operate in request-reply mode. It sends a request, waits a few seconds, receives a reply during that time, then turns off. The idle state of the tower is off, and (...) (23 years ago, 26-May-01, to lugnet.robotics.rcx, lugnet.robotics, lugnet.off-topic.geek)
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| | Re: Custom Firmware, IR Problems, and Dead RCXs (long)
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(...) Maybe this is shedding some light on why LEGO removed the Power Port in the 1.5's. To remove a known problem without dealing with it.?.?.? Dean -- Coin-Op's For Sale!: (URL) Lego Workshop: (URL) Lego Club: (URL) (23 years ago, 26-May-01, to lugnet.robotics.rcx)
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| | RE: Custom Firmware, IR Problems, and Dead RCXs (long)
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Even more interesting.... I've also just replaced the IRED I replaced a few hours ago in my RCX :-( This time, I'm putting a limiting resistor between the IREDs in the RCX to keep the current within limits. The following is pure conjecture on my (...) (23 years ago, 26-May-01, to lugnet.robotics.rcx)
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| | RE: Custom Firmware, IR Problems, and Dead RCXs (long)
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(...) Actually, there's a regulator on the Tower that takes the voltage for the digital side to +5 and keeps it there. The capacitor is only rated for 10V. The higher voltage will allow higher current through the IREDs as they are connected right to (...) (23 years ago, 26-May-01, to lugnet.robotics.rcx)
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| | Re: Custom Firmware, IR Problems, and Dead RCXs (long)
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(...) I'm pretty sure I know your problem to your number 2... The IR Tower has no protection against higher power. Running an unregulated power source into the IR tower is not a good idea! Use a 9v regulator package (The little 3 prong packages with (...) (23 years ago, 26-May-01, to lugnet.robotics.rcx)
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| | Custom Firmware, IR Problems, and Dead RCXs (long)
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The following information is my own opinion and not endorsed or verified in any way by LEGO. That being said, I think that now is the time to relate some experiences I've had over the past couple of months with my RCX and IR tower - and it boils (...) (23 years ago, 26-May-01, to lugnet.robotics.rcx, lugnet.robotics.rcx.pbforth, lugnet.robotics.rcx.legos)
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| | Re: IR Tower Use
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(...) Not really -- the tower uses its own proprietary communcations format. It's similar enough to that used by remote controls that learning remotes can pick up the signals, but I haven't heard of anyone going the other way around. (23 years ago, 25-May-01, to lugnet.robotics.rcx, lugnet.robotics, lugnet.off-topic.geek)
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| | IR Tower Use
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I know this may be a bit off topic, but didn't know where else to post, I own an IR tower and remote control, and was wondering if it is possible to use the IR tower for other things. eg using PC + tower to control stereo/TV, or using IR remote to (...) (23 years ago, 25-May-01, to lugnet.robotics.rcx, lugnet.robotics, lugnet.off-topic.geek)
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