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I succeeded in using (emulated) floats in a legOS program. Here are some instructions in case some of you want/need to try 32 bit FP emulation. First of all I must point out that I have no merit at all in having got this result, a part from having (...) (25 years ago, 5-May-99, to lugnet.robotics.rcx.legos)
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| | Re: Lego Network Protocol questions
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(...) Just to state my interests: I'm mainly interested in the protocol, eg what level of service it would provide etc. In particular, I'm interested in layering a higher level gauranteed delivery protocol atop whatever simple one is provided. (...) (...) (25 years ago, 5-May-99, to lugnet.robotics.rcx.legos, lugnet.robotics)
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| | Re: I'm being stupid. But how?
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Here's the fair play policy: (URL) right. The Lego Group is exceedingly protective of their trademarks and intellectual property. If they haven't pursued action against legOS, it's very likely a deliberate policy rather than an oversight. Jonathan (...) (25 years ago, 5-May-99, to lugnet.robotics.rcx.legos)
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| | Re: Lego Network Protocol questions
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In lugnet.robotics.rcx.legos, Ralph Hempel writes: [ ... ] (...) This is actually the book from which the thoughts I posted about arose. It is, indeed, a great book ;-) (25 years ago, 5-May-99, to lugnet.robotics.rcx.legos, lugnet.robotics)
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| | Re: I'm being stupid. But how?
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(...) Considering the past history of TLG, I'd say the fact that they haven't said anything about the name LegOS says a lot. TLG is paranoid about their trademark. Use Lego like a noun (as in, "I liked Legos a lot when I was a kid," or "I play with (...) (25 years ago, 4-May-99, to lugnet.robotics.rcx.legos)
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| | Re: I'm being stupid. But how?
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(...) Lego's always been a bit of a hobbyist's thing[1] so probably even TLG thinks there isn't much point in siccing lawyers on us, even if they disapproved. Big companies[2] lawyering hobbyists is really bad PR :) [1] not in any way derogatory, (...) (25 years ago, 4-May-99, to lugnet.robotics.rcx.legos)
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| | Re: HOWTO v 0.1
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(...) Not ATM. (If I get gdb actually *working* with the LegOS I'll do a little HOWTO for that and stick it on the web, though... has anyone got it working right yet? I'm not stuck or anything, I just haven't finished getting it running.) (25 years ago, 4-May-99, to lugnet.robotics.rcx.legos)
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| | tm-and-ir.c
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Is anyone else having problems with this? The receive and display part works fine but it won't send "Hello World" when I press the View button. The srec from the LegOS home page works fine but if I build it myself it doesn't. I've tried both the web (...) (25 years ago, 1-May-99, to lugnet.robotics.rcx.legos)
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| | Re: I'm being stupid. But how?
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(...) Hahaha, regarding that LegOS is more of a library than an OS, my opinion too. But you have to admit the name has some appeal, even if it is something of a misnomer... :) Clearly it says something about TLG's attitude toward LegOS that they (...) (25 years ago, 3-May-99, to lugnet.robotics.rcx.legos)
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| | Re: HOWTO v 0.1
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(...) Thanks (I think...) (...) Because I've found that it is significantly faster, and nearly canonical (as, technically speaking, it is part of the same domain, despite being hosted elsewhere(Stanford, IIRC.)) The only reason I found it in the (...) (25 years ago, 3-May-99, to lugnet.robotics.rcx.legos)
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| | I'm being stupid. But how?
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I've written a test program using the 19990330 LegOS snapshot[1], and it's misbehaving oddly. The program looks like this: (the headers are the result of my frobbing the LegOS headers to refer to <mindstorms/{legOS header}>...) #include (...) (25 years ago, 29-Apr-99, to lugnet.robotics.rcx.legos)
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| | Re: HOWTO v 0.1
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(...) Not half bad IMHO. But why point egcs searchers at ftp://go.cygnus.com/...gcs-1.1.2/ ? The canonical site is ftp://egcs.cygnus.co...cs-1.1.2/. egcs-1.2 will be out fairly soon. There have been changes to the h8300 support, but the changes are (...) (25 years ago, 29-Apr-99, to lugnet.robotics.rcx.legos)
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| | Read me first! Re: case statement doesn't work- any clue?
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Nevermind. Dangit. Forgot break statements like a moron. -Luis (...) ###...### God was my co-pilot, but we crashed in the mountains and I had to eat him. -bumper sticker ###...### (25 years ago, 3-May-99, to lugnet.robotics.rcx.legos)
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| | Re: case statement doesn't work- any clue?
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(...) Doh! You haven't put any breaks between the cases. BTW, if LegOS can change the semantics of C its cleverer than I thought ... :-) Cheers, Ben. -- (URL) grandfather once told me that there are two kinds of people: those who work and those who (...) (25 years ago, 3-May-99, to lugnet.robotics.rcx.legos)
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| | case statement doesn't work- any clue?
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I'm trying to program some very rudimentary debugging stuff- just outputting variables to the screen. Basically, I want to use a switch/case statement to read an integer variable (in this case ID_number) which is then linked (by the case statement) (...) (25 years ago, 3-May-99, to lugnet.robotics.rcx.legos)
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| | Re: Lego Network Protocol questions
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(...) Oops, I must've just caught the tail end of the conversation. I assumed the standard [lame] lego protocol was being discussed, not a custom protocol. Sorry. Dave (25 years ago, 2-May-99, to lugnet.robotics.rcx.legos, lugnet.robotics)
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| | RE: Lego Network Protocol questions
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With all of the talk about networking and IP embedding and such, and since I'm working on a proprietary '485 master/slave protocol for a client, I had to dust off a GREAT university text on networks. It devotes an entire chapter to ALOHA and slotted (...) (25 years ago, 1-May-99, to lugnet.robotics.rcx.legos, lugnet.robotics)
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| | Re: Lego Network Protocol questions
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(...) Dave, did you catch the crosspost from lugnet.robotics.rcx.legos? I think there were details discussed there that may or may not have amounted to a fairly specific proposal for a protocol for LegOS. Anybody care to summarize whatever was (...) (25 years ago, 1-May-99, to lugnet.robotics.rcx.legos, lugnet.robotics)
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| | Re: Lego Network Protocol questions
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(...) Transmit whenever you feel like it and hope you didn't obliterate data coming from the other direction. Rudimentary, but still quite effective given the typical use pattern with is host driven command/response. With RCX to RCX communication (...) (25 years ago, 30-Apr-99, to lugnet.robotics.rcx.legos, lugnet.robotics)
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| | Lego Network Protocol questions
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Hi all. I came to the discussions on the LNP a bit late and was wondering if the following questions had been discussed (I flipped through an old Communications course book and noted some thoughts): - Can we do Carrier Sense *whilst* we are (...) (25 years ago, 30-Apr-99, to lugnet.robotics.rcx.legos, lugnet.robotics)
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