 | | Re: Lego Network Protocol questions
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(...) So of course I was curious about getting rid of the complements. Apparently, they are not necessary, or so my testing so far seems to indicate. Under the several lighting conditions I tried, and for distances of up to 27' (the farthest I could (...) (25 years ago, 6-Jun-99, to lugnet.robotics.rcx.legos, lugnet.robotics)
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| | Re: Lego Network Protocol questions
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(...) I forgot to mention that one possible deficiency is the complements. They can be eliminated, for the most part, with careful counting of zeros. I haven't done any testing regarding this, so I don't know how many zeros in a row will break (...) (25 years ago, 6-Jun-99, to lugnet.robotics.rcx.legos, lugnet.robotics)
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| | Re: Lego Network Protocol questions
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Regarding the IR protocol, I have elsewhere suggested the following simple low-level format: 1 start, 1 stop, 2400 baud, odd parity 55 f0 f0 L ~L D1 ~D1 .. Dn ~Dn C ~C L is number of data bytes, valid range 1..255, less depending on buffer sizes Dx (...) (25 years ago, 6-Jun-99, to lugnet.robotics.rcx.legos, lugnet.robotics)
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| | RE: Lego Network Protocol questions
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Sorry, I have been out of the loop for quite some time now on the protocol. Next time will someone smack me when I voluntarily take a compiler theory course on top of 3 other computer sciences courses. I had no life for over a month. I am currently (...) (25 years ago, 5-Jun-99, to lugnet.robotics.rcx.legos, lugnet.robotics)
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| | Re: I'm having problems getting legos to compile
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(...) you can specify where the .h files are using the -I switch... maybe you just need to check the Makefile (or Makefile.common) and change some paths there... or: check the configuration of compiler, sorry, I can't help with that... erik (25 years ago, 5-Jun-99, to lugnet.robotics.rcx.legos)
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| | I'm having problems getting legos to compile
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on cygwin.. I'm sure it's something I forgot to setup. Can anyone help?? it's complaining that it can't find the .h files.. (25 years ago, 5-Jun-99, to lugnet.robotics.rcx.legos)
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| | compilation errors w/ legOS 0.1.7+patches
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Hello all! I just downloaded and installed legOS 0.1.7 and applied all of the available patches. I created a quick program, one which one turns on a motor, sleeps, the returns, and attempted to compile it. This is the error that I get: (...) (25 years ago, 3-Jun-99, to lugnet.robotics.rcx.legos)
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| | Re: Download at www.multimania.com
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I have all the LegOS files (including reasonably recent egcs and binutils .tar files) here: (URL) As usual, I recommend the LegOS howto for new users- (URL) it helps... (...) ###...### God was my co-pilot, but we crashed in the mountains and I had (...) (25 years ago, 1-Jun-99, to lugnet.robotics.rcx.legos)
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| | Re: Download at www.multimania.com
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I got exactly the same problem - I cannot get the legos nor other files from the legos site. I always get random sized files (shorter than actual size of files I try to dowanload). somebody help please. I just got the mindstorm and would love to (...) (25 years ago, 31-May-99, to lugnet.robotics.rcx.legos)
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| | emulegOS: a legOS (and RCX) emulator
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Marco Beri and I just released the first version of emulegOS, a software emulator of legOS and the RCX itself. We like a lot legOS and the way it opens a broad range of possibilities to the RCX, but felt the need of a more comfortable environment (...) (25 years ago, 29-May-99, to lugnet.announce, lugnet.robotics, lugnet.robotics.rcx.legos)
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| | Re: light values?
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Ah... that makes sense- I didn't realize that power was completely cut. Should have (I'm not *that* incompetent in reading electronics diagrams). Oh well. Thanks for the feedback, John... Luis (...) ###...### God was my co-pilot, but we crashed in (...) (25 years ago, 28-May-99, to lugnet.robotics.rcx.legos)
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| | Re: light values?
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(...) The light sensor is an active sensor, which means that it requires power to operate. When you call ds_passive, you are no longer supplying power to the sensor between readings. Some people have reported being able to use the light sensor for (...) (25 years ago, 28-May-99, to lugnet.robotics.rcx.legos)
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| | Re: light values?
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Some months ago, I posted this question, but got no response. I've finally played with it some more this morning and have some observations: 1) After setting ds_active, my light sensor returns values of 0-100, as I should. 2) After calling (...) (25 years ago, 28-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, Kekoa Proudfoot writes: [ ... ] (...) To this end, i've started work on a Discrete Event Simulator. The idea is to use this to see the effects of some of the things you mention above. Note that this is not an (...) (25 years ago, 21-May-99, to lugnet.robotics.rcx.legos, lugnet.robotics)
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| | Download at www.multimania.com
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Hi, I'm not sure exactly why this is, but for some reason I can't get a binary download to work from .. (URL) .. Whenever I try and download any of the files from this server ( using both a PPP line at home, and the connection at Uni.) I get (...) (25 years ago, 16-May-99, to lugnet.robotics.rcx.legos)
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| | Re: firmdl question
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(...) I believe the units are tens of firmware bytes downloaded already. Oh, to point out the obvious, this is a ROM thing, not a firmdl thing. -Kekoa (25 years ago, 13-May-99, to lugnet.robotics.rcx.legos)
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| | Re: Rom sensor read routine
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(...) The current LegOS model really hammers the sensors, almost to the point of oversampling them. It only takes a short while (less than 0.1 ms, I think) to sample all four sensors; I think LegOS samples the next sensor immediately after finishing (...) (25 years ago, 13-May-99, to lugnet.robotics.rcx.legos)
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| | firmdl question
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When using firmdl to download a program to the RCX, what exactly do the numbers on the LCD indicate? Are there units I should be attaching to them, or are they just there to indicate progress without specific units? Just curious- Luis ###...### God (...) (25 years ago, 13-May-99, to lugnet.robotics.rcx.legos)
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| | Re: Rom sensor read routine
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Hi Kekoa, (...) I am fixing this right now. (...) The current legOS sensor read cycle is this (i=illuminate, c=A/D conversion) S1: iii iii iii ccc S2: ccc iii iii iii S3: iii ccc iii iii S4: iii iii ccc iii If you find your sensor 2 readings to be (...) (25 years ago, 2-May-99, to lugnet.robotics.rcx.legos)
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| | Re: Lego Network Protocol questions
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(...) I believe transmission and reception are independent, i.e. the emitter circuit is decoupled from the receiver circuit. The hardware on the H8 is full duplex. Once you finish sending a byte, I think you get two interrupts: one saying a byte has (...) (25 years ago, 5-May-99, to lugnet.robotics.rcx.legos, lugnet.robotics)
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