 | | Re: RCX as a PGP engine
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(...) Excellent point, Benton Jackson e-mailed me with the following: (...) Good idea using a external sensor to seed some sort of random number generator function. However, the codebase for PGP is pretty darned large and after looking at the source (...) (23 years ago, 9-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: RCX as a PGP engine
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(...) The key word is a "good" generator. Random() is way too predictable to use in a crypto application. (23 years ago, 9-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: exponents, e^
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(...) Remote control and lejos: You can download a Java object to accept commands from the remote. Check out (URL) lejos. Roger (23 years ago, 9-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: NQC "No reply from RCX" Help Please
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Wow! Hey..thanks..that was it. I hadn't changed my batteries in any of my RCX since I got them. When I changed all of them a few weeks ago, I must have lost the firmware. I saw your name..and was like.."hmm where have I heard of you before" then I (...) (23 years ago, 9-Mar-02, to lugnet.robotics)
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| | Re: NQC "No reply from RCX" Help Please
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Is the firmware still installed on the RCX? When you turn it on if it just shows a single digit, then there isn't any firmware. With firmware loaded you should see something like "00.00!1" where ! is the LCD icon of a person. If firmware is not (...) (23 years ago, 9-Mar-02, to lugnet.robotics)
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| | Re: Deleting Programs
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(...) If you mean wiping the firmware, press ON and Prgm at the same time. If you want to delete individual programs, I've cooked up a little C code (on the PC side) to do that. It requires liblnp and lnpd. If you want, I'll post it or e-mail it to (...) (23 years ago, 9-Mar-02, to lugnet.robotics.rcx)
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| | Re: Makefile command to make *.map files
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I had a similar problem with the "sort" program apparently not functioning and then someone kindly looked at my error output and pointed out that I should make sure that the CYGWIN bin path was added to the FRONT of my path as declared in my (...) (23 years ago, 9-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: RCX as a PGP engine
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(...) Even if it needed FP, legOS supports that. (...) Well, maybe. Maybe not. legOS has a random() function, right? Once the TCP/IP patch is stable, why not use an RCX as an echo server with built in en/decryption? You could just telnet to it, type (...) (23 years ago, 9-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: BricxCC release 3.3.4.2
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(...) First, you are doing a great job! The support for pbForth is a good idea. And there is only one thing to make BricxCC better, if someone port it to Linux. Best Regards Joerg (23 years ago, 8-Mar-02, to lugnet.robotics.rcx)
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| | Re: Attention cygwin and windows users
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Quoting Ed Manlove (emanlove@ieee.org): (...) If we actually get to the point of doing another release (and thus finding a maintainer for the project, etc) maybe this is something we should consider integrating? Anyone else building on Cygwin and (...) (23 years ago, 8-Mar-02, to lugnet.robotics.rcx.legos)
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| | Attention cygwin and windows users
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For those using the cygwin tools under a windows OS as described in the article "LegOS 0.2.4 - Instructions for installing on NT/Win9x with Cygwin" you could be experiencing a conflict with dos and cygwin tools. In particular is you are following (...) (23 years ago, 8-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: Compile error when make demos
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Zhengrong, I know this is an old post but what was your setup for this build (OS,cygwin?, etc)? Ed (...) (23 years ago, 8-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: Makefile command to make *.map files
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For clarity I am running under Win98 using CYGWIN tools as outlined by the instructions "LegOS0.2.4 - Instructions for installing on NT/Win9x with Cygwin". I was looking for help on the sort command using $sort --help but I was getting a similar (...) (23 years ago, 8-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: Part 572 in UBS
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I see one reason for that: 1x1 Square Plates tend to turn and don't stay aligned. You don't have this problem with round pieces... Philo www.philohome.com (...) (23 years ago, 8-Mar-02, to lugnet.robotics)
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| | Re: Makefile command to make *.map files
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Quoting Ed Manlove (emanlove@ieee.org): (...) I can't speak for absolute certain about this, not being familiar with that part of the code, but sort -u is used to unique a list of strings. That is, if you pipe a file: spam spam spam eggs through (...) (23 years ago, 8-Mar-02, to lugnet.robotics.rcx.legos)
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| | Makefile command to make *.map files
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What is the sort command doing in the command to create *.map files within the Makefile.kernal? # how to make map files %.map: %.coff $(NM) $*.coff | sort -u > $*.map Doing my build I get the following error and the resulting map file has size zero. (...) (23 years ago, 8-Mar-02, to lugnet.robotics.rcx.legos)
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| | Part 572 in UBS
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Hi. I just received a Ultimate Builders Set today and I'm having a lot of fun with it. I have however a pair of questions that maybe someone could explain me. 1. There are four 'Technic Liftarm 1 x 9 (7 x 3)' (572) included (in very funny colors) (...) (23 years ago, 8-Mar-02, to lugnet.robotics)
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| | NQC "No reply from RCX" Help Please
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Ahhh..can someone please help me out here. I'm at my last straw with this problem. I'm Using: Bricxcc 3.3 NQC 2.4 a4 Windows 98 USB Tower from RIS 2.0 This has all worked about a month ago.. I haven't made any hardware changes to my system recently, (...) (23 years ago, 8-Mar-02, to lugnet.robotics)
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| | Re: Are these Robolab parts?
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(...) Thanks a lot! Now I at least know WHAT I have... too bad I can't use it. I have 2 sets, if anybody's interested, drop me a line at javanree@vanree.net and I'm sure we can work something out :) (23 years ago, 8-Mar-02, to lugnet.robotics.edu)
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| | Re: Are these Robolab parts?
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(...) Jan This comes from the original LEGO TC Logo materials (1980s) and was used as a counting wheel. You could use it as a rotation sensor by counting the number of seperations between black and white. It could also be used as an angle sensor. (...) (23 years ago, 8-Mar-02, to lugnet.robotics.edu)
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| | BricxCC release 3.3.4.2
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I've just released a new version of BricxCC. This release add support for downloading non-standard firmwares (such as pbForth). I've also added support for several languages other than NQC with user customizable syntax highlighting. These languages (...) (23 years ago, 7-Mar-02, to lugnet.robotics.rcx)
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| | Re: binutils?
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(...) It has several useful things in it, but the one most important for legOS is probably the linker, ld. ROSCO (23 years ago, 7-Mar-02, to lugnet.robotics.rcx.legos)
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| | binutils?
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when i first got legOS up and running i used rcx-egcs-1.1.2-1.i386 rcx-egcs-c++-1.1.2-1.i386 rcx-binutils-2.9.5.0.22-1.i386 i'm assuming the first two are the c and c++ compilers, however what is the function of the binutils? thanks (23 years ago, 7-Mar-02, to lugnet.robotics.rcx.legos)
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| | backing up programs
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Hi, I have a couple of RCX's and was wondering if anyone has done any work on a way to transfer a program from one rcx to another in the case of a battery failure, etc. instead of replacing the rcx in the robot with the other one. thanks (23 years ago, 7-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: exponents, e^
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i tried the lejos environment and found the exponent and trig functions worked very well. and they work with doubles. so if anyone is having trouble with using trig, log, exp functions in legOS, you might want to try lejos. plus it was easier to (...) (23 years ago, 7-Mar-02, to lugnet.robotics.rcx.legos)
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| | Problems RCX - Computer communication
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Hi, i'm trying to write a program that makes a Legoroboter able to navigate in different rooms / labyrints. For this the computer needs to know, when one of the touch-sensors is pressed. I use poll(9,x) for this. My problem is that the returned (...) (23 years ago, 7-Mar-02, to lugnet.robotics)
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| | Re: Single acting pneumatics with spring return
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(...) How coincidental, but it too struck me that we needed to backtrack as the thread was getting pretty muddled up. It seemed to me that we may not be working on the same assumptions. So here's the re-play... The post that you quoted (URL) in (...) (23 years ago, 7-Mar-02, to lugnet.technic, lugnet.robotics)
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| | Re: Firmware RIS2.0 Linux
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(...) That depends. If the .exe file is actually a self-extracting ZIP file, then "unzip" should be able to handle it, even on Linux. --Bill. (23 years ago, 7-Mar-02, to lugnet.robotics)
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| | Re: exponents, e^
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(...) Only one I can think of off-hand is support for the remote control, I've been thinking about looking at that if I can get some time (though it's still only a patch in legOS, have to do something about that, too). There may be others I don't (...) (23 years ago, 6-Mar-02, to lugnet.robotics.rcx.legos)
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| | Single acting pneumatics with spring return
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Hello again, I think I should have another go at this... I wanted to say "Check this out, I found an interesting application for the old pneumatic cylinders" What it came out sounding like was "Mr. Soh was wrong! Look at me prove him wrong!" Sorry (...) (23 years ago, 6-Mar-02, to lugnet.technic, lugnet.robotics)
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| | Re: LeJos threads / sleep() takes too long
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Hi Bart, (...) if you mean LISTENER_THREAD then that sounds plausible. (...) Yes, LISTENER_THREAD has maximum priority, so it runs before any threads of lower priority, even yield doesn't help. (...) Yes, I think we'll have to fix that somehow. (...) (23 years ago, 6-Mar-02, to lugnet.robotics.rcx.java)
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| | Re: ForthPad v0.9
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I'm re-posting this message at the lugnet.robotics.rcx level in case anyone missed it. I've put together a stand-alone application which I am calling ForthPad. It is a Windows executable which should run on any version of Windows from 95 on up. It (...) (23 years ago, 6-Mar-02, to lugnet.robotics.rcx)
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| | Re: ForthPad v0.9
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(...) The firmware downloader built into BricxCC is a port of Dave Baum's NQC code to Delphi. It calculates the checksum up to a length of 0x4C00. The limit of 0xCC00 is based on the sum of length + start (where start is = 0x800). John Hansen (23 years ago, 6-Mar-02, to lugnet.robotics.rcx.pbforth)
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| | Re: Pneumatics: the old and the new
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(...) And most other pneumatics systems do too, but its easier if you have a tank in which you have a high pressure (or a low pressure). (23 years ago, 6-Mar-02, to lugnet.technic, lugnet.robotics)
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| | Re: exponents, e^
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you know i was looking at lejos, java for RCX, and it seems to have exponents, trig, etc. functions built in. any advantages legOS has over lejos i don't know about. if not, i think i may give it a whirl.... -dave (...) (23 years ago, 6-Mar-02, to lugnet.robotics.rcx.legos)
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| | RE: ForthPad v0.9
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(...) Thanks John, I'll try this soon. You may want to post this to the next level higher to let other non-pbForthers see what you are up to. Does your alternative firmware loader take into account the limit at 0xCC00? If the replacement firmware (...) (23 years ago, 6-Mar-02, to lugnet.robotics.rcx.pbforth)
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| | Re: exponents, e^
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Dave I am working on a number of maths functions that includes loge log10 expe and exp10 x^y as well as trig functions. As you note it requires the specification of the mantassa and exponent desciption of the float variable for the RCX. Usually this (...) (23 years ago, 6-Mar-02, to lugnet.robotics.rcx.legos)
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| | LeJos threads / sleep() takes too long
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Experimenting with Lejos, two 'major' problems: memory (cleaning up platform & lang: Math.class is huge!) and... threads. I have the impression my "try { sleep(nnn) }" takes a somewhat arbitrary time. It's 'at least' nnn milisec, but often much (...) (23 years ago, 6-Mar-02, to lugnet.robotics.rcx.java)
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| | Re: Pneumatics: the old and the new
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(...) Hey, don't blame me if it should fall off though ;-) Speaking of wall climbing robots, does anyone have or seen one of these 4-legged Climb@Tron creatures shown at (URL) look kinda cute especially Vertibug. And at $14.95 each, they're a lot (...) (23 years ago, 6-Mar-02, to lugnet.technic, lugnet.robotics)
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| | Re: Pneumatics: the old and the new
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(...) Hi, those who have the old pneumatics and a couple of the blue air tanks may want to try the experimental setup at (URL) it! And I suspect the window walker critter would still work without the air tanks :-) (23 years ago, 6-Mar-02, to lugnet.technic, lugnet.robotics)
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