 | | Re: My problems with adding a Best Fit algorithm for memory management to kernel/mm.c
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(...) Fine. Could you please post the solution? I don't like unsolved riddles :) Regards, Michael (22 years ago, 6-Dec-03, to lugnet.robotics.rcx.legos)
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| | Re: Complete instructions for Linux?
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(...) Rich, Those patches were created for optimizing some legOS code. I believe it was some interupt code. The legOS code and brickOS code have internal work arounds. I have some emails concerning this somewhere. But you don't need these patches (...) (22 years ago, 6-Dec-03, to lugnet.robotics.rcx.legos)
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| | Re: Complete instructions for Linux?
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From: Rich Warren <rikiwarren@mac.com> Subject: Re: Complete instructions for Linux? Date: December 5, 2003 6:57:12 PM MST To: nanobapt <nanobapt@wanadoo.fr> (...) Correct me if I'm wrong, but my understanding is that this would build the BrickOS (...) (22 years ago, 6-Dec-03, to lugnet.robotics.rcx.legos)
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| | Re: My problems with adding a Best Fit algorithm for memory management to kernel/mm.c
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Nevermind, I figured out the error after I posted and reviewed my code again. Thanks anyway... (22 years ago, 6-Dec-03, to lugnet.robotics.rcx.legos)
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| | My problems with adding a Best Fit algorithm for memory management to kernel/mm.c
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Well, my senior project is almost due (Monday) and I am having problems with one of the last algorithms to be added. My senior project is adding the 3 other algorithms to the memory management facitlity (mm.c), the algorithsm are best, worst, and (...) (22 years ago, 6-Dec-03, to lugnet.robotics.rcx.legos)
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| | Re: Bump switches and "aggression"
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"Russell C. Brown [RR-1]" <lego-robotics@crynwr.com> wrote in message news:001601c3baeb$9a...apophis... (...) ok :) you are right i was too touchy sorry the threshold's set no problem some of you guys said many great words to me that is precious! (...) (22 years ago, 5-Dec-03, to lugnet.robotics)
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| | RE: Bump switches and "aggression"
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Just set the threshold on your pretentiometer to 50% and you won't hear that traffic anymore! Seriously, Pixel, you have been a cheerful contributor to this list for a couple of years now. You've had creative ideas that you've been most willing to (...) (22 years ago, 5-Dec-03, to lugnet.robotics)
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| | RE: Bump switches and "aggression"
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(...) Creatures (animals and humans) do not scatter in a totally random direction. They scatter at a random vector in a direction opposite the source of whatever startled. That implies that more than one sense is being used to determine source (...) (22 years ago, 5-Dec-03, to lugnet.robotics)
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| | Re: an idea, can someone tell me if this is possible/been done before/etc?
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(...) Yes, I understand that you would have the downward pressure of the step move stop the leg movement by cutting off pressure to the piston(s) driving the foot down. Once this pressure is cut off by the switch, presumably the other legs continue (...) (22 years ago, 4-Dec-03, to lugnet.robotics)
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| | Re: Bump switches and "aggression"
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(...) Easy the bump switch jumps into a RNG, and it's important to understand that the output of a RNG does -not- need to be equi-probable, and it decides. Watch animals when they're startled, they don't stop and think, they jump around for a second (...) (22 years ago, 3-Dec-03, to lugnet.robotics)
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| | Re: Complete instructions for Linux?
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(...) $ tar xvzf brickos.tar.gz $ make or $ apt-get install brickos #for debian user ;-) nanobapt (22 years ago, 4-Dec-03, to lugnet.robotics.rcx.legos)
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| | Re: Search algorithms
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The main problem is of course memory. Under standard firmware, with 32 variables, you're not going to be able to do an A* on much of a grid - 7x7 is about the max, and even then you'd have to fiddle around and store two cells values in a single (...) (22 years ago, 4-Dec-03, to lugnet.robotics)
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| | Re: Bump switches and "aggression"
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"Gordon Elliott" <lego-robotics@crynwr.com> wrote in message news:0f7901c3b9c8$84...gateway... (...) i can see jim's doing good job !!! he's humiliating almost everyone here keep doing jim!!! maybe you will achieve that your posts will go to null (...) (22 years ago, 4-Dec-03, to lugnet.robotics)
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| | Re: Bump switches and "aggression"
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(...) That's nonsense! You are working on the very naive assumption that nothing in the environment is moving except your robot. If your strategy is to reverse direction when the robot bumps into something in *any* direction - then things will go (...) (22 years ago, 4-Dec-03, to lugnet.robotics)
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| | Complete instructions for Linux?
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Is there a complete instruction for installing BrickOS on Linux? I'm particularly interested in details involving creating a cross-compiler and getting the USB tower to work. I've looked at the windows instructions, and have tried to work from them, (...) (22 years ago, 4-Dec-03, to lugnet.robotics.rcx.legos)
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| | Bump switches and "aggression"
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To my thinking there are two approaches to this, really two levels of difficulty, - Make it deterministic, in that if a switch is bumped invert your current trajectory axis, if going forward then reverse, if going R then go L. - Make it more (...) (22 years ago, 3-Dec-03, to lugnet.robotics)
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| | RE: Bump switches and "aggression"
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(...) <SNIP> (...) I think that your example indirectly shows that there are two things to be aware of. Survival is one. Obstacle detection/avoidance is the other. In thinking about it, I can see where there is a fine line between the two. Consider (...) (22 years ago, 3-Dec-03, to lugnet.robotics)
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| | Re: an idea, can someone tell me if this is possible/been done before/etc?
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(...) So the pneumatic switch acts as a pneumatic touch sensor and stops the leg from extending fully. I'll keep that in mind. (...) I understand. Thanks for the explanation. (...) Kevin (22 years ago, 3-Dec-03, to lugnet.robotics)
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| | Re: Bump switches and "aggression"
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(...) Oh I wish I had some of those touch sensors! One person from rtlToronto has a set and there is much envy from me to him. Right now I'm using lamp bricks, which isn't that great, really, but does work :) Thanks for the heads-up! Dave K (...) (22 years ago, 3-Dec-03, to lugnet.robotics)
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| | Re: Bump switches and "aggression"
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(...) go (...) 'bumper'. (...) my (...) me, (...) alternative. (...) There is one solution for staying 100% Lego and putting 4 sensors on the same RCX input. Therefor you should be able to sense which direction you were getting bumped. Lego made (...) (22 years ago, 3-Dec-03, to lugnet.robotics)
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