 | | broken "b" port on RCX 1.0
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ive had my mindstorms kit for a while but never have programmed with a computer....its been sitting in the closet for a while.....now when i have an inspiration to build something and take it out, i discover that the "b" port for the motor doesn't (...) (25 years ago, 28-Mar-00, to lugnet.robotics.rcx)
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| | RE: When the OS makes the difference
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(...) <snip> (...) Alternative firmware is crucial to developing high-performance bots. The core sampling rate of the RCX firmware is once every 3 msec, which is pretty fast. I'm not sure of the max rate that legOS allows. At that rate, the line is (...) (25 years ago, 27-Mar-00, to lugnet.robotics, lugnet.robotics.rcx.legos)
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| | RE: When the OS makes the difference
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(...) <snip> (...) Alternative firmware is crucial to developing high-performance bots. The core sampling rate of the RCX firmware is once every 3 msec, which is pretty fast. I'm not sure of the max rate that legOS allows. At that rate, the line is (...) (25 years ago, 27-Mar-00, to lugnet.robotics, lugnet.robotics.rcx.legos)
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| | Re: VB 6 subprocedure stumper
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Hi Kathy, No, Sub 0 shouldn't interfere with Task 0. If you want, you could e-mail me the code and I'll take a look at it. David Leeper (...) here: (...) program (...) (25 years ago, 27-Mar-00, to lugnet.robotics.rcx)
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| | Re: printing on more than one page
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The icons in Robolab have the program logic flow from left to right, with modifiers below each icon. This basic structure typically creates programs that are very wide, but not very long. If Robolab were changed so the icons would have program flow (...) (25 years ago, 27-Mar-00, to lugnet.robotics.rcx.robolab)
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| | Re: NQC 2.1 r2 released
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Oh yeah -- Dave, my packages contain a slightly updated version of the man page (version numbers in the examples have been updated). (25 years ago, 27-Mar-00, to lugnet.robotics.rcx.nqc)
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| | Re: NQC 2.1 r2 released
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(...) Ok, Linux packages/binaries for 2.1 r2 are now available at (URL). I'm really busy at work right now, so this was done kinda in a hurry :) I'm pretty sure that there's no problems, but please let me know if I missed something. Thanks! (25 years ago, 27-Mar-00, to lugnet.robotics.rcx.nqc)
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| | Re: VB 6 subprocedure stumper
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David: Thanks for the tips - I really appreciate any pointers/help I can get. Actually, if I abandon the idea of subprocedures and move the code within my main task, it runs just fine. However, the whole idea of this "lesson" is to use subprocedures (...) (25 years ago, 27-Mar-00, to lugnet.robotics.rcx)
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| | When the OS makes the difference
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Yesterday, Sunday 26th March, we had our 4th Italian Legofest. This time our traditional robotic contest was about line following, and 10 peopled compared their ideas, their knowledge and their ability running their robots for maximum speed on a 7m (...) (25 years ago, 27-Mar-00, to lugnet.robotics, lugnet.robotics.rcx.legos) !
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| | Re: VB 6 subprocedure stumper
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Hi Kathy, My first question would be "What are the values of CHECK_LEFT and CHECK_RIGHT?" If they're the same, that would produce the behavior you're getting. I know I often make a mistake like that when I copy and paste a line of code. You also may (...) (25 years ago, 27-Mar-00, to lugnet.robotics.rcx)
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| | VB 6 subprocedure stumper
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I sure could use some help. I'm trying to recreate the BugBot program from the book "Definitive Guide to Lego Mindstorms" in VB 6. It's a simple program with a tank-like robot that has two "feelers" - one if the robot hits something on the right; (...) (25 years ago, 27-Mar-00, to lugnet.robotics.rcx)
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| | Re: Battery life question
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(...) I measured the RCX consumes about 33mA in ROM or Lego Firmware, around 26.5mA under LegOS (due to the sleep instruction in the idle task), and it will use 0.034mA when turned off. No matter how long you sleep in your task, the RCX will consume (...) (25 years ago, 26-Mar-00, to lugnet.robotics.rcx.legos)
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| | Battery life question
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I searched through the archives and couldn't find anything that specifically addressed this question, so I figured I might as well ask. What would the expected battery life of the RCX be while simply sitting in a loop calling sleep with large (...) (25 years ago, 26-Mar-00, to lugnet.robotics.rcx.legos)
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| | Re: memcpy patch for gcc 2.95.2 wanted
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(...) I don't know if Markus would approve, but it might be worthwhile to do this and put it in to CVS so that 0.2.4(?) would be compilable with 2.95.x. Does anyone have the time/skill to do this? Markus? Your two cents? -Luis ###...### Profanity is (...) (25 years ago, 26-Mar-00, to lugnet.robotics.rcx.legos)
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| | Re: memcpy patch for gcc 2.95.2 wanted
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(...) IMHO it is better anyway to use pure assembly files when generating code like memcpy (which is completely in assembly here). Call them memcpy.S, and you won't have the problem of accidentially removing them. With this you can use 'c' style (...) (25 years ago, 26-Mar-00, to lugnet.robotics.rcx.legos)
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| | Object recognition
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Hi Does somebody have an experience with simple object recognition ( for example distinguishing between large obstacles and small objects using proximity detector )? I am currently experimenting with proximity detector based on 3 parallel light (...) (25 years ago, 26-Mar-00, to lugnet.robotics.rcx)
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| | Re: memcpy patch for gcc 2.95.2 wanted
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(...) Because there were some decisions made as to what "incorrect" macros were and weren't by the egcs/gcc teams. For some time, this made compiling the Linux kernel with the newest egcs a serious problem. (...) Cool. -Luis (...) ###...### (...) (25 years ago, 26-Mar-00, to lugnet.robotics.rcx.legos)
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| | Re: memcpy patch for gcc 2.95.2 wanted
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Les Smithson <lsmithso@hare.demon.co.uk> wrote in message news:Fs0v5B.J44@lugnet.com... (...) You saved me the trouble of posting the exact same fix. Thanks. I'm concerned there might be other problems caused by this bug. Fixing this routine treats (...) (25 years ago, 26-Mar-00, to lugnet.robotics.rcx.legos)
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| | Re: memcpy patch for gcc 2.95.2 wanted
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(...) I think the compiler was generating incorrect code. I'm no gcc expert, but the asm macros looked OK to me, and besides, why should the macro work in one compiler version & not the other? FYI, I fixed it by compiling the source to an assembler (...) (25 years ago, 26-Mar-00, to lugnet.robotics.rcx.legos)
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| | Re: NQC 2.1 r2 released
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(...) (25 years ago, 26-Mar-00, to lugnet.robotics.rcx.nqc)
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