 | | Problems reading active sensors with legos? Is there a solution?
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I'm a bit confused with the reading of my light sensor with legOS. I'm getting values with a lot of "noise"... For example, reading the value for white, I'm getting values with a "noise" from 36 to 24 (raw) around the right value. Reading some post (...) (25 years ago, 30-Mar-00, to lugnet.robotics.rcx.legos)
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| | Installing LegOS -- compiler problems, SIGSEV
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i'm attempting to compile the latest egcs-1.1.2 on my Linux roswell 2.2.12 #10 SMP Thu Nov 11 13:28:14 CST 1999 i586 unknown machine; however, I hit a rather odd problem when trying to compile the attached section of the makefile. I get a signal 11 (...) (25 years ago, 29-Mar-00, to lugnet.robotics.rcx.legos)
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| | Re: When the OS makes the difference
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(...) path (...) 70cm/s (...) movie (...) one (...) rate. (...) pretty (...) line (...) not (...) sampling. (...) with (...) I guess you're right this time too :-) Thanks for having clarified the matter. (...) good (...) Paolo actually confessed he (...) (25 years ago, 28-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: 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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| | 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: 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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