 | | Re: Is there a NQC HowTo out there someplace?
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"Jeff Merrick" <jeffmerrick@gmx.net> wrote in message news:H9p6GK.1ou@lugnet.com... (...) need (...) Jonathan (...) to (...) book; (...) I will have a look at the tutorial from Mark Overmars site. But I've got a "Teach yourself C in 21 days" by (...) (22 years ago, 2-Feb-03, to lugnet.robotics.rcx.nqc)
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| | Re: IR header how optional -- And Infrared "Warm Up"
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Regarding "Henrik Erlandsson" <e.henrik@telia.com> wrote in message news:H9orqL.M9v@lugnet.com.. and others about "warming up" the serial infra-red link electronics. (...) the web (...) does, and if (...) both. (...) I believe the "warm up" concept (...) (22 years ago, 3-Feb-03, to lugnet.robotics.rcx)
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| | Re: IR header - A Detailed Explanation
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Several posts have speculated about the use and necessity of the "header" bytes used by standard RCX messaging. Hopefully this post provides definitive information on the topic. The ROM firmware uses a 30 milli-second inter-character timer. If if is (...) (22 years ago, 3-Feb-03, to lugnet.robotics.rcx)
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| | Re: IR header how optional
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(...) see ... (...) require (...) That's very interesting. And, I've managed to get replies to "headerless" packets as you describe, however... (...) with (...) I still don't see any response to 0x10 0xFE 0x10 0xFE. The even bytes (0xFE) are not the (...) (22 years ago, 2-Feb-03, to lugnet.robotics.rcx)
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| | Re: Problems with NQC and math operations
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Dean, Well, that was the problem...changing the 10000 to 100 makes me get a value back, however I think the error is too big for the robots to navigate effectively..I'll probably have to learn legOS so I can use floating-point and get more precise (...) (22 years ago, 2-Feb-03, to lugnet.robotics.rcx.nqc)
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| | Re: now normally baumfamily != enteract
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(...) Email to update crynwyr? Yes I hope so, yes I've tried, yes we're staying tuned, sorry I was unclear, that's what I meant when I mentioned I had seen a mailto channel work there before. But Lego I don't know how to reach. Do you mean to say (...) (22 years ago, 2-Feb-03, to lugnet.robotics.rcx.nqc)
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| | Re: Is there a NQC HowTo out there someplace?
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I was in the same situation as you when I started out with NQC and I found the following resources helpful... Programming Lego Robots using NQC by Mark Overmars is a good tutorial...I probably used it the most to learn the basics of NQC... (...) (22 years ago, 2-Feb-03, to lugnet.robotics.rcx.nqc)
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| | Re: IR header how optional
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(...) Whether serial transmission is as simple as start:data:parity:stop repeated, or not, I still have no idea. But I'm posting again to say in those calculations I was off a whole order of magnitude, sorry. I imagine the calculator I used reported (...) (22 years ago, 2-Feb-03, to lugnet.robotics.rcx)
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| | Re: now normally baumfamily != enteract
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(...) Email them perhaps? (22 years ago, 2-Feb-03, to lugnet.robotics.rcx.nqc)
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| | Re: Problems with NQC and math operations
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Jeff, Your problem is with the 16 bit integer size that NQC uses. All integers are in the range -32768 to 32767. Using 10000 to simulate fixed point math operations is killing you. Everything works when you replace theta and D with constants because (...) (22 years ago, 2-Feb-03, to lugnet.robotics.rcx.nqc)
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