Results 821 – 840 of about 14000.
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 | | Re: time sampling under the rcx standard OS
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| (...) From what I've seen, the standard firmware takes about 3ms per command, and the same program will run on BrickOS about 100 times faster. I usually set up my BrickOS programs so they use the internal timer, and only update the motor setting (...) (19 years ago, 17-Sep-05, to lugnet.robotics.rcx.nqc)
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firmware
(score: 0.626)
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| | RE: time sampling under the rcx standard OS
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| Here are some comments on how to improve your code for real-time performance. 1. Move the "SetUserDisplay" out of the loop and put it just before the loop. 2. I think the "OnFwd" macro is actually two instructions: "Fwd" and then "On". Replace this (...) (19 years ago, 17-Sep-05, to lugnet.robotics.rcx.nqc)
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firmware
(score: 0.626)
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| | Re: time sampling under the rcx standard OS
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| (...) Francois, I think you should be able to get much faster sampling. I can easily get 10-20 Hz, and others have claimed to get down to 3 ms. Whether it can be done at a constant rate, I'm not sure, and think it probably depends on what else is in (...) (19 years ago, 17-Sep-05, to lugnet.robotics.rcx.nqc)
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firmware
(score: 0.626)
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| | Re: time sampling under the rcx standard OS
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| Thank you Matt, the RCX loops much faster with your advices : about 10 loops per second. But as this frequency depends on the calculations included in the loop, I’m afraid this will not be enough. So I tried to download (URL) but it just appears as (...) (19 years ago, 18-Sep-05, to lugnet.robotics.rcx.nqc)
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firmware
(score: 0.626)
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firmware
(score: 0.626)
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| | RE: RCX to RCX NQC
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| There's another little problem that you may need to program around. There's a bug in the ROM firmware that could end up requiring a 30-millisecond delay between when a RCX sends out a message and when you should start sending the first character of (...) (19 years ago, 15-Sep-05, to lugnet.robotics.rcx)
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firmware
(score: 0.625)
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| | RE: RCX to RCX NQC
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| The message "toggle" bit was a good concept that has very limited value in practical use. I guess the intent was to prevent unexpected behavior when a PC program attempts retransmission after a message failure. Suppose the failure condition was that (...) (19 years ago, 15-Sep-05, to lugnet.robotics.rcx)
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firmware
(score: 0.625)
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firmware
(score: 0.625)
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firmware
(score: 0.625)
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| | RCX to RCX NQC
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| In a semi-followup to Steve's earlier "remote battery tester"... While the standard firmware provides almost no way to get bytes into the RCX (other than "Message()", one byte at a time), it can certainly export them ("SendSerial"). And it occured (...) (19 years ago, 13-Sep-05, to lugnet.robotics.rcx)
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firmware
(score: 0.625)
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| | Re: 1.0 brick not responding
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| (...) Yes, it flashes. (...) Yes it did work, but it's been in storage for a couple of years. (...) At this point, just download firmware. Once I get the communication issues resolved, I'll do programming. (...) (19 years ago, 13-Sep-05, to lugnet.robotics.rcx)
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firmware
(score: 0.625)
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| | Re: 1.0 brick not responding
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| (...) Powerbook 5300 with MacNQC: After about 4 seconds "No response or bad response from RCX. Make sure the RCX's receiver is facing the IR device and the RCX is turned on." Palm 130 with PBrick Demo: play sound 1, play sound 2, and play sound 3 (...) (19 years ago, 14-Sep-05, to lugnet.robotics.rcx)
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firmware
(score: 0.625)
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| | Re: 1.0 brick not responding
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| (...) Generally, that means the IR tower is working. It's possible the tower has become broken, while it sat in a closet, but that's not very likely. So, knowing things worked before, you may be forgetting something. Make sure the memory is cleared. (...) (19 years ago, 13-Sep-05, to lugnet.robotics.rcx)
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firmware
(score: 0.625)
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| | Re: startup questions RIS 2.0
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| Okay - when I got my first serial based RCX tower, I had no issues with Win2k, but with the USB device, it is really a matter of the drivers. If you have got it working with the current drivers, then you will be fine. On the supplied disks, there (...) (19 years ago, 13-Sep-05, to lugnet.robotics)
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firmware
(score: 0.625)
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firmware
(score: 0.625)
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| | Re: Battery voltage
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| (...) I don't have a problem doing that, however, I suspect very few people will find it useful. First, most people who understand how to use the code, won't have a use for it. (don't need to talk to RCXs with standard firmware) Second, most people (...) (19 years ago, 8-Sep-05, to lugnet.org.us.laflrc)
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firmware
(score: 0.625)
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| | Re: 1.0 brick not responding
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| (...) Tammy, A couple questions... 1) Does the light on the IR tower flash when you're trying to communicate? 2) Did it ever work (did it work before, but stop, or is this the first time you've tried communicating?) 3) What are you trying to (...) (19 years ago, 12-Sep-05, to lugnet.robotics.rcx)
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firmware
(score: 0.625)
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firmware
(score: 0.625)
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| | Bad Rcx's or bad ir
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| I believe that i have a dead rcx, or a problem w/ the ir transmitter (doubtfull). I have a Lego Mindstorms Robotics Invention System 1.5, and have succesfully installed the firmware using the cd given along with the set. But when i try to download (...) (23 years ago, 20-Jun-01, to lugnet.robotics, lugnet.robotics.rcx)
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mindstorms, firmware
(score: 0.625)
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| | Re: Mindstorms su Dev
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| (...) Mi son procurato la rivista qui in azienda e ho letto gli articoli. Mi sono fermato alla programmazione in Forth e ovviamente non ho nemmeno cominciato a leggere l'articolo riguardante legOS, per ovvi limiti di conoscenza ed esperienze finora (...) (23 years ago, 12-Jun-01, to lugnet.loc.it)
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mindstorms, firmware
(score: 0.624)
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