 | | Re: Nxtcom error #89
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Here is a shameless plug for Java .... The Lejos_NXT software system (aka NXJ) runs its defrag program every time a file is deleted from the file system. And the start up menu also shows on the LCD the amount of free flash (which,of course, is (...) (17 years ago, 9-Mar-08, to lugnet.robotics.nxt)
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| | Re: step-by-step tutorial leJOS and Eclipse
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Hey, Due to a complete redesign of the website, the tutorial URL was changed to: (URL) (17 years ago, 9-Mar-08, to lugnet.robotics.nxt)
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| | Re: Nxtcom error #89
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(...) Unfortunately, the standard firmware does not expose the ability to iterate through the files in the file system. You can do that with the enhanced NBC/NXC firmware, but even then the information you can get about a file is just its name and (...) (17 years ago, 7-Mar-08, to lugnet.robotics.nxt)
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| | Re: Nxtcom error #89
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(...) Thanks, John -- this agrees with what Dave found as well. Makes sense. (...) Thanks again. What would be really neat is a utility that can draw a memory map, showing what is stored where. I haven't seen such a thing since my Apple II days, but (...) (17 years ago, 6-Mar-08, to lugnet.robotics.nxt)
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| | Re: Nxtcom error #89
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(...) According to the LEGO Mindstorms NXT Communication protocol.pdf that is part of the Bluetooth Developer Kit, your error code (89) means "No linear space". That means all the remaining space on your NXT is fragmented so there is not enough (...) (17 years ago, 6-Mar-08, to lugnet.robotics.nxt)
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| | Re: Nxtcom error #89
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OK, for the archives: I got an answer from Dave Baum (author of nxtcom). He says that error #89 indicates memory fragmentation -- even though my NXT had plenty of free RAM in total, there was no single contiguous block big enough to hold the new (...) (17 years ago, 6-Mar-08, to lugnet.robotics.nxt)
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| | Re: Nxtcom error #89
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To follow up my own post: I've since verified that I have 45K free on the NXT, and the file I'm installing is under 13K. I've also restarted both my Mac and my NXT, and still get that mysterious error 89. After more experimentation, it does appear (...) (17 years ago, 5-Mar-08, to lugnet.robotics.nxt)
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| | Nxtcom error #89
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I've been using the nxtcom utility to download NXC apps from my Mac. It was working fine just a few minutes ago, but all of a sudden (starting about 10 minutes ago) it's giving me a "NXT Error #89". I've searched the web and read the read-me, and (...) (17 years ago, 5-Mar-08, to lugnet.robotics.nxt)
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| | Re: new to nbc; invaders problem
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John, Ah. That works fine. I guess I was thinking the graphics data would be compiled into the binary, but the lack of a path in the filenames in the various include files should have given me a clue. -Tim (...) (17 years ago, 3-Mar-08, to lugnet.robotics)
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| | RE: Coming out of the dark ages...
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Interestingly, this exchange caused me to break out my own RCX 1.0 to do some experimentation. I was able to get the serial IR tower to work with Windows Vista Ultimate x64 by using the USB to serial cable from a Vex programming kit (it's actually a (...) (17 years ago, 3-Mar-08, to lugnet.robotics)
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| | Re: Coming out of the dark ages...
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You'll need to either get the RCX 2.0 software or use NQC. As far as I know no one has (yet) managed to use the IrDa port and I believe Vista doesn't support Serial ports... you might try a USB to Serial converter, but that doesn't always work. (...) (17 years ago, 3-Mar-08, to lugnet.robotics)
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| | Re: new to nbc; invaders problem
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(...) I will check into this when I get home this evening but I think your problem may be that BricxCC and NBC do not automatically download the .RIC files referenced in the program source code. Those must be downloaded manually, which you can (...) (17 years ago, 3-Mar-08, to lugnet.robotics.nxt, lugnet.robotics, FTX)
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| | Coming out of the dark ages...
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Hi, I am just coming out of my (second) 'dark ages', now that my kid has turned 5y and is starting to build LEGO, so I can get my LEGO out of the stores again... I didn't have the time yet to check all postings, but can someone quickly fill me in (...) (17 years ago, 3-Mar-08, to lugnet.robotics)
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| | new to nbc; invaders problem
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I'm just getting started with bricxcc (and winxp on my mac), so I'm hoping there's something painfully obvious I'm missing. I've compiled and run a few simple nbc and nxc programs (mostly from John's book), but invaders.nbc isn't working for me. I (...) (17 years ago, 2-Mar-08, to lugnet.robotics.nxt, lugnet.robotics, FTX)
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| | Re: Compass sensor with NXC
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(...) I emailed Karen with the solution to her problem. This can trip you up if you aren't careful. Drawing values to the screen can confuse you if you draw over the top of an existing number without clearing the screen first. John Hansen (17 years ago, 29-Feb-08, to lugnet.robotics.nxt)
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| | Re: Compass sensor with NXC
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(...) Hi John, We're using the HiTechnic sensor. I've contacted you directly with a copy of the program, and here it is if anyone else has an idea for us: task main() { SetSensorLowspeed(IN_2); int dir; ClearScreen (); TextOut (32, 48, "Heading:"); (...) (17 years ago, 28-Feb-08, to lugnet.robotics.nxt)
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| | Re: Compass sensor with NXC
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(...) Which compass sensor are you using, the HiTechnic one or the Mindsensors one? Are you using a low level API function to read its value or are you using one of the newer API functions specific to the compass sensor? Can you email me your (...) (17 years ago, 28-Feb-08, to lugnet.robotics.nxt)
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| | Compass sensor with NXC
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Hello, I coach a Robofest high school team, and we're using two NXT robots for the current challenge, programmed with NXC. We've been having a problem using the Compass sensor with NXC. If I use the view function on the brick (selecting Ultrsonic (...) (17 years ago, 28-Feb-08, to lugnet.robotics.nxt)
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| | Re: What should happen with the lugnet.robotics.nxt sidebar?
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(...) Yes. (...) Links to relevant forums, community projects, NXT MOCs, tips and tricks. (...) Yes, as a chronological, easy to view, list of recent newsgroup user NXT creations. (...) Cool NXT MOCs. (...) The "Recent Items of Interest" should (...) (17 years ago, 27-Feb-08, to lugnet.robotics.nxt)
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| | Re: End effector that can "feel"
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Hi, this is a very good solution! I really like the way this is done, even if it uses 2 sensor ports. The use of the double gear boxes to close the fingers at the same time is very nice! Really great work, excellent end effector solution. Eric (...) (17 years ago, 27-Feb-08, to lugnet.technic, lugnet.robotics)
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