 | | Two dimensional arrays in NXC
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Hello, I'm trying to use two dimensional arrays in NXC, like this: int onedarray[4]; int twodarray[4][4]; task main() { onedarray[2] = 1; twodarray[2][2] = 1; } I read that the stock firmware doesn't support them, so I got John Hansen's enhanced (...) (16 years ago, 29-Mar-08, to lugnet.robotics.nxt)
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| | light active mode vs inactive mode
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I am attempting to turn the reflective light on and off periodically. It works fine in RobotC. However, in Robolab, once it is turned off (via the robolab light sensor initialization - set the light on to "false"), it won't turn on again during (...) (16 years ago, 16-Mar-08, to lugnet.robotics.nxt)
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| | Using PF modes with mindsensors NRLink device
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Hi all, I am trying to use the different PF modes (PWM for instance) with my mindsensors NRLink. I tried adding new macros to PF.txt file without any sucess. This is the file I used. I updated this macro file in my NRLink with NXT-G and afterwars I (...) (16 years ago, 14-Mar-08, to lugnet.robotics.nxt, lugnet.robotics)
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| | motor port splitter?
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Looks like only Mindsensor provides port splitter for nxt motors. Unfortunately, this splitter will not allow independent control. I had this application which requires ita port to be attached to one NXT motor, and one RCX lamp (while the other two (...) (16 years ago, 10-Mar-08, to lugnet.robotics.nxt)
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| | 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 (...) (16 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) (16 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 (...) (16 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 (...) (16 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 (...) (16 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 (...) (16 years ago, 6-Mar-08, to lugnet.robotics.nxt)
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