 | | Re: Brickworld Announcement - Area Attractions and baseball
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(...) Ok, thinking out loud now: Well, what about a home run derby or the like? Maybe a machine that pitches and a machine that hits... We could use those red and blue spheres that come with the nxt... Would ultrasonic sensor work for detecting the (...) (19 years ago, 15-Mar-07, to lugnet.events.brickworld, lugnet.robotics.nxt)
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| | Re: GCC vs. IAR compiler: Could GCC be tweaked to generate code as tight as IAR?
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(...) OK. This is good info!!! It is hard to guess that this was the way to do it. It also makes some sense for LEGO to use their file manager to do this rather than having a second tool replicate a filemanager on the host and insert it at compile (...) (19 years ago, 15-Mar-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: GCC vs. IAR compiler: Could GCC be tweaked to generate code as tight as IAR?
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(...) Hi Dick Swan, That is a nice flexible way of doing it. I will see if I can figure it out in gcc. Thanks for the idea. (...) Well...I have -=Os on, which are all size reducing features. The actual "problem" can also be this packed stuff that we (...) (19 years ago, 15-Mar-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: NeXT-A-Sketch - My second program/first Dave-built NXT 'bot(ish...)
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(...) Or do what I did. Change the program so you only have to tap the button to clear the screen so you can easily reset it while shaking upside down. (19 years ago, 15-Mar-07, to lugnet.org.ca.rtltoronto, lugnet.robotics.nxt)
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| | Re: GCC vs. IAR compiler: Could GCC be tweaked to generate code as tight as IAR?
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(...) LEGO is using a slightly older version of IAR Embedded Workbench. Maybe that explains it. Or maybe its a 1.03 vs 1.04 source code difference. (...) I have been told that the following is the standard operating procedure for generating the (...) (19 years ago, 15-Mar-07, to lugnet.robotics.nxt.nxthacking)
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| | RoboLab 2.9 Install on Server
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Has anyone had success in installing RoboLab on a server? After installing on a windows based server the message "visa32.dll is missing" occurs. Assuming RoboLab 2.9 can be run from a server are there any maximum user limitations? (19 years ago, 15-Mar-07, to lugnet.robotics.rcx.robolab)
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| | Re: GCC vs. IAR compiler: Could GCC be tweaked to generate code as tight as IAR?
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Regarrding overwriting the flash system. I encountered the problem of flash file system overwriting user code as well. It's because it is hard coded in the code the starting address of the file system. There's a constant named "STARTOFUSERFLASH" (...) (19 years ago, 14-Mar-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: GCC vs. IAR compiler: Could GCC be tweaked to generate code as tight as IAR?
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... (...) I have not done that. Well, just a little bit:-). The best one (not surprisingly) is the "-Os" optimization, which does this "Optimize for size. -Os enables all -O2 optimizations that do not typically increase code size." (...) I tried (...) (19 years ago, 14-Mar-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: GCC vs. IAR compiler: Could GCC be tweaked to generate code as tight as IAR?
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(...) I did not do so. The memory map in LEGO_MINDSTORMS_NXT_..._v1.03.bin is like this for the files: 0x11F000-0x12E99D Actual files like Demo.rxe 0x13FF00-0x13FF37 FILE_HANDLE(s) 0x13FFFC-0c13FFFF FILEVERSION The nxtgcc stuff compiles to 126176 (...) (19 years ago, 14-Mar-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: GCC vs. IAR compiler: Could GCC be tweaked to generate code as tight as IAR?
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(...) Have you experimented at all with the compiler optimisation flags? I don't know if all of them are supported for the ARM architecture, and some options cause problems on other architectures, but there's a bit of a list here: (URL) removing (...) (19 years ago, 14-Mar-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: Robot events at BrickFest 2007
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i just checked the schedule, looks like the Mosaic speed build ends at 12:30 and the sumo competition starts at 1pm. that gives me 30 minutes to get something built and programmed. you better bring your batteries, cause now i do have time to make (...) (19 years ago, 14-Mar-07, to lugnet.events.brickfest, lugnet.robotics)
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| | Re: GCC vs. IAR compiler: Could GCC be tweaked to generate code as tight as IAR?
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(...) More precisely, I was told to increase the STARTOFUSERFLASH value if I increased the firmware size beyond the current value. The unmodified source code compiles to 121324 bytes using the current evaluation version of the IAR Embedded Workbench (...) (19 years ago, 14-Mar-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: My first(ish) program
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(...) (URL) that I think you need to buy any more LEGO or anything... 8?) ROSCO (19 years ago, 14-Mar-07, to lugnet.org.ca.rtltoronto, lugnet.robotics.nxt)
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| | Re: GCC vs. IAR compiler: Could GCC be tweaked to generate code as tight as IAR?
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(...) Are you adjusting these values in d_loader.h? #define STARTOFFILETABLE (0x13FF00L) #define STARTOFUSERFLASH (0x11F000L) #define SIZEOFUSERFLASH (STARTOFFILETABLE - STARTOFUSERFLASH) I've been told by folks at LEGO that if I grow the size of (...) (19 years ago, 14-Mar-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: My first(ish) program
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(...) LOL... Hand eye coordination is a gift. Although, I'm not doing any better... I had the pleasure of playing Mr. Cowdice's rabbit game last friday, and scored a big fat -2. Dave, Im thinking you need to start scoring on the bell curve. Just saw (...) (19 years ago, 14-Mar-07, to lugnet.org.ca.rtltoronto, lugnet.robotics.nxt)
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| | Re: Robot events at BrickFest 2007
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(...) Sounds like a personal problem to me, Bob. I, on the other hand, can give my presentations, while building the Lego Star Destroyer entirely with my left hand, while my right hand programs my Sumo'Bot to destroy all who oppose me in the Sumo (...) (19 years ago, 14-Mar-07, to lugnet.events.brickfest, lugnet.robotics)
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| | Re: NBC NXT to NXT communication example
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(...) Works like a charm! Thank you Rainer (19 years ago, 14-Mar-07, to lugnet.robotics.nxt)
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| | GCC vs. IAR compiler: Could GCC be tweaked to generate code as tight as IAR?
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Hi, If I compile the LEGO firmware sources with gcc, the code size increases much beyond the 128 KB (which I think) the IAR compiled sources fits into. That means that one have to relocate part of the compiled code into the memory areas between (...) (19 years ago, 14-Mar-07, to lugnet.robotics.nxt.nxthacking)
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| | LEGO autopilot
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I saw this on Slashdot today: (URL) (19 years ago, 14-Mar-07, to lugnet.robotics.nxt)
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| | Re: NBC NXT to NXT communication example
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(...) The exact same code that Danny B includes in the NXC Tutorial should work fine when translated into NBC. I have not tested this yet but here is a quick conversion: //MASTER #include "NXTDefs.h" #define BT_CONN 1 #define INBOX 1 #define OUTBOX (...) (19 years ago, 14-Mar-07, to lugnet.robotics.nxt)
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