 | | Re: Alternate NXT-Firmware flashing tools
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Hi Christian, (...) if you have an endianness problem it should be visible. The easiest would be to compare it with a little-endian machine. (...) It uses the SAM-BA protocol, which is rather simple and without error checking, more like what a human (...) (17 years ago, 28-Jul-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: RotateMotor is stuck/nxc
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(...) Elizabeth, Could you upgrade to b31 of NXC and see if you still have this problem? You will need to update your TextOut call to put the "false" as the last parameter or leave it out altogether. TextOut(0, LCD_LINE2, "DONE ROTATE"); Also, could (...) (17 years ago, 27-Jul-07, to lugnet.robotics.nxt)
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| | RE: RotateMotor is stuck/nxc
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Just to clarify more although it probably is very clear to most... LEGS_TURNING_DEG = some int to indicate the turning degree MOVENOW & DONE contains different integer values --E -----Original Message----- From: news-gateway@lugnet.com (...) (17 years ago, 27-Jul-07, to lugnet.robotics.nxt)
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| | RotateMotor is stuck/nxc
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Symptom: Stuck in RotateMotor function call. ===...=== Synopsis of how to create the problem : - 2 tasks - Task1 handles motor A & C - Task2 handles motor B - Task1’s motor movements have to synchronize with the Task2’s motor B movement - Mutex is (...) (17 years ago, 27-Jul-07, to lugnet.robotics.nxt)
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| | Re: Alternate NXT-Firmware flashing tools
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(...) ReHi Jürgen, yes this is a trivial job, but what should I learn from this packets ? fwflash returns no error back to commandline ... Does this mean fwflash works blindly and returns no protocol or packet errors ? Why is the result "success" (...) (17 years ago, 26-Jul-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: Alternate NXT-Firmware flashing tools
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Hi Christian, (...) you could add some code in lowlevel.c to dump the USB packets, and then look if you see anything wrong. Jürgen (17 years ago, 26-Jul-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: Alternate NXT-Firmware flashing tools
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(...) Hi Jürgen, very good idea. Please give me some hints where to start. I haven't found any --verbose command line parameters, yet :D OK, I'm trying to read the source again, expecting ENDIAN problems like every time using PPC and SPARC :-D Bye (...) (17 years ago, 25-Jul-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: Alternate NXT-Firmware flashing tools
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Hi Christian, (...) how about trying to fix fwflash? Jürgen (17 years ago, 25-Jul-07, to lugnet.robotics.nxt.nxthacking)
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| | Re: stop task
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(...) It hasn't, Elizabeth - I'm not upset at John, and he knows *far* more about programming than I do. I just wanted to point out that there are process where abruptly "killing" a thread was one of the best solutions I ever found, due to the speed (...) (17 years ago, 25-Jul-07, to lugnet.robotics.nxt)
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| | Alternate NXT-Firmware flashing tools
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Hi NXT-Community, I'm searching for an alternate firmware flashing tool for the NXT... Using the Lego Mindstorms Software is an easy way to do this, but not available for my favorite operating systems. I've tried fwflash from libnxt, but without (...) (17 years ago, 25-Jul-07, to lugnet.robotics.nxt.nxthacking)
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| | RE: stop task
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Everyone, Being fair in the judgement in using a global watchdog flag to terminate a task. Honestly, when I have a multi-threaded process, I have always used a watchdog type of flag, mutex, semaphore, etc. to signal a thread to terminate. I hardly (...) (17 years ago, 25-Jul-07, to lugnet.robotics.nxt)
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| | Re: stop task
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(...) Well, you may not consider that awkward, but having been able to use the "stop" & "start" task commands in NQC, I do actually consider it very awkward. For instance, if I want to immediately stop some task under the "stock" FW... well, I (...) (17 years ago, 24-Jul-07, to lugnet.robotics.nxt)
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| | Re: stop task
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(...) It is not a rather awkward option, imho. That's like saying breaking out of an infinite loop using a flag is awkward and that it would be better to have some form of stop loop keyword that you could use from outside the loop instead. Is it (...) (17 years ago, 24-Jul-07, to lugnet.robotics.nxt)
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| | Re: stop task
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(...) Using a global to flag out of a task is about the only (rather awkward) option I know of. This is one of the things that I really have issues with under the NXT-G FW. (17 years ago, 24-Jul-07, to lugnet.robotics.nxt)
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| | stop task
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I just noticed that there is no function to terminate a task like nqc . "stop" . I am currently setting up a global watchdog variable to signal a task to exit. Suggestion? --Elizabeth (17 years ago, 24-Jul-07, to lugnet.robotics.nxt)
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| | Re: Temporarily removing official NXT driver to use SAM-BA
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FYI, just in case anyone has this problem in the future, I was able to fix it by using "Update Driver" in Device Manager while the NXT was in SAM-BA mode, and telling Windows that I would choose the driver. On the list were the Lego driver and the (...) (17 years ago, 23-Jul-07, to lugnet.robotics.nxt)
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| | Re: It says it is, but it ain't resetting
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Hi, (...) probably some problem with the USB data transfer on your computer, which corrupted the firmware. This seems to occur with some computers, LEGO put out a driver update last year to correct it: (URL) that the ticking sound doesn't (...) (17 years ago, 23-Jul-07, to lugnet.robotics.nxt)
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| | Re: It says it is, but it ain't resetting
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(...) I've resurrected the "dead" NXT using the standard procedures and my home computer. Perhaps, the computers in the lab where smarter than mine. Mine performed the download but froze up. I had to power down and reboot. All is fine now, though (...) (17 years ago, 23-Jul-07, to lugnet.robotics.nxt)
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| | Re: RCX Roverbot morphs to NXT
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(...) The kids in last weeks class got some track models started then they quit when the going got rough. After I finished my model, they realized how much slower tracks are versus wheels. They chose speedy wheels over tracks. It's going to be (...) (17 years ago, 22-Jul-07, to lugnet.robotics.nxt)
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| | Re: It says it is, but it ain't resetting
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(...) I'll try the Briccx and/or NeXTTool approach. Thanks (17 years ago, 22-Jul-07, to lugnet.robotics.nxt)
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