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  RE: ARM Assembly Language Programming on NXT?
 
Do a Google on "LEJOS OSEK". I believe this is a solution that has taken the base "OS" from the NXJ JAVA byte code interpreter as the basis for programming the NXT using GCC C++. I assume if you can use the GCC C/C++ tools with the NXT then you (...) (17 years ago, 8-Oct-07, to lugnet.robotics.nxt.nxthacking)
 

firmware
(score: 0.750)

  Re: The Future of Trains
 
(...) Stalled, the train motor pulls 950 mA, while the stall current of the NXT motor is a whopping 2 Amps. So a single NXT motor output should easily handle a twin-engine train loaded to the point where it stalls the engine(s)... there's the matter (...) (17 years ago, 7-Oct-07, to lugnet.lego, lugnet.robotics.nxt)
 

firmware
(score: 0.750)

  NXT-G/ROBOTC Firmware Scheduler and Clump Priority
 
In a typical operating system (OS), tasks are scheduled on a priority basis. The highest priority task always executes ahead of lower priority tasks. If there are multiple tasks at the highest priority, then they are typically executed in a round (...) (17 years ago, 6-Sep-07, to lugnet.robotics.nxt)
 

firmware
(score: 0.747)

  RE: Ooops! NXT Software Comparison correction / I2C Messaging Speed
 
(...) Nobody cheated or is dishonest. Everyone who writes firmware for the NXT is well-intentioned "good" people. Let's not mislabel good modern programming practice -- i.e. hardware device drivers integrated into the low-level firmware -- as (...) (17 years ago, 6-Sep-07, to lugnet.robotics.nxt)
 

firmware
(score: 0.747)

  Re: Service pack 5111 - Wires - no longer available
 
(...) at (...) matter (...) Huh? Say I only use AA batteries (1.5V) How will I use the same number of batteries for a 4.5V, a 9V, and a 12V system? You need more batteries to get the higher voltage (or a step-up transformer to raise the voltage, but (...) (22 years ago, 2-Sep-02, to lugnet.robotics)
 

mindstorms, firmware
(score: 0.747)

  RE: Ooops! NXT Software Comparison correction / I2C Messaging Speed
 
(...) I wasn't aware of this firmware limitation. I could not duplicate it when using the ROBOTC firmware. I've done three different test runs of 500K messages each with perfect results each time. Each test run used a different sensor. The delay (...) (17 years ago, 5-Sep-07, to lugnet.robotics.nxt)
 

firmware
(score: 0.746)

  RE: NXT-G/ROBOTC Firmware Scheduler and Clump Priority
 
Holy cow! This is fun to read... I wish I have the time to further discuss this regarding the events handling with nxt. Follow up later. Thanks for such detailed info. --Elizabeth -----Original Message----- From: news-gateway@lugnet.com (...) (17 years ago, 7-Sep-07, to lugnet.robotics.nxt)
 

firmware
(score: 0.746)

  Re: NXT-G/ROBOTC Firmware Scheduler and Clump Priority
 
Wow! Very interesting posting. Thanks for revealing that, Dick! Zitat von Dick Swan <dickswan@sbcglobal.net>: (...) ---...--- This message was sent using IMP, the Internet Messaging Program. (17 years ago, 6-Sep-07, to lugnet.robotics.nxt)
 

firmware
(score: 0.746)

  Re: The standard NXT firmware & the case of the missing opcodes
 
(...) Could you, please, confirm, that the latest version of NBC then translates the following two commands with three arguments listed in the NBC manual: shr shl to the correct new opcodes of the enhanced firmware (depending on the type of the (...) (17 years ago, 30-Aug-07, to lugnet.robotics.nxt.nxthacking)
 

firmware
(score: 0.745)

  Re: Ooops! NXT Software Comparison correction / I2C Messaging Speed
 
Hi Dick, (...) actually I2C runs at something close to 12kHz in the LEGO firmware (I forgot the exact value). Jürgen (17 years ago, 5-Sep-07, to lugnet.robotics.nxt)
 

firmware
(score: 0.745)

  RE: Ooops! NXT Software Comparison correction
 
(...) After tuning, NBC achieved 73K test cycles. It achieved these great results by setting the task "priority" to 200. Unfortunately, unless the NXT-G task scheduler has been rewritten, these results might be a little too high. A NXT-G task (or (...) (17 years ago, 6-Sep-07, to lugnet.robotics.nxt)
 

firmware
(score: 0.745)

  Re: Ooops! NXT Software Comparison correction / I2C Messaging Speed
 
(...) The errors that occur are that the sensor does not properly report variable distances as it is positioned at varying distances from an obstacle. If you slow down the read rate then it works correctly (i.e., with a wait of ~15 ms between read (...) (17 years ago, 5-Sep-07, to lugnet.robotics.nxt)
 

firmware
(score: 0.744)

  Re: Ooops! NXT Software Comparison correction
 
(...) Nearly all of the speed test numbers on Steve's page are wrong. That's because Steve's loop boils down to "how fast can you reliably read the LEGO Ultrasonic Sensor". You can't reliably read a value from that device faster than about once (...) (17 years ago, 2-Sep-07, to lugnet.robotics.nxt)
 

firmware
(score: 0.744)

  Re: The standard NXT firmware & the case of the missing opcodes
 
(...) If you download the test_release.zip that I uploaded late last night you will be able to use these new opcodes (after installing the enhanced firmware in lms_arm_jch.zip) in both NBC and NXC programs. Here is some sample NXC code: task goofy() (...) (17 years ago, 23-Aug-07, to lugnet.robotics.nxt.nxthacking)
 

firmware
(score: 0.744)

  Re: The standard NXT firmware & the case of the missing opcodes
 
(...) I don't think I ever got around to mentioning this here, but a long time ago I implemented all of the above opcodes in my NBC/NXC enhanced standard NXT firmware. I implemented all of the shift opcodes so that they take 3 parameters rather than (...) (17 years ago, 22-Aug-07, to lugnet.robotics.nxt.nxthacking)
 

firmware
(score: 0.744)

  RE: pbLua Beta 13c Team Hassenplug NXT Software Comparison Results
 
(...) These numbers are quite good. pbLUA is fast. Walt: thanks for doing the analysis. Now that NXT-G 1.1 is out, I wonder how fast it runs. Faster execution performance was one of the features in this release. Perhaps someone can do this (...) (17 years ago, 30-Aug-07, to lugnet.robotics.nxt)
 

firmware
(score: 0.744)

  Re: Newbie Q's about development environments
 
(...) NXC provides all the features available to you in NXT-G, including all the items you mention, plus many that you cannot access in that programming language. It is freely available and it targets the standard NXT firmware. John Hansen (17 years ago, 23-Aug-07, to lugnet.robotics.nxt)
 

firmware
(score: 0.742)

  RE: Newbie Q's about development environments
 
If you go to Steve Hassenplug's site ((URL) you'll find a comparison of the various text based programming environments including NXC, ROBOTC, LUA, and JAVA. These solutions are all virtual machine based. ROBOTC has the fastest execution speed of (...) (17 years ago, 23-Aug-07, to lugnet.robotics.nxt)
 

firmware
(score: 0.742)

  Re: stop task
 
(...) 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)
 

firmware
(score: 0.741)

  Real C/C++ Programming Solution?
 
Is there a programming solution for the NXT that will allow me to use real C/C++? I've been trying to use NXTGCC (this is for firmware development based on an existing firmware for another controller, which is written in C/C++), but the code seems (...) (17 years ago, 7-Aug-07, to lugnet.robotics.nxt.nxthacking)
 

firmware
(score: 0.741)

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