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 Robotics / NXT / *948 (-40)
  Re: File Error - what does it exactly mean?
 
(...) Well, I try to allocate all memory available for one big array and then deal with it using my own memory manager with C-like calls of malloc and free. It works fine, but I'd need to know how big this one array I can make while the program (...) (17 years ago, 17-Aug-07, to lugnet.robotics.nxt)
 
  LEJOS OSEK giving me funky dll errors
 
I've installed LEJOS OSEK 1.04, but when I try to make all in the helloworld example, I get the error "This application has failed to start because cygintl-3.dll was not found. Re-installing the application may fix this problem." I've tried telling (...) (17 years ago, 17-Aug-07, to lugnet.robotics.nxt.nxthacking)
 
  Re: File Error - what does it exactly mean?
 
(...) You've got 32k to work with for all variables of all types, including user-defined types and arrays. Every time you manipulate an array you use up more memory due to copying taking place in the VM. If you shared with me some information about (...) (17 years ago, 17-Aug-07, to lugnet.robotics.nxt)
 
  Re: File Error - what does it exactly mean?
 
(...) But I am getting it when trying to allocate an array that is larger than the amount of heap available. And it seems there is no way of checking how much space remains free, so I have no way of preventing this File Error! from happening if I (...) (17 years ago, 17-Aug-07, to lugnet.robotics.nxt)
 
  Re: NXT R/C Car Drifting (NXT GT)
 
(...) You might try the wheels of these vehicles: (2 URLs) are made from hard plastic. Congratulations for your work! Philo (17 years ago, 17-Aug-07, to lugnet.robotics.nxt)
 
  NXT R/C Car Drifting (NXT GT)
 
Hi, I just uploaded a video of a NXT Bluetooth R/C Car which is called "NXT GT". I've found many NXT based cars (includes R/C or non R/C) and a uniquie point of NXT GT is that we succeeded to make the NXT GT Drifting! (URL) The trick of NXT GT (...) (17 years ago, 17-Aug-07, to lugnet.robotics.nxt)
 
  robotc documentation
 
While I'm waiting a login to the RobotC forum, I wonder if anyone knows where I can find documentation. I looked at the robotc forum. One developer said software guide will be ready not at a cost "up to the Sensing part"?? What does that mean (...) (17 years ago, 15-Aug-07, to lugnet.robotics.nxt)
 
  Re: Real C/C++ Programming Solution?
 
Takashi Chikamasa wrote: LEJOS OSEK also supports the program upload to Flash. However, I intentionally (...) As far as I know, this is from the manufacturers extreme limits of operation. I have personally cycled my NXT through a SAMBA load many (...) (17 years ago, 15-Aug-07, to lugnet.robotics.nxt.nxthacking)
 
  Re: Real C/C++ Programming Solution?
 
(...) LEJOS OSEK also supports the program upload to Flash. However, I intentionally do not describe it in the docs. I am not sure about the life cycle of Flash in the ATMEL ARM7 very well, however, some lugnet discussions told me that the lifecyle (...) (17 years ago, 15-Aug-07, to lugnet.robotics.nxt.nxthacking)
 
  Re: Mobile Phone for pbLua Development
 
(...) I finally loaded pbLua into a brick and tested it with PocketPuTTY, my normal SSH client and it works great! It comes with a BSD license so is free to use. (URL) I am using PocketPuTTY 2007-02-28 dev build for WM2003. This version added serial (...) (17 years ago, 13-Aug-07, to lugnet.robotics.nxt, FTX)
 
  NXTAssembler 1.0 Alpha 4 and site
 
Hi, I have released the Alpha 4 of NXTAssemlber project. It contains a bugs fix and a new feature. I hope that this version can be used because is near to the first beta version (I suppose two or one alpha version after this) And I have published (...) (17 years ago, 12-Aug-07, to lugnet.robotics.nxt)
 
  Re: Real C/C++ Programming Solution?
 
(...) The closed-loop features I'd like would be comparable to those implemented in the Charmed Labs Xport Botball Controller (see charmedlabs.com and botball.org) - PID control of velocity, with a "move to position" command and preferably (not (...) (17 years ago, 10-Aug-07, to lugnet.robotics.nxt.nxthacking)
 
  Re: NXT memory map
 
(...) Strange, for me it is always easy to find with Google: (URL) data sheet is here: (URL) Jürgen Stuber <juergen@jstuber.net> (URL) (17 years ago, 10-Aug-07, to lugnet.robotics.nxt.nxthacking)
 
  FW: RotateMotorEx hangs
 
Thank you to both John and Roger, I'll try it out later next week. --Elizabeth -----Original Message----- From: news-gateway@lugnet.com [mailto:news-gateway...ugnet.com] On Behalf Of John Hansen Sent: Wednesday, August 08, 2007 6:20 PM To: (...) (17 years ago, 9-Aug-07, to lugnet.robotics.nxt)
 
  Re: Mobile Phone for pbLua Development
 
(...) I'm not sure what operating system is on your Treo, but I am running vxHpc on my Dell Axim which runs Windows Mobile 5. Details on vxHpc are at (URL) and screen shots of my setup are at (URL) It really is nice to be able to program from a PDA. (...) (17 years ago, 9-Aug-07, to lugnet.robotics.nxt)
 
  Re: Real C/C++ Programming Solution?
 
(...) Actually, implementing a closed-loop motor control in LEJOS OSEK is not difficult. I already have done for NXTway-DS(complex state space feedback) and NXT GT(P control for motor rev. angle). A significant factor to implement a close-loop motor (...) (17 years ago, 8-Aug-07, to lugnet.robotics.nxt.nxthacking)
 
  Re: RotateMotorEx hangs
 
(...) <snipped> The RotateMotor call is designed to block. If you don't want to block then you can write code almost exactly like what Roger wrote in Java using other NXC API calls. Like so: #define UF_TLSM UF_UPDATE_TACHO_LIMI...PDATE_MODE #define (...) (17 years ago, 8-Aug-07, to lugnet.robotics.nxt)
 
  Re: RotateMotorEx hangs
 
(...) Hi Elizabeth: Here is how you could do it in Java: LightSensor eye = new LightSensor(SensorPort.S1); Motor.A.setSpeed(720); // 2 revolutions per second LCD.drawString("wait for dark",0,0); LCD.refresh(): Motor.A.rotate(3600,true); //rotate 10 (...) (17 years ago, 8-Aug-07, to lugnet.robotics.nxt)
 
  Re: Real C/C++ Programming Solution?
 
(...) Hmm, how hard would it be to just copy some of those functions from NXTGCC and use them in LEJOS OSEK? Would they require significant modification? Thanks, Jeremy Rand (17 years ago, 8-Aug-07, to lugnet.robotics.nxt.nxthacking)
 
  Re: Real C/C++ Programming Solution?
 
(...) Currently, LEJOS OSEK does not provide abstracted API such as you asked. I agree that LEJOS OSEK should provide more sophisticated API for ease of use. I hope someone will raise his/her hand to write such framework library. Sorry for your (...) (17 years ago, 7-Aug-07, to lugnet.robotics.nxt.nxthacking)
 
  Re: Mobile Phone for pbLua Development
 
(...) This is so cool that I want to find a terminal emulator for my Treo 650! Does anyone know of a free one I can use, or shareware that works well enough to pay for it? Cheers, Ralph (17 years ago, 7-Aug-07, to lugnet.robotics.nxt)
 
  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)
 
  Re: Mobile Phone for pbLua Development
 
(...) And now the pictures of this project WindowsMobile pbLuaConsole (URL) V2 with extensions like GPS and Highspeedconnector (URL) it Bye Christian (17 years ago, 7-Aug-07, to lugnet.robotics.nxt)
 
  Re: multiple-files projects in NBC
 
(...) The compiler line number error reporting problems are bugs. It should work properly for #included files but it does not currently do so. I will try to get that fixed once I get my book written. My deadline is fast approaching and I still have (...) (17 years ago, 7-Aug-07, to lugnet.robotics.nxt)
 
  Mobile Phone for pbLua Development
 
Hi, yes it is true, pbLua-Development can be done at WindowsMobileDevices... Mobile_with_terminal...ua_Console This works fantastic in the garden or at the beach :D Enjoy pbLua Features Bye Christian (17 years ago, 7-Aug-07, to lugnet.robotics.nxt)
 
  Re: Two NXT Back2Back
 
(...) ReHi, I'm building an external SD-Card-Interface for storing data, using RS485... NXT-->RS485-->AtMega...->SPI-->SD Next project is AVRCAM via RS485 :D Thanks for your response Bye Christian (17 years ago, 7-Aug-07, to lugnet.robotics.nxt)
 
  multiple-files projects in NBC
 
I might have missed this topic in the manual, but is there any support for splitting NBC project into several files? I know there is #include macro, but the problem is that the compiler then reports errors/warnings at lines relative to the merged (...) (17 years ago, 7-Aug-07, to lugnet.robotics.nxt)
 
  Re: Two NXT Back2Back
 
(...) I do not see how you could burn any parts or drivers. Even if both ports would be in active sensor mode and (obviously) out-of sync, the electronics that connects the port to ADC should handle that as normally the same pin is used to power up (...) (17 years ago, 7-Aug-07, to lugnet.robotics.nxt)
 
  Re: NXT memory map
 
(...) I found everything here (URL) not directly at Atmel... Christian (17 years ago, 7-Aug-07, to lugnet.robotics.nxt.nxthacking)
 
  Re: RotateMotorEx hangs
 
(...) The change I have made is to replace this: // Waits till angle reached index __rotate_firstPort0, __rotate_ports0, NA __rotate_Running0: getout __rotate_rs0, __rotate_firstPort0, RunState brcmp EQ, __rotate_Running0, __rotate_rs0, (...) (17 years ago, 6-Aug-07, to lugnet.robotics.nxt)
 
  RE: NRLink reading RCX response w/ RobotC
 
(...) Look at the file "RCX2 LASM Byte Codes" for a description of each of the available opcodes. Read (URL) coupled with the contents of my previous email. (...) No valid message starts with with 'opcode' byte of '00' or 'FF'. [Check out the above (...) (17 years ago, 3-Aug-07, to lugnet.robotics.nxt)
 
  NXT memory map
 
Hi, where can I get some more informations about NXT memory map when system is running ? 1. Startaddress of RAM (Range: 0x0000 0000 - 0x0000 FFFF) ??? 2. Startaddress of Flash (Range: 0x0001 0000 - 0x0003 FFFF) ??? Is it true, that the flashmemory (...) (17 years ago, 6-Aug-07, to lugnet.robotics.nxt.nxthacking)
 
  RE: RotateMotorEx hangs
 
As long as it will still retain the value of rotation count, it will be very useful. Otherwise, it will be bad! This will help in simulating an event driven instance. Do you see there is any down side of this implementation other than a few more (...) (17 years ago, 6-Aug-07, to lugnet.robotics.nxt)
 
  Re: RotateMotorEx hangs
 
(...) You asked for it, you got it. :-) John Hansen (17 years ago, 5-Aug-07, to lugnet.robotics.nxt)
 
  Two NXT Back2Back
 
Hello Community, can direct connection of two NXTs (port4) with normal Lego-cables damage any parts or drivers ? Normally I use a special cable (Pins 3,5,6) to use the RS485 communication to another NXT, but some guys told me, they have used the (...) (17 years ago, 5-Aug-07, to lugnet.robotics.nxt)
 
  RE: RotateMotorEx hangs
 
"... Maybe I could check that the power level is not equal to zero as well..." Good idea. Will be included in the coming release? --Elizabeth -----Original Message----- From: news-gateway@lugnet.com [mailto:news-gateway...ugnet.com] On Behalf Of (...) (17 years ago, 5-Aug-07, to lugnet.robotics.nxt)
 
  Re: File Error - what does it exactly mean?
 
(...) I would guess that 99% of the time that you get a File Error abend in an NXT program it is because of trying to access an element beyond the end of the array. I'm glad you were able to figure the problem out quickly. It would be nice if the (...) (17 years ago, 5-Aug-07, to lugnet.robotics.nxt)
 
  Re: NRLink reading RCX response
 
(...) Thanks for the recommendation John, I think we met in '99 at Mindfest at MIT, but I'm sure you met way too many to remember. I'm a long-time user of NQC and I evaluated NXC right after I got the NXT, along with RobotC. I've been focusing on (...) (17 years ago, 5-Aug-07, to lugnet.robotics.nxt)
 
  Re: File Error - what does it exactly mean?
 
(...) I have to answer myself after analyzing the reason. The error occured when trying to access elements of array outside of the initialized range. Glad to have resolved it. (17 years ago, 5-Aug-07, to lugnet.robotics.nxt)
 
  File Error - what does it exactly mean?
 
Hello, I have an NBC program which compiles fine and the previous versions of it were working as expected. After some minor modifications, the program is interrupted in the middle with a message "File Error!" shown on the LCD for a short momemnt and (...) (17 years ago, 5-Aug-07, to lugnet.robotics.nxt)


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