Lawrie - Thanks for the great explanation. Can you answer a follow up question?
http://nxt.natulte.net/trac/wiki/ElectricStorm I believe lejos uses code from that project. Can you explain what the firmware lock bits are? Does that mean if I upload a new firmware too many times, my Nxt will break? If the firmware can only be flashed so many times, is that why NXJ isn't being put into firmware yet? Thanks, Aaron R> On 3/1/07, Lawrie Griffiths <[EMAIL PROTECTED]> wrote: > Aaron, > > Yes, that is meant to happen. > > Lejos NXJ currently runs in RAM and does not download its own flash > firmware. It leave the NXT in firmware update mode running SAMBA, the > built-in boot assistant. It needs to restart SAMBA after each program run, > and shutting down the NXT after 5 seconds is the easiest way to do this. > > A future version will be a real flash firmware version and will not behave > like this. The next alpha version is likely to add the functionality that is > in the development version, but still use SAMBA. We need to implement USB, a > file system, a menu system and a few other things before we release a flash > firmware version. > > Lawrie > > ----- Original Message ----- > From: "DrAnonymous" <[EMAIL PROTECTED]> > To: "Roger Glassey" <[EMAIL PROTECTED]> > Cc: <[email protected]> > Sent: Thursday, March 01, 2007 2:42 AM > Subject: Re: [Lejos-discussion] Is this list active - NXT > > > > Thanks for the great info. :) > > > > Where would be the best place to ask about OSX support? > > > > I have a Mac and compiled NXJ without too much of an issue. When I > > ran a few of the sample programs, they seemed to run, but then the > > brick shut off after a few seconds. When I turned it back on, it went > > into firmware update mode. Is that supposed to happen? > > > > Thanks, > > Aaron R> > > > > > > On 2/28/07, Roger Glassey <[EMAIL PROTECTED]> wrote: > >> > >> Juergen wrote: > >> > Maybe we should have some regular progress report about > >> > Lejos on the NXT? > >> OK - here is a start: > >> > >> Lejos NXJ (a very preliminary alpha version) can be downloaded from > >> http://lejos.sourceforge.net/ > >> As of 28 Feb, the development version (not yet available for download, > >> but perhaps soon) has all the basic capabilities of Lejos for the RXC > >> except for the communications. The Sound class can play tones, the > >> LCD can print text and integers and also draw lines and circles. All > >> the Sensors classes produce useful data: Light, Touch, Sound, > >> UltraSonic, and Compass. The Motor class incorporates its rotation > >> sensor. It is actually a servo class: can accurately control speed (in > >> degrees/sec), and rotate the motor to a specified angle with an > >> accuracy of better than +- 2 deg. The Motor class stops smoothly > >> (without the overshoot and back up that the Lego firmware exhibits), > >> and accelerates smoothly so wheels do not skid. A new class Pilot > >> controls vehicle movement: direction, speed, and turning rate (if the > >> vehicle has uses differential steering of two motors) and movement > >> distance (linear and angular). The Navigator class, in addition to > >> everything the Lejos Navigator does, can control the robot travel in a > >> circular arc and keep track of its position and heading angle as it > >> does. > >> Some progress on the Bluetooth communications front has begun. > >> (Bluetooth is much more complicated than the RCX IR) We still do not > >> have anything like an operating system. A program downloaded via USB > >> executes immediately, and then the NXT quits. But for me it?s better > >> than the IR download for the RXC. > >> > >> Roger > >> > >> ------------------------------------------------------------------------- > >> Take Surveys. Earn Cash. Influence the Future of IT > >> Join SourceForge.net's Techsay panel and you'll get the chance to share > >> your > >> opinions on IT & business topics through brief surveys-and earn cash > >> http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > >> _______________________________________________ > >> Lejos-discussion mailing list > >> [email protected] > >> https://lists.sourceforge.net/lists/listinfo/lejos-discussion > >> > > > > ------------------------------------------------------------------------- > > Take Surveys. Earn Cash. Influence the Future of IT > > Join SourceForge.net's Techsay panel and you'll get the chance to share > > your > > opinions on IT & business topics through brief surveys-and earn cash > > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > > _______________________________________________ > > Lejos-discussion mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/lejos-discussion > > > > > > -- > > Internal Virus Database is out-of-date. > > Checked by AVG Free Edition. > > Version: 7.5.441 / Virus Database: 268.18.1/690 - Release Date: 16/02/2007 > > 14:25 > > > > > > ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Lejos-discussion mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/lejos-discussion
