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  RE: The pain of communicating with the RCX
 
(...) That's because the SREC upload uses the native upload code in the RCX ROM. It works really well but has to send each byte as a pair with the bits inverted. Also the header and trailer have to be added. The result is that it would be impossible (...) (25 years ago, 10-Mar-00, to lugnet.robotics.rcx.pbforth)
 

long
(score: 0.230)

  Re: Build on NT?
 
You can download the WinlegOS package for development on an NT. You will need a special utility program to fix a problem with long filename support (a bug in WinNT). legOS for Windows (5.5megs): (URL) Long filename support: (URL) you wish to rebuild (...) (25 years ago, 9-Mar-00, to lugnet.robotics.rcx.legos)
 

long
(score: 0.230)

  New Windows HOWTO
 
This is a little premature since I have not yet made the compiler tools available, but I thought I would post this information now. Luis, would you like these instructions converted to HTML with all the proper links? ---...--- legOS on Windows HOWTO (...) (25 years ago, 4-Mar-00, to lugnet.robotics.rcx.legos)
 

long
(score: 0.230)

  Windows/DOS Cross-Compiler - Finally!
 
After two months of struggling, I have finally been able to build a complete set of h8/300 cross compiler tools that work natively in a Window's DOS box. So what does this mean? If you don't run Windows 9x/NT/2k, absolutely nothing. What this means (...) (25 years ago, 2-Mar-00, to lugnet.robotics.rcx.legos)
 

long
(score: 0.229)

  Re: Second source for DCP sensors
 
(...) were (...) Cory Smith sent the following email in response to the above posting: I saw your posting on the rcx newsgroup. What are DCP sensors? Where can I find out about the ones Lego offers? Thanks. Cory Smith I think this question is best (...) (25 years ago, 25-Feb-00, to lugnet.robotics.rcx.robolab)
 

long
(score: 0.229)

  Re: gdb & legOS
 
(...) Markus> Hi Les, I've been advocating gdb for quite some time now, Markus> great to hear about your efforts. Hi Markus. Thanks for responding. Your input is much valued. Markus> You could also use an endless relative loop instruction Markus> (...) (25 years ago, 19-Feb-00, to lugnet.robotics.rcx.legos)
 

long
(score: 0.228)

  RE: Drive R/C Servos with the RCX and pbForth (long)
 
<snipped discussion of the math of selling servo controller boards> (...) I'm not too worried about them stealing the idea. I can't imagine that none of their designers have thought about driving servos with the RCX. The circuit itself is so simple (...) (25 years ago, 13-Feb-00, to lugnet.robotics, lugnet.robotics.rcx.pbforth, lugnet.robotics.rcx)
 

long
(score: 0.227)

  Re: Drive R/C Servos with the RCX and pbForth (long)
 
In lugnet.robotics, Ralph Hempel writes: <snip> (...) What they will do and what they can do are two separate questions. Basically they can do nothing about the sales. They can complain about not respecting their trademark, or of copying of their (...) (25 years ago, 13-Feb-00, to lugnet.robotics, lugnet.robotics.rcx.pbforth, lugnet.robotics.rcx)
 

long
(score: 0.227)

  RE: Drive R/C Servos with the RCX and pbForth (long)
 
(...) Oops, forgot to answer the main question. Yes, I have thought about making boards...and as soon as I get out from under my current workload I'm going to give it even more thought.... It is just not worth my time and money to make any less than (...) (25 years ago, 12-Feb-00, to lugnet.robotics, lugnet.robotics.rcx.pbforth, lugnet.robotics.rcx)
 

long
(score: 0.227)

  Re: Drive R/C Servos with the RCX and pbForth (long)
 
Ralph - I'm interested in the use of servos with the RCX, but I have no interest in learning the quirks of another computer language. I'm already a bit familiar with Visual Basic,and control the RCX with it. Can your pbForth solution be duplicated (...) (25 years ago, 12-Feb-00, to lugnet.robotics, lugnet.robotics.rcx.pbforth, lugnet.robotics.rcx)
 

long
(score: 0.227)

  Re: patch for lnpd ( Collision problem in far-mode )
 
(...) Someway it looks like there is another problem with your setup, in near mode i have never seen the collision problem. Perhaps your encountering the problem reported by Toni: Obviuosly his uart does not work in 16450 mode, but does work in (...) (25 years ago, 14-Feb-00, to lugnet.robotics.rcx.legos)
 

long
(score: 0.227)

  RE: Drive R/C Servos with the RCX and pbForth (long)
 
(...) I should add here that no external power source is necessary to drive the servo. This is important since a micro or miniservo and an SMT version of the driver can be made to fit INSIDE a space similar to a worm gear box (6588 in LDraw). I'm (...) (25 years ago, 12-Feb-00, to lugnet.robotics, lugnet.robotics.rcx.pbforth, lugnet.robotics.rcx)
 

long
(score: 0.227)

  RE: Drive R/C Servos with the RCX and pbForth (long)
 
(...) No, the servo needs power to the + and ground terminals to drive the motor to the setpoint indicated by the signal wire. If I don't invert the signal there is no power for about 30msec and only 1 or 2 msec ov voltage on the motor port. By (...) (25 years ago, 12-Feb-00, to lugnet.robotics, lugnet.robotics.rcx.pbforth, lugnet.robotics.rcx)
 

long
(score: 0.227)

  Re: Drive R/C Servos with the RCX and pbForth (long)
 
(...) If you're using a custom motor driver in pbForth, why use the inverter circuit at all? Why not just generate the desired waveform directly? Is there not enough current to drive the servo that way? --Ben (25 years ago, 12-Feb-00, to lugnet.robotics, lugnet.robotics.rcx.pbforth, lugnet.robotics.rcx)
 

long
(score: 0.227)

  Drive R/C Servos with the RCX and pbForth (long)
 
Hi again everyone! A few days ago I announced that I had developed a nice little circuit using easily available parts that would let you connect servos to the RCX - with no external batteries or microprocessors or anything! At that time, I said that (...) (25 years ago, 12-Feb-00, to lugnet.robotics, lugnet.robotics.rcx.pbforth, lugnet.robotics.rcx)
 

long
(score: 0.227)

  Re: LNP Example please
 
(...) Well, it's mentioned in the README ;-), but obviously not detailed enough. The problem is: the dynamic loader doesn't find the library you linked against. The dynamic loader is a program that is started whenever you execute a dynamically (...) (25 years ago, 10-Feb-00, to lugnet.robotics.rcx.legos)
 

long
(score: 0.227)

  Re: Too many sensors
 
(...) You could do it but you'd lose rotations as long as the button was pressed. You'd probably need alternate firmware to even get that working well. So on one port you can have (1 touch + 1 light/temp), (1 rotation) or (4 touch). The last with (...) (25 years ago, 8-Feb-00, to lugnet.robotics.rcx.legos)
 

long
(score: 0.227)

  Re: Too many sensors
 
Ben Jackson wrote: > You could do it but you'd lose rotations as long as the button was pressed. > You'd probably need alternate firmware to even get that working well. I can live with losing rotation when the button is pressed. I may have to reset (...) (25 years ago, 8-Feb-00, to lugnet.robotics.rcx.legos)
 

long
(score: 0.227)

  How much memory finally?
 
I'm trying to figure out how much memory the RCX has. Many sources claims that it has - 16k rom - 16k ram for the firmware - 6k reserved for our own programs Does this mean the RCX has 22k of RAM memory? What an odd number... Also, when I perform (...) (25 years ago, 9-Feb-00, to lugnet.robotics.rcx)
 

long
(score: 0.226)

  Re: using the remote control with legOS
 
it would be nice to be able to use both LNP and remote control (advance tactical robots) I wrote last night a small win prog to figure out how the remote is talking and this is it: +++ // LEGO REMOTE CONTROL (#9738 = ~20 USD) FOR RCX MESSAGE (...) (25 years ago, 9-Feb-00, to lugnet.robotics.rcx.legos)
 

long
(score: 0.226)

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