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 Robotics / RCX / *3185 (-20)
  Linking failure when 'making' an lx file
 
Hi Can anyone tell me why I'm getting a linking failure when trying to compile my C code, in the standard way. The linker is failing to find a fucntion I have defined in my source: /usr/local/crossgcc/...chi-hms-ld -T ../boot/legOS.lds -relax (...) (24 years ago, 28-Aug-00, to lugnet.robotics.rcx.legos)
 
  Motor Sticking
 
Hello all, I don't remember if other people have posted about this or not but I'll ask anyway. I have 3 motors that all stall or will not start with out some help. Has anyone of Lego come up with away to fix this problem? My motors are 1-2 yrs old (...) (24 years ago, 28-Aug-00, to lugnet.robotics.rcx)
 
  Re: Using NQC with iBook
 
(...) No extra cables needed. The PDA adapter's DB9 is a configured as a standard serial port. (...) Yep. Under MacOS, this is all you do. Lon (24 years ago, 28-Aug-00, to lugnet.robotics.rcx.nqc)
 
  Re: Blockin LNP calls
 
(...) I guess I'm using lnp_logical_write then? That is, I include the standard lib_lnp.h file into my code and then link my app with liblnp.so.....does this answer your question? Is there a way in which I can call lnp_logical_write directly to test (...) (24 years ago, 28-Aug-00, to lugnet.robotics.rcx.legos)
 
  Re: Using NQC with iBook
 
I use the Keyspan TWIN adapter (USB to serial port) along with a simple mac-to-pc style serial adapter (I think it came with a Pilot 1000 many years ago). The TWIN adapter is a bit pricey, but I bought it because it also works with externally synced (...) (24 years ago, 28-Aug-00, to lugnet.robotics.rcx.nqc)
 
  Re: Using NQC with iBook
 
Okay, but don't I have to buy a second adapter so that the IR cable can fit in the Keyspan PDA adapter? Or like cut up and change positions of the IR-cable inputs? Or do I just have to buy an adapter, connect it, connect the IR tower, download NQC (...) (24 years ago, 28-Aug-00, to lugnet.robotics.rcx.nqc)
 
  Re: Blockin LNP calls
 
(...) No, I meant lnp_logical_write, which is called from lnp_addressing_write. lnp_logical_write is not within the file lnp.c, which I guess you link into your app. This function is supposed to actually write to the serial device communicating with (...) (24 years ago, 28-Aug-00, to lugnet.robotics.rcx.legos)
 
  Re: Vision Command
 
(...) It's possible, but I can't find a way to choose which VfW device to use. The options for tweaking the camera are very limited. I did get more sophisticated options during the install, but apparently that was my only chance to use them, cuz now (...) (24 years ago, 28-Aug-00, to lugnet.robotics, lugnet.robotics.rcx)
 
  Re: Vision Command
 
(...) You can do what you want with the camera, but there's a 5 meter USB cord that has to be plugged into the computer if you want the camera to do anything. (24 years ago, 28-Aug-00, to lugnet.robotics, lugnet.robotics.rcx)
 
  Re: Vision Command
 
Can the VC system be put on an autonomous bot? Or is there required power umbilical? Could I have it follow a light in a dark room, for example? --Jack Gregory Chris Osborn <fozztexx@pez.fullsystem.com> wrote in message news:Fzz80E.Bn7@lugnet.com... (...) (24 years ago, 28-Aug-00, to lugnet.robotics, lugnet.robotics.rcx)
 
  Re: Vision Command
 
Can you use other cams with the lego software? I have an X10 wireless cam I'd like to use. -gyug (...) (24 years ago, 28-Aug-00, to lugnet.robotics, lugnet.robotics.rcx)
 
  Re: Blockin LNP calls
 
(...) Sorry, I was using an unsigned char variable, this was just a remnant of some testing I did..... I tried a lot of variations ;-) (...) (24 years ago, 28-Aug-00, to lugnet.robotics.rcx.legos)
 
  Re: Vision Command
 
(...) Yes, the driver that comes with the camera is a normal Video for Windows driver, so any software that you have that does Video for Windows should work fine. (24 years ago, 28-Aug-00, to lugnet.robotics, lugnet.robotics.rcx)
 
  Re: Blockin LNP calls
 
(...) Yes, the problem is on the host PC (running Red Hat 6.2). What I cant figure out is how identical code works fine if I instantiate the wrapper class in a simple demo app, but once I try calling it form within my CORBA server, it blocks on (...) (24 years ago, 28-Aug-00, to lugnet.robotics.rcx.legos)
 
  Re: Vision Command
 
(...) Can the camera be used as a standard webcan/pc camera useing normal software (24 years ago, 27-Aug-00, to lugnet.robotics, lugnet.robotics.rcx)
 
  Re: Blockin LNP calls
 
(...) From the statement "data is received by the RCX" I assume you have this problem on the host system. What OS are you using? Also, how does your lnp_logical_write() routine look like? Eddie C. Dost ecd@skynet.be (24 years ago, 27-Aug-00, to lugnet.robotics.rcx.legos)
 
  Re: Using NQC with iBook
 
I have had no difficulty using NQC on iMacs with a Keyspan PDA adapter (USB to DB9). The adapters run about $39US. The adapter comes with the necessary drivers that allow NQC to see it. Have fun! (...) (24 years ago, 27-Aug-00, to lugnet.robotics.rcx.nqc)
 
  Re: Blockin LNP calls
 
(...) ,testaddress, 8); It shouldn't be the real problem, but are you sure about the port paramenter? How about: result = lnp_addressing_write...estbuffer, testlen ,testaddress, testport); Bye, Paolo. --- Maier's Law: If the facts do not conform to (...) (24 years ago, 27-Aug-00, to lugnet.robotics.rcx.legos)
 
  Using NQC with iBook
 
I have an iBook. I know about NQC and decided to give it a try. I thought "hey, it works for mac! Great! I can install it on my iBook, run it, and then I can program my robots on my iBook! Piece of cake!" ...not. The iBook only has a USB port, no (...) (24 years ago, 27-Aug-00, to lugnet.robotics.rcx.nqc)
 
  Re: Blockin LNP calls
 
HELP! I'll ellaborate a little on the details of my previous posting: My code (removing some CORBA detail) looks like this: I have a class "nanOrbDemo_i" which has the following constructor: inline nanOrbDemo_i(){ if ( lnp_init(0,0,0,0,0) ){ cout << (...) (24 years ago, 27-Aug-00, to lugnet.robotics.rcx.legos)


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