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 Robotics / RCX / *2575 (-20)
  Re: Very strange problems
 
(...) It seems that emulegos should be able to handle IR. However, it does not use the lnp-functions that I use, so I presume it is designed to work with an earlier version of legOS. Were earlier versions of legOS (I use version 0.2.3) less likely (...) (24 years ago, 21-May-00, to lugnet.robotics.rcx.legos)
 
  Re: Very strange problems
 
(...) I will hopefully clean up and release some of it by Wednesday. (...) I'm not sure- I don't think so, though. Someone else here may be able to answer that much better than I can. Luis ---...--- "Going to California with an aching in my heart. (...) (24 years ago, 21-May-00, to lugnet.robotics.rcx.legos)
 
  Re: Very strange problems
 
(...) Is this neural network code made public? I have emulegos, but I havn't much more than started it up. Do you know if it can handle IR-communication between several RCXs? Tobias (24 years ago, 21-May-00, to lugnet.robotics.rcx.legos)
 
  Re: Very strange problems
 
(...) Yes. We ran into similar problems when writing neural network code. Persist- you can write really cool stuff on legOS- we did. Also, emulegos (which is still around somewhere, though I'm not sure if anyone has ported it to 0.2.x) would (...) (24 years ago, 21-May-00, to lugnet.robotics.rcx.legos)
 
  Re: Very strange problems
 
(...) That is really bad news. Since we are writing a genetic programming system with six RCXs involved that communicate with each other, the programs tend to get pretty long. Often things fail. Right now I have the problem that if I save a program (...) (24 years ago, 21-May-00, to lugnet.robotics.rcx.legos)
 
  Re: Very strange problems
 
(...) As far as I can tell, legOS has some really strange bugs. I've learned to take it for granted that some programs (without warning) will just crash and lock up the machine. This is unfortunate, but I've never found a pattern to them so there is (...) (24 years ago, 21-May-00, to lugnet.robotics.rcx.legos)
 
  Re: lnp communication question
 
(...) lnp does a checksum and throws away bad data. I think it is a 1 byte checksum so 1 out of 256 errors gets through anyway. There is no retry so timeout and retry has to be handled by some higher level code. (24 years ago, 21-May-00, to lugnet.robotics.rcx.legos)
 
  Very strange problems
 
Hi! I am experiencing some very strange problems when programming my RCX. Sometimes (too often) the RCX just locks up when I run my program and I have to remove the batteries and reload the firmware. I have now found that very small changes in my (...) (24 years ago, 21-May-00, to lugnet.robotics.rcx.legos)
 
  RE: Help with Terminal Emulator
 
(...) I have run into this too, Jerry. A few especially bothersome noise sources include video cameras, security systems, and remote controls. You might consider covering the RCX and tower with a box or towel... I'm glad the terminal emulator works (...) (24 years ago, 21-May-00, to lugnet.robotics.rcx.pbforth)
 
  Re: Help with Terminal Emulator
 
I think my problem is bounce back noise. I doubled checked the port settings, started with a fresh set of batteries, made sure I had a clear buffer, but what made the difference is where I am doing my programming. I'm working off of a laptop, and (...) (24 years ago, 20-May-00, to lugnet.robotics.rcx.pbforth)
 
  arbitrary motor code
 
Did anyone ever write the wrapper to allow motor_dir(motor_label x, MotorDirection dir) or some such? There was a variant of it way, way back (0.1.5?) but I don't see anything like it in the current CVS code. Anyone? Anyone? -Luis ---...--- "Going (...) (24 years ago, 20-May-00, to lugnet.robotics.rcx.legos)
 
  Re: lnp communication question
 
(...) Ok, this brings up more questions :). I have never had any problems with errors when sending messages. Sometimes the message is not recieved but when it is, I have never seen any errors in the transmission. Am I missing your point? Second, (...) (24 years ago, 20-May-00, to lugnet.robotics.rcx.legos)
 
  Re: IR communication PC <-> brick with NQC
 
(...) The RCX uses a special packet protocol which involes a lot of binary (non-ASCII) bytes, so controlling it with Hyperterminal won't work very well. Your best bet is to either write your own code to send the packets of the serial port or just (...) (24 years ago, 20-May-00, to lugnet.robotics.rcx.nqc)
 
  Re: Is there a compatible h8 assembler for forth words?
 
(...) A good rule. I just know I'm going to need fast so I am planning ahead. Somehow I'm usually at the bleeding edge of trying to squeeze everything possible out of limited hardware. I originally learned my Forth on a 68000 (Mac Forth on the (...) (24 years ago, 20-May-00, to lugnet.robotics.rcx.pbforth)
 
  RE: Is there a compatible h8 assembler for forth words?
 
(...) No there is not. That being said, it's pretty easy to write one...if you have the time. I fiddled around with it a bit and then gave up since the GNU tools worked pretty quick. It was strictly a time/value exchange. From bitter experience, (...) (24 years ago, 19-May-00, to lugnet.robotics.rcx.pbforth)
 
  Re: Is there a compatible h8 assembler for forth words?
 
(...) I don't think this is clear. I ment an assembler written in pbforth that can create assembler defined words in the RCX (24 years ago, 19-May-00, to lugnet.robotics.rcx.pbforth)
 
  Is there a compatible h8 assembler for forth words?
 
I asked this once before but in the middle of an unrelated email so the question got lost. (24 years ago, 19-May-00, to lugnet.robotics.rcx.pbforth)
 
  DJGPP GNU cross compiler tools
 
It looks like my ISP has changed their policy about anonymous ftp and now allow it. I've placed the DJGPP port of the GNU tools on my website here: (URL) It's a 5 meg download. Please let me know if you have any problems downloading this file. I (...) (24 years ago, 19-May-00, to lugnet.robotics.rcx.legos)
 
  RE: hforth register usage
 
(...) Right. If you look at the beginning of h8hforth.asm, I've abstracted the actual register names so I could move them around....here's the snippet from the file... ; The H8/300 Forth machine register usage has to be closely intertwined with ; (...) (24 years ago, 19-May-00, to lugnet.robotics.rcx.pbforth)
 
  Re: We need a FULL install of everything!
 
On Thu, 18 May 2000 18:00:11 GMT, "Matt McDevitt" <maktos@maktos.com> wrote: <snip> I aggree fully with your statement Matt. I've tried to install LegOS several times and i always failed because of lack of time (and of course lack of knowledge <s>). (...) (24 years ago, 19-May-00, to lugnet.robotics.rcx.legos)


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