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 Robotics / RCX / *7980 (-20)
  Re: INT_MAX in BrickOS
 
(...) Yes, very much, thank you. That explains why I was getting odd results when I set an int to 65535. Now, I know what to do. Thanks Steve (21 years ago, 8-Oct-03, to lugnet.robotics.rcx.legos)
 
  Re: INT_MAX in BrickOS
 
(...) Hi Steve, Here's a handy table: TYPE BITS MIN MAX ===...=== char 8 0 255 unsigned char 8 0 255 signed char 8 -128 127 int 16 -32768 32767 unsigned int 16 0 65535 unsigned 16 0 65535 long 32 -2147483648 2147483647 unsigned long 32 0 4294967295 (...) (21 years ago, 8-Oct-03, to lugnet.robotics.rcx.legos)
 
  Re: leJOS auto power-off
 
Works for me! Thanks for the pointer (I think I searched everywhere *but* lugNET :O). (...) (21 years ago, 8-Oct-03, to lugnet.robotics.rcx.java)
 
  Re: RCX Communications problems
 
Hi everyone, I did take a look at LNP, but I need to be sure that the RCX received the packet. As far as I Know, LNP is an UDP kind of communication. LLC is more reliable way to communicate as it uses ACK. I’m thinking know in recompile the RCXPort (...) (21 years ago, 7-Oct-03, to lugnet.robotics.rcx.java)
 
  INT_MAX in BrickOS
 
What's the max value for an INT in BrickOS? Is it +/- 2,147,483,647? (21 years ago, 8-Oct-03, to lugnet.robotics.rcx.legos)
 
  Re: leJOS auto power-off
 
(...) It can't be done. (URL) Hansen (URL) (21 years ago, 8-Oct-03, to lugnet.robotics.rcx.java)
 
  leJOS auto power-off
 
How does one disable the auto power-off feature in leJOS? I've scanned the API and can't find it. Thanks. -Brian (21 years ago, 8-Oct-03, to lugnet.robotics.rcx.java)
 
  Re: Linked Lists in BrickOS
 
(...) Also, add some semicolons to the above like so: class list { private: Node *p_head; }; Mark (21 years ago, 7-Oct-03, to lugnet.robotics.rcx.legos)
 
  Re: Linked Lists in BrickOS
 
In lugnet.robotics.rcx.legos, Michael Purvis wrote: <snipped some, added some filler> (...) In order for the above to work.... (...) wouldn't the above need to be uncommented ??? I am not seeing where else you declared pData... but I could be wrong. (...) (21 years ago, 7-Oct-03, to lugnet.robotics.rcx.legos)
 
  Linked Lists in BrickOS
 
Thanks to all that assisted me in getting set up. It turned out to be missing Cygwin packages. My bad. Two problems. Firstly, BrixCC needs to be restarted to compile 'new' code. Is there a way to correct this problem? Also, I'm having trouble (...) (21 years ago, 7-Oct-03, to lugnet.robotics.rcx.legos)
 
  Re: write files
 
(...) I'm glad that you (and others) have found NQC to be useful. Most people don't use NQC for anything beyond compiling and downloading programs, but it has lots of options for interacting with the RCX (such as -datalog, -run, and -raw). Type "nqc (...) (21 years ago, 3-Oct-03, to lugnet.robotics.rcx.nqc)
 
  Re: More than 1 integer in a data packet?
 
(...) I'm not a leJOS expert by any stretch of the imagination. But I think I can help. (...) That is not a correct understanding of the rcxcomm package API. The RCXOutputStream class, for example, which descends from java.io.OutputStream inherits (...) (21 years ago, 2-Oct-03, to lugnet.robotics.rcx.java)
 
  Re: write files2
 
(...) Markus, I second Chris' request that you explain more fully what you are trying to do exactly. Why do you need your output formatted as result1;result2;result3..., for instance? John Hansen (21 years ago, 2-Oct-03, to lugnet.robotics.rcx.nqc)
 
  Re: write files2
 
(...) You probably do not want to use the datalog if you just want to get the latest lightsensor reading every two seconds. Here's a way to do it if you can use JavaScript and if you have BricxCC installed (since BricxCC implements an out-of-process (...) (21 years ago, 2-Oct-03, to lugnet.robotics.rcx.nqc)
 
  Re: write files2
 
(...) By "connected" do you mean always within range of the infrared tower? (...) How long do you need to do this? Do you need to access the text file while the robot is running, or do you only plan to use the data after the experiment is over? (...) (21 years ago, 2-Oct-03, to lugnet.robotics.rcx.nqc)
 
  Re: write files
 
(...) Of course. How silly of me to forget that NQC, the most influential piece of RCX software ever written, has built-in support for the datalog. I use NQC for the majority of my projects, and have found it to be the quickest way to develop RCX (...) (21 years ago, 1-Oct-03, to lugnet.robotics.rcx.nqc)
 
  Re: write files2
 
(...) btw: the results must be saved: e.g: log.txt consists: result1;result2;result3... (21 years ago, 1-Oct-03, to lugnet.robotics.rcx.nqc)
 
  write files2
 
thx for your answers. let me specify the problem better: the rcx is always connected with the PC. now i have a lightsensor and i want to save the results of the lightsensor every 2 seconds to my log.txt file ;) What is the best and easyiest way to (...) (21 years ago, 1-Oct-03, to lugnet.robotics.rcx.nqc)
 
  More than 1 integer in a data packet?
 
Hi there, Does anyone know if I can send more than 1 byte/integer per packet between the PC and RCX. From what I understand of the rcxcomm package API, one can only send an integer at a time. Also, the example supplied with the rcxcomm package only (...) (21 years ago, 1-Oct-03, to lugnet.robotics.rcx.java)
 
  Re: write files
 
(...) If you just want to transfer the datalog and put it in a text file you can use the nqc command: nqc -datalog This will upload the datalog and print it to stdout. Use your shell I/O redirection to put it in a file... nqc -datalog >my.log (...) (21 years ago, 1-Oct-03, to lugnet.robotics.rcx.nqc)


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