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 Robotics / RCX / legOS / *1014 (-20)
  Re: lnptest gives collision errors. Sigh...
 
(...) I guess there is no hope. I found a long thread here with someone else who had a collision problem . I applied the patch to transmitter.c mentioned in that thread with the same result. I downloaded lnpd.static from arthurdent. Same result. I (...) (24 years ago, 27-Apr-00, to lugnet.robotics.rcx.legos)
 
  lnptest gives collision errors
 
I'm trying to use lnpd. First I'm trying to get the test app working o - installed the patch and reloaded the firmware. o - downloaded the rcx version of lnptest with dll (I can't get dllx to work) o - do tke appropriate setserial command o - start (...) (24 years ago, 25-Apr-00, to lugnet.robotics.rcx.legos)
 
  Desire Rack & Pinion design
 
Can anyone direct me to some decent pictures of a rack & pinion steering system? Thanks. Rossz (24 years ago, 24-Apr-00, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
 
  Re: task switching strategy?
 
On Fri, 21 Apr 2000, Steve Morris wrote: <snip lots of discussion, some of which I understand now and the rest of which will probably make more sense after I take OS next semester.> (...) I think the big thing is that virtually no one write CPU (...) (24 years ago, 22-Apr-00, to lugnet.robotics.rcx.legos)
 
  task switching strategy?
 
I've been wandering through the kernal comparing it to similar kernals I have known or written, trying to understand the design choices. It appears that task are only switched at the 1ms timer interrupt and at yield() function call. yield() is only (...) (24 years ago, 21-Apr-00, to lugnet.robotics.rcx.legos)
 
  Makefile question
 
I finally have a project that's large enough and well-enough organized that I have two .c files. (One holds fixed-point math routines.) Now, the README file states "If you need more source files, add them in the Makefile." My question is, what and (...) (24 years ago, 21-Apr-00, to lugnet.robotics.rcx.legos)
 
  weird legos 0.23 problems
 
I post this message without much investigation but I am confident I wouldn't find this issue easily. I have compiled code that was running fine on the rcx of approaching 4k size. unfortunately my short term memory failed / I didn't commit my work to (...) (24 years ago, 20-Apr-00, to lugnet.robotics.rcx.legos)
 
  Re: Windows communication to the RCX
 
Hello Manuel, Thanks for this post, this is exactly what we need! Would you, please, send us your Windows and RCX codes that handle the communication? We tried to use lnpd on Linux, but the test example program seems to not work properly and I (...) (24 years ago, 19-Apr-00, to lugnet.robotics.rcx.legos)
 
  (canceled)
 
 
  brake broke?
 
I'm having trouble with braking (as opposed to free-wheeling) motors. When I use motor_a_dir(brake), the motor brakes OK, but cannot be restarted. Subsequent motor_a_dir(fwd/rev) calls have no affect, the motor stays braked. I can tell this by (...) (24 years ago, 18-Apr-00, to lugnet.robotics.rcx.legos)
 
  Re: Religious wars
 
(...) I have one more suggestion, that I totally didn't think of the first time around: pico. ftp://ftp.cac.washin...-bin.linux It is decidedly unsexy, but very usable- it is what the lowest level CS courses here at Duke use- courses not designed (...) (24 years ago, 16-Apr-00, to lugnet.robotics.rcx.legos)
 
  Re: Religious wars
 
(...) If you need something that works well (I think that almost only on Linux) and your are familiar to Wordstar keys (^KX, ^KD ....)(AKA as TurboC, Pascal...) use joe (Joe's Own Editor) (...) 4what its worth: My fave is Gvim, vi with a gui and (...) (24 years ago, 16-Apr-00, to lugnet.robotics.rcx.legos)
 
  Re: no rule to make target Main.o
 
(...) Yep, You took a DOS format makefile. Unix uses \n for line ends, DOS \r\n. When unix sees the DOS form, it thinks you mean 'ir_rover^M' ^M, Ctrl-M is the unix way of expressing \r. To fix it, load the filee into vi. Type the following (...) (24 years ago, 16-Apr-00, to lugnet.robotics.rcx.legos)
 
  Function list and Command List for LegOS 0.2.3 (Long Post...)
 
Hi All, I am eagerly awaiting the full documentation for 0.2.3, in the mean time, I culled together some info from the readme files for 0.2.3, looking through some of the source files and the old 0.1.7 documentation that is on line. I find it (...) (24 years ago, 16-Apr-00, to lugnet.robotics.rcx.legos)  
 
  problems with random function for WinLegOS
 
hy !!! If have compilerproblems with random-function " undefined reference". i use kernel 0.2.3 If had read something about this problem but any solution are for cygwin or linux. i hope anyone can help me marc (24 years ago, 12-Apr-00, to lugnet.robotics.rcx.legos)
 
  Gdb & LegOS. Progress made & help wanted
 
Hi All: I've been trying to get gdb going with legOS for some time now. I've made some progress, but for various reasons, I'm now stuck. I thought I'd post this plea for help. Check this page: (URL) then email me or post a reply with your ideas. (...) (24 years ago, 12-Apr-00, to lugnet.robotics.rcx.legos)
 
  no rule to make target Main.o
 
I just unzipped emulegos_unix.zip to my RedHat 6.x system. I typed: export RCX_SOURCE=ir-rover make and got: make: *** No rule to make target `Main.o', needed by 'ir-rover^M'. Stop. Anyone know what I failed to do? (24 years ago, 12-Apr-00, to lugnet.robotics.rcx.legos)
 
  Another makefile suggestion
 
This particular change would be useful in the lib directories. Instead of using this: SOURCES=memset.c strcmp.c ..... etc. Use this: SOURCES := $(wildcard *.c) Note the use of ':=', not '='. This will pick up ALL .c files in the current directory. (...) (24 years ago, 9-Apr-00, to lugnet.robotics.rcx.legos)
 
  Calling ROM from libc
 
Hi all. This is just a quick moral question. I noticed that the RCX ROM has a copy memory routine (0x042a). I've modified my memcpy.s to use this: _memcpy: push r0 mov.w r1,r0 add.w r2,r1 pop r2 jmp @ mem_copy .end And added mem_copy=0x042a to (...) (24 years ago, 8-Apr-00, to lugnet.robotics.rcx.legos)
 
  Re: Python extension for lnp - take 2
 
(...) growing depth of languages we can all use with legOS. -Luis ---...--- "As an engineer, it's important to look yourself in the eye in the mirror every morning, and remind yourself that 'marketing is everything,' and engineering doesn't matter a (...) (24 years ago, 6-Apr-00, to lugnet.robotics.rcx.legos)


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