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 Robotics / RCX / *3925 (-20)
  Re: LegOS 0.2.5 and LNP
 
(...) you may see (...) give access (...) the handlers (...) My only (...) depend on. (...) introduce a (...) this point to (...) I think that we can use safely (CONF_TM || defined CONF_HOST) condition. I'm checking the whole patch and I think that (...) (24 years ago, 21-Jan-01, to lugnet.robotics.rcx.legos)
 
  Anyone made animatronics with the RCX yet?
 
I'd like to make some sort of Disney-style animatronic robot with my RCX. This would involve using all three motors to control a Tiki Room-style parrot, for example, with a rotation sensor on each motor. Programming the robot would involve running a (...) (24 years ago, 21-Jan-01, to lugnet.robotics.rcx)
 
  Re: RCX 1.0 Power Jack/AC Adapter Question
 
(...) I've ran my RCX 1.0 on a train power adapter for 2 weeks straight. No problems. Dean -- Coin-Op's For Sale!: (URL) Lego Workshop: (URL) Lego Club: (URL) (24 years ago, 21-Jan-01, to lugnet.robotics.rcx)
 
  Re: RCX 1.0 Power Jack/AC Adapter Question
 
You can use any of the AC adapters from the 9V train sets on the RCX 1.0. I use the ac adpaters from the 4561 and the feight train (red and black) and I have never had any problems. Ahui (...) (24 years ago, 21-Jan-01, to lugnet.robotics.rcx)
 
  RCX 1.0 Power Jack/AC Adapter Question
 
I just snagged another 4561Railway Express. I believe I recall reading that the AC adapter in that will work with my RCX 1.0. Can anyone confirm this? Thanks, Thomas (24 years ago, 21-Jan-01, to lugnet.robotics.rcx)
 
  Gearing down a lego motor
 
Hi, Before I invest a lot of time on this, what is the minimal gearing I need to do in order for a Lego motor to let itself up. How about a lego motor lifting itself and another motor up? I want the motor to be powerful but at the same time fast... (...) (24 years ago, 20-Jan-01, to lugnet.robotics.rcx, lugnet.robotics)
 
  Re: LegOS 0.2.5 and LNP
 
(...) I cleaned up my code (found one bug!), the patch follows. As you may see now there are two semaphore, because two are the resources to give access to: the LNP buffer and the IR port. I modified the calling of the handlers to avoid race (...) (24 years ago, 20-Jan-01, to lugnet.robotics.rcx.legos)
 
  Vison Command & W2K
 
I bought a Vision Command set and found that the LEGO software installer detects NT & 2K and refuses to go further. However, the CD for VC has 2k drivers and the QUICKCAM program works fine. Anyone have a way around this problem? (24 years ago, 19-Jan-01, to lugnet.robotics.rcx)
 
  Re: undefined reference to `___ucmpsi2'
 
(...) With regards to this, it appears that Markus left out two necessary functions in lib/mint. Specifically, cmpsi2 and ucmpsi2. These are a part of librcx but apparently they were omitted from LegOS when Markus included support for the other (...) (24 years ago, 19-Jan-01, to lugnet.robotics.rcx.legos)
 
  Another way to avoid Float
 
For the navigation of my robot, I do not plan to use float or trig function. I will use long integer (32bits). the high 16 bit are the true integer value. the low 16 bits are 1/65535 value. let say 1 = 0x00010000 2 = 0x00020000 2.5 = 0x00028000 2.25 (...) (24 years ago, 19-Jan-01, to lugnet.robotics.rcx)
 
  the 'java on host' concept
 
to overcome limitations of the prog. size in my CM, and my experience with Java, I decided to have the applications running on the host laptop. In the mean time things are looking very good. I'm only running Java on the host. I didn't touch the CM. (...) (24 years ago, 19-Jan-01, to lugnet.robotics.rcx.java)
 
  legOS v2.5 merge-map utility still using perl ?
 
I read somewhere that perl was no more needed in v2.5. And as I began with this v2.5 version, I didn't install perl. So when I try to use merge-map to get a symbolic disassembled file of my code, it fails. Should I install perl or is there any way (...) (24 years ago, 19-Jan-01, to lugnet.robotics.rcx)
 
  Visual NQC 2001
 
Thanks to all who have tested my program. I know there are some problems and runtime errors. The biggest problem for me was the bad website on with some of you used the bugs report to tell me what's wrong, but this information didn't never reach my (...) (24 years ago, 19-Jan-01, to lugnet.robotics.rcx.nqc)
 
  Re: undefined reference to `___ucmpsi2'
 
(...) Another choice may be a cast in the switch statement, like this: static wakeup_t light_found(wakeup_t sens_num) { switch ((unsigned int)sens_num) { case 2: return (LIGHT(SENSOR_2) > THRESHOLD); break; case 3: return (LIGHT(SENSOR_3) > (...) (24 years ago, 18-Jan-01, to lugnet.robotics.rcx.legos)
 
  Re: LegOS 0.2.5 and LNP
 
(...) Ok, I clean up the code and send you a patch. (...) This one is not yet ready. As soon as I do it you'll know. bye Bernardo (24 years ago, 18-Jan-01, to lugnet.robotics.rcx.legos)
 
  Re: util/dll-src makefile patch
 
(...) current cvs (...) lnp.c under (...) windows. The other (...) They works. :-) Bye, Paolo. --- I'm an optimist, but I don't think it helps. (24 years ago, 18-Jan-01, to lugnet.robotics.rcx.legos)
 
  Re: undefined reference to `___ucmpsi2'
 
Hi, The problem is that wakeup_t is an unsigned long, and in order to save space, the switch statement is optimized to call a library comparator, ucmpsi2. Since the argument to ds_scale is an unsigned int, the argument to LIGHT should also be an (...) (24 years ago, 18-Jan-01, to lugnet.robotics.rcx.legos)
 
  Re: Vision command & macintosh
 
(...) I had heard that the actual camera was a Logitech QuickCam, but I could find no Mac drivers on their site that will work with the Lego camera. Any ideas? John (24 years ago, 18-Jan-01, to lugnet.robotics, lugnet.robotics.rcx)
 
  undefined reference to `___ucmpsi2'
 
I get this error when linking if I have the following in my source code in a wait_event function: #define THRESHOLD (unsigned short)50 static wakeup_t light_found(wakeup_t sens_num) { switch (sens_num) { case 2: return (LIGHT(SENSOR_2) > THRESHOLD); (...) (24 years ago, 18-Jan-01, to lugnet.robotics.rcx.legos)
 
  Re: pass by refrence or value?
 
Did you care to declare your global variable as volatile? this (normaly) prevent the compiler to optimize memory access and force it to read the actual value of the variable each time it need it ( instead of localy storing it in a register wich will (...) (24 years ago, 18-Jan-01, to lugnet.robotics.rcx.legos)


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