RCX programmable brick : Search Results: usb to ris 1.x rcx ir how


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		Re: Using legos-devel@lists.sourceforge.net VS posting at lugnet.robotics.rcx.legos
Joseph Woolley <jwoolley@spamblock....ht.rr.com> wrote in message news:Gtw6sr.DC9@lugnet.com... (...) [snip] (...) the (...) next (...) Joseph, How did you sign up? I looked around but found no solution to this. I even tried the old subscribe in (...) (23 years ago, 1-Apr-02, to lugnet.robotics.rcx.legos)

rcx, how
(score: 3.126)

		RE: time sampling under the rcx standard OS
Here are some comments on how to improve your code for real-time performance. 1. Move the "SetUserDisplay" out of the loop and put it just before the loop. 2. I think the "OnFwd" macro is actually two instructions: "Fwd" and then "On". Replace this (...) (19 years ago, 17-Sep-05, to lugnet.robotics.rcx.nqc)

rcx, how
(score: 3.126)

		Is the program running?
Does anyone know how to poll the RCX (with standard firmware 2.0) to find out whether a program has terminated yet? If you can see the LCD, you can see whether the little man is still moving, but can you check this from a host computer? The (...) (23 years ago, 9-Mar-02, to lugnet.robotics.rcx)

rcx, how
(score: 3.126)

		Re: The pain of communicating with the RCX
(...) huh? Do you mean it just writes text to the RCX without any synchronization or checksums? Then how is it going to be an improvement over a plain ascii upload using e.g. ascii-xfr? (...) But then you can't use those constants (i.e the words, (...) (25 years ago, 10-Mar-00, to lugnet.robotics.rcx.pbforth)

rcx, how
(score: 3.126)

		Re: RCX low-battery indicator problem
(...) been (...) low (...) stay (...) probably (...) you (...) has (...) out (...) DID (...) anyone knows how I can use the bad one. Chris (24 years ago, 12-Jan-01, to lugnet.robotics.rcx)

rcx, how
(score: 3.126)

		Re: anyone know how to check free space on RCX?
(...) int is defined as the natural width of the processor, which on a 16-bit processor is 16 bits. longs are 64 bits on some machines as well, so you can't assume it is always 32 bits -- if your code cares, use sizeof. (...) 32-bit math on the H8 (...) (22 years ago, 12-Jul-02, to lugnet.robotics.rcx.legos)

rcx, how
(score: 3.126)

		Re: RCX AC adapter
I've used my AC adapter from my 9V trains and I've had no problems. I think you can you any old adapter just make sure that you don't put too much current into the RCX or bye,bye.... E-mail lego about it, I did once to find out how much current the (...) (24 years ago, 17-May-00, to lugnet.robotics.rcx)

rcx, how
(score: 3.126)

		Re: anyone know how to check free space on RCX?
That is very interesting Jason. It is interesting that mm_free_mem() returns a 16bit value using a 32bit return code. Both int and long are 32bit value on most computers/compilers these days; short would be a 16bit value; and char would be an 8bit (...) (22 years ago, 11-Jul-02, to lugnet.robotics.rcx.legos)

rcx, how
(score: 3.126)

		Re: anyone know how to check free space on RCX?
kenneth, I believe the code you are looking for is used in program.c (for LegOS v0.2.6) When you press the View button (with no program running) LegOS will show you "FREE", press again, you will get the most significant portion of the free memory (...) (22 years ago, 10-Jul-02, to lugnet.robotics.rcx.legos)

rcx, how
(score: 3.126)

		Re: anyone know how to check free space on RCX?
Albert Huang, Sorry for the confusion. "most significant" = upper 16 bits and "least significant" = lower 16 bits (the free memory is a 32 bit value). If you write the values out, you will get the 32 bit value (both values are hex) ... for example: (...) (22 years ago, 11-Jul-02, to lugnet.robotics.rcx.legos)

rcx, how
(score: 3.126)

		Re: anyone know how to check free space on RCX?
John A. Tamplin, Jason Clark, Jochen Hoenicke and Michael J Ash: Thank you all for addressing these issues! It all make sense after reading the preceeding messages. I appologize for causing confusion. I am glad, however, to get it straight. ??So (...) (22 years ago, 12-Jul-02, to lugnet.robotics.rcx.legos)

rcx, how
(score: 3.126)

		Re: NQC and Vision Command
(...) Depends a lot on how they structured the Vision Command software. My understanding is that all of the vision recognition runs on the host computer (not the RCX). If the program logic also runs on the host and the end result is that the host (...) (24 years ago, 19-Aug-00, to lugnet.robotics.rcx.nqc)

rcx, how
(score: 3.126)

		Re: RCX Crash!
Well, acually I wanted to download the pbForth into the RCX because I was reading the book EXTREME MINDSTORMS that you wrote with Dave Baum. In the pbForth chapter I just read trough until I got to the second part. There I needed to test for myself (...) (24 years ago, 20-Mar-01, to lugnet.robotics.rcx.pbforth)

rcx, how
(score: 3.125)

		Re: How to communication between RCXs without PC?
I searched LugNET news for "legos send message" and came up with at least these two promising threads: (...) (23 years ago, 24-Aug-01, to lugnet.robotics.rcx.legos)

rcx, how
(score: 3.125)

		How did you made nqc?
Hello ! Being a fervent user of NQC, (thanks mr Baum!) I'm asking myself how nqc has been made. I know it's a very complex topic, but some explication for non programming-specialists could be very interesting. And because the rcx has quite limited (...) (25 years ago, 13-Dec-99, to lugnet.robotics.rcx.nqc)

rcx, how
(score: 3.125)

		Troubleshooting LeJOS... how?
First attempt ever at using leJOS. 1) Windows2000 2) System variable RCXTTY=COM1 3) NQC, ROBOLAB, RCX Code, and VB all work fine 4) New batteries in RCX, new battery in tower 5) lejos lib directory in CLASSPATH 6) lejos bin directory in front of (...) (23 years ago, 26-Jun-01, to lugnet.robotics.rcx.java)

rcx, how
(score: 3.125)

		RCX display
Hi, I suppose it must have been done before, because it is so obvious, but I can't seem to be able to find information about it on the web. Can anybody tell me how to access the RCX display directly, that is, for example, display numbers or such? A (...) (24 years ago, 26-Jan-01, to lugnet.robotics.rcx)

rcx, how
(score: 3.125)

		Re: How to turn LEDs on/off ?
(...) What LED are you talking about? The RCX has no LED build in. If you mean the LCD display, you can use the cputc_native_() functions described here: (URL) you mean a LED connected to a motor output, just use the motor_ functions described (...) (20 years ago, 9-Aug-04, to lugnet.robotics.rcx.legos)

rcx, how
(score: 3.125)

		Re: How could I tell if I'd cooked the motor controllers ?
I presume you did all the usual things: Clean the RCX terminals, try other motors, check for unusual friction in the drivetrain (like, something is out of adjustment) ...etc? Jerry (...) (22 years ago, 15-Feb-03, to lugnet.robotics.rcx)

rcx, how
(score: 3.125)

		Re: anyone know how to check free space on RCX?
(...) My sources (gcc-3.0) say: #define INT_TYPE_SIZE (TARGET_INT32 ? 32 : 16) A short experiment revealed that sizeof(short)=sizeof(int)=2, sizeof(long)=4. So int is normally 16bit. Only with the switch "-mint32" I get 32 bit ints. This is with a (...) (22 years ago, 12-Jul-02, to lugnet.robotics.rcx.legos)

rcx, how
(score: 3.125)

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