 | | Re: earlier version of binutils?
|
|
(...) Hi again, I've got it working now, thanks to help from Jochen Hoenicke and Peter Gammie. I've posted my notes on the process here, if anyone is interested: (URL) now I've got a new problem... Everything was working great for about a day, but (...) (18 years ago, 31-Dec-05, to lugnet.robotics.rcx.legos)
|
| |
| | Re: train precision
|
|
(...) Yes, I used the same code for controlling Legway as the Great Ball Contraption train. That's what I posted here: (URL) (18 years ago, 29-Dec-05, to lugnet.robotics.rcx.legos)
|
| |
| | Re: train precision
|
|
(...) didn't find the c code in the url you mentioned. You used the same technique in the train, as in the legway? daniel (18 years ago, 29-Dec-05, to lugnet.robotics.rcx.legos)
|
| |
| | Re: train precision
|
|
(...) thanks for the suggestion, Brian I want to make some experimences with LDCC some day. But not in this project. daniel (18 years ago, 29-Dec-05, to lugnet.robotics.rcx.legos)
|
| |
| | Re: train precision
|
|
(...) ... (...) ... (...) ... (...) As Brian said, it's not the motors, it's the RCX. You can run Technic motors off a train controller, and you can vary the speed. But you need to do a bit more if you're using the RCX. We used that scheme when we (...) (18 years ago, 29-Dec-05, to lugnet.robotics.rcx.legos)
|
| |
| | Re: train precision
|
|
I do think Steve is on the right track here. The train regulator varies the voltage, but the RCX output can't. So you are left with managing (nominally) 9v pulses. But there is another solution. You could add a DCC decoder to your train motor, and (...) (18 years ago, 29-Dec-05, to lugnet.robotics.rcx.legos)
|
| |
| | Re: train precision
|
|
(...) hi Steve, I think the problem is not exactly the same. The lego technic motors run always at the same speed so you need to use that kind of schema for speed control in robots. The train motors are different, they have a speed proportional to (...) (18 years ago, 29-Dec-05, to lugnet.robotics.rcx.legos)
|
| |
| | Re: train precision
|
|
(...) Daniel, One problem you'll run into with most software is that it switches between power and float to adjust the motor levels. It works much better to switch between power and brake. Using most software, the train will continue to speed up, (...) (19 years ago, 27-Dec-05, to lugnet.robotics.rcx.legos)
|
| |
| | train precision
|
|
A couple of years ago, i used brickOS. Then, i changed to Lejos... I have a moc where i use the RCX to control a train with a lego train motor. It is difficult to control the train with LejOS, because it only has 8 output levels. Two solve the (...) (19 years ago, 27-Dec-05, to lugnet.robotics.rcx.legos)
|
| |
| | earlier version of binutils?
|
|
Hi, I have been trying to get brickos to compile on my linux machine. I followed the instructions here: (URL) used binutils version 2.16.1, and gcc version 4.0.2. The cross compile seemed to work. However, when I try to compile brickos, I get the (...) (19 years ago, 22-Dec-05, to lugnet.robotics.rcx.legos)
|
| |
| | Re: avoid messaging
|
|
(...) I'd agree that a physical block is the easiest, although there is a software solution. The RCX can not recieve a command while it's transmitting - so if you saturate the transmitter with things to do, it will not be able to "look" for any (...) (19 years ago, 5-Dec-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.legos)
|
| |
| | RE: avoid messaging
|
|
Yes, I indeed have an attachment which will act like blockage, but not a full one though. Sounds like this is the fastest and easiest to do. I fully understand the opcodes concept, as I myself wrote compile code before. However, these kids age only (...) (19 years ago, 5-Dec-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.legos)
|
| |
| | Re: avoid messaging
|
|
(...) If you have an event waiting for a message, I doubt it will have much impact on the speed of the rest of the program. However, this will not catch the messages you're looking for. You can't use the "mail" function to receive op-code, such as (...) (19 years ago, 5-Dec-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.legos)
|
| |
| | avoid messaging
|
|
Hi In order to avoid unwanted interruption, such as remote shutdown, from other RCX during execution time, I wonder if the only thing can be done to safe-guard my RCX will be having an independent task dedicated to receive message (mail). This, of (...) (19 years ago, 5-Dec-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.legos)
|
| |
| | using rotation sensor
|
|
Most of you are aware of the speed of the robot often causes parity in distance via the feedback of rotation sensors because of inertia. In our experiment, even with a robot with moderate speed. The parity seems to often occur right at the beginning (...) (19 years ago, 30-Nov-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx.legos)
|
| |
| | rack & pinion, & subvis
|
|
My club children, age 11 to 14, just started to make a writer... This is different from what is in the Ferrari's book. The one we are attempting to build is to load the pen into the center of the construction. RCX is sitting on a mobile chassis. (...) (19 years ago, 26-Nov-05, to lugnet.robotics.rcx.legos)
|
| |
| | Re: use RCX with the lego set 4095
|
|
(...) That would require extensive redesign, as the 4095 unit also contains the motors in a compact unit... Philo BTW: imho 4095 is not worth buying (main unit is close to useless) unless you get it at a very low price! (19 years ago, 25-Nov-05, to lugnet.robotics.rcx.legos)
|
| |
| | use RCX with the lego set 4095
|
|
I wonder if anyone has experience with this set. The description on the lego site is not clear enough for me to determine whether I can replace the body with the RCX... Thanks! ---...--- -------- Elizabeth (19 years ago, 24-Nov-05, to lugnet.robotics.rcx.legos)
|
| |
| | brickOS on Mac OS X
|
|
Hello, I'm trying to get a recent brickOS (0.9.0) working on Mac OS X 10.4.3. I have an RCX 2.0 with the USB tower. I have a cross-compiler (gcc 3.2.2) that apparently works, and using the firmware download program included with lejOS (specially (...) (19 years ago, 22-Nov-05, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx)
|
| |
| | problems with lnp+brickos+cygwin
|
|
Hi everybody: I have installed and BrickOS 0.9.0 and Cygwin, since my machine uses Windows XP Home Edition. I have downloaded lnpd 0.9.0, but I have problems when installing this package. I run ./configure and everything seems ok, but when I try the (...) (19 years ago, 21-Nov-05, to lugnet.robotics.rcx.legos)
|
| |
| | dllx problems, with lnpd 0.9.0
|
|
Hi, I'm having problems getting dllx to work. I expanded the lnpd 0.9.0 zip file from sourceforge. I did ./configure and make with no problems or error messages. Now, I run lnpd with "lnpd --nolock". Then I do "dllx test.lx" and the green light on (...) (19 years ago, 13-Nov-05, to lugnet.robotics.rcx.legos)
|
| |
| | Re: pre-releases brickos-0.9.0/lnpd-0.9.0 avail. for testing/feedback
|
|
Hi, I'm having problems getting dllx to work. I expanded the lnpd 0.9.0 zip file from sourceforge. I did ./configure and make with no problems or error messages. Now, I run lnpd with "lnpd --nolock". Then I do "dllx test.lx" and the green light on (...) (19 years ago, 13-Nov-05, to lugnet.robotics.rcx.legos)
|
| |
| | Re: error in using brickOS under Bricx Command Center
|
|
(...) I tried with both 0.2.6 and 0.9.0 (...) I am sorry for imprecise expressions. I meant that I followed your suggestions. But the result was the same as before. (...) I didn't try yet. (...) I am able to use brickos under command prompt as well (...) (19 years ago, 31-Oct-05, to lugnet.robotics.rcx.legos)
|
| |
| | Re: error in using brickOS under Bricx Command Center
|
|
(...) 1. What version of brickos do you have installed? (cat VERSION from the brickos root directory and post the output) 2. What do you mean by "Of course I did in vain."? Be as precise as possible in your answer. With a correctly installed copy of (...) (19 years ago, 19-Oct-05, to lugnet.robotics.rcx.legos)
|
| |
| | Re: error in using brickOS under Bricx Command Center
|
|
(...) As I said before, I am able to use brickOS under cygwin. Does this mean that I have files required by brickOS? I guess you don't mean that I have to run the two commands: make realclean make (Of course I did in vain.) Je-Young Choi (19 years ago, 19-Oct-05, to lugnet.robotics.rcx.legos)
|
| |
| | Re: error in using brickOS under Bricx Command Center
|
|
(...) I have dug around a bit on my computer and I managed to duplicate your problem. If I do a make realclean from the brickOS root directory: C:\cygwin\brickos>make realclean [lots of output delete] then when I run make -f helloworld.mak I get the (...) (19 years ago, 18-Oct-05, to lugnet.robotics.rcx.legos)
|
| |
| | Re: error in using brickOS under Bricx Command Center
|
|
Thank you very much for your enduring kindness. (...) The content of helloWorld.mak is the same as that you wrote before. When I run make -f helloWorld.mak, I get nothing. When I run make -f helloWorld.mak after deleting helloworld.lx, I get make: (...) (19 years ago, 18-Oct-05, to lugnet.robotics.rcx.legos)
|
| |
| | Re: error in using brickOS under Bricx Command Center
|
|
(...) Given that your OS Root setting was wrong before and now it is right then modifying that setting did help. It just didn't completely fix your problem. The OS Root setting in BricxCC needs to be set to the Cygwin path to the root of the brickOS (...) (19 years ago, 17-Oct-05, to lugnet.robotics.rcx.legos)
|
| |
| | Re: error in using brickOS under Bricx Command Center
|
|
I am able to use (compile and download) brickOS under cygwin but not under BricxCC. (...) I am sorry to say that the modification in the "OS root" setting didn't help. In fact I installed BricxCC in 2 of my computers. Both show the same error (...) (19 years ago, 16-Oct-05, to lugnet.robotics.rcx.legos)
|
| |
| | Re: error in using brickOS under Bricx Command Center
|
|
Here are the contents of my helloworld.mak file: ROOT=/brickos KERNEL=$(ROOT)/boot/brickOS PROGRAMS=helloworld.lx DOBJECTS= all:: $(DOBJECTS) $(PROGRAMS) download:: all $(ROOT)/util/dll --program=1 --tty=usb --rcxaddr=0 $(PROGRAMS) set_addr:: (...) (19 years ago, 11-Oct-05, to lugnet.robotics.rcx.legos)
|
| |
| | Re: error in using brickOS under Bricx Command Center
|
|
(...) I am not experienced in running brickOS under Windows, but are you sure you can mix the "/" and "\" in the path names? "\" is Windows style, "/" is UNIX style. (That is why I do all my brickOSing with Linux) (...) Why? I mean, why (...) (19 years ago, 6-Oct-05, to lugnet.robotics.rcx.legos)
|
| |
| | Re: error in using brickOS under Bricx Command Center
|
|
(...) Thank you for your informations. After closing the error message window, I clicked F12 key. The resulting Code Listing Window contained nothing. The content of the file helloworld.mak is ROOT=C:\cygwin\brickos KERNEL=$(ROOT)/boot/brickOS (...) (19 years ago, 6-Oct-05, to lugnet.robotics.rcx.legos)
|
| |
| | Re: roboarm activities
|
|
(...) I found that either rotating a colour wheel in front of the sensor(with its distance LED off) in combination with a white light -or- using a coloured LED at a _very_ close distance works well; i.e. most materials give a marked response as long (...) (19 years ago, 3-Oct-05, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx.robolab)
|
| |
| | Latest version os
|
|
Hi, Can someone post a latest compiled version of the brickos 0.9.0 (BrickOS.srec) I have some trouble to compile this version Thanks, Jan Kromhout Hellevoetsluis-NL (19 years ago, 3-Oct-05, to lugnet.robotics.rcx.legos)
|
| |
| | roboarm activities
|
|
Hi, questions to all the guru out there. I have spent 20 hours on this roboarm. I am hoping to make it work like a color sorter. - pick up a ball wrapped in tin foil and drop it off at a container wrapped up in tin foil as well. - pick up a ball (...) (19 years ago, 2-Oct-05, to lugnet.robotics.rcx.legos, lugnet.robotics.rcx.robolab)
|
| |
| | Re: error in using brickOS under Bricx Command Center
|
|
(...) Can you do F12 and post the contents (if any)? Do you have bash installed? While the error message is displayed you can open a command prompt and change directory to the location of your source code file. There you should find a .cmd and a (...) (19 years ago, 29-Sep-05, to lugnet.robotics.rcx.legos)
|
| |
| | Re: Can't upload new program after I have used LNP under brickos
|
|
(...) Well, thanks for the help, that didn't actually work. But I found it out, what was my fault. In my Program I changed the LNP Base adress of the robot. After that the robot did not react to the default adress 0. So, at the end of the program I (...) (19 years ago, 29-Sep-05, to lugnet.robotics.rcx.legos)
|
| |
| | Re: Can't upload new program after I have used LNP under brickos
|
|
(...) You had to turn on the lnp, with something like this: (I forget the exact commands) lr_startup(); lr_init(); lnp_init(); Make sure you turn it off: lr_shutdown(); Steve (19 years ago, 26-Sep-05, to lugnet.robotics.rcx.legos)
|
| |
| | Can't upload new program after I have used LNP under brickos
|
|
Hello, |I have the following problem: |when I use lnp under brickos, the rcx does no longer respond to the legotower. |This means that I can't delete the program nor overwrite it. | |Pershaps somebody can help. | |Thanks, | |Andy (19 years ago, 26-Sep-05, to lugnet.robotics.rcx.legos)
|
| |
| | error in using brickOS under Bricx Command Center
|
|
Dear all, I am new to Lego Mindstorms programming. Recently I installed Bricx Command Center in Windows XP Home following the instructions in (URL) I am able to use NQC and leJOS but not brickOS under Bricx Command Center. (Downloading the brickOS (...) (19 years ago, 17-Sep-05, to lugnet.robotics.rcx.legos)
|
