 | | Re: Modifying the BrickOS source code
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Here is a visual representation: [ KERNEL ]mm_start[ HEAP ] The heap will contain ALL of the following: User Programs, User Allocated memory, Kernel allocated memory (not including static/global variables and constants). The only thing that is prior (...) (21 years ago, 15-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: Modifying the BrickOS source code
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(...) Thanks for the description Joe, but in the above paragraph you seem to contradict yourself, you say that mm_start is the end of kernel mode, but alos that user programs are located above mm_start I do not understand that part, did you mean (...) (21 years ago, 15-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: Modifying the BrickOS source code
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Mike, IIRC, mm_start is the beginning of the heap. When the system or a user program requests memory (new in C++ or malloc/calloc in C) the memory is taken from this block (from mm_start to the end of memory) What might be confusing is how the (...) (21 years ago, 15-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: Modifying the BrickOS source code
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Thanks to all with the help, I finally got my new News setup info (my original login wasnt working so I had to re-sign up but it took about 2 weeks to hear from lugnet, so Charlie posted some stuff for me). I am looking at mm.c for my project and I (...) (21 years ago, 15-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: BrickOS motor-output: Subject to change?
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Do you use another firmware downloader besides firmdl3? Recent changes to BrickOS changed the memory layout a bit and this could be an issue. For example, I just discovered that the nqc firmware downloader doesn't like firmware files with (...) (21 years ago, 15-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: BrickOS motor-output: Subject to change?
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Hi, I remember. I have tried brickOS 0.2.6.10 but I had problems with downloading the firmware. I was unable to get the new kernel into the RCX. I do not have this problem with 0.2.6.9. Thanks, Dietmar (...) [...] (...) [...] (21 years ago, 14-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: Help with lnp
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(...) (URL) the latest 0.2.6.10 version. Regards, Michael (21 years ago, 9-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: Help with lnp
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I guess I should have been more specific initially. Our question, more precisely, is which version of brickOS can we use on regular redhat linux? We will use your directions as well, but what we were really stuck on was which of the brickOS versions (...) (21 years ago, 9-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: Help with lnp
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Hello Katie, (...) A good decision. (...) To install software on (RedHat) Linux, you will use a program called rpm. Rpm is a packet manager; it can install new programs, you can ask rpm if a package is installed, you can update an existing package (...) (21 years ago, 8-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: Help with lnp
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(...) So if you don't want to take the time to configure linux, then you can perhaps try to download legnoppix. Legnoppix is a linux distribution bootable on CD you don't need any installation and it include all lego tools available in linux (not (...) (21 years ago, 8-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: BrickOS motor-output: Subject to change?
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Hi Dietmar, Have you tried brickOS 0.2.6.10? Code was added to that version to address this issue. Mark "Dietmar Cordes" <cordes@lepomux.org> wrote in message news:3F0A7BA7.207050...mux.org... (...) (21 years ago, 8-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: Help with lnp
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(...) We finally decided to take the time and use Linux to try and get lnpd working. Although we are not familiar with Linux, our professors are helping us. Our main problem now though is the installation of brickOS. I know this should be an obvious (...) (21 years ago, 8-Jul-03, to lugnet.robotics.rcx.legos)
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| | BrickOS motor-output: Subject to change?
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Hello, while doing some testing with data transfer wia the motorport of the RCX, I had (again) the problem that the output at full speed (255) is not a constant DC-output. Does anyone have a good solution for this already and will it be part of the (...) (21 years ago, 8-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: robot as input device
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> I assume you want to use the RCX and sensors to collect data and plot/export/do (...) Yes I would like to use sensor data to control objects in a VR-Framework. So it would be possible to use lego RCX data and map it on input device data of the (...) (21 years ago, 7-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: robot as input device
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(...) I assume you want to use the RCX and sensors to collect data and plot/export/do calculations using these data. RoboLab Investigator (software) does that. You can have a bot roam around, collect sensor data of all kinds, and upload it to your (...) (21 years ago, 7-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: robot as input device
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(...) I don't really understand what you want to do ...... nanobapt (21 years ago, 7-Jul-03, to lugnet.robotics.rcx.legos)
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| | robot as input device
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Hi, I am not familiar with LegOS but I would like to use the robot as an input device and get all sensor values. Is it possible? regards, kristian (21 years ago, 7-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: Modifying the BrickOS source code
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(...) But remember that changes in the brickOS files and therefore in the resulting brickOS code will allmost certainly crash the user programs. With every new brickOS version you must recompile the user programs that should run on the brick. (...) (21 years ago, 4-Jul-03, to lugnet.robotics.rcx.legos)
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| | USB tool under linux
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Hello there .... I'm really interest about driving the lego USB tower but I need some help :) Is someone know how work the USB tower ? How pilot it ? For the camera I've found a better module than the qce-ga one ! The qc-usb is really better (I've (...) (21 years ago, 2-Jul-03, to lugnet.robotics.rcx.legos)
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| | Re: Modifying the BrickOS source code
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(...) Actually, you don't need to do all that. For the last few versions of BrickOS, things are different. The first time you install BrickOS, you: $ cd /brickos-0.2.6.10 $ configure $ make If everything has been installed correctly, you will find a (...) (21 years ago, 2-Jul-03, to lugnet.robotics.rcx.legos)
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