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brickos
(score: 1.746)
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 | | Re: Memory, Motors and Odd Things
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| (...) Hi Steve, Are you using BrickOS 0.2.6.10? In earlier versions, it was possible for malloc() to return pointers to RAM in the range [F010,FB7F], which was shared with the motor port controller. Writing to this memory adversely affected the (...) (21 years ago, 11-Dec-03, to lugnet.robotics.rcx.legos, FTX)
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brickos
(score: 1.746)
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| | Linked Lists in BrickOS
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| Thanks to all that assisted me in getting set up. It turned out to be missing Cygwin packages. My bad. Two problems. Firstly, BrixCC needs to be restarted to compile 'new' code. Is there a way to correct this problem? Also, I'm having trouble (...) (21 years ago, 7-Oct-03, to lugnet.robotics.rcx.legos)
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brickos
(score: 1.746)
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| | NEWBIE question : installing BrickOS
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| HI, preface, I wouldn't know a cygwin from a GCC if it him me in the head. I just want to D/L a .c prg into my RCX I need advice on the process of installing BrickOS on a p233 laptop running W98se. my question is this: What is a reasonable amount (...) (21 years ago, 16-Jan-04, to lugnet.robotics.rcx.legos)
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brickos
(score: 1.746)
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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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brickos
(score: 1.746)
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brickos
(score: 1.746)
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brickos
(score: 1.746)
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| | Re: BrickOS Threading...
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| (...) <snip> (...) Steve, Yes, infact I had tested a couple different applications with the motor controller being called every 1 ms and the same ones with a 2 ms interval. I didn't see a difference with those applications, but did recognize the (...) (22 years ago, 13-Dec-02, to lugnet.robotics.rcx.legos)
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brickos
(score: 1.746)
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| | Re: BrickOS Threading...
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| Steve, I checked in some changes this morning (into cvs) to put the motor controller back at the 1 ms interval. However, I want to complete the get_sys_time() updates that Mark Riley has proposed; so that can be tested as well. I am not sure when (...) (22 years ago, 13-Dec-02, to lugnet.robotics.rcx.legos)
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brickos
(score: 1.746)
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| | Re: Interesting BrickOS Timing Results
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| (...) This would be my favourites. If one builds a fast moving robot, main concern will be how fast the robot reacts to light sensor changes or how small the structures could be that the light sensor will "see". If one builds a thinking robot, for (...) (22 years ago, 14-Jan-03, to lugnet.robotics.rcx.legos)
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brickos
(score: 1.746)
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| | Re: Interesting BrickOS Timing Results
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| (...) The delay was added a long time ago after a bit of discussion on this newsgroup/list. A search through old newsgroup posts will turn up a brief series of three posts with subject "Rom sensor read routine" from Apr/May 1999. The explanation (...) (22 years ago, 15-Jan-03, to lugnet.robotics.rcx.legos)
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brickos
(score: 1.746)
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| | Re: Installing full BrickOS (in an easier way)
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| Carson, Sorry I don't have these packaged together but here is some more hints. One hint when downloading cygwin modules is to change the package listing view. In the upper left hand "Select Packages" window is a button labeled "View". Click on it (...) (22 years ago, 26-Mar-03, to lugnet.robotics.rcx.legos)
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brickos
(score: 1.746)
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| | Re: Problems with BrickOS Installation
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| Carson, It looks like you missed the tar package.You can check to see what Cygwin packages have been installed on your system by using the cygcheck command at the cygwin command prompt. Try cygcheck -c If the output is too large for your dos window (...) (22 years ago, 1-Apr-03, to lugnet.robotics.rcx.legos)
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brickos
(score: 1.746)
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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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brickos
(score: 1.746)
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brickos
(score: 1.746)
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brickos
(score: 1.746)
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| | Re: trouble compiling brickOS
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| (...) I did! (...) It did complain and I did install the hitachi 8300 gcc version. Funny thing, after installing it, the configure script was still complaining that it cannot find the hitachi gcc compiler, although the binaries were right there in (...) (21 years ago, 5-Sep-03, to lugnet.robotics.rcx.legos)
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brickos
(score: 1.746)
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| | Re: BrickOS motor port horrors
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| Well, I don't know much about it being possessed, but you should try to divide the problem probabilities in half. Try loading the original lego firmware. (Yes I know, this brings horror to some of you fellow programmers out there, but its just (...) (21 years ago, 26-Oct-03, to lugnet.robotics.rcx.legos)
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brickos
(score: 1.746)
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brickos
(score: 1.746)
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brickos
(score: 1.746)
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