 | | BrickOS Threading...
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I'm having a problem, and I hope someone can help me. I've been running winLegOS, and I've switched to the latest version of BrickOS. I created a way to control the motors, which will reliably speed them up, and slow them down by using different (...) (22 years ago, 12-Dec-02, to lugnet.robotics.rcx.legos)
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| | sys_time (long post)
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As I was poking around in the BrickOS kernel, it occurred to me that using the sys_time variable isn't entirely safe. Since sys_time is 32-bits and the processor can only read 16-bits at a time into a register, there is a period of time between the (...) (22 years ago, 12-Dec-02, to lugnet.robotics.rcx.legos)
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| | Re: Cygwin under Virtual PC on OS X
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(...) David, I was not sure how you tried to build the cross compiler but I know that Apple provides several gnu tools that work under Darwin. Darwin from my understanding is the underlying code for the Mac OS X (See FAQ at (URL) So one might be (...) (22 years ago, 12-Dec-02, to lugnet.robotics.rcx.legos)
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| | Re: Cygwin under Virtual PC on OS X
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Oops, Sorry if I accidentally gave anyone false hope, I ment to say: I have not found any cross compiler packages for LegOS or the Hitachi H8 that are buildable under OS X (but would love to find one). Anyone know of any? (...) (22 years ago, 12-Dec-02, to lugnet.robotics.rcx.legos)
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| | Re: Firmware download troubles
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(...) Look at Edit/Preferences. On the General tab is a checkbox labeled "Use fast mode when downloading firmware" You can uncheck that option to use normal speed firmware downloads via BricxCC. John Hansen (URL) (22 years ago, 10-Dec-02, to lugnet.robotics.rcx)
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| | Re: Firmware download troubles
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The low buzz tone is an error generated by the ROM firmware for failure condition detected as part of the "unlock firmware" opcode. There are two causes of this. [1] ROM software calculates a checksum value of the downloaded firmware and this (...) (22 years ago, 10-Dec-02, to lugnet.robotics.rcx)
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| | Re: Firmware download troubles
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(...) ... (...) Dick and others, Thanks - this helped. What I did to solve this was run the NCQ command-line download at "normal" speed. This worked the first time. Interestingly, I am not sure that the Bricx (v3.3) download was running quad speed (...) (22 years ago, 10-Dec-02, to lugnet.robotics.rcx)
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| | Re: Firmware download troubles
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A likely explanation for your downloading problem is the following. Standard Lego software uses 2400 baud data rate and a protocol that sends "double" bytes. The "double" byte is that each data byte is followed by its complement. Alternative (...) (22 years ago, 10-Dec-02, to lugnet.robotics.rcx)
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| | RE: Installation Help!
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Max, Aha! I did that and it got a lot further this time, but still failed. I'll have to wade through the log file to try and pinpoint where it went wrong as I don't want to post the whole 180k. Thanks for your help! Andy -----Original Message----- (...) (22 years ago, 10-Dec-02, to lugnet.robotics.rcx.legos)
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| | Re: Firmware download troubles
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Matt, I discovered that the IR LED's and detector on my serial tower was located higher than I expected and pointed upward somewhat. I was able to get better transfers when the tower was leaning forward (pointing downward so to speak). Otherwise, I (...) (22 years ago, 9-Dec-02, to lugnet.robotics.rcx)
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| | Re: Firmware download troubles
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Also: When it seems to get to the very end before the error appears, I sometimes get a long (3-4 seconds) low tone from the RCX. Matt (22 years ago, 9-Dec-02, to lugnet.robotics.rcx)
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| | Firmware download troubles
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Hi All, I have pulled my RCX out of summer storage and I am trying to bring it to life. I have tried to download the 2.0 Firmware (firm0328.lgo) dozens of times with no success. It starts to download, then somewhere in the middle, or very close to (...) (22 years ago, 9-Dec-02, to lugnet.robotics.rcx)
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| | Re: Installation Help!
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(...) You need to install the Cygwin gcc package. You need the normal Cygwin gcc to build the Cygwin->H8300 cross-compiler gcc. Max. (22 years ago, 9-Dec-02, to lugnet.robotics.rcx.legos)
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| | Re: installation of cygwin and legos/brickos
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John, It looks as if you don't have the cross compiler or it is is not in a known directory. Try searching your entire hard drive for h8300. That might bring something up. You should have either tired to build the cross compiler or downloaded it (...) (22 years ago, 9-Dec-02, to lugnet.robotics.rcx.legos)
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| | Re: Installation Help!
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Thanks for the info! I checked and I do have grep installed. But I did not install anything other than was listed. I initially tried to install everything but the download died after a couple of hours on my T1 connection. Would some kind person with (...) (22 years ago, 9-Dec-02, to lugnet.robotics.rcx.legos)
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| | Re: Installation Help!
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(...) Hi Max, I got: $ gcc -v BASH: gcc: command not found but the command I am running to get all this output is the buildgcc.sh command to build gcc. Andy (22 years ago, 9-Dec-02, to lugnet.robotics.rcx.legos)
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| | Re: Ultimate Builders Set for Mac?
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All the instructions on the UBS CD are jpegs and quicktime movs. This means that you can read them on a mac without using virtual PC, and if you have Quicktime Pro, you can join them all together as a slide show. Look on the CD in shared/build. I (...) (22 years ago, 9-Dec-02, to lugnet.robotics.rcx)
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| | Re: Ultimate Builders Set for Mac?
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James, Thanks for the helpful info! If a PC is really needed only for reading the build instructions, do you think I could read them using Virtual PC running on my Mac? Dean (...) (22 years ago, 9-Dec-02, to lugnet.robotics.rcx)
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| | Re: Ultimate Builders Set for Mac?
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The LEGO pieces you get with the Ultimate Builders Set are a nice addition to any collection. However, the software with all the instructions for all the models only runs on the PC. All the behaviors are completely possible with Robolab but without (...) (22 years ago, 9-Dec-02, to lugnet.robotics.rcx)
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| | Ultimate Builders Set for Mac?
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We use Robolab software and the RCX on our Power Macintosh G3. Will the Ultimate Buiders Set work for us in that environment? Dean (22 years ago, 8-Dec-02, to lugnet.robotics.rcx)
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