 | | Re: Firmware download troubles
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(...) It's funny that you should bring this up - I've had exactly the same problems with several RCX's and downloading firmware from BrixCC. The only solution I've been able to find is to download the firmware using the RIS2.0 software and then (...) (22 years ago, 13-Dec-02, to lugnet.robotics.rcx)
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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: 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: 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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| | LEGO MindStorms 2.0: Alternative transmission techniques 2
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Hi, I know that the original post (read below) is kind of old, but the hole project seems quite interesting. I also read the reply that Mario posted. I agree with him in all the points. I'll assume that you want to develop a vehicle, not a robot (...) (22 years ago, 6-Dec-02, to lugnet.robotics.rcx)
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| | Re: LEGO MindStorms 2.0: Alternative transmission techniques
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Hi, I know that the original post (read below) is kind of old, but the hole project seems quite interesting. I also read the reply that Mario posted. I agree with him in all the points. I'll assume that you want to develop a vehicle, not a robot (...) (22 years ago, 6-Dec-02, to lugnet.robotics.rcx)
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| | Re: Controlling larger motors from RCX ??
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Terry, I'd like to have more details about your project. I wonder, wouldn't be easier if you use a PICMicro MCU? or maybe another controller family? Tell me more, maybe I can help. Best Regards, CarlosLuis Rendon M. "Terry King" <tking@together.net> (...) (22 years ago, 5-Dec-02, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
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| | Re: LNPD problem
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At times I have experienced some issues wth using lnp; I was generally able to improve or elliminate the problem by increasing the packet_handler task priority... or lowering all other tasks to be less than the packet handler. (This includes kernel (...) (22 years ago, 4-Dec-02, to lugnet.robotics.rcx)
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| | Re: LNPD problem
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Hi Pieter, I'll take a shot at it... It's possible you may be experiencing a transmission problem on the RCX side. That's not to say that your RCX can't transmit IR data correctly... obviously it can since you are able to download BrickOS and that (...) (22 years ago, 4-Dec-02, to lugnet.robotics.rcx)
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| | LNPD problem
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Hi there, I still don't manage to send any packages from the rcx to the PC. I attached the client and the "receiver program" and here is a fragment of the lnpd log: 148032:Client > connection 1 from host 127.0.0.1, port 33485 148039:Logical > (...) (22 years ago, 3-Dec-02, to lugnet.robotics.rcx)
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| | Re: Motor Control Register (0xf000) and Memory Space 0xFDB0-0xFD7F
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This note is of interest to people who build their own RCX firmware. It provides some additiional insight to the recent post concerning dual use of upper memory range and the motor control register. There's a trade-off between real time performance (...) (22 years ago, 1-Dec-02, to lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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| | Linker crashing
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I recently built binutils 2.13 for h8300-hitachi-hms target (default configuration otherwise) under Mandrake-Linux 9.0. When I use ld to generate an S-record file, it crashes ("Segmentation fault"), but still produces valid output. However, this (...) (22 years ago, 1-Dec-02, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.legos)
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