 | | Re: lnp communication question
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You just pass an array and give the length, to send it. In theory you can send packets with a size up to 255 bytes (look in this group, the info is in here somewhere), but sending 1 byte has a packet loss of aprox. 1% and 4 bytes aprox. 10%, over (...) (24 years ago, 17-May-00, to lugnet.robotics.rcx.legos)
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| | Re: RCX AC adapter
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Except when, as has been said before, you get a really good short. (That is the "You could" part - it's still the load that's key, as you say.) Dennis (...) -- Dennis Williamson - Certified Y2K Complacent Bad News: The next millenium starts on a (...) (24 years ago, 17-May-00, to lugnet.robotics.rcx)
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| | Re: RCX AC adapter
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If you're talking about a _Lego_ 9V train, it's the same adaptor. Dennis (...) -- Dennis Williamson - Certified Y2K Complacent Bad News: The next millenium starts on a Monday. Good News: You get the day off. (remove .NO and SPAM. to reply) (24 years ago, 17-May-00, to lugnet.robotics.rcx)
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| | Re: RCX AC adapter
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(...) The current is determined by the load, not by the source. You could hook the RCX to a 9v 60A supply and it would be fine. (24 years ago, 17-May-00, to lugnet.robotics.rcx)
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| | RE: New pbForth GUI
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(...) Yup, it's your COM port. Rather than put it in a dialog, which is THAT much more code to write and DEBUG, I've put it in rcxoption.tcl - which you would know if you read the installation notes on the web page...:-) (...) Thanks for more (...) (24 years ago, 17-May-00, to lugnet.robotics.rcx.pbforth)
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| | RE: New pbForth GUI
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I poked about a bit also and found: (URL) 3.html This is one source of both givio.sys, and the instdrv.exe which will register the giveio.sys as a system device driver. Instdrv is a console app which has been adapted from the Microsoft DDK version. (...) (24 years ago, 17-May-00, to lugnet.robotics.rcx.pbforth)
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| | Re: local variables
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(...) I think you're confusing the issue a little bit. LegOS only initializes GLOBAL variables when the program is loaded. So, for example, a global variable declared like: int foo = 4; Will only be initialized to 4 when the program is loaded. If (...) (24 years ago, 17-May-00, to lugnet.robotics.rcx.legos)
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| | Re: RCX AC adapter
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I've used my AC adapter from my 9V trains and I've had no problems. I think you can you any old adapter just make sure that you don't put too much current into the RCX or bye,bye.... E-mail lego about it, I did once to find out how much current the (...) (24 years ago, 17-May-00, to lugnet.robotics.rcx)
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| | RCX AC adapter
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Maybe a stupid question, Is there any reason why I can't use any old 9v AC adapter for my RCX? Thanks, Bob (24 years ago, 16-May-00, to lugnet.robotics.rcx)
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| | RE: New pbForth GUI
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Jeff Hazen wote: (...) Me too. I got tired of dinking around with HyperTerminal... I'm not sure at all about an NT installation, so I'm hoping some others will step in here... (...) No, If you unzip the distribution, there should be a .lnk file (...) (24 years ago, 16-May-00, to lugnet.robotics.rcx.pbforth)
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| | local variables
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Hi! I read that legOS only declared varibles the first time the program is run. Does this mean I cannot use local variables. I have loops in different functions using 'i' as looping variable, which is locally declared. Should I avoid this? Tobias (24 years ago, 16-May-00, to lugnet.robotics.rcx.legos)
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| | RE: New pbForth GUI
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This is a great idea, Ralph. I've wanted to just fool around in pbForth, but have been intimidated by the apparent front-end learning curve. I'm a mechanical guy, I don't do TclTk, Gnu, etc., I've been spoiled by GUI front ends and install programs. (...) (24 years ago, 16-May-00, to lugnet.robotics.rcx.pbforth)
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| | Re: proposed new word for deleting pbforth
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(...) As a guess the following string tells the ROM that there is valid firmware. This might need to be stepped on before jumping to the reset vector. .string "Do you byte, when I knock?" (24 years ago, 16-May-00, to lugnet.robotics.rcx.pbforth, lugnet.robotics.rcx)
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| | Re: lnp communication question
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(...) So the length-argument tells lnp_integrity_write how many bytes to send? Doesn't that mean that it would be possible to send an array consisting of many integers, for example? How would this be done? (...) We plan to build a six-legged lego (...) (24 years ago, 16-May-00, to lugnet.robotics.rcx.legos)
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| | winlegos compiler problem
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I am trying out the lnp functionality with addressing and such, and of course I had to recompile the legos kernel. That, in itself, seemed to go without a hitch, but when I later tried to compile one of the demo programs, this is what I got. djecho (...) (24 years ago, 16-May-00, to lugnet.robotics.rcx.legos)
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| | RE: proposed new word for deleting pbforth
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(...) Kekoa, feel free to jump in here... Personally, I think just jumping to the reset vector 0x0000 should do a total cold start, right? Cheers, Ralph Hempel - P.Eng ---...--- Check out pbFORTH for LEGO Mindstorms at: (URL) ---...--- Reply to: (...) (24 years ago, 16-May-00, to lugnet.robotics.rcx.pbforth, lugnet.robotics.rcx)
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| | proposed new word for deleting pbforth
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It would be handy if there was a word that deleted firmware. It is often inconvenient to get at the batteries. At Kekoa I see the opcode but no rom entry point. Trashing the header in memory and jumping to the reset vector might do it. I wonder if (...) (24 years ago, 16-May-00, to lugnet.robotics.rcx.pbforth, lugnet.robotics.rcx)
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| | RE: More linux feedback. firmware upload doesn't work for me.
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(...) This is wierd. I had it working on my Caldera Linux 2.2 which has TclTk 8.0.4 I'll try again. One of the problems is that I can't seem to get a nice NFS system running here, and I have to FTP the files around... :-( I'll try and make a better (...) (24 years ago, 16-May-00, to lugnet.robotics.rcx.pbforth)
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| | More linux feedback. firmware upload doesn't work for me.
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Firmware download is not working. I'm sorry but I never tried this with the first release. A second problem is that it gives no error message if the firmware download fails. I got suspicious because the download was too fast and the LCD was not (...) (24 years ago, 16-May-00, to lugnet.robotics.rcx.pbforth)
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| | Re: New pbForth GUI; linux feedback
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(...) o - When will 1.2.0 sources be available? I'd rather be working from current stuff. Does the gui depend on this version of pbforth? o - rcxtk.tcl should have executable permission in the tarball. This can be done with the -p flag to tar (...) (24 years ago, 16-May-00, to lugnet.robotics.rcx.pbforth)
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