 | | Re: Debugging the memory circuit
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Ed -- there is an old utility, mon.exe, that might work. it's at ftp://cher.media.mit...os/mon.exe there's a cmd line flag to put it in extended memory mode. fred In your message you said: (...) (25 years ago, 15-Sep-99, to lugnet.robotics.handyboard)
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| | Re: Debugging the memory circuit
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Thanks Fred, Yes, we have several working ones that download and boot just fine. In fact we're going ahead with these, but it means we don't have 1 bot per student. Since the download appears to work, and just the boot does not, I'm stumped. It's (...) (25 years ago, 15-Sep-99, to lugnet.robotics.handyboard)
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| | Re: Is there a device that...?
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Re: Parallel Port... if you want to see how to get 8 input bits, all straightened out, see: (URL) is also a program called SEEBITS that allows you to easily see all the input bits and set the output bits on and off. I am working on a "Parallel Port (...) (25 years ago, 15-Sep-99, to lugnet.robotics.handyboard)
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| | Re: Handy Board list now a LUGNET newsgroup
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The tail end of my message got cut off. All I wanted to say was, "I think it'll be worth it. Yours, Fred" :-) BTW, one nice feature of LUGNET over handyboard@media is that messages get distributed a LOT faster when they come from LUGNET. Fred (...) (...) (25 years ago, 15-Sep-99, to lugnet.robotics.handyboard)
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| | Handy Board list now a LUGNET newsgroup
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Dear all, As announced, the Handy Board mailing list is now also a LUGNET (LEGO Users Group Network) newsgroup. What does this mean to you? It depends; if you are lazy, it can have no effect at all (maybe this is what you want :-). Or, if you are (...) (25 years ago, 15-Sep-99, to lugnet.robotics.handyboard)
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| | Re: Debugging the memory circuit
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Hi Ed -- it *could* be that the desktop you're using isn't set up right to download to the HB's. do you have a known good HB you can use to test the download? alternately, there are some serial line debug instructions at (...) does not boot (...) (...) (25 years ago, 15-Sep-99, to lugnet.robotics.handyboard)
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| | Re: Is there a device that...? [DAT]
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I am currently using my parallel port for the same application. I am not sure how specific your question was, but the output voltage is 5Vdc. However, remember that this is a logic level which means it will not give not give you more than ~20mA ( I (...) (25 years ago, 15-Sep-99, to lugnet.robotics.handyboard)
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| | HandyBoard and Jini
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Hi Has anyone tried Jini on HandyBoard? If so, Can anyone send the links for those websites ? Thanks Kalyan Mulampaka Software Engineer e Information Services ___...___ (25 years ago, 14-Sep-99, to lugnet.robotics.handyboard)
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| | Re: Java VM - Beta2
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wow,i've just had a look at the site and I have to say it sounds very good. When I get some holidays I'll have a look at porting some ic code across and see what I can make happen :-) Adam ----- Original Message ----- From: Peter Gasparik (...) (25 years ago, 14-Sep-99, to lugnet.robotics.handyboard)
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| | Java VM - Beta2
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For those who are interested, the Java VM Beta 2 has been released. Major improvements include: - garbage collection - floating point - demo applications for HB with and without expansion board (URL) (25 years ago, 14-Sep-99, to lugnet.robotics.handyboard)
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| | RE: Is there a device that...?
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In C you can use the functions outport and inport, and the paralell port has TTL levels (5 V.). Bye Jose Luis ----- Original Message ----- From: Mar, Ericson <ericson.mar@csfb.com> To: 'Jaron' <j.paludanus@cable.a2000.nl>; Peter <eacmen@att.net>; (...) (25 years ago, 13-Sep-99, to lugnet.robotics.handyboard)
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| | Re: Is there a device that...?
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Its Easy to do in pascal as well as C++ using the PORT[address] command. Ive used It before to control external devices. A normal parralell pot has 8 outputs D0 - 7 and a few lines that you can use as inputs (not sure which ones though?) The port (...) (25 years ago, 13-Sep-99, to lugnet.robotics.handyboard)
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| | RE: Is there a device that...?
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Yeah! You're right! I've seen it done in Basic so I would assume C++ has a function. But, I don't remeber wether they are at 12V or 5V. (?) (...) (25 years ago, 13-Sep-99, to lugnet.robotics.handyboard)
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| | Re: Is there a device that...?
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Isn't your parallel port itself what you want? I always understood that it could be reached (coded) quite easily? That should give you 7 channels! ----- Original Message ----- From: Peter <eacmen@att.net> To: Handy Board Mailing List (...) (25 years ago, 13-Sep-99, to lugnet.robotics.handyboard)
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| | Re: Four Wheel Base
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I disassembled quite some (lego) models, I also use differential steering. I position the wheels like most models on a square (so width and length of wheel base is equal). Funny thing about a square is that a circle can be drawn from the middle (...) (25 years ago, 13-Sep-99, to lugnet.robotics.handyboard)
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| | Re: ------( Terms of use for lugnet.com )------
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Sorry about this mess below -- this only applies to people reading the HB list via the LUGNET server. The message below was auto-posted by the server when the new newsgroup (which is being gatewayed with the mailing list) was created. I forgot to (...) (25 years ago, 13-Sep-99, to lugnet.robotics.handyboard)
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| | Re: ------( Welcome to lugnet.robotics.handyboard )------
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(This was a special message posted by the LUGNET server to the hb newsgroup, and subsequently echoed back out to the hb mailing list. The gateway preparations are about 98% complete. Still a few loose ends to nail down.) --Todd (...) (25 years ago, 13-Sep-99, to lugnet.robotics.handyboard)
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| | Four Wheel Base
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Hi, Has someone tried a four wheel robot base using diferential traction?, I'm making this question because I'm not sure of the tree wheel configuration, in the last base that I made, the caster wheel has ever maked some bad influence in the robot (...) (25 years ago, 12-Sep-99, to lugnet.robotics.handyboard)
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| | Re: Is there a device that...?
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Peter, There are quite a few different products such as that. The two I use are: PicoScope & PicoLogger - (URL) - By TiePie Engineering (URL) Is there a device that connects to a computers COM or Parallel port that (...) Charles Hacker Lecturer in (...) (25 years ago, 12-Sep-99, to lugnet.robotics.handyboard)
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| | Debugging the memory circuit
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We've assembled two handy boards up to the point where we are testing the downloader. In section 6.0.6 of the assembly guide, it says "If the download process appears to go correctly, but then the Handy Board does not boot with the Interactive C (...) (25 years ago, 12-Sep-99, to lugnet.robotics.handyboard)
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