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 | | Meet on Saturday
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| Hello Baylug friends. Sorry I couldn't stay longer on Saturday. Had a great time though, anyway. Is anybody else having trouble getting to Lugnet today? Also, did anybody happen to take my plan drawing of the Lego logo sign home? I left it on the (...) (25 years ago, 6-Dec-99, to lugnet.loc.us.ca.sf)
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fred
(score: 1.028)
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| | Wanted to Buy: Technic Tracks
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| Hi folks- I'm looking to buy a set of Technic vehicle tracks/treads. They were available in set 8229 "Tread Trekker" and 8414 "Mountain Rambler" both of which came out in 1997. I'd appreciate any help on how to "track" these pieces or sets down :-) (...) (24 years ago, 7-Sep-00, to lugnet.market.buy-sell-trade)
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fred
(score: 1.028)
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| | Re: OC2 and OC3 outputs?
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| Take a look at the schematics, which are linked from the top page of the Handy Board web site. The info you are looking for is in the CPU / memory schematic. For the DC Motor outputs, the board uses a separate output latch---not the timer outputs. (...) (29 years ago, 24-Mar-96, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: expansion board
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| the code has not yet been written. My hope was that some people who got expansion boards might want to do some of the work themselves. For example, the code for dealing with the analog ports can be taken from previous code for the 6.270 board and (...) (29 years ago, 29-Mar-96, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: Fuse on motor power cables
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| (...) All system power, incl. motor pwr, already runs through the existing polyswitch. They're not too fast, so I'm not sure if they'll save you. the motor chips do have over-current protection of their own, though it has been known to fail from (...) (28 years ago, 24-May-96, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: IC loop
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| Hi Wade, You can use the "seconds()" function which reports elapsed time, plus a variable to keep track of when the loop should end: void main() { float end_time; end_time= seconds() + 20.; /* go for 20 seconds */ while (seconds() < end_time) { /* (...) (28 years ago, 23-Jan-97, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: can't download to save my life
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| it sounds like it's *almost* working. 1. did you try DL, not DLM, in full screen dos mode? 2. try both of these as a DOS program. 3. did you try adjusting your serial port parameters in the windows control panel, a la the FAQ? fred (26 years ago, 23-Jun-98, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: Downloading problems
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| Use 6811 Downloader to download pcode_hb.s19. Power cycle, and the Handy Board should beep and display a version message on its LCD screen. Then, run IC modem or IC printer depending on which port you are using. It should be configured to boot with (...) (26 years ago, 26-Dec-98, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: Expansion Board Files
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| take the files out of the expansion-libs directory, and put them in the libs directory. over-write any previous files by the same name. make sure IC is configured to load lib_hb.lis on boot. that should be it... not sure where you're getting hung (...) (26 years ago, 25-Jan-99, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: Resets
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| (...) Well that would do it---it would discharge your battery. You actually should be getting more like 9.6 to 10v from a fully charged battery. Why don't you get an adatper that works and charge your battery until it's slightly warm and then see if (...) (29 years ago, 18-Mar-96, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: L293 vs TI 754410
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| (...) The TI chips should work fine. You might not get a full 2A, but at least a 50% improvement. (...) The traces can handle it, but the PolySwitch fuse should limit total current to about 4 to 5 A. You might need to remove the fuse and live (...) (28 years ago, 10-Jul-96, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: Strange...
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| You need to get the CONFIG register to be set to 0x0c. If it is set to 0x0d, there will be memory conflicts. See the FAQ for an explanation. Try DL.EXE from the freeware DOS package. See ftp://cherupakha.med...2853r2.zip -Fred In your message you (...) (28 years ago, 14-Nov-96, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: SPI header
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| The SPI (synchronous peripheral interface) does not do normal RS-232 (aka "asynchronous serial") in hardware. you must write an assembly language driver to do the timing. at some point in january i plan to release a 1200 baud output driver. if (...) (28 years ago, 3-Dec-96, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: I have a good schematic to post
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| Hi Keith. Send it to me and I'll post it for all. Please send as a GIF not JPG as this is better for line art & text (i.e., a schematic). I can decipher just about any encoding format so use whatever's easiest for you. -Fred In your message you (...) (27 years ago, 22-Apr-97, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: DC adapter
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| a regulated supply would be really nasty when you put the interface board in ZAP mode -- the supply would try to raise the level of the battery to 15v or whatever, and that would be bad. so unless you really know what you are doing, steer clear of (...) (27 years ago, 5-Sep-97, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: Serial Communication %!*#!!--Please Help
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| Hi Peter, There was recently a discussion on the list where it was revealed that the network style cable does NOT work to connect to HB's together. If you go back to the FAQ there will now be correct instructions for making a cable to link two HBs. (...) (26 years ago, 18-Nov-98, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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fred
(score: 1.028)
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| | Re: Fatal Internal Error
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| (...) Are you using the freeware DOS version of IC? If so, please see the FAQ on this problem at: (URL) problem has to do with text file linefeed termination. The FAQ should help you fix this. -Fred (28 years ago, 23-Oct-96, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Re: Generic 68HC11 board question-
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| w/o the ds1233, the contents of the ram will become corrupted during power-up or power-down of the 6811. an r/c could protect during power-up, but wouldn't reset the 6811 during power down. remember it's still trying to execute code as system (...) (27 years ago, 20-May-97, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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| | Windows NT experiences?
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| Hi all, I was wondering if people would please "share" their experiences running Interactive C on Windows NT. Is anyone using the old freeware DOS IC on NT? Did you have any trouble getting it to work? Please send to the list, or me privately if (...) (26 years ago, 9-Jun-98, to lugnet.robotics.handyboard)
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fred
(score: 1.028)
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