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 | | Re: Weird LCD problems
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| Fred, (et al) Actually I did test to make sure that the LCD was receiving the signal. And indeed it was. I did this before I posted and thought I made it clear. So I guess my problem should have been directed elsewehere since it is not entirely HB (...) (29 years ago, 22-Feb-96, to lugnet.robotics.handyboard)
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clear
(score: 1.135)
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| | zener diodes
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| I'm trying to use zener diodes to regulate the voltage being supplied to some motors I'm using with the handy board. I'm curious, though, can zener diodes be placed in parallel to handle more current? My understanding of their properties isn't (...) (29 years ago, 21-Mar-96, to lugnet.robotics.handyboard)
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clear
(score: 1.132)
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| | zener diodes
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| Bad idea. A small difference in ref voltage will drive most of the current through one of the two. That's also why I believe that putting l293D in parallele is also a bad idea. In practice it seems that sometimes it works. It is just a bad design. (...) (29 years ago, 22-Mar-96, to lugnet.robotics.handyboard)
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clear
(score: 1.132)
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horse
(score: 1.129)
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horse
(score: 1.129)
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| | Re: pc com port woes
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| (...) Yes, you need to use a serial card inside your computer that offers add'l com ports. It isn't clear from your message if that is what you have. If so, the trick you are missing is that multiple com ports cannot share the same IRQ. Most or all (...) (28 years ago, 23-Apr-96, to lugnet.robotics.handyboard)
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clear
(score: 1.129)
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horse
(score: 1.128)
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| | Re: Yup, it works.
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| (...) I really tried hard to make this clear -- can you explain the difficulty you had? (...) Yup, you are right. You are either the first person to notice this, or the first to report it! (...) Quiescent RS-232 levels are -10v, so the minus voltage (...) (28 years ago, 3-Jun-96, to lugnet.robotics.handyboard)
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clear
(score: 1.125)
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| | Yup, it works.
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| Well after much delay, I've finally got my first HandyBoard up and running. (I've got another one in parts, but that is a different story) I can confirm that HBDL.exe does *NOT* work on my 133Mhz Pentium under Windows '95. It does work on my 486/33 (...) (28 years ago, 3-Jun-96, to lugnet.robotics.handyboard)
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clear
(score: 1.124)
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| | Re: your mail
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| (...) Very confusing, especially since at the beginning of the same file, there are the lines: * Setup Interrupt for Encoders * LDX #BASE BSET TCTL2,X %00001100 /* Interrupts TIC3,TIC2 rising edge*/ BCLR TFLG1,X %00000010 /* Clear IC3,IC2 Flags */ (...) (28 years ago, 28-Jun-96, to lugnet.robotics.handyboard)
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clear
(score: 1.124)
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| | GWLTC Train Display
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| The Great Western LEGO Train Club (GWLTC) is displaying a 15m (59ft) long train layout in the STEAM Museum of the Great Western Railway in Swindon all this weekend (7-8 October 2006). (URL) display will be in the great hall beside the museum's (...) (18 years ago, 6-Oct-06, to lugnet.loc.uk)
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horse
(score: 1.123)
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| | (no subject)
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| (...) I found this entry in the HC11 handbook, page 10-14. It may help.. "The most common way of clearing a status flag bit in the timer flag registers is to load an accumulator with a mask that has a one in the bit(s) corresponding to the flag(s) (...) (28 years ago, 28-Jun-96, to lugnet.robotics.handyboard)
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clear
(score: 1.122)
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| | BCLR TFLG1,X %11111101?
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| In the file encoders.asm, there's a section like: Port1_ShaftInt: LDX variable_port1_shaft_count [stuff deleted] BCLR TFLG1,X %11111101 RTI I'm trying to figure out what the BCLR line does. Why does it clear the bits of all the timers _except_ the (...) (28 years ago, 28-Jun-96, to lugnet.robotics.handyboard)
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clear
(score: 1.121)
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| | (no subject)
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| (...) I agree that the "software" solution in an HC11 is limiting. It is this limitation that I am trying to overcome in hardware. Rather than shift a bit-pattern out for PWM, I would use three of the built-in timers to accomplish the task. One (...) (28 years ago, 27-Jun-96, to lugnet.robotics.handyboard)
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clear
(score: 1.121)
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horse
(score: 1.121)
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| | Re: How to disable ROM on E9 part?
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| I hate replying to my own posts, but I think I know a bit more about the problem now, therefore different questions are in order. Answer to my first question: It looks like the HC11 is supposed to automatically clear the EEPROM, CONFIG, and RAM if (...) (28 years ago, 1-Jul-96, to lugnet.robotics.handyboard)
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clear
(score: 1.121)
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| | Handyboard LCD
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| Please, anyone has any suggestion to solve this problem? I haven't used the LCD display in the parts list, but one LCD 20 char by 4 rows... why? 8^) well, I've got 3 of this around and to buy another seemed not so good idea! This display doesn't (...) (28 years ago, 3-Jul-96, to lugnet.robotics.handyboard)
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clear
(score: 1.121)
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| | Cleaning My Brickshelf Gallery
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| Hey all, I have decided to clean out all the older MOCs from my Brickshelf Gallery as I am ashamed by their quality and I hope to make room for new and improved ones. The ones being cut are mainly old CC entries and Medieval Marketplace Standard (...) (18 years ago, 15-Nov-06, to lugnet.castle, lugnet.western, FTX)
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horse
(score: 1.116)
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| | Re: Your LEGO Dream Set?
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| I think that they should bring back the older series and redo them. Come on, you can come up with some many new ideas for the old themes. For example. Paradisa sets (which I have been buying a lot of in the last 6 months) should be redone. I have (...) (18 years ago, 27-Nov-06, to lugnet.ambassadors, FTX)
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horse
(score: 1.114)
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horse
(score: 1.111)
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