Results 121 – 140 of about 1900.
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 | | run two servo motors from your HB!
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| Hi all, I have written new servo code, creating two independent interrupt driven routines. each one can run its own servo motor, so you have full control of two servo motors from a basic HB, no expansion board required. Full info including source, (...) (28 years ago, 13-Sep-96, to lugnet.robotics.handyboard)
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fred
(score: 0.981)
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| | Re: IC on Tcomp?
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| Good question. In principle, the answer is yes. The base requirements for running IC are the 6811, 32K ram, and a serial port. In practice, no one has modified the pcode for a "generic" system configuration. One tricky part would be disabling the (...) (28 years ago, 17-Sep-96, to lugnet.robotics.handyboard)
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fred
(score: 0.980)
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fred
(score: 0.980)
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| | SPI
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| |> 2) Can I just connect the 4 SPI pins to each other (SS to SS, MISO to MISO, |> MOSI to MOSI, SCLK to SCLK), or do I need to cross connect MISO and MOSI? |> Are there any termination requirements, etc? | |MISO = master in slave out |MOSI = master (...) (28 years ago, 20-Sep-96, to lugnet.robotics.handyboard)
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fred
(score: 0.980)
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fred
(score: 0.980)
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| | using Buffalo with the HB
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| Ronan -- I don't think it's the LCD per se that is causing problems, but rather the fact that the HB runs the 6811 in special mode. The main effect of this is that the interrupt vectors, including the reset vector, live at $bfc0 to $bfff rather than (...) (28 years ago, 1-Oct-96, to lugnet.robotics.handyboard)
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fred
(score: 0.979)
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| | how to unsubscribe
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| Greetings everyone, This is a friendly reminder that I, Fred Martin, am the only one who can fulfill your request to be unsubscribed. Therefore, please send such messages to me directly. Remember, that's also how you subscribed in the first place. A (...) (28 years ago, 25-Oct-96, to lugnet.robotics.handyboard)
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fred
(score: 0.979)
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fred
(score: 0.979)
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fred
(score: 0.978)
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fred
(score: 0.978)
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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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fred
(score: 0.978)
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| | Thanks, Fred
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| Fred, Thanks for giving us this great design. I appreciate it and I enjoyed building my Handy Board from a kit. I do have two corrections, though. No big deal, just typos. In the on-line assembly instructions, J15 is referred to as J14 at one point, (...) (28 years ago, 27-Dec-96, to lugnet.robotics.handyboard)
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fred
(score: 0.978)
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fred
(score: 0.977)
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| | Re: Wrong port or boot mode.
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| Several possibilities: * sometimes serial port stuff breaks on the fastest machines. do you have a slower computer you can try? * the cable is straight-thru (a modem cable, actually). * did you check that the interface output voltages behaved (...) (28 years ago, 18-Oct-96, to lugnet.robotics.handyboard)
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fred
(score: 0.977)
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| | Re: 68HC11 Pins
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| (...) These pins form the "Serial Peripheral Interface" (SPI) circuit, which can be used to link 6811s with a 1 megabaud network connection. They also are individually addressable I/O pins. See the FAQ (URL) look for the answer to "Does the Handy (...) (28 years ago, 20-Oct-96, to lugnet.robotics.handyboard)
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fred
(score: 0.977)
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| | Re: HB assembly errors.
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| (...) OK, this indicates a particular problem. If the BATT LED is fully lit, it means that system voltage is less than 4.5v. Typically, if you are powering your system from the SIB, this indicates some kind of board short. I would remomve all (...) (28 years ago, 19-Oct-96, to lugnet.robotics.handyboard)
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fred
(score: 0.977)
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fred
(score: 0.977)
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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: 0.977)
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| | Re: Bootstrap Mode, Problem
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| 1. first, check if the board can go into DL mode when it is not attached to the host computer. power on with STOP held down, and it should go into DL mode, indicated by both the BATT and PWR LEDs lighting briefly and then turning off and staying (...) (28 years ago, 24-Oct-96, to lugnet.robotics.handyboard)
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fred
(score: 0.977)
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| | Re: Bootstrap Mode, Problem
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| In your message you said: (...) (1) I assume when you say "miniboard," you actually mean the Serial Interface/Charger board. please be careful with your language because the Mini Board is a different specific project that is not part of the Handy (...) (28 years ago, 24-Oct-96, to lugnet.robotics.handyboard)
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fred
(score: 0.977)
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